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

VAZ046-172000-
RAWS 441101
37.39N  78.80W Elev. 804 ft
131 PM EDT Thu Sep 17 2026

Date             Thu 09/17/26            Fri 09/18/26            Sat 09/19/26
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                 92          68          90          65          79
TEMP                   90 88 78 74 72 71 71 85 90 85 76 71 70 67 66 71 76 79 75
DEWPT                  66 68 70 70 69 69 70 71 71 72 72 70 68 66 64 64 66 66 67
MAX/MIN RH                   45          95          53          97          64
RH                     45 52 76 87 90 93 97 63 54 65 87 97 93 97 93 79 71 64 76
WIND DIR               SW SW SW SW  W NW  N NE NE NE NE NE NE NE NE NE NE  E  E
WIND SPD                5  5  3  3  3  3  2  4  4  5  4  3  4  6  8  8  5  5  3
CLOUDS                 FW B1 B1 SC SC SC FW FW SC B2 B1 B2 B2 B2 B2 B2 B1 B2 B1
CLOUDS(%)              19 67 68 45 27 31 25 17 38 72 66 84 79 72 75 78 67 70 55
VSBY                    7  6 10 10 10  6  6 10  7  6  6  6  7  7 10 10 10 10 10
POP 12HR                     50          10          60          60          10
RAIN SHWRS             IS SC                   IS NM SC SC SC IS               
TSTMS                  IS SC                   IS SC IS                        
MIX HGT                 6  2 <1 <1 <1 <1 <1  3  5  3 <1 <1 <1 <1 <1  2  3  3 <1
T WIND DIR             NW  W  S  W  W  W  N NE  W NE NE  N  N NE NE NE  E  E  E
T WIND SPD              3  8  3  3  3  2  0  5  2  3 13 10  4 11 10  5  3  3  9
DISPERSION                   VP VP VP VP             VP VP VP PR             VP
ADI                    24 17  2  2  2  1  0 23 12  8  9  5  3  8 12 10  8  8  4
MAX LVORI               2  2  4  6  7  7  8  2  2  3  5  7  8  6  5  4  3  3  4
STABILITY               B  D  F  F  G  G  B  B  B  D  E  F  E  E  D  D  D  D  F
CEILING                    None  None  None  None  2700  1300  2500  1500  2700
STA PRES                  29.42 29.42 29.38 29.38 29.32 29.37 29.38 29.40 29.36


Date          Sun 09/20/26Mon 09/21/26Tue 09/22/26Wed 09/23/26
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       65      86      66      83      64      74      59      69
TEMP          68 67 83 79 70 68 82 72 67 64 71 68 62 59 66 64
DEWPT         65 67 71 71 69 68 70 69 67 64 68 67 62 59 63 63
RH            90100 67 77 97100 67 90100100 90 97100100 90 97
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 SC SC B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR            0      20      30      50      60      60      50      30
RAIN SHWRS             IS SC       SC NM SC SC NM SC SC IS SC
TSTMS                  IS 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