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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Fri Aug 14 2026

VAZ024-142000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
431 AM EDT Fri Aug 14 2026

Date             Fri 08/14/26            Sat 08/15/26            Sun 08/16/26
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          70          90          70          93
TEMP          70 71 81 88 88 79 75 73 71 72 80 86 84 78 74 72 70 72 83 91 89 82
DEWPT         69 70 73 74 74 74 73 72 71 72 73 73 74 73 72 71 70 72 73 74 75 74
MAX/MIN RH                   58         100          63         100          58
RH            97 97 77 63 63 85 94 97100100 79 65 72 85 93 97100100 72 58 64 77
WIND DIR       N  N  W  W  W  N  N  N  N  N NE NE NE SE  N  N  N  S SW SW  W  W
WIND SPD       0  0  1  3  3  1  1  0  0  1  1  2  2  1  0  0  0  1  2  4  4  2
CLOUDS        B1 B1 B2 B2 B1 B1 B2 B2 B1 B1 B1 OV B1 B1 B2 B2 B1 B1 B1 B1 B1 FW
CLOUDS(%)     62 64 86 75 66 64 72 72 66 69 56 88 66 62 72 76 61 58 56 59 59 19
VSBY           8  8 10 10 10 10  7  4  3  4 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     80          50          60          40          40
RAIN SHWRS       SC  O SC SC SC SC SC    IS SC SC SC SC SC       IS IS SC SC   
TSTMS                  SC SC SC IS             SC SC SC IS             SC SC   
MIX HGT       <1 <1  2  3  3 <1 <1 <1 <1 <1  2  3  2 <1 <1 <1 <1 <1  2  4  4 <1
T WIND DIR    NW NW  W NW  W SW  S  N  N  E  E NE NE NE NE NE  S  S  S SW SW SW
T WIND SPD     2  2  5  5  6  1  1  2  2  2  6  4  6  5  1  1  2  6  8 13 11  5
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            1  2 16 21 26  1  1  1  1  2 21 15 21  3  1  1  1  7 23 77 40  3
MAX LVORI      8  8  3  2  3  6  8 10 10  9  3  3  3  6  8 10 10  8  3  1  1  4
STABILITY      F  B  B  B  B  F  F  F  F  B  B  B  B  F  F  F  F  B  B  A  C  G
CEILING              2200  5700  7600  2200  3700  4300  4000  2900  None  None
STA PRES            28.57 28.54 28.57 28.58 28.62 28.62 28.62 28.59 28.56 28.44


Date          Mon 08/17/26Tue 08/18/26Wed 08/19/26Thu 08/20/26
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       72      94      68      91      65      91      68      94
TEMP          74 74 93 83 72 70 88 80 68 68 88 82 71 70 91 82
DEWPT         71 71 72 71 70 69 68 67 65 65 68 68 68 68 69 69
RH            90 90 51 67 93 97 52 65 90 90 52 63 90 93 49 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B1 SC SC SC FW SC SC SC FW FW SC SC
POP 12HR           10      20      30      10      10      10      10      20
RAIN SHWRS             IS SC                               IS
TSTMS                  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