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
831 PM EDT Sat Aug 8 2026

VAZ024-090800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
831 PM EDT Sat Aug 8 2026

Date           08/08/26      Sun 08/09/26            Mon 08/10/26            Tue
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                 69          94          68          95          70
TEMP                76 73 70 72 87 93 93 84 76 72 70 72 87 93 94 87 78 73 70 73
DEWPT               70 69 68 69 71 69 68 69 69 68 67 68 71 69 68 70 70 69 68 69
MIN/MAX RH                   95          43          94          42          95
RH                  82 87 93 90 59 46 44 61 79 87 90 87 59 46 43 57 76 87 93 87
WIND DIR             W SW  W  W NW  W  W SW  W  N  N  W  W  W  W  W  W  W  W  W
WIND SPD             1  1  1  1  2  3  3  2  1  0  0  1  2  4  5  3  2  1  2  2
CLOUDS              B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC FW FW
CLOUDS(%)           61 50 46 39 37 50 45 43 42 26 30 31 38 43 35 25 26 30 12 21
VSBY                10 10  7 10 10 10 10 10 10  7  6 10 10 10 10 10 10 10 10 10
POP 12HR                      0          10           5          10          10
RAIN SHWRS                                                                     
TSTMS                                                                          
MIX HGT             <1 <1 <1 <1  3  6  5 <1 <1 <1 <1 <1  3  5  5 <1            
T WIND DIR          SW  W  W NW  W  W  W  W  W  W NW NW  W  W  W  W            
T WIND SPD           3  3  3  2  8 10 12 10  4  3  3  2  6 14 16  5            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  2  2 33 73 75  5  2  2  2  2 28101105  3            
MAX LVORI            5  7  7  6  1  1  1  3  4  6  7  6  2  1  1  3            
STABILITY            F  F  F  A  A  A  A  F  F  G  G  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.59 28.60 28.62 28.58 28.60 28.60 28.63 28.56            


Date           08/11Wed 08/12/26Thu 08/13/26Fri 08/14/26Sat 08/15/26
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       94      69      92      69      91      69      90      66      88
TEMP          94 86 73 72 90 84 73 72 90 84 72 71 88 82 71 68 86 81
DEWPT         70 70 70 70 71 71 70 70 71 70 69 69 69 68 67 65 67 67
RH            46 59 90 93 54 65 90 93 54 63 90 93 54 63 87 90 53 63
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 SC SC B1 B1
POP 12HR           10      20      30      40      20      10      30      20      40
RAIN SHWRS          IS       SC SC IS    IS       IS SC IS IS IS SC
TSTMS               IS       SC IS       IS          SC          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