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Dyersburg NFDRS SITE Point Forecast Matrix
TNZ019-261000-
DYERSBURG RAWS NFDRS SITE-DYERSBURG TN
35.99N 89.41W ELEV. 208 FT
317 PM CDT THU SEP 25 2008
DATE 09/25/08 FRI 09/26/08 SAT 09/27/08 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 50 84 50 83 54
TEMP 84 81 71 65 57 51 73 81 83 80 68 63 56 51 66 77 82 74 63 60 58 55
DEWPT 40 42 48 48 46 45 46 43 41 42 47 46 45 46 52 51 50 51 51 50 50 49
MAX/MIN RH 79 23 83 33 80
RH 21 25 45 54 67 79 39 27 23 27 47 54 67 83 60 41 33 45 63 70 74 80
WIND DIR NE NE N N N N NE NE N N N N N N N N N N N N N NE
WIND SPD 9 6 2 2 2 2 9 11 11 5 2 2 2 2 6 11 10 5 2 2 1 2
HEAT INDEX 80
CLOUDS FW CL CL CL CL FW FW SC SC FW FW FW FW SC SC SC SC SC SC FW FW SC
CLOUDS(%) 15 4 4 4 4 15 15 26 26 20 20 20 20 40 40 40 40 30 30 15 15 35
POP 12HR 0 0 0 0 5
QPF 12HR 0 0 0 0 0
MIXHGT M AGL 0 0 1804 2226 0 0 1894 2123 0 0
MIXHGT FT AGL 0 0 5918 7303 0 0 6213 6964 0 0
MIXHGT M MSL 33 29 1894 2318 39 36 1984 2213 45 47
MIXHGT FT MSL 107 96 6213 7606 127 117 6508 7262 146 153
TRANSWIND DIR N N NE NE N NW N N N N
TWIND SPD MS 3 3 7 6 2 2 7 5 2 1
TWIND SPD MPH 6 6 17 13 5 5 16 12 4 2
VENT INDEX 177 16226 183 13278 152
CATEGORY DAY 1 5 1 4 1
500M MIXHGT T 82 77 75 81 79 77 78 82 79 77
500M TWND DIR NE NE NE NE NE N N N N NE
500M TWND M/S 10 9 7 7 8 6 7 6 6 3
500M TWND MPH 23 20 16 16 18 14 16 13 14 6
DISPERSION 3 6 55 54 3 5 50 48 3 2
LASI 6 5 5 6 5 5 5 5 5 5
STABILITY C F E C C F E C C F
STAG INDEX 0 2 2 2 3
DATE 09/28 MON 09/29/08 TUE 09/30/08 WED 10/01/08 THU 10/02/08
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 85 57 84 60 79 56 74 52 74
TEMP 79 76 63 58 79 76 65 61 77 73 62 57 72 71 61 53 72 71
DEWPT 52 56 54 53 55 57 56 55 56 57 55 53 53 52 50 48 50 52
MIN/MAX RH 36 83 40 81 47 88 48 84 45
RH 39 50 75 83 44 52 74 81 48 57 78 87 50 51 67 84 45 51
WIND DIR N N N NE N N N NE N
WIND SPD 4 2 3 2 3 3 4 4 6
AVG CLOUDS SC SC SC SC B1 B1 SC SC B1 B1 SC SC B1 B1 FW FW SC SC
POP 12HR 5 10 10 10 20 10 10 10 10
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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