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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Sep 18 2026

VAZ012-190800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
801 PM EDT Fri Sep 18 2026

Date           09/18/26      Sat 09/19/26            Sun 09/20/26            Mon
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                 63          79          62          79          61
TEMP                66 64 63 64 71 76 78 69 65 64 63 63 73 78 76 69 65 63 61 63
DEWPT               66 64 63 64 67 66 66 66 65 64 63 63 67 67 68 67 65 63 61 63
MIN/MAX RH                  100          66         100          69         100
RH                 100100100100 87 71 67 90100100100100 81 69 76 93100100100100
WIND DIR             N  N  N  N  E SE SE SE SE SE  S  S SW  W  W SW SW  W  W  W
WIND SPD             1  0  0  0  1  1  1  2  2  2  2  1  1  1  1  1  1  1  1  1
CLOUDS              SC B1 B2 B2 OV B2 B1 B1 B1 B2 B1 SC B1 OV OV B1 B1 SC SC B1
CLOUDS(%)           48 61 81 79 90 76 66 62 66 75 68 50 52 88 88 58 54 48 39 55
VSBY                 9  6  4  4 10 10 10 10 10  7 10  7  7  3  3  7            
POP 12HR                     20          20          10          70          30
RAIN SHWRS                         IS IS             IS IS NM NM SC SC       SC
TSTMS                              IS IS                IS SC SC IS            
MIX HGT             <1 <1 <1 <1  2  4  3 <1 <1 <1 <1 <1  3  5  2 <1            
T WIND DIR          NW  N NE NE  E  S  S SE  S  S  S  S  W NW SW SW            
T WIND SPD           3  2  2  3  4  3  3  8 11 10 11  8 12 16  6  3            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  1  1  3 10 12 11  4  5  5  5  8 38 68 18  2            
MAX LVORI           10 10 10  9  5  3  3  6  9  9  9  8  3  1  3  7            
STABILITY            F  F  F  C  C  C  C  F  F  F  F  A  C  C  B  F            
CEILING              None   200   200  1900  1600   100  1100  8600  None      
STA PRES            27.36 27.34 27.36 27.31 27.32 27.30 27.29 27.24            


Date           09/21Tue 09/22/26Wed 09/23/26Thu 09/24/26Fri 09/25/26
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       84      59      74      55      67      51      67      50      70
TEMP          81 70 62 61 69 65 58 56 63 59 54 53 64 58 52 52 66 60
DEWPT         68 66 62 61 67 63 58 56 62 59 53 53 61 58 52 52 59 57
RH            65 87100100 93 93100100 97100 96100 90100100100 78 90
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR           90      70      80      70      60      30      40      20      20
RAIN SHWRS    SC  O NM SC SC  O NM SC NM SC SC IS SC SC IS    IS IS
TSTMS         IS SC IS       SC IS    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