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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 PM EDT Mon Sep 21 2026

VAZ012-220800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
631 PM EDT Mon Sep 21 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                 61          71          54          60          50
TEMP             69 66 64 64 63 67 70 67 63 60 58 56 55 57 58 58 57 54 52 52 51
DEWPT            65 64 63 62 63 66 67 66 63 60 57 56 55 57 58 58 57 54 52 51 51
MIN/MAX RH                  100          91          99          97         100
RH               87 93 97 93100 97 90 97100100 96100100100100100100100100 96100
WIND DIR         SE  E  E  W SE SE  E  E  E  E  E  E  E  E  E  E  E  E  E  E  E
WIND SPD          1  1  1  1  1  1  1  1  2  3  4  4  4  3  3  3  4  4  4  3  3
WIND GUST                                                           14         
CLOUDS           SC B1 B2 B2 B2 OV OV OV OV OV B2 B2 B2 OV B2 OV B2 B2 B2 B2 B2
CLOUDS(%)        46 63 80 77 80 89 91 93 94 95 82 82 81 88 87 88 87 87 85 79 78
VSBY             10  8  2  1  2  8  8  5  4  6  6  5  3  3  6  6 10            
POP 12HR                     60          90          80          70          70
RAIN                                      D  L  C  L  L  L  C  C  L  L  C  C   
RAIN SHWRS       IS IS SC NM SC SC NM  O                                       
TSTMS            IS IS IS IS IS IS SC SC                                       
Obvis                                    PF                                    
MIX HGT          <1 <1 <1 <1 <1  1  2  1 <1 <1  1  1  1  1  2  2  1            
T WIND DIR        S  E SE SE  E  S SW  E  E  E  E  E  E  E  E  E  E            
T WIND SPD        5  3  9  4  2  5  2  1 10 11 10  6  9  8 10 12 11            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI               3  2  4  2  2  9  5  1  5  5  7  5 13 15 22 28  8            
MAX LVORI         6  8  6  6 10  6  6  7  9  9  8  9  5  5  5  4  8            
STABILITY         F  F  F  F  C  C  C  C  F  F  E  E  D  C  C  C  E            
CEILING              1700   100   100   100   200   200   300   300   300      
STA PRES            27.28 27.31 27.34 27.33 27.37 27.38 27.43 27.43            


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       61      45      68      41      69      41      71      44      73
TEMP          58 55 48 47 64 57 46 42 64 56 45 44 67 57 47 45 69 60
DEWPT         58 55 48 47 52 50 44 42 47 47 43 43 49 50 45 45 54 56
RH           100100100100 65 77 93100 54 72 93 96 52 77 93100 59 87
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 B1 SC SC FW FW FW FW FW FW SC SC SC FW SC SC
POP 12HR           10       0       5       0       5       0       5       0       5

$$


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