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
339 AM EDT Sat Aug 8 2026

VAZ046-082000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
339 AM EDT Sat Aug 8 2026

Date             Sat 08/08/26            Sun 08/09/26            Mon 08/10/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 92          72          93          71          94
TEMP          72 73 84 90 89 81 77 75 73 74 85 91 91 82 76 74 72 74 86 92 93 86
DEWPT         70 71 73 72 72 72 71 71 70 71 73 71 71 71 71 70 69 70 71 69 69 70
MAX/MIN RH                   54          91          51          92          44
RH            93 93 70 56 57 74 82 87 90 90 67 52 52 69 85 87 90 87 61 47 46 59
WIND DIR      SW SW SW SW SW SW SW SW SW SW  W SW SW SW SW SW  W  W  W SW SW SW
WIND SPD       5  6  8  9 10  6  5  5  4  4  5  5  5  4  3  3  2  2  3  5  6  4
CLOUDS        SC SC SC SC SC SC SC SC SC SC B1 SC B1 SC SC SC SC SC SC FW SC FW
CLOUDS(%)     39 38 38 31 50 27 45 41 33 39 59 50 59 49 32 42 45 31 31 21 26 23
VSBY           9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     10          10          20           5           5
MIX HGT       <1 <1  4  6  4 <1 <1 <1 <1 <1  4  7  6 <1                        
T WIND DIR    SW SW  W  W  W SW SW  W SW SW  W SW SW SW                        
T WIND SPD     3  3 14 14 14 12  2  3  3  3  6  5  8  3                        
DISPERSION    PR             PR PR PR VP             VP VP VP VP             VP
ADI            2  4 69101 72  6  1  2  2  3 32 43 52  2                        
MAX LVORI      7  6  3  1  1  4  5  7  7  6  3  1  1  3                        
STABILITY      F  B  B  B  B  F  F  F  F  A  A  B  B  G                        
CEILING              None  None  None  None  None  None  None                  
STA PRES            29.41 29.32 29.34 29.35 29.37 29.32                        


Date          Tue 08/11/26Wed 08/12/26Thu 08/13/26Fri 08/14/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       73      95      72      92      71      91      71      88
TEMP          75 75 94 86 75 74 89 83 74 73 88 83 74 72 86 79
DEWPT         70 70 71 71 70 70 73 72 71 70 72 72 70 69 72 71
RH            84 84 47 61 84 87 59 70 90 90 59 70 87 90 63 77
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW SC SC B1 B1 SC SC SC SC SC SC B1 B1 B1
POP 12HR            5      10      20      20      10      20      10      30
RAIN SHWRS                IS       IS          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