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
631 PM EDT Thu Aug 6 2026

VAZ012-070800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
631 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                 64          80          63          83          63
TEMP             74 68 66 65 66 74 78 79 72 67 66 65 66 76 82 80 73 68 66 64 66
DEWPT            68 66 65 64 65 68 68 68 68 66 65 64 66 70 69 68 67 66 65 64 66
MIN/MAX RH                   98          68         100          64         100
RH               82 93 97 97 97 82 71 69 87 97 97 97100 82 65 67 81 93 97100100
WIND DIR         SW SW  S  W SW SW SW SW SW SW SW  W  W  W  W  W SW  W  W  W  W
WIND SPD          2  1  2  2  2  5  4  5  3  1  2  2  2  2  2  2  2  2  2  2  2
CLOUDS           B2 B2 B1 SC SC SC B1 B1 SC SC FW FW SC SC B2 B2 SC SC SC SC B1
CLOUDS(%)        71 70 52 45 49 48 69 52 35 32 11 23 28 37 82 82 39 37 35 43 57
VSBY             10  9  6  5  4 10 10 10 10 10  9 10  7  7  6  6 10 10 10 10  7
POP 12HR                     20          40          10          70          10
RAIN SHWRS       IS             IS SC SC             IS IS NM NM               
TSTMS                           IS SC SC                IS SC SC               
MIX HGT          <1 <1 <1 <1 <1  3  4  3 <1 <1 <1 <1 <1  3  4  3 <1            
T WIND DIR       SW SW  S SW  W SW SW SW SW SW SW SW SW  W  W  W  W            
T WIND SPD        6  2  2  3  4  5 12 14 10  5  5  8 16 23 13 10  9            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI               3  1  1  2  5 20 55 53  5  3  3  4 18 78 71 39  4            
MAX LVORI         6  7  8 10  9  3  1  3  5  8  8  9  5  3  1  3  5            
STABILITY         F  F  F  F  B  A  B  A  G  G  G  G  A  A  B  B  G            
CEILING              6900  None  None  None  None  None  None  4200  None      
STA PRES            27.44 27.46 27.48 27.40 27.40 27.38 27.40 27.36            


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       85      63      87      64      86      65      83      65      82
TEMP          82 77 66 65 83 78 67 67 82 77 68 68 80 75 67 66 78 74
DEWPT         67 66 64 65 67 67 65 67 68 68 66 66 69 68 66 66 69 68
RH            61 69 93100 59 69 93100 63 74 93 93 69 79 97100 74 82
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC FW SC SC FW SC SC SC B1 SC B1 B1 B1 B1 B1 B2
POP 12HR           20       5      20      10      20      30      50      40      60
RAIN SHWRS       IS          IS          IS SC    IS SC SC IS SC NM
TSTMS            IS          IS          IS 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