National Weather Service United States Department of Commerce

Severe Storms and Flooding Possible Today

Clusters of thunderstorms will move across the area today into tonight. Torrential downpours and training of storms could cause flash flooding. Severe wind gusts will also be possible. Read More >

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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Aug 11 2026

WVZ043-112000-
RAWS 465401
37.53N  81.00W Elev. 2725 ft
801 AM EDT Tue Aug 11 2026

Date             Tue 08/11/26            Wed 08/12/26            Thu 08/13/26
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                 82          66          80          66          82
TEMP                76 81 82 74 70 69 68 67 72 78 80 75 70 68 67 68 75 80 81 76
DEWPT               71 70 70 69 69 68 67 67 70 71 71 70 69 68 67 68 71 71 71 71
MAX/MIN RH                   67         100          74         100          71
RH                  85 69 67 84 97 97 97100 93 79 74 84 97100100100 87 74 72 85
WIND DIR             W  W  W  W  W  W  W  W  W  W  W  W  W SW  W  W  W  W  W  W
WIND SPD             8  8  8  5  6  6  6  8  9  9  8  4  3  3  3  3  5  6  6  4
WIND GUST           18 18    17 18 19 21 23 20 21 19                   17 17   
CLOUDS              B1 B1 SC B2 B2 B1 B1 B2 B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%)           56 54 33 84 72 64 59 79 63 59 58 67 67 75 75 73 77 70 70 71
VSBY                10 10 10 10  5  7  6  7 10 10 10 10 10 10 10  0  0 10 10   
POP 12HR                     40          80          60          50          60
RAIN SHWRS          IS SC     O SC SC SC    IS SC SC SC SC IS IS SC SC NM NM NM
TSTMS               IS SC    SC IS IS          SC SC SC IS             IS SC SC
MIX HGT              2  3  3 <1 <1 <1 <1 <1  2  4  3 <1 <1 <1 <1  1  2  3  3  1
T WIND DIR          NW NW  W NW NW SW SW  W  W  W  W  W  W SW  W  W SE  N NW NW
T WIND SPD           8 14  8 11  8  1  2 11 13 20 18 10  5  4 12  9  3 10 11 12
DISPERSION                   PR PR PR PR             VP VP VP VP             VP
ADI                 21 47 29  8  5  1  2 14 39 80 62  7  3  2  6 12  9 33 38  8
MAX LVORI            4  3  3  4  7 10 10  5  4  3  3  4  9  9  9  5  5  3  3  4
STABILITY            B  C  B  E  E  E  E  C  C  C  C  E  F  F  F  B  C  C  C  E
CEILING              None  None   100   100  1000  2100 16100  6300  5100  3500
STA PRES            27.71 27.68 27.68 27.66 27.63 27.59 27.56 27.57 27.57 27.62


Date          Fri 08/14/26Sat 08/15/26Sun 08/16/26Mon 08/17/26
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       67      80      65      80      65      84      68      80
TEMP          70 68 78 74 67 66 78 74 67 67 81 77 70 69 79 74
DEWPT         69 68 71 69 67 66 69 68 66 67 70 70 69 69 71 69
RH            97100 79 84100100 74 82 97100 69 79 97100 77 84
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B1 SC B1 B1 SC SC SC SC B1 SC B1 B1
POP 12HR           60      60      20      40      10      20      40      40
RAIN SHWRS    NM SC NM NM IS    SC SC          IS SC IS SC SC
TSTMS         SC IS IS SC          IS          IS 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