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

VAZ018-080800-
RAWS 444002
37.56N  80.18W Elev. 2702 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          86          68          88          67
TEMP                71 70 69 70 81 85 84 75 72 71 69 70 82 87 85 76 72 70 68 70
DEWPT               68 67 66 67 71 70 70 70 68 67 66 68 71 70 69 69 67 66 65 67
MIN/MAX RH                   93          61          93          56          91
RH                  90 90 90 90 72 61 63 84 87 87 90 93 69 57 59 79 84 87 90 90
WIND DIR             W  W  W  W  W  W SW SW  W  W  W  W  W  W  W  W  W  W  W  W
WIND SPD             2  2  3  3  4  5  4  3  3  3  3  3  4  4  4  2  2  2  2  3
WIND GUST                       14                                             
CLOUDS              SC SC SC SC FW B1 SC B1 SC SC SC SC SC B1 SC SC FW FW FW SC
CLOUDS(%)           38 49 35 26 16 57 33 57 39 35 43 39 47 54 34 31 20 22 22 26
VSBY                 9  6  6  4 10 10 10 10 10  9  7 10 10 10 10 10 10 10 10   
POP 12HR                      5          40           5          10           0
RAIN SHWRS                         SC IS                                       
TSTMS                              SC IS                                       
MIX HGT             <1 <1 <1 <1  4  5  4 <1 <1 <1 <1 <1  4  6  5 <1            
T WIND DIR          SW  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W            
T WIND SPD           3  3  3  4 16 14 14 12  4  4  5  5 12  9  8  8            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  2  5 76 63 68  6  2  2  3  6 58 41 49  4            
MAX LVORI            6  6  7  6  1  1  1  4  5  6  6  6  1  1  1  4            
STABILITY            G  F  G  A  A  C  A  F  G  G  F  A  A  C  A  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.94 27.93 27.93 27.87 27.89 27.89 27.91 27.87            


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       89      69      88      69      85      68      84      66      82
TEMP          87 80 71 71 86 78 72 70 83 76 71 70 81 75 69 68 80 74
DEWPT         69 69 66 67 70 69 67 68 71 70 68 67 70 68 65 65 68 67
RH            55 69 84 87 59 74 84 93 67 82 90 90 69 79 87 90 67 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC SC FW SC B1 B1 B2 B2 B2 B1 B2 B1 B1 B1 B2 B1
POP 12HR           10      20      20      30      40      40      40      20      40
RAIN SHWRS          IS    IS IS SC IS    SC SC IS SC SC IS IS IS SC
TSTMS               IS    IS IS IS       SC IS       SC 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