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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 AM EDT Tue Aug 18 2026

VAZ012-182000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
931 AM EDT Tue Aug 18 2026

Date             Tue 08/18/26            Wed 08/19/26            Thu 08/20/26
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                 78          60          83          63          86
TEMP                74 78 78 71 66 64 60 62 73 80 82 75 69 66 65 66 78 84 80 72
DEWPT               67 65 64 64 64 63 60 61 61 60 60 62 62 61 60 61 65 66 67 66
MAX/MIN RH                   61         100          47          88          56
RH                  79 64 62 79 93 97100 97 66 51 47 64 78 84 84 84 64 55 65 81
WIND DIR            NW NW NW NW  N  W  W  W NW NW  W NW SW  N  N  W  W  W  W  W
WIND SPD             5  5  5  3  2  2  2  2  3  3  4  3  1  0  0  1  1  2  2  1
CLOUDS              B1 SC SC FW SC SC FW SC FW CL SC FW SC FW FW SC SC B1 B1 B1
CLOUDS(%)           57 41 31 16 29 33 17 33 14  5 32 10 26 20 25 50 50 68 68 52
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  7  7  6  6  7
POP 12HR                      5           0           0           5          50
RAIN SHWRS                                                       SC SC SC SC IS
TSTMS                                                               IS SC SC IS
MIX HGT              3  4  4 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  4  4  4 <1
T WIND DIR          NW NW NW NW NW  N NW  W NW NW NW  W SW  S SW  W NW SW  W  W
T WIND SPD          17 13 11 11  5  4  3  2  6  8  6  3  3  3  3  4 20 19 12  3
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 50 66 54  5  3  2  2  2 24 47 44  2  2  2  2  4 94 97 65  2
MAX LVORI            3  1  1  4  6  8 10  8  3  1  1  3  5  5  5  5  1  1  1  5
STABILITY            C  A  A  G  G  G  G  A  A  A  A  G  G  G  G  A  A  B  B  F
CEILING                    None  None  None  None  None  None  None  None  2100
STA PRES                  27.23 27.25 27.25 27.27 27.25 27.25 27.24 27.30 27.27


Date          Fri 08/21/26Sat 08/22/26Sun 08/23/26Mon 08/24/26
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       62      84      61      81      58      80      56      80
TEMP          65 65 82 72 63 64 77 72 62 61 76 70 58 59 76 70
DEWPT         64 65 67 66 63 64 65 63 60 60 61 59 58 57 58 57
RH            97100 61 81100100 67 73 93 97 60 68100 93 54 63
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 B2 B1 B1 B2 B1 SC FW SC SC FW SC SC SC
POP 12HR           30      70      30      40      10      20       5       5
RAIN SHWRS    IS    IS NM SC IS SC SC          IS            
TSTMS         IS    IS SC IS       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