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Chickasaw State Forest Fire Weather Point Forecast Matrix
TNZ053-091000-
CHICKASAW STATE FOREST NFDRS SITE-CHESTER TN
35.37N 88.83W ELEV. 496 FT
300 PM CST SUN NOV 8 2009
DATE 11/08/09 MON 11/09/09 TUE 11/10/09 WED
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
CST 3HRLY 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06
MIN/MAX 51 71 52 67 45
TEMP 74 70 61 58 55 52 59 67 70 67 61 58 55 53 59 66 66 61 58 55 51 46
DEWPT 47 51 51 51 51 51 53 55 54 54 53 53 52 52 51 51 50 50 49 47 43 40
MAX/MIN RH 97 56 96 56 80
RH 39 52 70 79 87 97 80 64 57 62 76 82 89 96 74 58 56 66 71 74 75 80
WIND DIR SE SE SE SE SE E E E E NE E E NE NE NE NE N N N N N N
WIND SPD 4 3 4 4 4 4 6 8 8 8 9 10 10 9 11 12 11 10 9 10 10 10
CLOUDS SC SC SC SC B1 B2 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 SC SC SC SC FW
CLOUDS(%) 32 38 43 47 54 76 76 76 76 94 94 94 94 83 83 83 83 30 30 30 30 10
POP 12HR 0 10 30 20 10
QPF 12HR 0 0 0.07 0.03 0
RAIN C C C C S S S S
MIXHGT M AGL 142 0 293 571 126 336 484 581 571 454
MIXHGT FT AGL 464 0 961 1872 414 1102 1587 1906 1873 1489
MIXHGT M MSL 284 74 430 706 278 481 618 715 705 589
MIXHGT FT MSL 933 242 1412 2316 911 1578 2027 2345 2313 1932
TRANSWIND DIR SE SE SE SE SE E NE NE NE N
TWIND SPD MS 4 3 5 3 6 6 11 11 11 11
TWIND SPD MPH 9 6 11 8 14 13 26 26 25 26
VENT INDEX 1516 2824 2484 6996 8580
CATEGORY DAY 1 2 2 3 4
500M MIXHGT T 72 71 71 69 69 63 60 60 57 54
500M TWND DIR SE S SE SE SE E NE NE NE N
500M TWND M/S 7 9 8 5 10 6 13 14 13 15
500M TWND MPH 16 20 19 11 24 14 29 32 29 34
DISPERSION 9 6 16 16 15 33 58 56 44 49
LASI 4 4 4 5 3 3 2 3 2 2
STABILITY C E E C C D D C C E
STAG INDEX 0 0 0 0 0
DATE 11/11/09 THU 11/12/09 FRI 11/13/09 SAT 11/14/09 SUN 11/15/09
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
CST 6HRLY 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18
MAX/MIN 63 41 66 44 71 50 71 49 68
TEMP 62 56 48 42 62 58 48 45 66 63 56 51 66 64 58 50 65 64
DEWPT 39 37 37 40 41 43 43 45 47 51 51 51 57 57 54 50 53 51
MIN/MAX RH 40 93 42 100 45 100 62 100 56
RH 43 49 66 93 46 57 80 99 50 63 81 100 71 75 86 100 64 62
WIND DIR N N N NE SE S S S S
WIND SPD 9 4 4 3 3 5 8 8 10
AVG CLOUDS FW FW CL CL CL CL FW FW FW FW SC SC B1 B1 B1 B1 B2 B2
POP 12HR 0 0 0 0 5 10 10 20 30
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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