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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Sat Aug 15 2026

VAZ012-152000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
431 AM EDT Sat Aug 15 2026

Date             Sat 08/15/26            Sun 08/16/26            Mon 08/17/26
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                 86          68          87          69          86
TEMP          68 69 78 84 84 75 70 69 68 69 79 84 87 79 72 71 70 69 77 81 84 76
DEWPT         67 69 72 71 72 70 68 68 68 69 71 70 70 69 67 67 66 67 70 69 70 68
MAX/MIN RH                   61         100          56          92          62
RH            97100 82 65 67 84 93 97100100 77 63 57 72 84 87 87 93 79 67 63 76
WIND DIR      NW  W  W NW NW NW  W  W  W  W  W  W  W  W  W  W  W  W  W NW  W NW
WIND SPD       1  1  2  2  2  1  1  1  2  2  3  3  3  2  3  4  4  3  3  4  3  2
CLOUDS        SC B2 B1 B1 B1 SC SC SC B1 B1 FW SC SC B1 B1 SC B1 B1 B1 B1 B1 SC
CLOUDS(%)     41 80 58 52 55 36 43 45 56 59 24 35 36 51 51 32 53 60 52 67 67 38
VSBY           4  3 10 10 10 10  9  5  3  5 10 10 10 10 10  8 10 10 10 10 10  9
POP 12HR                     20          30          10          30          50
RAIN SHWRS                IS IS       SC             SC SC             SC SC IS
TSTMS                     IS IS       IS             SC IS             SC SC IS
Obvis         PF PF                                                            
MIX HGT       <1 <1  3  4  3 <1 <1 <1 <1 <1  3  5  3 <1 <1 <1 <1  1  3  4  3 <1
T WIND DIR    NW  N NW NW NW NW SW SW  W SW  W  W  W SW  W  W  W NW NW  W  W NW
T WIND SPD     4  4  5 11  9  1  1  3  4  4 12 20 16  8  6  3  8 12 18 17 13 10
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            2  5 19 59 37  1  1  2  2  5 49135 62  4  3  2  5 20 75 65 56  5
MAX LVORI      9  9  3  1  3  6  8  8  8  9  3  1  1  3  5  6  5  5  3  1  1  4
STABILITY      F  B  B  B  B  G  F  F  F  B  A  A  A  F  F  F  E  B  B  C  B  G
CEILING               300  None  None  1100  None  None  None  None  None  2400
STA PRES            27.43 27.39 27.38 27.35 27.33 27.26 27.23 27.23 27.22 27.20


Date          Tue 08/18/26Wed 08/19/26Thu 08/20/26Fri 08/21/26
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       65      84      60      88      66      85      60      82
TEMP          67 65 80 74 62 63 83 77 67 67 80 73 62 63 77 71
DEWPT         66 65 64 63 60 61 63 65 63 64 66 65 62 61 63 62
RH            97100 58 69 93 93 51 67 87 90 62 76100 93 62 73
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 SC FW FW FW FW FW SC SC B1 B1 B1 SC B1 B1
POP 12HR           20      10       5       5      20      40      30      40
RAIN SHWRS    IS                         IS IS SC SC IS IS SC
TSTMS         IS                               SC 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