zx-17 - TABLE 3A: REFERENCE FUEL MOISTURE (DAYTIME 0800 -...

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Unformatted text preview: TABLE 3A: REFERENCE FUEL MOISTURE (DAYTIME 0800 - 1959) Relative Humidity {Percent} 11 12 12 10 11 12 10 11 12 10 10 11 10 10 11 10 10 ll GO TO TABLES 3B - 3D FOR CORRECTION VALUES TABLE 3B: DEAD FUEL MOISTURE CONTENT CORRECTION VALUES DAYTIME 0800 - 1959 (MAY, JUNE, JULY) I Aspect/Time 0800» 1000—,- 1200 —P- 1400* 1600—.- 1800—"- CLEAR AND/OR N0 CANOPY (LESS THAN 50% SHADED) TABLE 30: DEAD FUEL MOISTURE CONTENT CORRECTION VALUES DAYTIME 0800 - 1959 (Fe-2b., March, April, Aug., Sept., and Oct.) Aspect/Time 0800 --—I- 1000 —--I- 1000 -——I- 1600 --—I- 1800 CLEAR AND/OR N0 CANOPY (LESS THAN 50% SHADED) TABLE 3D: DEAD FUEL Mom CONTENT CORRECTION VALUES DAYTIME O 8 0 0 - l 9 5 9 (NOVEMBER , DECEMBER , JANUARY) TABLE 3E: DEAD FUEL MOISTURE CONTENT (NIGH'I'I'IME 2000 - 0759)“ Relative Humidity (Percent) 12 14 15 12 13 14 11 12 14 11 12 13 15 17 20 10 11 13 14 16 19 10 11 12 14 16 19 * No corrections are needed during this time period. TABLE3F:LHHBFUEL(FDL1AGE)lflIEflIHuflCONTENT s3 MOISTURE CONTENT STAGE OF VEGETATIVE DEVELOPMENT (Percent) 300 Fresh foliage, annuals developing, early in the growing cycle 200 Maturing foliage, annuals developing with full turgor Maturing foliage midway in development cycle Foliage nearing maturity, new growth nearly com- plete ' Mature foliage, new growth complete and compar- able to older perennial foliage 150 120 Entering dormancy, coloration starting, some leaves-may have dropped from stems 41 TABIE 3G: MOISTURE 0F EXTINCTION FOR EACH FUEL MODEL Moisture of Extinction (Percent) Presence of Fuel Class Fuel Model . 1—H lD-H lOO—H Live I!" N 1 Short Grass H U1 2 Timber and Grass to U1 3 Tall Grass N O 4 Chaparral (6 ft.) M O 5 Brush (2 ft.) 6 Intermediate Brush 7 Southern Rough L» O 8 Closed Timber Litter M U1 9 Hardwood Litter 10 Timber with Litter H L" 11 Light Logging Slash N 0 U1 12 Medium Logging Slash 13 Heavy Logging Slash N U! 42 ...
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zx-17 - TABLE 3A: REFERENCE FUEL MOISTURE (DAYTIME 0800 -...

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