National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EST Thu Dec 4 2025

VAZ018-042100-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
901 AM EST Thu Dec 4 2025

Date             Thu 12/04/25            Fri 12/05/25            Sat 12/06/25
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                 41          25          31          29          46
TEMP                35 41 38 31 30 30 28 26 27 30 31 30 30 30 31 33 39 44 43 36
DEWPT               23 23 26 23 21 21 22 22 24 26 27 25 25 26 27 29 33 34 34 30
MAX/MIN RH                   48          87          74          87          67
RH                  61 48 62 72 69 69 78 85 88 85 85 81 81 85 85 85 79 68 70 79
WIND DIR            NW NW NW NW  N SE SE SE SE SE SE SE SW  W  W  W  W  W  W  W
WIND SPD             6  6  5  2  2  2  2  3  3  2  2  1  1  1  2  2  3  4  3  2
WIND GUST           20 20 17          13 14                            14      
CLOUDS              SC B1 B2 B2 B2 OV OV OV B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B1 SC
CLOUDS(%)           35 64 72 72 80 97 96 94 86 88 85 74 83 80 77 70 61 58 55 50
VSBY                10 10 10 10  9  3  2  2  3  4  5  5  3  4  4  3  4 10 10 10
POP 12HR                      0          80          80           5           5
FRZG DRZL                                          C                           
SNOW                                C  L  D  L  S                              
MIX HGT              1  2  2 <1 <1 <1  1  1  1  1 <1 <1 <1 <1 <1 <1  1  2  2 <1
T WIND DIR          NW NW NW NW NE  E SE SE SE  S  N  N NW  W  W  W  W  W  W  W
T WIND SPD          12 16 12  5  3  9 12 14  9  4  0  1  1  3  4  4  5 10 11 10
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 20 30 22  3  2  4  6 21 13  6  0  1  1  2  2  4 10 20 30  5
MAX LVORI            2  1  2  3  3  3  4  3  4  4  4  6  6  5  6  5  4  3  3  4
STABILITY            C  D  D  F  F  F  F  C  C  C  C  F  F  F  F  C  C  D  C  F
CEILING                    5300 10700  1800  1200  1800  2100   800   600  None
STA PRES                  27.88 27.89 27.84 27.80 27.69 27.67 27.65 27.65 27.61


Date          Sun 12/07/25Mon 12/08/25Tue 12/09/25Wed 12/10/25
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       30      45      30      37      20      41      30      46
TEMP          32 30 43 36 34 31 36 28 22 22 39 32 31 32 45 39
DEWPT         27 25 33 31 29 26 25 18 14 14 23 23 24 25 31 29
RH            81 81 67 82 82 81 64 66 71 71 52 69 75 75 58 67
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B2 B2 B2 B1 SC SC SC SC SC B1 B1 B1 B1
POP 12HR           10      20      30      30      10      10      10      20
RAIN                    S  S  C  C                          S
SNOW                          C  C                           

$$


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