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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Tue Sep 22 2026

NCZ018-230800-
RAWS 311941
36.22N  81.63W Elev. 3254 ft
231 AM EDT Tue Sep 22 2026

Date           09/21/26      Tue 09/22/26            Wed 09/23/26            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                 60          69          55          60          49
TEMP                      62 61 68 68 66 64 63 61 59 56 59 60 59 57 55 54 52 50
DEWPT                     61 61 65 64 63 61 62 60 59 56 59 59 59 57 55 54 52 50
MIN/MAX RH                  100          86         100          96         100
RH                        97100 90 87 90 90 97 97100100100 96100100100100100100
WIND DIR                   N  N  E SE NE  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD                   0  0  2  2  2  3  4  3  3  5  6  6  5  6  5  5  4  4
CLOUDS                    B2 B1 B2 B2 OV OV OV OV OV B2 B2 B2 B2 OV OV B2 B2 B2
CLOUDS(%)                 76 68 82 87 91 95 88 91 88 82 80 87 80 92 92 82 85 77
VSBY                       2  1 10  6  5  4  2  1  1  0  2  6  6  6  6  6  6   
POP 12HR                     40          90          70          80          80
RAIN                                                  C  C  L  L  D  D  C  C  S
RAIN SHWRS                SC IS SC NM  O NM NM SC SC                           
TSTMS                     IS IS IS SC SC                                       
Obvis                     PF PF                PF PF PF PF                     
MIX HGT                   <1 <1  1  2  1 <1 <1 <1 <1  1  1  1  1  1  1  1  1  1
T WIND DIR                 S  N SW NE  E NE  E  E NE NE NE NE NE NE  E  E NE NE
T WIND SPD                 1  0  1  4  5 10  9 10  9 10 11 11 14 13 14 14 11 11
DISPERSION                VP             VP VP VP VP             PR PR PR VP   
ADI                        1  0  2 10  7  5  6  5  4 13 17 18 23  9 10 10  8 16
MAX LVORI                 10 10  6  5  5  6  6  7  9  5  5  5  5  8  7  7  8  5
STABILITY                  F  C  C  C  C  F  E  F  F  D  D  D  D  E  E  E  E  D
CEILING                     200   200  3100   300   300   300   300   300   300
STA PRES                  26.92 26.95 26.96 26.98 27.00 27.06 27.06 27.06 27.04


Date           09/24Fri 09/25/26Sat 09/26/26Sun 09/27/26Mon 09/28/26
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       60      46      67      44      67      44      67      46      70
TEMP          58 56 50 47 66 57 47 45 65 57 47 45 64 57 49 47 67 60
DEWPT         57 54 50 47 51 49 46 42 43 45 44 41 44 46 45 43 49 51
RH            96 93100100 58 75 96 89 45 64 89 86 48 67 86 86 52 72
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 SC SC FW FW FW FW FW FW FW FW FW SC SC SC SC
POP 12HR           20       5      10       0       0       0       0       0       5
RAIN           S                                                   

$$


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