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

VAZ024-192000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 AM 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                 92          68          90          65          83
TEMP                82 89 90 80 74 72 69 70 82 87 85 76 71 68 66 67 76 82 77 72
DEWPT               67 65 64 64 65 65 64 66 69 70 70 69 69 68 66 67 69 70 71 68
MAX/MIN RH                   41          86          55         100          68
RH                  61 45 42 58 74 79 84 87 65 57 61 79 93100100100 79 67 82 87
WIND DIR             W  W  W  W  W  W  W  W SW  W  W NW  N  N  N  N  E SE  E  E
WIND SPD             2  3  3  2  1  1  1  1  3  5  5  2  2  0  0  1  1  2  2  1
CLOUDS              FW FW FW FW FW SC SC SC B1 B2 SC B1 B1 B1 B1 B1 B2 B2 B2 B2
CLOUDS(%)            6  7 15 18 19 41 30 32 61 79 44 63 63 60 54 66 79 83 83 82
VSBY                10 10 10 10 10 10 10 10 10 10  7  6  6  7  7  6  6  6  6  6
POP 12HR                      0           5          50          40          70
RAIN SHWRS                                        IS SC SC SC SC SC SC NM NM NM
TSTMS                                             IS SC IS          IS SC SC SC
MIX HGT              4  5  5 <1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1  1  2  2  2 <1
T WIND DIR           W  W  W  W  W NW NW NW  W  W  W NW NW NE NE NE  W NE SE  E
T WIND SPD           3  6  8  3  2  2  2  1 19 16 13  4  3 11 10  9  2  5  5  5
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 17 46 52  2  1  1  1  1 59 85 67  2  2  5  5 13  5 17 12  3
MAX LVORI            2  1  1  3  3  4  5  5  1  1  1  4  7  9  9  5  4  3  4  6
STABILITY            A  A  A  G  G  F  G  A  B  B  A  F  F  F  F  B  B  B  B  F
CEILING              None  None  None  None  None  None 20800 14300  3400  1500
STA PRES            28.51 28.47 28.48 28.47 28.47 28.46 28.51 28.58 28.64 28.57


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       64      86      62      87      60      86      60      87
TEMP          67 67 85 76 67 65 85 76 63 63 84 75 63 63 85 77
DEWPT         67 67 70 68 66 65 65 62 61 61 62 61 60 60 64 64
RH           100100 61 76 97100 51 62 93 93 48 62 90 90 50 64
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 FW SC
POP 12HR           70      40      20      10       5       5      10      10
RAIN SHWRS    NM SC SC SC IS                                 
TSTMS         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