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

VAZ024-152000-
RAWS 441631
37.63N  79.51W Elev. 865 ft
501 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                 88          70          91          72          93
TEMP             72 83 88 85 77 74 72 71 71 81 89 89 81 76 74 72 74 86 92 91 82
DEWPT            71 73 73 74 74 73 72 71 71 74 74 75 74 73 71 70 71 72 72 71 70
MAX/MIN RH                   61         100          59          95          50
RH               97 72 61 70 90 97100100100 79 61 64 79 90 90 93 90 63 52 52 67
WIND DIR          N  N  E  E SE  N  N  N SE SW SW SW SW  W  W  W  W NW  W NW NW
WIND SPD          0  0  2  2  1  0  0  0  1  3  5  4  3  2  2  2  3  5  5  5  3
WIND GUST                                         14    12 12                13
CLOUDS           SC B1 B1 B1 B1 B1 B2 B1 B1 B2 B2 B1 FW SC SC SC SC SC SC SC FW
CLOUDS(%)        50 58 61 69 56 63 72 64 67 76 76 61 16 32 34 33 31 42 39 37 22
VSBY              4 10 10 10 10  6  5  4  5  7  5 10  3 10  9 10 10 10 10 10 10
POP 12HR                     50          50          50          10           5
RAIN SHWRS          IS SC SC IS IS IS SC SC SC SC IS                           
TSTMS               IS IS IS IS IS IS IS IS IS IS IS                           
Obvis            PF                                                            
MIX HGT          <1  3  4  3 <1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1  1  4  5  5 <1
T WIND DIR       NE  E SW NW  E  E SE SE  S  S  S SW  S  W  W  W NW NW NW NW NW
T WIND SPD        4  2  1  1  6  8  6  4  5 12 12 11  4  3 14  6  9 12 13 12  6
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI               4  9  6  4  3  4  3  2  6 35 49 42  2  2  7  3 12 57 90 86  3
MAX LVORI         9  3  3  3  6  8  9  9  8  3  1  1  4  7  6  6  5  1  1  1  3
STABILITY         A  B  B  B  F  F  F  F  B  B  C  C  G  G  G  G  A  A  A  A  G
CEILING              None  2700  2700  1400   300  None  None  None  None  None
STA PRES            28.65 28.61 28.61 28.57 28.54 28.44 28.42 28.39 28.42 28.38


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       67      91      65      92      69      92      65      86
TEMP          70 70 89 81 68 67 90 83 72 71 90 80 68 66 84 76
DEWPT         69 68 66 65 64 64 67 67 67 67 68 67 66 64 65 64
RH            97 93 47 58 87 90 47 59 84 87 49 65 93 93 53 66
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC FW FW FW FW FW SC SC SC SC B1 B1 B1 B1 B1
POP 12HR           10       5       5       5      10      40      30      30
RAIN SHWRS                                     SC SC    IS SC
TSTMS                                          SC 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