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Chickasaw State Forest Fire Weather Point Forecast Matrix
TNZ053-151000-
CHICKASAW STATE FOREST NFDRS SITE-CHESTER TN
35.37N 88.83W ELEV. 496 FT
256 PM CDT THU MAY 14 2009
DATE 05/14/09 FRI 05/15/09 SAT 05/16/09 SUN
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX 65 85 68 82 58
TEMP 80 78 73 70 68 66 76 81 84 82 74 72 70 69 78 82 81 76 71 67 62 59
DEWPT 69 69 69 69 68 66 68 68 68 67 67 67 67 67 68 68 67 65 61 57 56 55
MAX/MIN RH 100 58 96 62 89
RH 68 73 89 96100100 78 66 58 62 80 87 93 96 71 64 62 69 72 71 81 88
WIND DIR SW N E E SE SE S S S S S S S S SW W NW NW N N N N
WIND SPD 4 2 2 2 2 3 5 8 6 5 4 3 4 4 4 4 3 2 6 12 11 10
HEAT INDEX 83 84 87 85 84 84
CLOUDS B1 SC SC B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 OV OV OV OV B2
CLOUDS(%) 65 50 50 70 70 70 65 65 65 60 60 60 60 65 65 75 75 90 90 90 90 75
POP 12HR 10 40 10 80 70
QPF 12HR 0 0.16 0 0.53 0.23
RAIN SHWRS SC SC SC SC SC NM NM NM NM NM NM NM NM IS
TSTMS SC SC SC SC SC NM NM NM NM NM NM NM NM IS
MIXHGT M AGL 818 0 1369 789 572 0 1635 1202 475 427
MIXHGT FT AGL 2683 0 4491 2588 1875 0 5363 3945 1559 1399
MIXHGT M MSL 972 113 1511 935 715 124 1786 1351 612 562
MIXHGT FT MSL 3188 370 4956 3066 2344 405 5858 4433 2007 1843
TRANSWIND DIR SE SE SW S S S W N N NE
TWIND SPD MS 3 2 5 5 4 2 3 5 9 10
TWIND SPD MPH 6 4 12 12 10 5 8 11 21 24
VENT INDEX 2602 7555 3456 7144 6120
CATEGORY DAY 2 4 2 3 3
500M MIXHGT T 79 80 79 77 78 79 79 76 68 57
500M TWND DIR SE S SW S S SW W N NE NE
500M TWND M/S 4 5 5 6 8 10 4 7 11 12
500M TWND MPH 9 12 12 13 19 23 9 16 25 27
DISPERSION 4 5 38 32 7 6 28 23 30 41
LASI 4 3 3 3 4 3 3 3 2 2
STABILITY C F D B C F D B C D
STAG INDEX 1 0 0 0 0
DATE 05/17 MON 05/18/09 TUE 05/19/09 WED 05/20/09 THU 05/21/09
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN 72 48 75 50 79 58 84 63 86
TEMP 72 70 58 49 71 72 57 51 72 76 61 59 79 80 67 64 82 82
DEWPT 52 48 46 47 47 48 49 50 52 55 57 57 57 57 57 60 62 63
MIN/MAX RH 46 91 38 98 42 93 41 87 46
RH 50 46 64 91 41 42 76 98 49 48 85 93 47 46 71 87 51 52
WIND DIR N NE NE NE NE E NE E NE
WIND SPD 10 7 7 3 3 4 3 4 5
BELOW IS A WEATHER ELEMENT KEY FOR THIS PRODUCT
DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP (F)....MAXIMUM/MINIMUM AIR TEMPERATURE
TEMP (F)............................AIR TEMPERATURE
DEWPT (F)...........................DEW POINT TEMPERATURE
MIN/MAX RH OR MAX/MIN RH (%)........MAXIMUM/MINIMUM HUMIDITY
RH (%)..............................RELATIVE HUMIDITY
WIND DIR (8 POINT COMPASS)..........20 FT. WIND DIRECTION
WIND SPD (MPH)......................20 FT. WIND SPEED
WIND CHILL (F)......................WIND CHILL TEMPERATURE
HEAT INDEX (F)......................HEAT INDEX
CLOUDS (CAT)........................CLOUD COVER CATEGORY
EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS (%)..........................CLOUD COVER AS A PERCENTAGE
POP 12HR (%)........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR (IN).......................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
TYPE...
RAIN...........RAIN
RAIN SHWRS.....RAIN SHOWERS
TSTMS..........THUNDERSTORMS
DRIZZLE........DRIZZLE
SNOW...........SNOW
SNOWSHWRS......SNOW SHOWERS
SLEET..........SLEET
FLURRIES.......FLURRIES
FRZG RAIN......FREEZING RAIN
FRZG DRZL......FREEZING DRIZZLE
COVERAGE...
IS.............ISOLATED
SC.............SCATTERED
NM.............NUMEROUS
O..............OCCASIONAL
S..............SLIGHT CHANCE
C..............CHANCE
L..............LIKELY
WD.............WIDESPREAD
D..............DEFINITE
AR.............AREAS
PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
TYPE...
F..............FOG
PF.............PATCHY FOG
+PF............PATCHY DENSE FOG
F+.............DENSE FOG
H..............HAZE
BS.............BLOWING SNOW
K..............SMOKE
BD.............BLOWING DUST
MIXING HGT M (AGL)..................MIXING HEIGHT IN METERS
MIXING HGT FT (AGL).................MIXING HEIGHT IN FEET
TRANSWIND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION
TWIND SPD MS (M/S)..................TRANSPORT WIND SPEED IN METERS PER SECOND
TWIND SPD MPH (MPH).................TRANSPORT WIND SPEED IN MILES PER HOUR
VENT INDEX (M2/S)...................VENT INDEX IN METERS SQUARED PER SECOND
CATEGORY DAY........................CATEGORY DAY BASED ON VENT INDEX
EXAMPLE: 1 = <2000; 2 = >=2000 AND <4000; 3 = >=4000 AND <8000;
4 = >=8000 AND <16000; 5 = >=16000
500M MIXHGT T (F)...................SURFACE TEMPERATURE NEEDED TO CREATE MIXING
UP TO 500 METERS ABOVE THE GROUND
500M TWND DIR (8 POINT COMPASS).....TRANSPORT WIND DIRECTION AT 500 METERS AGL
500M TWND M/S.......................TRANSPORT WIND AT 500 METERS AGL IN M/S
500M TWND MPH.......................TRANSPORT WIND AT 500 METERS AGL IN MPH
LASI (SAME AS HAINES INDEX).........LOWER ATMOSPHERIC SEVERITY INDEX
MEASURES FIRE GROWTH POTENTIAL
EXAMPLE: 1-3 = VERY LOW; 4 = LOW; 5 = MODERATE; 6 = HIGH
STABILITY...........................STABILITY CLASS
EXAMPLE: A = VERY UNSTABLE; B = MODERATELY UNSTABLE; C = SLIGHTLY UNSTABLE
D = NEUTRAL; E = SLIGHTLY STABLE; F = MODERATELY STABLE
G = VERY STABLE
STAG INDEX..........................STAGNATION INDEX
EXAMPLE: 0 = WINDS >= 10 MPH; 1 = WINDS <= 10 MPH WITH RAIN
2 = DRY WITH DECENT WINDS
3 = DRY WITH LIGHT WINDS AND STAGNATE CONDITIONS
WATCH/WARNING/ADVISORY...
EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
IN EFFECT FOR THE INDICATED HOUR
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