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

VAZ018-180800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
301 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                 68          87          66          77          64
TEMP          85 75 72 71 70 70 82 87 83 73 70 70 68 67 70 75 77 71 67 67 66 66
DEWPT         67 67 67 67 67 67 70 69 69 69 68 68 66 66 66 67 66 66 64 64 65 65
MIN/MAX RH                   91          55          96          69          99
RH            55 76 84 87 90 90 67 55 63 87 93 93 93 97 87 76 69 84 90 90 97 97
WIND DIR      NW NW NW NW NW NW NW NW NW  N NE  E  E  E  E SE SE SE SE SE  S  S
WIND SPD       4  2  3  3  3  4  4  5  5  2  1  1  2  3  3  3  3  3  2  2  1  1
WIND GUST                       16                                             
CLOUDS        B1 SC SC FW FW SC SC B1 B1 SC B1 B2 B2 B2 B2 B2 B2 B1 B1 B2 B1 B1
CLOUDS(%)     63 46 28 12 19 26 47 64 59 47 69 78 70 73 84 77 73 62 69 74 64 67
VSBY           7 10 10 10  5  2  7  7  6  7  6  6  6  6  6  6  6 10            
POP 12HR                      5          40          50          50           5
RAIN SHWRS    SC                IS SC SC IS SC SC SC SC SC SC SC               
TSTMS         IS                IS SC SC IS                   IS               
MIX HGT        5 <1 <1 <1 <1 <1  3  5  3 <1 <1 <1 <1 <1  1  2  2 <1            
T WIND DIR    NW  W  W  W NW NW NW NW NW NE NE NE  E  E SE  S  S SE            
T WIND SPD    14  4  4  4  6  5  9 13 13  9  4  2  3  6  6  4  5  5            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           45  2  2  2  3  6 36 41 31  4  2  1  2  7 13 10 14  3            
MAX LVORI      1  4  5  6  6  5  3  1  1  5  6  7  7  6  5  4  3  5            
STABILITY      D  F  G  G  G  B  B  D  D  F  F  F  F  C  C  C  C  F            
CEILING              None  None  None  3900  1000   100  1000  1600  1600      
STA PRES            27.97 27.92 27.92 27.85 27.88 27.88 27.90 27.86            


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       85      66      83      64      73      57      66      54      69
TEMP          84 74 68 67 80 71 66 64 71 65 61 57 63 59 56 55 66 60
DEWPT         70 69 66 66 70 68 65 64 69 64 60 57 63 59 56 55 62 60
RH            63 84 93 97 72 90 97100 93 97 97100100100100100 87100
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR           60      20      70      60      70      60      40      30      20
RAIN SHWRS       NM IS    SC NM NM SC SC NM NM SC SC SC SC IS IS IS
TSTMS            SC IS       SC IS       IS          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