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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EDT Mon Aug 17 2026

VAZ046-172000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
1231 PM EDT Mon Aug 17 2026

Date             Mon 08/17/26            Tue 08/18/26            Wed 08/19/26
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                 94          70          90          68          92
TEMP                   92 92 82 76 74 72 73 83 89 88 80 75 71 69 71 83 90 91 84
DEWPT                  70 69 72 72 72 70 71 72 72 71 71 70 68 66 67 68 67 65 65
MAX/MIN RH                   45         100          57          92          43
RH                     49 47 72 87 93 93 93 70 57 57 74 84 90 90 87 61 47 42 53
WIND DIR               NW  W  W  W NW NW  N  N  N  N NE NE  N  N  N  W  W  W  S
WIND SPD                6  6  4  3  3  3  3  4  3  3  2  2  2  2  1  2  4  5  1
CLOUDS                 SC SC B2 B2 B1 SC FW SC SC SC SC SC SC SC SC FW CL CL CL
CLOUDS(%)              39 46 70 72 58 46 20 41 44 46 46 34 39 40 30 14  3  5  4
VSBY                   10 10 10  7  3  2  4 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     20          50          20           5           0
RAIN SHWRS                IS SC SC             IS                              
TSTMS                     IS IS IS                                             
MIX HGT                 6  5 <1 <1 <1 <1 <1  4  5  5 <1 <1 <1 <1 <1  5  6  6 <1
T WIND DIR             NW NW  W  W  W  N  N  N  N  N  N NE  N NE NE  E  W  W SE
T WIND SPD             16  8  2  1  1  2  9  9  3  5  8  5  4 10  8  4  3  4  1
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                   102 49  2  1  1  1  9 43 22 33  4  3  2  5  9 27 24 36  1
MAX LVORI               1  1  3  7  8  8  6  3  2  1  3  5  6  6  5  2  2  1  2
STABILITY               B  B  E  F  F  F  A  A  A  A  F  G  G  G  A  A  A  A  G
CEILING                    None  7000  None  None  None  None  None  None  None
STA PRES                  29.16 29.17 29.18 29.21 29.17 29.22 29.24 29.24 29.20


Date          Thu 08/20/26Fri 08/21/26Sat 08/22/26Sun 08/23/26
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       69      93      67      85      66      83      65      85
TEMP          72 72 92 82 71 68 82 76 68 68 81 76 69 67 82 77
DEWPT         67 68 70 70 70 68 71 70 68 68 71 70 68 67 68 66
RH            84 87 49 67 97100 69 82100100 72 82 97100 63 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW SC B1 B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 SC SC
POP 12HR            5      40      60      70      70      50      40      20
RAIN SHWRS             SC NM SC IS NM NM SC IS SC SC       IS
TSTMS                  IS SC          SC       IS 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