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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EST Thu Dec 4 2025
VAZ012-042100-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
701 AM EST Thu Dec 4 2025
Date Thu 12/04/25 Fri 12/05/25 Sat 12/06/25
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 43 25 35 30 44
TEMP 38 41 39 30 28 28 27 28 31 33 35 33 32 31 31 32 40 42 43 34
DEWPT 23 22 21 22 23 24 24 25 28 29 29 30 30 30 30 31 34 33 31 30
MAX/MIN RH 43 94 72 99 63
RH 54 46 48 72 81 85 88 88 88 85 78 89 92 96 96 96 79 70 62 85
WIND DIR W NW NW N E SE SE SE SE S S S SW SW W W W W W W
WIND SPD 2 3 2 1 2 2 2 3 2 2 1 1 1 2 2 2 2 3 2 1
CLOUDS SC B1 B2 B2 B2 OV OV OV OV OV OV B2 OV OV B2 B2 B2 B1 B1 B1
CLOUDS(%) 50 62 79 84 84 97 91 94 92 93 88 86 89 91 85 83 78 68 60 51
VSBY 10 10 10 10 7 3 2 2 3 5 5 5 3 2 3 4 4 10 10 10
POP 12HR 0 100 80 10 10
SNOW L D D L S
MIX HGT 1 2 2 <1 <1 <1 <1 1 <1 1 <1 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR W NW NW NE E SE SE SE SE S W W W W W W W W W W
T WIND SPD 9 12 8 3 5 9 11 13 8 3 3 2 6 8 8 9 9 9 10 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 17 33 17 2 3 4 5 20 9 4 3 1 3 4 4 7 16 25 25 5
MAX LVORI 2 1 2 3 4 5 5 4 4 4 3 6 6 9 8 6 4 3 2 5
STABILITY B C C F F F F C C C C F F F F C C C C F
CEILING None 10000 5400 100 500 1000 700 600 600 600
STA PRES 27.33 27.31 27.30 27.23 27.20 27.12 27.12 27.09 27.09 27.08
Date Sun 12/07/25Mon 12/08/25Tue 12/09/25Wed 12/10/25
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 26 44 27 36 19 41 27 45
TEMP 28 27 43 36 31 28 34 27 22 22 39 31 28 29 43 37
DEWPT 27 24 32 31 28 25 24 21 18 17 23 22 23 24 27 27
RH 96 88 65 82 88 88 66 78 84 81 52 69 81 81 53 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B2 B2 B2 B2 B2 B1 SC B1 B1 SC B1 B1 B1 B1
POP 12HR 10 30 30 30 10 10 10 20
RAIN C C C S
SNOW C C
$$
This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.
Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)
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 humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
TYPE...
RAIN...........Rain
RAIN SHWRS.....Rain showers
TSTMS..........Thunderstorms
DRIZZLE........Drizzle
SNOW...........Snow
SNOWSHWRS......Snow showers
SLEET..........Sleet
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
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure
Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions