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Inventory of the National Fire Danger Rating System Collection,
1911 - 2004

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Descriptive Summary

Abstract: A team of fire scientists and fire control personnel began work on the National Fire Danger Rating System in 1959, and tested the partially-developed system throughout the United States. The system, which sought to determine the probability of forest fire, became fully operational in 1972.
The collection includes memoranda and correspondence among fire researchers and fire control personnel, as well as scientific work product documents such as data tables, graphs, charts, maps, fire danger rating devices, and research project documentation, ranging in date from 1911 to 2004. The materials in the collection document the process by which John Keetch and other research scientists combined regionally specific criteria for fire danger rating into a nationally applicable fire danger rating system. Later materials, created and collected by Dale D. Wade, reflect the subsequent shift in research priorities of the next generation of fire control scientists, from fire predictability toward studies in prescribed burning, air quality, and fire weather.
Title: National Fire Danger Rating System Collection, 1911 - 2004
Repository: Forest History Society Library and Archives
Call Number: 2008-001
Language of Material: Material in English
Extent: 10.5 linear feet
(7 record cartons)

Historical Note

Following H.T. Gisborne's invention of the first Fire Danger Meter in 1939, eight distinct fire prediction systems were in use across the United States. Fire researchers recognized the need for a national system to determine the probability of forest fire. A team of fire scientists and fire control personnel, including field researcher John J. Keetch, began work on the National Fire Danger Rating System in 1959, and tested the partially-developed system throughout the United States. The system became fully operational in 1972.

After development of the national system, research priorities of the next generation of fire control scientists, such as Dale D. Wade, shifted away from fire predictability toward studies in prescribed burning, air quality, and fire weather.


Collection Overview

The collection includes memoranda and correspondence among fire researchers and fire control personnel, as well as scientific work product documents such as data tables, graphs, charts, maps, fire danger rating devices, and research project documentation, ranging in date from 1911 to 2004. The materials in the collection document the process by which John Keetch and other research scientists combined regionally specific criteria for fire danger rating into a nationally applicable fire danger rating system. Later materials, created and collected by Dale D. Wade, reflect the subsequent shift in research priorities of the next generation of fire control scientists, from fire predictability toward studies in prescribed burning, air quality, and fire weather.

Collection Arrangement

1. Fire Danger Bound Volumes, 1952-1964

2. Subject Files, 1911-2004



Subject Headings

  • Wade, Dale D.
  • Forest fire forecasting -- United States
  • Forest fires -- United States -- Prevention and control
  • Keetch, John J. (John James), 1911-
  • Wildfire forecasting -- United States
  • Wildfires -- United States--Prevention and control

Detailed Description of the Collection

1. Fire Danger Bound Volumes, 1952-1964.

Box 1   Folder 1-3
"1952 Forest Fires and Fire Danger In..."
Box 1   Folder 4-5
"1953 Forest Fires and Fire Danger In..."
Box 1   Folder 6-8
"1954 Forest Fires and Fire Danger In..."
Box 1   Folder 9-11
"1955 Forest Fires and Fire Danger In..."
Box 1   Folder 12-14
"1956 Forest Fires and Fire Danger In..."
Box 1   Folder 15-17
"1957 Forest Fires and Fire Danger In..."
Box 1   Folder 18-20
"1958 Forest Fires and Fire Danger In..."
Box 1   Folder 21-23
"1959 Forest Fires and Fire Danger In..."
Box 2   Folder 24-25
"1960 Forest Fires and Fire Danger In..."
Box 2   Folder 26-27
"1961 Forest Fires and Fire Danger In..."
Box 2   Folder 28-29
"1962 Forest Fires and Fire Danger In..."
Box 2   Folder 30-31
"1963 Forest Fires and Fire Danger In..."
Box 2   Folder 32-33
"1964 Forest Fires and Fire Danger In..."

2. Subject Files, 1911-2004.

Box 2   Folder 34
Annual Reports of Southern Forest Experiment Station, 1957-1963
Includes Annual Report, 1957, Southern Forest Experiment Station, Philip A. Brieglieb, director, focus on fire control and the direct effects of fire on the environment, as well as fuels and fire behavior; 1958 at the Southern Forest Experiment Station, Philip A. Brieglieb, director, summarizes SFES' research in fire prevention, causes, and fuel measurement; 1959 at the Southern Forest Experiment Station, Philip A. Brieglieb, director, summary of research at SFES in fire meteorology, predicting fire loads, and prescribed burning; 1960 at the Southern Forest Experiment Station, Philip A. Brieglieb, director, summary of research at SFES includes such topics as the effect of heat on vegetation, the heat resistance of bark, estimating the mortality of fire-damaged trees, and the intersection of rainfall and fire; 1962 at the Southern Forest Experiment Station, summary of research at the SFES includes such topics as drought and fuel moisture, and bark characteristics and fire resistance; 1963 at the Southern Forest Experiment Station, Walter M. Zillgitt, director, summary of research at the SFES includes such topics as fire prevention, mountain fire danger, and the heating of cambium in surface fires.
Box 2   Folder 35
Annual Reports of the Georgia Forest Research Council, 1957-1967
Box 2   Folder 36
Annual Reports of the Southeastern Forest Experiment Station, 1957-1960
Includes Annual Report 1960, Southeastern Forest Experiment Station, Asheville, NC; Report for 1961, Southeastern Forest Experiment Station, Asheville, NC; 1962 at the Southeastern Forest Experiment Station, Asheville, NC; 1963 Research at the Southeastern Forest Experiment Station, Southeastern Forest Experiment Station, Asheville, NC; Research at the Southern Forest Fire Laboratory, Southeastern Forest Experiment Station, Asheville, NC, October 1961; Annual Report of the Southeastern Forest Experiment Station, 1957, summary of research, forest fire chapter includes information on fire behavior, fire physics, and fire training; Annual Report of the Southeastern Forest Experiment Station, 1958, summary of research, forest fire chapter includes information on estimating drought conditions, fire behavior, the unified fire danger system, aerial fire suppression, and classification of forest fuels; Annual Report of the Southeastern Forest Experiment Station, 1959, summary of research, forest fire chapter includes information on forest fuels, fire behavior, and prescribed burning.
Box 2   Folder 37
Annual Reports of the Southeastern Forest Experiment Station, Excerpts, 1948-1963
Includes photocopy excerpted from Biennial Report of the Southeastern Forest Experiment Station for the Years 1947 and 1948, Station Paper No. 2, summarizes research of the SEFES and includes topics such as better fire protection, use of the new fire danger meter, the comprehensive fire bulletin, and fire prediction; Photocopy excerpted from Biennial Report of the Southeastern Forest Experiment Station for the Years 1949 and 1950, summary of research of the SEFES including such topics as fire protection, fire behavior, fire damage appraisal, fire danger measurement, and fire prediction; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station 1951, E.L. Demmon, director, summarizes research of the SEFES including such topics as fuel moisture, fire behavior, and increased use of fire danger measurements; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station 1952, Station Paper No. 22, E.L. Demmon, director, summarizes research of the SEFES including such topics as the cumulative fire danger index, fire danger stations, and the effects of atmospheric stability on forest fires; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station, 1953, Station Paper No. 34, E.L. Demmon, director, summarizes research of the SEFES including information on the development of a new fire danger meter Type 8-W; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station, 1954, Station Paper No. 50, E.L. Demmon, director, summarizes forest fire research in the area of effect of wind profiles on fire behavior; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station, 1955, E.L. Demmon, director, summarizes research in the application of fire danger measurements; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station, 1956, Joseph F. Pechanec, director, includes research summaries on topics such as the Buckhead Fire, Georgia Fire Problem Analysis, number of fires burned related to burning index, and testing the 8-100-O fire danger meter in the Longleaf-Slash Region; Photocopy of excerpt from Annual Report of the Southeastern Forest Experiment Station, 1961, summary of research contains such topics as fire weather and fire danger measurements, fire models, fire and the environment, sand casting, and prescribed burning.
Box 2   Folder 38
Brochures, circa 1971, circa 1998, and undated
Includes brochure entitled "Joint Fire Science Program," describing the collaboration among the US Forest Service, the Bureau of Indian Affairs, the Bureau of Land Management, the National Park Service, the US Fish and Wildlife Service and the US Geological Survey, established to fill gaps in knowledge about forest fires and fuels, c. 1998; Brochure entitled "Fire and Fire Surrogate Study in the Southern Coastal Plain: Treatments for Fuel Reduction," by the Joint Fire Science Program, no date; Brochure entitled "Managing Fires in Southern Forests: A Look Ahead," Southeastern Forest Experiment Station cooperating with Seaboard Coast Line Railroad Company, Columbia, SC, c. 1971.
Box 2   Folder 39
Burning Index, 1949 and 1957
Includes rough draft of "Burning Index and Relative Fire Occurrence in the Northeast" by A.W. Lindenmuth, Jr. and John J. Keetch, September 14, 1949; Table showing "Normal Burning Index on National Forests of Region 7, based on 1943-1952 data, adjusted to meter 8," revised June 15, 1956, with attached memorandum denoting revision of the normal Burning Index; Excerpt from Journal of Forestry, Volume 57, Number 9, September 1957, criticizing the use of more than two variables to compute the burning index, by William E Reifsnyder, Yale School of Forestry.
Box 2   Folder 40
Canada
Box 2   Folder 41
Damage Appraisal Meter
Box 2   Folder 42
Data
Box 2   Folder 43
Equipment
Includes mortarboard psychrometer templates, bill of materials, specs, USFS Research Paper SE-5 "Mortarboard Psychrometer" by Dee Taylor, 1963, instructions for assembling, notes and letters pertaining to this instrument; List of anemometer suppliers and addresses, March 21, 1946; Letter from John Keetch to "The Files" listing sources and prices for fire danger measuring equipment, May 23, 1946, revised May 1948; Specification for a Fuel Moisture Stick Support Suitable for Use at Open-Type Fire Danger Stations, with Litter Box and Shade Screen Support Plan Suggested by Southeastern Forest Experiment Station on back, March 12, 1958; Bill of Materials and Details of Weighing Shelter [no date]; Specification for Shade Screen Frame and Support for Fuel Moisture Installation at an Open Fire Danger Station, January 29, 1958; Specification for Suggested Ground Plan for Open-Type Fire Danger Station, T.G. Storey, 1956; Proposed Specification for Anemometer, Floating Ball Type, Plastic, April 17, 1963; Handmade untitled calculator by R Nelson showing Burning Index by class day for various Dewpoint temperatures and dry bulb temperatures, April 21, 1954.
Box 2   Folder 44
Fire Control Conferences and Meetings, 1945, 1949, 1955, 1961, and 1997
Box 2   Folder 45
Fire Control Conferences and Meetings -- Denver Meeting March 25-28, 1963
Box 2   Folder 46
Fire Control Conferences and Meetings -- National Forest Fire Laboratory, Missoula, MT, May 1-4, 1961
Box 2   Folder 47
Fire Danger Measurement, 1940-1961 and undated
Box 2   Folder 48
Fire Danger Meter, Appalachian Region, 1937, 1938, and 1949
Includes 1 early Forest Fire Danger Meter issued by the Appalachian Forest Experiment Station, Asheville, NC, July 1937; Example of early Forest Fire Danger Meter for Southern Appalachian Mountains, Meter Type #4, issued by the Appalachian Forest Experiment Station, Asheville, NC, September 1937; Example of early Forest Fire Danger Meter issued by the Appalachian Forest Experiment Station, Asheville, NC, for Piedmont and Coastal Plain, Type #6, February 1938; WV Conservation July 1949 containing 2 articles on fire danger.
Box 2   Folder 49
Fire Danger Meter, Burning Index Meter Model 8, 1955
Includes 1 plastic Burning Index Meter Model 8, issued by the Intermountain Forest and Range Experiment Station, Ogden, UT, 1955.
Box 2   Folder 50
Fire Danger Meter, Central States
Includes table for Finding the Adjusted Days Since Rain to Us When Precipitation is Recorded at 8:00 A.M., with handwritten label that reads "Central States Meter."
Box 2   Folder 51
Fire Danger Meter, Dispatcher's Guide Meter, 1945
Includes Dispatcher's Guide Meter, High Spreading Fuels, 1945; Dispatcher's Guide Meter, Low Spreading Fuels, 1945; Dispatcher's Guide Meter, Extreme Spreading Fuels, 1945; Dispatcher's Guide Meter, Medium Spreading Fuels, 1945; Dispatcher's Guide Meter for estimating fuel moisture, 1945.
Box 2   Folder 52
Fire Danger Meter, Lake States Burning Index Meter, 1938 and 1949
Includes 1 Lake States Burning Index Meter prepared by the Lake States Forest Experiment Station, University Farm, St. Paul, Minnesota, 1949; Explanation of the Lake States Fire Danger Meter issued by the Lake States Forest Experiment Station, March 15, 1938; "Supplemental Instructions for Using Lake States Burning Index Meter," Revised 1949, May 20, 1949, with cover letter from M.H. Davis to Lake States Forests, March 29, 1949.
Box 2   Folder 53
Fire Danger Meter, Longleaf-Slash Pine Type, 1939 and undated
Includes 2 examples of Longleaf-Slash Pine Forest Fire Danger Meters, issued by Southeastern Forest Experiment Station, Asheville, NC, no date. One annotated "test meter." Example of 2 slide-rule type rectangular Longleaf-Slash Pine Fire-Danger Meters issued by Southern Forest Experiment Station, November 1939; Document entitled "Instructions for Dispatchers in Using the Longleaf Slash Pine Fire-Danger Meter," by C.A. Bickford and David Bruce, Southern Forest Experiment Station, November 24, 1939; "Report on the 100-Point Longleaf-Slash Pine Test Meter," by A.W. Lindenmuth, Jr., December 4, 1950.
Box 2   Folder 54
Fire Danger Meter, Make 3 by A. G. McArthur, 1962-1963
Includes forest fire danger meter Make 3 designed by A. G. McArthur, Canberra, Australia, 1963; Attached letter from A. Hodgson to John Keetch regarding fire danger meter and fire danger tables; Set of Fire Danger Tables, 1962.
Box 2   Folder 55
Fire Danger Meter, Melin Fire Danger Meter
Includes example of J.B. Melin, meteorologist, forest fire danger meter for use in the state of Washington.
Box 2   Folder 56
Fire Danger Meter, Northern Rocky Mountain Region, 1942 and undated
Includes 1 Forest Fire Danger Meter applicable to brush-covered burns, contains vegetation index, issued by the Northern Rocky Mtn. Forest and Range Experiment Station, Missoula, MT; 1 Forest Fire Danger Meter issued by the Northern Rocky Mtn. Forest and Range Experiment Station, Missoula, MT; "Measurement of Forest Fire Danger Variables in the Northern Rocky Mountain Region," Northern Rocky Mountain Forest and Range Experiment Station, June 10, 1942 with attached Burning Index meter.
Box 2   Folder 57
Fire Danger Meter, Prescribed Burning Meter D-1
Includes instructions for Prescribed Burning Indicator D-1 for Southern Coastal Plain; Prescribed Burning Indicator D-1; Page of handwritten notes entitled "Meter Development."
Box 2   Folder 58
Fire Danger Meter, Rate of Spread Meter, 1954
Includes 1 Rate of Spread Meter for use in the Southwestern Region, contains Litter Moisture Factor Adjuster, 1954.
Box 2   Folder 59
Fire Danger Meter, Rocky Mountain Region
Includes 1 Forest Fire Danger Meter, Northern Rocky Mountain Region, Missoula, Montana.
Box 3   Folder 60
Fire Danger Meter, Spread Index Meter, 1967
Includes 1 plastic Spread Index Meter contained in envelope, for use with National Fire Danger Rating System, 1967.
Box 3   Folder 61
Fire Danger Meter, Spread Index to Rate of Spread Conversion Meter, 1967
Includes 1 Spread Index to Rate of Spread Conversion Meter. Folder Contents: 1 Spread Index to Rate of Spread Conversion Meter for use with the National Fire Danger Rating System in the Intermountain Area, designed by R.J. Barney and W.C. Fischer, 1967.
Box 3   Folder 62
Fire Danger Meter, Type 5-A, 1938
Includes 1 rectangular paperboard Forest Fire Danger Meter Type 5-A, for use in the mountainous regions of the eastern United States, designed by George M. Jemison, October 1938.

Fire Danger Meter, Type 5-A

Box 3   Folder 63
Fire Danger Meter, Type 5-B, 1942
Includes 2 examples of early rectangular cardboard slide rule type Forest Fire Danger Meters for use in the Mountainous Regions of the Eastern United States.
Box 3   Folder 64
Fire Danger Meter, Type 5-O, July 1, 1948
Box 3   Folder 65
Fire Danger Meter, Type 5-W, 1950
Includes "Report on the Wide Range 100-Point Mountain Test Meter," by A.W. Lindenmuth, Jr., November 7, 1950.
Box 3   Folder 66
Fire Danger Meter, Type 7, 1939
Includes 1 forest fire danger meter Type 7, for use in the coastal plain regions of the southeastern United States, designed by George W. Jemison, October 1939; Memorandum for director from George W. Jemison in re: fire danger meter Type 7, August 12, 1939; Example of Forest Fire Danger Meter, Type 7, for use in the Coastal Plain regions of the Southeastern United States, issued by Southeastern Forest Experiment Station, Asheville, NC; "Report on the 100-Point Coastal Plain Test Meter," by A.W. Lindenmuth, Jr., January 3, 1951.
Box 3   Folder 67
Fire Danger Meter, Type 8-100-O, October 1954
Includes 2 examples of Forest Fire Danger Meter Type 8-100-O, issued by the Southeastern Forest Experiment Station in Asheville, North Carolina, one annotated thusly: "Adjusted Meter IME-GILA, use with fuel moisture factors graph." 8.5" x 11" paperboard, 8-100-O System Fire Danger Weather Codes on one side and table of National Fire Danger System codes on the other.
Box 3   Folder 68
Fire Danger Meter, Type 8-100-W, October 1954
Includes 1 Forest Fire Danger Meter Type 8-100-W, October 1954, issued by Southeastern Forest Experiment Station, Asheville, North Carolina.
Box 3   Folder 69
Fire Danger Meter, Type 8-O, January 1954
Includes 1 Forest Fire Danger Meter Type 8-O, January 1954, issued by the Southeastern Forest Experiment Station, Asheville, North Carolina; Station Papter No. 33 "Instructions for Using Forest Fire Danger Meter Type 8," by John Keetch, Southeastern Forest Experiment Station, January 1954.
Box 3   Folder 70
Fire Danger Meter, Type 8-W, January 1954
Includes 1 Fire Danger Meter Type 8-W, January 1954; Station Papter No. 33 "Instructions for Using Forest Fire Danger Meter Type 8," by John Keetch, Southeastern Forest Experiment Station, January 1954.

Fire Danger Meter, Type 8-W

Box 3   Folder 71
Fire Danger Meter, Type C-W
Includes 1 Forest Fire Danger Meter, Type C-W, issued by Southeastern Forest Experiment Station, Asheville, NC. Back identifies it as, "Mountain Test Meter for use in the Northeastern and Mountainous Sections of the Southeastern United States Where Wind and Fuel Moisture Measurements are Made Under Natural Forest Conditions."
Box 3   Folder 72
Fire Danger Rating -- Region 5, 1962 and undated
Box 3   Folder 73
Fire Danger Rating -- Region 6, 1968
Box 3   Folder 74
Fire Weather -- Region 6, 1960
Box 3   Folder 75-78
Fire Weather -- Region 8, 1960-1982
Box 3   Folder 79
Forest Fire Causes, 1978
Box 3   Folder 80
Forest Fire Danger Stations, 1948
Box 3   Folder 81
Forest Fire Statistics, 1916-1929
Box 3   Folder 82
Forest Fire Statistics, 1929-1934
Box 3   Folder 83
Forest Fire Statistics, 1935-1939
Box 3   Folder 84
Forest Fire Statistics, 1940-1956
Box 3   Folder 85
Forest Fire Statistics, 1966-1970
Box 3   Folder 86
Forest Fire Statistics, 1971-1976
Box 3   Folder 87
Forest Fire Summaries, 1952-1975
Box 3   Folder 88
Forms, 1939-1966
Box 3   Folder 89
Fuel Moisture, 1947-1965 and undated
Box 3   Folder 90
Handbooks and Manuals -- Fire Danger Rating Category 2: Handbook, Reviews and Comments, 1963
Box 4   Folder 91
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Category 2, 1963-1964 and undated
Box 4   Folder 92
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Region 10 Supplements, 1964-1967
Box 4   Folder 93
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Region 6 Supplements, 1959-1969
Box 4   Folder 94
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Region 7 Supplements, 1954-1971
Box 4   Folder 95-96
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Region 8 Supplements, 1964-1986
Box 4   Folder 97
Handbooks and Manuals -- National Fire Danger Rating System Handbook, Region 9 Supplements, 1964-1967
Box 4   Folder 98
Handbooks and Manuals -- Weather Bureau Observing Handbook No. 2, 1970
Box 4   Folder 99
Initial Attack Strength Calculator
Box 4   Folder 100
Law and Legislation, 1925
Box 4   Folder 101
Line Project Annual Reports, 1956-1958
Box 4   Folder 102
Line Project Annual Reports, 1959
Box 4   Folder 103
Line Project Annual Reports, 1960
Box 4   Folder 104
Line Project Annual Reports, 1961
Box 4   Folder 105
Line Project Annual Reports, 1962
Box 4   Folder 106
Line Project Annual Reports, 1963-1969
Box 4   Folder 107
Line Project Annual Reports, 1970-1972
Box 4   Folder 108
Manning, 1956-1962
Box 4   Folder 109
National Fire Planning Instructions, circa 1972
Box 4   Folder 110
National Forest Fire Reports, 1941-1949
Box 4   Folder 111
National Forest Fire Reports, 1950-1959
Box 5   Folder 112
National Forest Fire Reports, 1960-1969
Box 5   Folder 113
National Forest Fire Reports, 1970-1974
Box 5   Folder 114
National Forest Fire Reports, 1985 and 1992-1993
Box 5   Folder 115
Planning, 2002
Box 5   Folder 116
Policy, 1989-1997 and undated
Box 5   Folder 117-118
Prescribed Burning, 1937-1992 and undated
Box 5   Folder 119
Public Broadcasting, 1946-1952 and undated
Box 5   Folder 120
Region 7, 1950-1957 and undated
Box 5   Folder 121
Region 8, 1981
Box 5   Folder 122
Region 9, 1943
Box 5   Folder 123
Relative Severity Rating Reports, 1969-1970
Box 5   Folder 124
Report on Development of National Fire Danger System, circa 1965
Box 5   Folder 125
Research and Studies -- Air Quality, circa 1975-1987
Box 5   Folder 126
Research and Studies -- Annual Reports, 1959-2004 and undated
Box 5   Folder 127
Research and Studies -- Fire Damage, Toccoa Experimental Forest, 1934-1943
Box 5   Folder 128
Research and Studies -- Fire Danger Meters, 1942-1960
Box 5   Folder 129
Research and Studies -- Fire Danger Rating, 1949 and 1958
Box 5   Folder 130
Research and Studies -- Fire Management, circa 1970, 1975, and undated
Box 5   Folder 131
Research and Studies -- Fire Physics, 1964-1973
Box 5   Folder 132
Research and Studies -- Fire Weather, 1977
Box 5   Folder 133
Research and Studies -- Forest Fire Control, 1943
Box 5   Folder 134
Research and Studies -- Forest Fire Research Uniform Projects, 1963
Box 5   Folder 135
Research and Studies -- Fuel Moisture, 1923-1958
Box 5   Folder 136
Research and Studies -- Prescribed Burning, 1958-1991
Box 5   Folder 137
Research and Studies -- Research Attainment Reports, 1978-1989 and undated
Box 5   Folder 138
Research and Studies -- Research Planning, 1935-1998 and undated
Box 5   Folder 139
Research and Studies -- Southern Fire Research, circa 1946-2004 and undated
Box 6   Folder 140
Southern Area Annual Fire Reports, 1984-1985
Box 6   Folder 141
Southern Area Annual Fire Reports, 1990, 1992-1993
Box 6   Folder 142
Southern Area Annual Fire Reports, 1994-1997
Box 6   Folder 143
Southern Forest Fire Laboratory, Macon, Georgia, 1959
Box 6   Folder 144
Specifications for Preliminary Unified Fire Danger System, 1959-1961
Box 6   Folder 145
Specifications for Preliminary Unified Fire Danger System, Region 1, 1960
Box 6   Folder 146
Specifications for Preliminary Unified Fire Danger System, Region 2, 3 and 4, 1960
Box 6   Folder 147
Specifications for Preliminary Unified Fire Danger System, Region 5 and 6, 1960, 1971, and undated
Box 6   Folder 148
Specifications for Preliminary Unified Fire Danger System, Regions 7, 8,and 9, 1960
Box 6   Folder 149
Speeches and Publications, 1958-1971
Box 6   Folder 150
Spread Index -- Data, 1962
Box 6   Folder 151
Spread Index Meter, 1966-1967 and undated
Box 6   Folder 152
Spread Phase Tables, 1962-1966 and undated
Box 6   Folder 153
Statistics, 1959-1998
Box 6   Folder 154
Statistics -- Region 10, 1969-1983
Box 6   Folder 155
Statistics -- Region 5, 1970-1976
Box 6   Folder 156
Statistics -- Region 8, circa 1947-2001 and undated
Box 6   Folder 157
Statistics -- Region 9, 1911
Box 6   Folder 158
Technical Notes, 1938-1942
Box 6   Folder 159
Temporary Directive No. 73, National Fire Danger Rating System, 1963
Box 6   Folder 160
Training Materials -- Region 1, 1958
Box 6   Folder 161
Training Materials -- Region 5, 1963
Box 6   Folder 162
Training Materials -- Region 6, 1957
Box 6   Folder 163
Training Materials -- Region 7, 1956 and undated
Box 6   Folder 164
Training Materials -- Region 7, National Forest Fire Training School, 1957
Box 6   Folder 165
Training Materials -- Region 8, 1957-1982 and undated
Box 6   Folder 166
Training Materials -- Region 8, Fire Behavior Training Course, 1959
Box 6   Folder 167
Unified Fire Danger Rating System -- Analysis, 1961-1963 and undated
Box 6   Folder 168-170
Unified Fire Danger System Development, Correspondence, 1957-1961
Box 7   Folder 171-172
Unified Fire Danger System Development, Correspondence, 1962-1964
Box 7   Folder 173
Unified Fire Danger System Development, Feedback from Regions, 1961-1963
Box 7   Folder 174
Unified Fire Danger System Development, Field Trial -- Correspondence, 1970-1971
Box 7   Folder 175
Unified Fire Danger System Development, Field Trials -- General Instructions, 1970-1971
Box 7   Folder 176
Unified Fire Danger System Development, Field Trials -- Working Tables, 1970-1971
Box 7   Folder 177
Unified Fire Danger System Development -- Memoranda and Station Responses, 1959-1960
Box 7   Folder 178
Unified Fire Danger System Development, Region 1, 1958 and undated
Box 7   Folder 179
Unified Fire Danger System Development, Region 1 -- Forms, 1955-1958 and undated
Box 7   Folder 180
Unified Fire Danger System Development, Region 1 -- John Keetch Notes, 1961 and undated
Box 7   Folder 181
Unified Fire Danger System Development, Region 1 -- Testing, 1959-1963
Box 7   Folder 182
Unified Fire Danger System Development, Region 2, 1940-1966
Box 7   Folder 183
Unified Fire Danger System Development, Region 3, 1953-1961 and undated
Box 7   Folder 184
Unified Fire Danger System Development, Region 4, 1960-1966
Box 7   Folder 185
Unified Fire Danger System Development, Region 5 -- Burning Index Revision, 1958
Box 7   Folder 186
Unified Fire Danger System Development, Region 5 -- Data, 1956-1961 and undated
Box 7   Folder 187
Unified Fire Danger System Development, Region 5 -- Fire Weather Stations, 1958 and undated
Box 7   Folder 188
Unified Fire Danger System Development, Region 5 -- General, 1954-1964 and undated
Box 7   Folder 189
Unified Fire Danger System Development, Region 5 -- Maps, 1944 and 1953
Box 7   Folder 190
Unified Fire Danger System Development, Region 6 -- Danger Meters, 1940 and 1950
Box 7   Folder 191
Unified Fire Danger System Development, Region 6 -- Forms, 1951, 19571 and 1958
Box 7   Folder 192
Unified Fire Danger System Development, Region 6 -- General, 1939-1963 and undated
Box 7   Folder 193
Unified Fire Danger System Development, Region 6 -- John Keetch Notes, 1958 and undated
Box 7   Folder 194
Unified Fire Danger System Development, Region 6 -- Maps, 1953 and 1964
Box 7   Folder 195
Unified Fire Danger System Development, Region 6 -- Oregon Climate Studies, 1959-1960
Box 7   Folder 196
Unified Fire Danger System Development, Region 6 -- Presuppression, 1956 and undated
Box 7   Folder 197
Unified Fire Danger System Development, Region 6 -- Research, 1931-1964
Box 7   Folder 198
Unified Fire Danger System Development, Region 7, 1955-1964 and undated
Box 7   Folder 199
Unified Fire Danger System Development, Region 9, 1951-1963 and undated
Box 7   Folder 200
Unified Fire Danger System Development, Regional Status Reports, 1958-1959
Box 7   Folder 201
Unified Fire Danger System Development, Special Fire Danger Advisory Session (November 8, 1960), 1960-1961
Box 7   Folder 202
Unified Fire Danger System Development, System Comparisons, circa 1961
Box 7   Folder 203
Unified Fire Danger System Development, Test Stations, General, 1961-1962
Box 7   Folder 204
Unified Fire Danger System Development, Test Stations, Regions 1-5, 1961
Box 7   Folder 205
Unified Fire Danger System Development, Test Stations, Regions 6 and 7, 1963-1971
Box 7   Folder 206
Unified Fire Danger System Development, Test Stations, Regions 9 and 10, 1961-1962
Box 7   Folder 207
Variables, 1934-1968 and undated

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The materials from our collections are made available for use in research, teaching, and private study, pursuant to U.S. Copyright law. The user must assume full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials. Any materials used for academic research or otherwise should be fully credited with the source.

Preferred Citation

[Identification of item],National Fire Danger Rating System Collection, Library and Archives, Forest History Society, Durham, NC, USA.

Processing Information

Processed by Jessie Henninger, November 2008

Encoded by Amanda Ross, November 2008

Funding from the National Historical Publications and Records Commission supported the encoding of this finding aid. Support for digitization and outreach provided by the Alvin J. Huss Endowment.