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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Aug 20 2026

NCZ003-202000-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
801 AM EDT Thu Aug 20 2026

Date             Thu 08/20/26            Fri 08/21/26            Sat 08/22/26
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                 90          69          82          67          85
TEMP                83 89 88 81 75 72 70 70 76 81 80 74 70 69 68 68 76 82 84 78
DEWPT               68 67 68 70 70 69 68 68 70 70 71 70 70 68 67 68 70 69 68 68
MAX/MIN RH                   48          95          71         100          58
RH                  61 48 52 69 84 90 93 93 82 69 74 87100 97 97100 82 65 59 71
WIND DIR            SW SW  W  W  W  N NE NE NE  E  E NE NE NE NW  W  W SW SW SW
WIND SPD             4  5  5  3  3  3  3  4  3  3  2  3  2  2  2  2  2  3  3  2
CLOUDS              SC SC SC B2 B1 B1 B1 B1 B2 B2 B2 OV OV B2 B2 SC SC SC SC SC
CLOUDS(%)           34 35 45 71 68 51 60 67 75 80 87 98 98 73 76 49 45 43 43 35
VSBY                10 10  7  7  6  7  7  7  7  7  3  3  3 10 10 10 10  7  7 10
POP 12HR                     30          50          90          80          20
RAIN SHWRS                IS SC SC SC IS SC SC SC NM  O  O             IS IS   
TSTMS                     IS SC    IS       IS SC NM SC IS             IS IS   
MIX HGT              3  6  4 <1 <1 <1 <1  1  2  4  3 <1 <1 <1 <1 <1  2  4  4 <1
T WIND DIR          SW  W SW SW  N  N  E NE NE NE  E  E NE NE  E SE  S SW  S SW
T WIND SPD          12 11  9  3  2  2  3 10  6  6  6  4  3  4  2  3  8  5  6  8
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 45 84 48  2  1  1  2 12 17 32 23  2  2  2  1  4 24 31 33  4
MAX LVORI            1  1  1  3  5  7  7  5  3  3  3  6  8  9  8  9  3  1  1  3
STABILITY            A  A  A  F  F  F  F  C  B  B  B  F  F  F  F  A  A  A  A  G
CEILING              None  None  8500  3200   600   600   500   500  None  None
STA PRES            28.97 28.92 28.94 28.98 29.04 29.02 28.99 28.96 28.94 28.88


Date          Sun 08/23/26Mon 08/24/26Tue 08/25/26Wed 08/26/26
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       66      85      62      84      63      84      65      85
TEMP          68 67 84 76 65 64 82 76 65 65 81 77 67 67 83 78
DEWPT         65 65 62 61 59 59 59 60 58 58 64 64 64 65 68 68
RH            90 93 48 60 81 84 46 58 78 78 56 64 90 93 61 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW FW FW FW FW CL FW FW FW FW SC SC SC SC B1
POP 12HR            5       5       0       5       5      20      20      30
RAIN SHWRS                                  IS    IS IS IS SC
TSTMS                                             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