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 Fri Aug 7 2026

VAZ024-080800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 PM EDT Fri Aug 7 2026

Date           08/07/26      Sat 08/08/26            Sun 08/09/26            Mon
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          92          68          93          68
TEMP                74 72 70 71 86 91 89 82 75 72 70 71 86 92 93 85 76 71 69 71
DEWPT               71 70 68 70 72 70 71 72 71 70 68 70 72 70 69 70 70 68 67 68
MIN/MAX RH                   99          50          97          46          95
RH                  90 93 93 97 63 50 56 72 87 93 93 97 63 49 46 61 82 90 93 90
WIND DIR            SW SW  W SW  W SW SW SW SW  W  W  W  W  W  W  W  W  N NW NW
WIND SPD             1  1  1  1  3  4  5  2  1  1  1  1  2  3  3  1  1  0  1  1
CLOUDS              B1 SC SC SC FW SC SC SC SC FW SC FW SC SC SC SC FW FW FW FW
CLOUDS(%)           55 43 39 36 20 50 46 41 48 24 48 20 32 44 39 28 23 20 17 19
VSBY                 9  8  7  9 10 10 10 10 10 10  8 10 10  7  7 10 10 10 10   
POP 12HR                     10          40          10          20           5
RAIN SHWRS                         SC IS                   IS IS               
TSTMS                              SC IS                   IS IS               
Obvis                     PF PF                                                
MIX HGT             <1 <1 <1 <1  3  6  3 <1 <1 <1 <1 <1  3  6  6 <1            
T WIND DIR           S SW  W NW  W  W  W  W  W  W  W  W  W  W  W  W            
T WIND SPD           2  2  2  2 12 14 14  9  3  3  3  3  9  8  9  4            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  1  1  2 56106 49  4  2  2  2  3 38 60 66  2            
MAX LVORI            7  7  8  8  1  1  1  3  6  7  8  6  1  1  1  3            
STABILITY            F  F  G  A  A  A  A  F  F  G  F  A  A  A  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.64 28.64 28.63 28.56 28.58 28.58 28.60 28.56            


Date           08/10Tue 08/11/26Wed 08/12/26Thu 08/13/26Fri 08/14/26
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       95      70      94      69      91      69      90      67      88
TEMP          93 87 74 73 93 85 73 72 89 83 73 71 88 83 71 69 86 80
DEWPT         68 70 69 69 69 70 70 70 71 71 70 70 70 68 68 67 67 67
RH            44 57 84 87 46 61 90 93 56 67 90 97 55 61 90 93 53 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC FW FW SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR            5      20      20      20      40      30      40      20      30
RAIN SHWRS          IS    IS IS IS       SC SC    SC SC IS IS IS SC
TSTMS               IS       IS IS       SC IS       SC 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