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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Fri Aug 14 2026

VAZ046-150800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
231 AM EDT Fri Aug 14 2026

Date           08/13/26      Fri 08/14/26            Sat 08/15/26            Sun
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly     17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08

MIN/MAX TEMP                 72          91          70          88          70
TEMP                      72 73 82 87 88 79 74 73 71 72 80 85 85 78 74 72 71 72
DEWPT                     68 69 72 74 74 74 73 72 71 72 73 74 74 73 72 71 71 72
MIN/MAX RH                   89          60         100          66         100
RH                        87 87 72 65 63 85 97 97100100 79 70 70 85 93 97100100
WIND DIR                   N  N NW  W  W NE NE  N  N NE NE  N NE NE  E  S  S  S
WIND SPD                   3  3  3  4  5  3  3  2  2  3  4  4  4  2  1  1  2  3
CLOUDS                    SC SC B1 B1 B2 B1 B1 B1 B1 SC B1 B1 SC B1 B1 B1 B1 B1
CLOUDS(%)                 47 42 67 57 72 69 65 57 61 46 60 60 50 52 54 64 59 65
VSBY                      10  9 10 10 10 10  9  4  4  5 10 10 10 10 10 10 10 10
POP 12HR                      5          60          50          40          30
RAIN SHWRS                   IS SC SC IS SC SC IS IS       SC IS SC SC IS IS   
TSTMS                              IS IS SC IS             IS IS SC IS         
MIX HGT                   <1 <1  3  4  4 <1 <1 <1 <1 <1  3  3  3 <1 <1 <1 <1 <1
T WIND DIR                NW  N SW  W  W SW SW  N NE NE NE NE  N NE  E SE SE  S
T WIND SPD                 2  1  5  8  6  4  1  2  4 10  9  5 11  9  4  9  5  5
DISPERSION                VP             VP VP VP VP             VP VP VP VP   
ADI                        1  1 19 31 33  2  1  1  2 11 28 19 46  4  2  4  3  6
MAX LVORI                  6  6  3  1  1  5  9  8  9  7  3  3  1  5  6  9  9  8
STABILITY                  F  A  B  C  B  F  F  F  F  A  C  C  A  F  F  F  F  B
CEILING                    None  4500  5800  6000  1100  None  None  4100  1400
STA PRES                  29.29 29.33 29.31 29.34 29.35 29.39 29.39 29.40 29.38


Date           08/16Mon 08/17/26Tue 08/18/26Wed 08/19/26Thu 08/20/26
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MAX/MIN TEMP       92      73      94      70      89      68      90      70      94
TEMP          88 83 75 75 92 84 73 72 86 80 70 70 87 82 73 72 91 83
DEWPT         75 74 72 72 74 73 70 69 70 68 66 67 70 69 69 70 70 70
RH            66 74 90 90 56 70 90 90 59 67 87 90 57 65 87 93 50 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 SC SC SC SC B1 B1 SC SC SC SC SC SC FW FW FW SC
POP 12HR           30      20      20      30      10      10      10      10      20
RAIN SHWRS       SC IS       IS SC                               IS
TSTMS            SC IS       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