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

VAZ012-180800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
931 PM EDT Thu Sep 17 2026

Date           09/17/26      Fri 09/18/26            Sat 09/19/26            Sun
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          85          62          80          61
TEMP                66 65 64 64 78 83 82 71 66 65 64 64 71 77 80 71 64 63 62 63
DEWPT               63 64 63 64 68 67 67 68 66 65 64 64 67 67 67 67 64 63 62 63
MIN/MAX RH                  100          54         100          64         100
RH                  90 97 97100 71 59 61 90100100100100 87 71 65 87100100100100
WIND DIR            NW NW NW  W NW NW NW  N  N  N  N  N SE SE SE SE SE  S  S  S
WIND SPD             1  1  2  2  2  2  2  1  0  0  0  0  1  1  1  2  2  2  1  1
CLOUDS              SC FW FW FW SC SC B1 SC B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 SC
CLOUDS(%)           35 16 15 19 39 46 61 50 51 64 56 77 71 66 66 56 66 67 58 50
VSBY                10 10  1  1 10  7  6 10  7 10 10  7  7  6  6 10            
POP 12HR                     10          40          20          50           5
RAIN SHWRS                         IS SC    IS       IS IS SC SC             IS
TSTMS                              IS SC                   SC SC               
Obvis                     PF PF                                                
MIX HGT             <1 <1 <1 <1  3  5  3 <1 <1 <1 <1 <1  2  4  3 <1            
T WIND DIR           W  W  W  W NW NW NW NW  W  N  E SE SE SW SE  S            
T WIND SPD           3  3  5  5 14  9 12  5  3  2  4  5  5  4  6 10            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  3  6 59 51 40  3  2  1  2  4 15 17 24  5            
MAX LVORI            7  8  8  8  3  1  1  6 10 10  9  9  5  3  2  5            
STABILITY            G  G  G  B  B  B  C  F  F  F  F  C  C  C  C  F            
CEILING                    None  None  None  None   200   200  1700   900      
STA PRES                  27.42 27.40 27.33 27.35 27.34 27.35 27.31            


Date           09/20Mon 09/21/26Tue 09/22/26Wed 09/23/26Thu 09/24/26
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       83      61      84      59      76      54      69      50      70
TEMP          83 71 63 63 79 71 62 61 71 66 58 55 64 61 54 51 64 60
DEWPT         67 67 63 63 67 67 62 61 67 64 58 55 63 60 54 51 60 59
RH            59 87100100 67 87100100 87 93100100 97 97100100 87 96
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B2 B1 SC B1 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR           60      30      80      40      70      50      40      20      20
RAIN SHWRS    IS NM SC    SC  O SC IS SC NM SC IS SC SC IS IS IS IS
TSTMS            SC IS    IS 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