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 Wed Jul 29 2026

VAZ024-300800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 PM EDT Wed Jul 29 2026

Date           07/29/26      Thu 07/30/26            Fri 07/31/26            Sat
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                 60          89          60          91          65
TEMP                67 64 62 65 79 87 88 79 70 65 62 66 82 88 90 80 72 68 66 69
DEWPT               58 60 59 59 59 58 57 57 58 58 57 59 61 59 58 60 61 61 61 63
MIN/MAX RH                   90          34          87          34          85
RH                  73 87 90 81 50 38 35 47 66 78 84 78 49 38 34 51 68 78 84 81
WIND DIR             W  W  W  W NW NW NW  N NW NW  N  N  N SW  S SE  N  N  N  N
WIND SPD             2  2  2  2  3  3  4  4  2  1  0  0  0  2  2  1  0  0  0  0
WIND GUST                                18                                    
CLOUDS              CL CL CL CL CL FW FW FW FW CL FW CL FW FW FW FW SC SC B1 B1
CLOUDS(%)            3  1  3  4  4 11  7 20  6  1 10  2  7 17 21 18 31 34 53 59
VSBY                10  2  2 10 10 10 10 10  7  7  7  7  7  7  7  7  7  7  7  7
POP 12HR                      0           0           0           0           0
RAIN SHWRS                                                                   SC
Obvis                  PF PF                                                   
MIX HGT             <1 <1 <1  1  4  6  6 <1 <1 <1 <1 <1  5  6  7 <1            
T WIND DIR          NW NW NW NW  N  N  N NW NW NW NW NW SW SW  W SE            
T WIND SPD           6  5  4  9 14 10 10  9  4  3  3  3  1  4  2  2            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  3  3  2 14 69 80 78  4  2  2  2  3  7 36 19  1            
MAX LVORI            3  5  6  4  1  1  1  2  3  4  5  4  2  1  2  2            
STABILITY            G  G  G  A  A  A  A  F  G  G  G  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.37 28.40 28.43 28.43 28.50 28.51 28.52 28.48            


Date           08/01Sun 08/02/26Mon 08/03/26Tue 08/04/26Wed 08/05/26
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       88      67      84      67      84      67      86      68      86
TEMP          87 81 71 70 81 77 71 69 82 78 70 69 84 79 70 70 85 78
DEWPT         65 66 68 69 71 71 71 69 72 72 70 69 72 72 70 70 72 72
RH            48 60 90 97 72 82100100 72 82100100 67 79100100 65 82
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B2 B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 SC B1 B1
POP 12HR           30      60      70      70      60      30      50      30      50
RAIN SHWRS    SC SC SC NM SC NM NM SC SC NM SC    IS SC SC    IS SC
TSTMS            SC IS       SC SC       SC          IS IS       SC

$$


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