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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Wed Aug 19 2026

VAZ018-192000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
101 PM EDT Wed Aug 19 2026

Date             Wed 08/19/26            Thu 08/20/26            Fri 08/21/26
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                 87          68          84          65          79
TEMP                   85 85 75 71 70 69 69 77 82 80 72 69 68 67 66 72 78 74 68
DEWPT                  65 64 63 63 63 63 64 68 70 69 68 66 66 65 65 69 70 70 67
MAX/MIN RH                   48          84          65          98          78
RH                     51 50 66 76 78 81 84 74 67 69 87 90 93 93 97 90 76 87 97
WIND DIR                W NW NW  W  W  W  W  W  W  W NW NW NW NW  N SE SE SE  E
WIND SPD                4  5  3  3  2  2  2  5  8  8  4  3  1  1  1  2  3  2  2
CLOUDS                 FW CL SC SC B1 FW SC B1 B2 SC B1 B1 B1 B1 B2 B2 OV OV B2
CLOUDS(%)               6  5 29 39 60 15 50 53 81 40 52 54 67 67 72 83 92 92 80
VSBY                   10 10 10 10 10 10  7  7  6  7  7  7  6  6  6  6  6  6  6
POP 12HR                      0           5          40          50          90
RAIN SHWRS                               SC SC SC IS SC SC SC SC NM NM  O  O NM
TSTMS                                          SC IS SC IS          IS SC SC SC
MIX HGT                 5  6 <1 <1 <1 <1 <1  3  4  4 <1 <1 <1 <1 <1  2  2  2 <1
T WIND DIR              W  W  W  W  W SW SW  W  W  W NW NW  N  E NE  S NE SE NE
T WIND SPD              6  9 10  2  2  1  2 23 20 12  8  4  3  9  8  3  4  6  5
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                    44 63  5  1  1  1  2 86 90 56  5  2  2  4 10  8 13 14  3
MAX LVORI               1  1  3  3  4  6  5  3  1  3  5  6  7  6  7  5  4  5  8
STABILITY               A  A  G  G  F  G  A  B  B  B  E  F  F  F  B  B  B  B  F
CEILING                    None  None  None  7200  None  None 11900  1000     0
STA PRES                  27.79 27.78 27.76 27.78 27.77 27.81 27.87 27.93 27.85


Date          Sat 08/22/26Sun 08/23/26Mon 08/24/26Tue 08/25/26
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      82      63      81      60      81      60      83
TEMP          67 65 81 72 66 65 79 71 63 62 79 71 62 62 81 73
DEWPT         65 65 69 65 62 62 65 61 58 59 62 59 57 58 64 63
RH            93100 67 79 87 90 62 71 84 90 56 66 84 87 56 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 B1 SC SC SC SC FW FW FW FW FW FW SC SC
POP 12HR           70      30      10      10       5       5      20      10
RAIN SHWRS    NM IS    SC                         IS         
TSTMS         SC       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