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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EST Tue Dec 2 2025
VAZ020-022100-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
431 AM EST Tue Dec 2 2025
Date Tue 12/02/25 Wed 12/03/25 Thu 12/04/25
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 22 42 26 41
TEMP 32 33 43 40 32 31 28 24 23 32 40 39 31 29 28 27 28 36 40 36 29
DEWPT 29 33 36 30 23 21 19 18 17 21 23 24 22 20 18 19 20 24 23 21 18
MAX/MIN RH 66 77 50 73 51
RH 88100 76 67 69 66 68 77 77 63 50 54 69 69 66 71 71 61 50 54 63
WIND DIR S W W NW NW NW NW NW W SW SW SW W W W W W W W NW NW
WIND SPD 2 2 2 3 4 3 2 2 2 2 2 2 2 2 2 3 3 3 4 3 3
WIND GUST 16 13
CLOUDS OV OV SC SC SC SC FW FW CL CL CL CL FW FW FW SC SC B1 B1 B1 SC
CLOUDS(%) 98 92 45 32 38 26 21 12 3 5 5 4 6 14 22 28 39 54 59 54 50
VSBY 1 1 8 4 2 1 2 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 0 0 0 0
FRZG RAIN D
RAIN L
SLEET
SNOW
MIX HGT <1 <1 2 2 <1 2 1 1 <1 1 2 1 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR SE W NW NW NW NW NW NW NW W SW W SW W W W W W NW NW NW
T WIND SPD 2 1 16 24 18 23 17 8 6 4 5 6 4 3 3 5 6 20 26 21 10
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 2 1 34 58 8 10 8 4 7 6 12 9 2 2 2 3 7 53 63 57 5
MAX LVORI 7 6 3 1 3 3 3 4 4 3 2 2 3 3 3 3 3 1 1 1 3
STABILITY C C B B F G G G B B B B G G G G B C D B F
CEILING 300 None None None None None None None None None
STA PRES 27.58 27.54 27.68 27.75 27.82 27.81 27.85 27.82 27.86 27.90
Date Fri 12/05/25Sat 12/06/25Sun 12/07/25Mon 12/08/25
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 22 34 29 44 28 42 27 37
TEMP 24 24 33 30 31 31 43 34 32 29 41 32 31 28 36 29
DEWPT 15 16 20 20 22 25 31 24 23 23 24 23 23 22 22 20
RH 68 71 58 66 69 78 62 66 69 78 50 69 72 78 56 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1
POP 12HR 5 20 20 20 10 10 20 10
FRZG RAIN S S
RAIN S
SNOW S S S 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
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