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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EST Wed Dec 10 2025
VAZ020-102100-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
701 AM EST Wed Dec 10 2025
Date Wed 12/10/25 Thu 12/11/25 Fri 12/12/25
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 45 25 30 22 32
TEMP 36 42 41 35 33 31 27 25 27 29 27 24 23 22 23 23 27 30 31 29
DEWPT 25 29 31 30 25 22 17 15 14 14 14 14 13 14 15 17 20 23 25 25
MAX/MIN RH 57 82 53 78 69
RH 64 60 67 82 72 69 65 65 57 53 57 65 65 71 71 77 74 75 78 85
WIND DIR SW SW SW W W NW NW NW NW W W W W W W SW SW SW SW SW
WIND SPD 5 5 6 8 10 10 10 10 9 8 6 6 5 5 4 4 3 4 4 4
WIND GUST 16 18 18 23 24 23 24 20 19
CLOUDS B2 B2 B2 B1 SC FW SC SC FW FW FW SC SC B1 B2 B2 OV OV B2 B2
CLOUDS(%) 82 80 85 56 29 24 36 26 17 25 25 31 39 59 78 80 89 88 84 78
VSBY 8 7 4 3 4 3 10 10 2 3 3 10 10 10 10 10 10 10
POP 12HR 60 30 5 10 40
RAIN L C C
SNOW C
SNOWSHWRS SC SC SC SC IS
MIX HGT <1 2 2 <1 <1 1 2 1 3 3 2 <1 <1 <1 <1 <1 1 2 1 <1
T WIND DIR SW SW SW W W NW NW NW NW NW W W W W W SW SW W SW SW
T WIND SPD 10 19 17 16 18 16 33 36 34 29 25 11 8 8 5 6 8 14 6 5
DISPERSION PR FR FR FR PR PR PR VP VP
ADI 13 36 29 14 12 11 22 49101 95 72 5 4 5 4 8 13 28 10 4
MAX LVORI 2 1 3 4 3 3 3 1 1 1 1 3 3 3 3 4 4 3 4 5
STABILITY D D D D E E E C C C C F F E E D C D D E
CEILING 5200 3900 None None None None None 3200 700 600
STA PRES 27.43 27.32 27.38 27.48 27.64 27.70 27.74 27.71 27.67 27.65
Date Sat 12/13/25Sun 12/14/25Mon 12/15/25Tue 12/16/25
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 27 36 22 27 9 29 16 39
TEMP 30 28 35 29 28 26 25 16 12 10 27 21 20 21 37 31
DEWPT 26 25 25 25 25 23 9 4 -2 0 3 8 7 9 16 18
RH 85 88 66 85 88 88 50 58 52 63 35 56 56 59 42 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 B1 B1 B1 B2 SC SC SC FW FW SC SC SC SC SC
POP 12HR 20 0 20 10 5 5 5 5
SNOWSHWRS IS IS
$$
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