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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EDT Sun Sep 20 2026

VAZ018-202000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
631 AM EDT Sun Sep 20 2026

Date             Sun 09/20/26            Mon 09/21/26            Tue 09/22/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 84          65          81          63          72
TEMP             70 77 82 83 76 72 70 68 68 75 79 80 69 66 66 65 64 68 71 69 64
DEWPT            65 69 69 69 67 65 64 62 64 68 70 69 68 65 64 63 63 68 69 68 64
MAX/MIN RH                   63          91          70          99          93
RH               84 76 65 63 74 79 81 81 87 79 74 69 97 97 93 93 97100 93 97100
WIND DIR         SW  W NW SW  W  W  W NW  N SE SE  E  E SE  E  E  E SE  E  E  E
WIND SPD          5  4  6  3  2  2  2  1  1  2  3  3  2  3  2  2  2  3  3  3  5
WIND GUST                                                                    17
CLOUDS           B2 SC B1 B2 SC FW FW FW SC B2 B2 B2 OV OV B2 B2 B2 B2 OV OV OV
CLOUDS(%)        73 47 64 85 34 16 15 10 46 70 80 86 90 90 86 78 84 85 94 94 88
VSBY              6 10 10 10 10  9  6  4  5 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     30          10          80          80          90
RAIN SHWRS             IS SC                IS NM SC  O  O SC SC NM NM  O  O  O
TSTMS                  IS SC                IS SC SC SC IS             SC SC   
Obvis            PF                PF    PF                                    
MIX HGT          <1  3  4  2 <1 <1 <1 <1 <1  2  3  1 <1 <1 <1 <1 <1  1  2  1  1
T WIND DIR       SW  W  W SW SE SW  W  W  N SE SE  E  E  E NE NE NE  E NE NE NE
T WIND SPD        8  9  9  6  4  3  1  3  1  5  8  6  9  5  5  3  8  8  9  9 10
DISPERSION                   VP VP VP VP             VP VP VP VP             PR
ADI               8 33 26 19  2  2  1  2  1 15 25  9  4  3  3  2  8 14 19 14  7
MAX LVORI         5  3  3  2  3  4  6  5  7  4  3  3  9  8  6  7  8  5  5  5  8
STABILITY         B  B  D  C  G  G  G  G  A  C  C  C  F  F  F  F  C  C  C  C  E
CEILING               700  5000  None  None  2700   700   300     0   100   100
STA PRES            27.79 27.72 27.74 27.76 27.78 27.79 27.85 27.84 27.88 27.90


Date          Wed 09/23/26Thu 09/24/26Fri 09/25/26Sat 09/26/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       57      63      53      64      51      70      50      70
TEMP          62 58 62 57 57 54 62 57 55 52 67 59 53 51 69 59
DEWPT         60 56 62 57 55 53 61 55 52 50 58 53 49 48 55 52
RH            93 93100100 93 96 97 93 90 93 73 80 86 89 61 78
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC
POP 12HR           80      80      70      50      20      10       5      10
RAIN SHWRS     O NM  O NM NM NM SC 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