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

NCZ003-082000-
RAWS 310302
36.35N  80.48W Elev. 1076 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                 87          69          88          70          89
TEMP          70 70 79 85 84 78 73 71 70 70 81 86 85 78 74 72 70 71 83 88 86 80
DEWPT         69 70 71 71 72 71 70 70 69 69 72 71 72 72 71 70 69 70 72 71 71 72
MAX/MIN RH                   61          97          59          98          57
RH            97100 77 63 67 79 90 97 97 97 74 61 65 82 90 93 97 97 70 57 61 77
WIND DIR      SW SW SW SW SW SW SW  W  W  W  W SW  W SW  W  W  W  W  W  W  W SW
WIND SPD       4  3  4  5  4  3  3  3  3  3  2  3  3  2  2  3  2  3  3  4  4  3
CLOUDS        SC SC FW B1 SC SC B1 SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC
CLOUDS(%)     28 36 23 52 45 44 69 34 40 39 40 37 54 45 42 47 41 36 39 48 47 41
VSBY           8  8 10 10 10 10 10 10 10  7 10  7  7 10 10 10 10 10 10 10 10 10
POP 12HR                     30          10          40          10          20
RAIN SHWRS             SC IS                      SC                   IS IS   
TSTMS                  SC IS                      SC                   IS IS   
MIX HGT       <1 <1  3  5  3 <1 <1 <1 <1 <1  2  5  4 <1                        
T WIND DIR     W  W  W SW SW SW SW  W  W  W NW  W SW  W                        
T WIND SPD     1  1  9  8  9  6  3  5  2  2  4  3  5  6                        
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            1  1 31 46 32  3  2  3  1  2 14 22 30  3                        
MAX LVORI      9 10  3  1  3  5  7  8  8  8  3  2  3  4                        
STABILITY      F  A  A  B  C  F  F  G  G  A  A  A  A  F                        
CEILING              None  None  None  None  None  None  None                  
STA PRES            29.10 29.02 29.04 29.03 29.06 29.00                        


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       70      90      71      89      70      88      70      86
TEMP          72 72 87 82 73 72 86 81 72 72 85 82 72 72 84 79
DEWPT         70 69 71 71 69 70 72 71 70 70 72 71 70 69 71 71
RH            93 90 59 69 87 93 63 72 93 93 65 69 93 90 65 77
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW FW SC FW FW FW SC SC SC SC SC SC SC SC B1
POP 12HR            5      10      10      20      10      20       5      40
RAIN SHWRS                         IS          IS          SC
TSTMS                              IS          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