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

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

Date           08/17/26      Tue 08/18/26            Wed 08/19/26            Thu
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                 70          88          64          89          68
TEMP                75 73 71 72 81 86 86 80 73 69 66 68 81 87 89 83 75 71 69 72
DEWPT               71 70 69 69 71 69 69 68 67 66 63 65 67 65 65 67 66 64 63 66
MIN/MAX RH                   92          54          92          45          83
RH                  87 90 93 90 72 57 57 67 81 90 90 90 63 48 45 59 74 79 81 81
WIND DIR            NW NW  W NW NW NW NW NW NW NW NW NW  N NW NW  N NW  N  N  N
WIND SPD             1  1  2  3  5  4  5  4  4  2  2  2  0  1  2  0  1  0  0  0
CLOUDS              B2 B1 SC FW SC FW FW FW FW FW FW FW FW FW FW FW SC FW SC FW
CLOUDS(%)           85 54 32 24 39 18 21 13 14 18  9 11  6  6 12 18 28 16 29 19
VSBY                10 10  9 10 10 10 10 10 10 10  9 10 10 10 10 10 10 10 10 10
POP 12HR                     30           5           0           0           0
RAIN SHWRS                                                                     
TSTMS                                                                          
MIX HGT             <1 <1 <1 <1  3  5  4 <1 <1 <1 <1 <1  3  5  6 <1            
T WIND DIR          SW  N NW  N  N NW NW  N NW  N  N  N  N  N  N  N            
T WIND SPD           1  2  3  4  5  5  8  5  5 11  9 13 12 10 10  4            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  1  2  4 24 35 45  3  3  5  4 13 52 69 78  2            
MAX LVORI            6  7  7  6  3  1  1  3  5  5  6  5  1  1  1  3            
STABILITY            F  F  F  A  A  A  A  F  F  G  G  A  A  A  A  G            
CEILING                    None  None  None  None  None  None  None  None      
STA PRES                  28.06 28.08 28.04 28.07 28.07 28.10 28.08            


Date           08/20Fri 08/21/26Sat 08/22/26Sun 08/23/26Mon 08/24/26
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       89      67      84      65      82      64      84      61      84
TEMP          89 81 70 69 82 76 67 68 80 75 68 66 82 76 64 64 81 76
DEWPT         69 70 68 69 72 72 67 68 70 69 65 65 65 64 61 61 61 61
RH            52 69 93100 72 87100100 72 82 90 97 56 66 90 90 51 60
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B1 B1 B1 OV B1 B1 B1 B1 SC SC SC FW FW FW SC SC
POP 12HR           50      50      70      50      50      20      10      20      10
RAIN SHWRS       SC SC IS SC NM SC IS SC SC IS          IS         
TSTMS            SC SC    IS SC IS    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