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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EST Mon Dec 8 2025
VAZ018-090900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
901 PM EST Mon Dec 8 2025
Date 12/08/25 Tue 12/09/25 Wed 12/10/25 Thu
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 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 TEMP 15 38 28 49 29
TEMP 25 21 19 16 26 35 36 29 29 30 34 36 43 48 46 40 38 35 32 30
DEWPT 18 16 14 13 19 24 26 24 22 23 25 26 30 34 35 33 30 26 24 22
MIN/MAX RH 94 62 81 57 76
RH 74 81 80 88 74 64 67 81 75 75 69 67 60 58 65 76 73 69 72 72
WIND DIR E S SW SW S S S SW SW SW SW SW SW SW W W W W W NW
WIND SPD 4 3 3 4 2 4 3 3 4 4 5 6 8 9 9 10 12 12 11 10
WIND GUST 13 18 18 24 28 28 27 28 33 37 37 36 33
CLOUDS B2 B1 B2 B2 B1 B1 B1 SC B1 B1 B1 B2 B1 B2 B1 B1 B2 B1 B1 B1
CLOUDS(%) 79 69 70 78 63 57 61 42 55 64 66 70 67 75 65 64 76 66 61 56
VSBY 7 7 7 8 9 9 9 10 10 10 10 10 9 9 9 9
POP 12HR 10 0 0 30 40
FLURRIES
RAIN C C C
SNOW C S S
MIX HGT <1 <1 <1 <1 1 2 <1 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NE W W W SW SW SW S SW SW SW SW W W W W
T WIND SPD 5 1 1 1 5 10 12 5 6 6 9 11 29 35 20 11
DISPERSION VP VP VP VP VP VP PR FR FR FR FR
ADI 3 1 1 1 8 18 16 3 5 5 6 13 57 87 42 10
MAX LVORI 5 6 6 6 4 2 3 5 4 3 3 3 1 1 1 4
STABILITY F F F B B D B G E E E D D D D D
CEILING 800 1400 None None 9200 8200 2700 1100
STA PRES 27.86 27.83 27.70 27.65 27.53 27.42 27.39
Date 12/11Fri 12/12/25Sat 12/13/25Sun 12/14/25Mon 12/15/25
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 36 25 40 25 36 20 36 17 39
TEMP 36 29 28 27 39 32 31 26 35 27 24 21 35 25 20 18 35 29
DEWPT 24 21 20 20 26 25 25 21 22 18 16 15 19 15 12 11 19 19
RH 61 72 71 74 59 75 78 81 59 68 71 77 52 65 71 73 52 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC FW SC SC B1
POP 12HR 10 30 30 30 10 10 10 5 5
SNOW S C C C C S
$$
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