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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EST Mon Dec 29 2025
VAZ024-300900-
RAWS 441631
37.63N 79.51W Elev. 865 ft
301 PM EST Mon Dec 29 2025
Date 12/29/25 Tue 12/30/25 Wed 12/31/25 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 24 36 25 45 30
TEMP 35 30 27 26 26 24 30 35 35 29 27 26 26 26 34 43 45 40 36 35 33 31
DEWPT 16 13 12 11 10 10 9 8 8 8 7 8 11 13 17 20 21 22 22 23 22 21
MIN/MAX RH 54 32 56 37 67
RH 45 49 53 52 50 54 41 32 32 40 42 46 52 57 49 39 38 48 56 61 63 66
WIND DIR W W W W W W W W W W W W W W W W W W W W W W
WIND SPD 14 11 12 12 11 14 13 14 9 5 4 4 5 5 8 9 9 5 5 5 5 5
WIND GUST 35 36 35 34 33 29 27 23 21 20 18 19 19 21 23 23 21 21 21 20 18
CLOUDS SC FW FW CL CL CL CL CL FW FW SC SC SC SC SC SC SC B1 B1 SC SC SC
CLOUDS(%) 50 7 6 5 5 5 4 5 8 19 36 37 36 29 36 44 50 53 58 39 42 43
VSBY 10 10 10 10 10 10 7 10 9 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 10
MIX HGT 5 3 3 3 1 3 4 4 4 1 2 2 2 2 4 5 5 2
T WIND DIR W W NW NW NW NW NW NW W W W W W W W W W W
T WIND SPD 41 34 34 34 31 27 27 21 20 14 14 17 11 11 21 24 21 13
DISPERSION FR FR FR FR PR VP VP PR PR PR PR PR
ADI 129 23 46 46 21 61 74 63 78 7 7 8 5 26 78 98 87 9
MAX LVORI 1 2 1 1 2 1 1 1 1 2 2 2 2 2 1 1 1 2
STABILITY D E D D E D D D C F F F F C C C C E
CEILING None None None None None None None None None
STA PRES 28.35 28.37 28.44 28.43 28.44 28.38 28.32 28.27
Date 01/01Fri 01/02/26Sat 01/03/26Sun 01/04/26Mon 01/05/26
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 43 25 51 33 50 28 48 29 52
TEMP 42 32 27 26 48 43 35 34 49 42 31 28 47 37 31 29 50 44
DEWPT 16 16 17 20 24 27 28 29 31 29 26 24 23 23 23 23 28 30
RH 34 51 65 78 39 53 75 82 50 60 81 85 38 56 72 78 42 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW SC SC B1 B2 B2 B2 B1 SC SC SC B1 B1 B1 B1 SC
POP 12HR 5 0 0 20 40 10 0 5 10
RAIN S 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