Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
242 AM EST Tue Dec 30 2025
VAZ046-310900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
242 AM EST Tue Dec 30 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 23 37 24 46 28
TEMP 25 24 30 36 37 30 28 27 25 24 32 42 46 40 36 34 31 31
DEWPT 10 10 10 8 8 8 8 8 10 11 14 16 17 19 20 21 22 22
MIN/MAX RH 55 30 55 30 71
RH 52 54 42 30 29 39 42 44 52 57 47 34 31 42 52 58 69 69
WIND DIR W W W W W W W W SW SW SW SW SW SW SW SW SW W
WIND SPD 9 10 11 11 10 6 6 6 8 6 10 11 10 8 6 8 6 5
WIND GUST 23 23 23 21 21 18 17 17 18 18 21 23 21 18 19 19 20 18
CLOUDS CL CL FW CL FW FW B1 B1 FW FW SC SC B1 SC SC FW SC SC
CLOUDS(%) 3 3 6 2 7 9 69 69 21 23 31 39 53 43 34 24 26 27
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 0 0
MIX HGT <1 <1 4 4 4 <1 1 <1 <1 <1 3 5 4 1 <1 <1 <1 <1
T WIND DIR NW NW NW W W W W W W SW W W SW SW W W W W
T WIND SPD 24 23 21 19 19 11 20 19 8 12 20 21 16 13 16 13 17 10
DISPERSION PR PR PR PR PR PR PR PR PR
ADI 16 18 59 57 74 5 14 13 5 13 69 64 46 12 7 9 8 8
MAX LVORI 2 2 1 1 1 2 2 2 2 2 1 1 1 2 2 2 3 3
STABILITY E C D D C F E E E C C D D D F E F C
CEILING None None 13800 None None None None None
STA PRES 29.32 29.29 29.30 29.24 29.18 29.06 29.06 29.12
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 45 23 49 34 47 27 46 30 53
TEMP 42 34 27 24 43 43 40 36 44 39 34 30 42 39 35 33 47 45
DEWPT 15 13 14 16 25 28 29 30 29 28 24 20 22 23 23 26 31 32
RH 33 41 57 71 49 55 64 79 55 64 66 66 44 52 61 75 53 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW B1 B2 B2 B2 B2 B1 B1 FW SC SC SC B1 B2 B1
POP 12HR 0 0 0 10 30 5 0 0 5
RAIN 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