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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Thu Aug 13 2026

VAZ012-140800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
131 AM EDT Thu Aug 13 2026

Date           08/12/26      Thu 08/13/26            Fri 08/14/26            Sat
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          86          66          87          67
TEMP                   64 65 66 76 82 82 74 69 68 67 68 77 82 85 77 70 69 68 69
DEWPT                  65 65 67 70 70 70 69 67 67 66 68 72 71 71 70 68 68 67 68
MIN/MAX RH                  100          63         100          64          99
RH                    104100104 82 67 67 84 93 97 97100 85 69 63 79 93 97 97 97
WIND DIR                W  W  W  W  W  W NW NW SW  W  W  W  W  W  W  W  W  W  W
WIND SPD                3  3  3  3  3  3  2  1  1  1  2  2  2  2  1  1  1  1  1
CLOUDS                 SC B1 B2 B1 B1 B1 SC SC B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1
CLOUDS(%)              49 66 77 54 58 59 34 50 54 60 79 82 71 54 57 57 51 51 65
VSBY                    9  7  7 10 10 10 10 10  7  6  7 10 10 10 10 10 10 10  9
POP 12HR                     40          30          20          60          40
RAIN SHWRS                            IS                   NM SC SC SC SC SC SC
TSTMS                                 IS                   IS IS SC            
MIX HGT                <1 <1 <1  2  4  3 <1 <1 <1 <1 <1  2  4  3 <1 <1 <1 <1 <1
T WIND DIR             SW  W  W  W  W  W  W SW SW  W  W  W  W  W  W  W NW NW NW
T WIND SPD              3  8  8  6 14 14  6  4  6  5  6 11 18 18 10  8  6  4  6
DISPERSION             VP VP             VP VP VP VP             VP VP VP VP   
ADI                     2  4  8 19 73 62  3  2  3  3  7 32 86 66  5  4  3  2  8
MAX LVORI              10  9  8  3  1  1  5  6  8  8  8  4  3  1  4  6  8  8  8
STABILITY               F  F  B  B  B  B  G  F  F  F  B  B  B  B  F  F  F  F  B
CEILING                       0   600  None  None   100   200  None  None  None
STA PRES                  27.24 27.28 27.25 27.28 27.31 27.34 27.31 27.34 27.37


Date           08/15Sun 08/16/26Mon 08/17/26Tue 08/18/26Wed 08/19/26
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       87      67      90      69      88      65      85      62      86
TEMP          82 77 68 68 85 79 71 70 86 74 67 66 80 75 64 64 82 76
DEWPT         72 70 67 68 71 70 68 68 70 69 66 66 68 67 63 64 66 66
RH            72 79 97100 63 74 90 93 59 84 97100 67 76 97100 58 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 SC B1 SC B1 SC FW SC B1 B1 B1 B1 B1 SC SC SC SC
POP 12HR           70      20      40      20      50      40      40      20      20
RAIN SHWRS    SC NM IS       SC IS       SC SC    IS SC IS    IS IS
TSTMS         IS SC IS       SC IS       SC          SC          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