National Weather Service United States Department of Commerce

Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Aug 6 2026

VAZ046-070800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 PM EDT Thu Aug 6 2026

Date           08/06/26      Fri 08/07/26            Sat 08/08/26            Sun
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                 71          90          71          90          70
TEMP                75 73 72 74 83 88 88 80 75 74 72 73 84 90 87 80 75 72 70 73
DEWPT               72 71 70 71 72 71 71 72 72 72 71 72 74 73 73 73 72 71 70 71
MIN/MAX RH                   96          55         100          58         100
RH                  90 93 93 90 70 57 57 77 90 93 97 97 72 58 63 79 90 97100 93
WIND DIR            SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  W
WIND SPD             3  3  3  4  8  9 10  4  5  5  6  6  8  9  9  5  5  4  4  4
WIND GUST                                16                                    
CLOUDS              SC SC SC SC FW SC SC FW SC SC FW CL FW B1 B1 SC SC SC SC FW
CLOUDS(%)           39 47 36 41 23 32 39 17 37 33 22  5 22 57 59 44 34 29 36 22
VSBY                10 10  8  8 10 10 10 10 10 10 10 10 10  7  7 10 10 10 10 10
POP 12HR                     30          10          10          40           5
RAIN SHWRS                                                 SC SC               
TSTMS                                                      SC SC               
MIX HGT             <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  3  7  5 <1            
T WIND DIR          SW SW SW SW SW SW SW SW SW SW SW SW  W  W  W  W            
T WIND SPD           4  5  5 12 16 19 20 12  5  6  6 14 20 18 13  5            
DISPERSION          VP VP VP             VP PR PR PR             PR PR VP VP   
ADI                  3  4  3 16 61120120  6  3  3  3 18 88 85 56  4            
MAX LVORI            6  6  9  5  3  1  1  4  6  6  8  5  3  1  1  4            
STABILITY            E  E  F  A  B  B  B  F  F  F  F  B  B  C  C  E            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            29.46 29.48 29.49 29.42 29.41 29.38 29.36 29.31            


Date           08/09Mon 08/10/26Tue 08/11/26Wed 08/12/26Thu 08/13/26
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      70      93      71      94      72      92      70      90
TEMP          90 84 73 72 91 85 74 73 91 85 74 74 90 82 73 72 88 82
DEWPT         70 69 69 68 69 70 69 70 71 70 70 70 72 72 70 70 72 71
RH            52 61 87 87 49 61 84 90 52 61 87 87 56 72 90 93 59 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC FW FW FW FW SC FW FW FW SC SC SC SC B1 B1 B1 B1
POP 12HR           10       0       5      10      10      20      30      20      30
RAIN SHWRS                                  IS       SC IS       SC
TSTMS                                       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