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

NCZ003-180800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
231 AM EDT Mon Aug 17 2026

Date           08/16/26      Mon 08/17/26            Tue 08/18/26            Wed
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                 71          92          70          88          65
TEMP                      72 74 85 90 89 81 76 73 71 72 81 85 86 79 72 68 65 68
DEWPT                     68 70 70 70 70 74 72 70 69 70 72 70 70 68 66 65 63 64
MIN/MAX RH                   93          49          93          57          93
RH                        87 87 61 52 54 79 87 90 93 93 74 61 59 69 81 90 93 87
WIND DIR                  SW SW  W  W  W NW  W NW NW NW NW  N NW NW  N NW NW NW
WIND SPD                   2  2  4  4  4  2  2  2  3  4  5  4  5  4  4  2  2  2
WIND GUST                                            14                        
CLOUDS                    SC SC FW SC B1 B2 OV SC FW FW SC FW FW FW FW FW FW FW
CLOUDS(%)                 49 37 20 29 59 72 88 44 20 19 31 11 13  8 12 11  6  9
VSBY                      10 10 10 10 10 10 10 10  9  9 10 10 10 10 10 10 10 10
POP 12HR                      5          30          30           5           0
RAIN SHWRS                            IS SC                                    
TSTMS                                 IS IS                                    
MIX HGT                   <1 <1  3  6  4 <1 <1 <1 <1 <1  4  5  6 <1 <1 <1 <1 <1
T WIND DIR                 W  W NW  W  W NW NW NW NW  N  N  N NW NW  N  N  N  N
T WIND SPD                 3  4 16 12  9  6  5  5  6 12 13 10 11 14  8  8  5  6
DISPERSION                VP             VP VP VP VP             VP VP VP VP   
ADI                        2  4 70 91 32  3  3  3  3 13 65 66 79  7  4  4  3  7
MAX LVORI                  6  5  1  1  1  4  6  6  6  5  3  1  1  3  5  6  6  5
STABILITY                  F  A  A  A  C  F  F  F  G  A  A  A  A  F  F  G  G  A
CEILING                    None  None  4200  7000  None  None  None  None  None
STA PRES                  28.10 28.09 28.05 28.06 28.05 28.08 28.05 28.09 28.09


Date           08/19Thu 08/20/26Fri 08/21/26Sat 08/22/26Sun 08/23/26
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       90      68      90      67      85      65      82      64      83
TEMP          86 82 70 71 89 81 70 70 82 76 68 67 79 75 67 66 81 76
DEWPT         66 68 64 66 70 71 68 68 72 72 68 67 71 70 66 66 68 67
RH            51 63 81 84 54 72 93 93 72 87100100 77 84 97100 65 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW SC B1 B1 B1 B1 B2 B2 B2 B1 B2 B1 SC SC SC
POP 12HR            0       0      40      30      70      60      60      30      20
RAIN SHWRS                   SC SC SC SC NM NM IS SC NM SC       IS
TSTMS                        SC SC       SC IS       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