National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Aug 31 2026

VAZ018-010800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
801 PM EDT Mon Aug 31 2026

Date           08/31/26      Tue 09/01/26            Wed 09/02/26            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
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08

MIN/MAX TEMP                 68          91          70          93          71
TEMP                73 71 69 71 84 89 89 80 76 73 71 73 86 92 90 81 76 74 72 73
DEWPT               66 65 64 65 68 67 67 66 66 66 65 67 69 68 67 68 66 66 66 67
MIN/MAX RH                   86          46          84          45          84
RH                  79 81 84 81 59 48 48 62 71 79 81 81 57 46 47 65 71 76 81 81
WIND DIR            NW  W  W NW NW NW NW NW NW  W  W NW NW NW  W  W  W  W  W  W
WIND SPD             1  1  2  3  4  4  4  2  2  2  2  2  1  2  2  2  2  2  2  3
WIND GUST                       14                                             
CLOUDS              SC FW FW FW FW FW FW FW CL FW CL CL CL FW FW FW FW FW CL CL
CLOUDS(%)           30 16 20 18 11 18 14  9  1 13  4  4  5 12 15 13 13  8  4  5
VSBY                10  8  7  4 10 10 10 10  9  8  8  6 10 10 10 10            
POP 12HR                      0           5           0          10           0
MIX HGT             <1 <1 <1 <1  4  6  5 <1 <1 <1 <1 <1  4  7  6 <1            
T WIND DIR           W  W  W  W NW NW NW  W  W  W  W NW NW  W  W  W            
T WIND SPD           2  3  3  4 16 11  8  3  4  3  4  5 13 10  8  3            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  2  2  4 80 81 54  2  2  2  2  6 72 82 61  2            
MAX LVORI            4  5  5  5  1  1  1  3  3  4  5  4  1  1  1  3            
STABILITY            G  G  G  A  A  A  A  G  G  G  G  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.91 27.91 27.94 27.88 27.90 27.90 27.92 27.87            


Date           09/03Fri 09/04/26Sat 09/05/26Sun 09/06/26Mon 09/07/26
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MAX/MIN TEMP       92      71      92      68      87      63      79      59      79
TEMP          91 80 72 72 89 79 71 69 84 74 67 64 76 69 62 60 76 69
DEWPT         67 68 67 68 70 67 67 66 67 64 62 60 63 59 57 56 61 57
RH            45 67 84 87 54 67 87 90 57 71 84 87 64 70 84 87 60 66
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC FW FW FW SC SC SC SC B1 B1 SC B1 B1 SC SC SC SC
POP 12HR           20      20      20      20      30      30      30      20      10
RAIN SHWRS       IS IS       IS IS IS    SC SC IS SC SC IS         
TSTMS            IS IS       IS IS       IS IS                     

$$


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