Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Tue Dec 30 2025
VAZ012-310900-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
701 PM EST Tue Dec 30 2025
Date 12/30/25 Wed 12/31/25 Thu 01/01/26 Fri
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 17 39 27 38 24
TEMP 20 20 20 21 30 38 38 31 30 30 29 28 33 37 36 29 27 27 27 29
DEWPT 8 8 8 9 12 14 15 18 19 22 23 21 21 18 17 19 21 23 24 25
MIN/MAX RH 61 35 79 43 90
RH 59 59 59 59 46 37 38 58 63 72 78 75 61 46 45 66 78 85 88 85
WIND DIR W W W W W W W W W W W W W W W W W W W W
WIND SPD 6 6 8 9 9 9 9 10 12 12 9 9 8 6 5 2 2 2 2 2
WIND GUST 19 17 19 21 24 23 20 21 25 25 21 21 20 18
CLOUDS FW SC SC SC SC FW FW FW FW SC B1 B2 B1 SC SC SC SC SC B1 B2
CLOUDS(%) 12 43 48 26 29 23 15 16 21 34 68 73 58 46 43 35 34 43 64 72
VSBY 10 10 10 10 10 10 10 10 8 8 10 10 10 10 10 10
POP 12HR 0 0 30 5 0
SNOW S C C
MIX HGT 1 1 1 1 2 3 3 <1 1 1 2 2 3 3 3 <1
T WIND DIR W W W W W W W W W W W NW NW NW W W
T WIND SPD 25 23 25 19 19 24 24 14 19 21 27 33 34 23 12 5
DISPERSION PR PR PR FR FR FR PR VP VP VP VP
ADI 11 10 11 32 47 73 75 7 9 24 31 68 81 70 38 3
MAX LVORI 2 2 2 1 1 1 1 3 3 3 3 3 1 1 1 3
STABILITY F F F C C C C F F D D D D C C G
CEILING None None None None None 1100 None None None
STA PRES 27.12 27.08 27.06 27.00 26.98 26.98 27.06 27.09
Date 01/02Sat 01/03/26Sun 01/04/26Mon 01/05/26Tue 01/06/26
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 49 32 49 25 50 30 52 31 48
TEMP 49 40 37 32 48 35 29 26 50 37 33 33 51 40 36 32 46 34
DEWPT 29 30 32 29 26 26 23 19 23 25 27 27 29 29 29 26 23 23
RH 46 67 82 88 42 69 78 74 34 61 78 78 42 64 75 78 40 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B1 B2 B1 SC FW FW SC SC SC B1 B1 B1 SC B1 SC
POP 12HR 0 20 20 5 0 5 5 20 10
RAIN 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