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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
258 AM EDT Sun Sep 13 2026

VAZ046-140800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
258 AM EDT Sun Sep 13 2026

Date           09/12/26      Sun 09/13/26            Mon 09/14/26            Tue
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          89          67          83          55
TEMP                      69 70 81 87 88 78 73 70 68 69 79 81 83 75 66 61 57 57
DEWPT                     69 70 73 72 71 71 69 68 66 67 68 67 64 61 57 53 51 51
MIN/MAX RH                  100          57          95          53          85
RH                       100100 77 61 57 79 87 93 93 93 69 63 53 62 73 75 80 80
WIND DIR                  SW SW  W NW NW  E NW  W  W  N NE NE NE NE NE NE  N  N
WIND SPD                   3  4  5  4  4  2  2  3  3  4  9  8  8  6  5  4  4  4
CLOUDS                    B1 B1 SC SC FW SC FW SC FW FW FW SC FW FW FW FW FW FW
CLOUDS(%)                 69 55 30 29 25 30 16 33 10  9 25 38  9  7  9 13 23 18
VSBY                       2  3 10 10 10 10  9  9  7 10 10 10 10 10 10 10 10 10
POP 12HR                     70          20           0           5           0
RAIN SHWRS                IS                                                   
TSTMS                                                                          
MIX HGT                   <1 <1  2  5  4 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1
T WIND DIR                NW SW  N  N  W  S  W  W  W NW  N  N  N NE NE NE  N  N
T WIND SPD                 5  1  4  4  2  2  2  3  4  4 13 10 11 14  9  8  3  5
DISPERSION                VP             VP VP VP VP             PR PR VP VP   
ADI                        3  1 14 24 11  1  1  2  2  5 46 57 67  7  4  4  2  6
MAX LVORI                  9 10  4  2  2  4  6  7  6  6  3  1  1  3  3  4  5  4
STABILITY                  F  D  B  B  B  G  G  G  G  B  C  B  B  F  F  F  F  B
CEILING                     300  None  None  None  None  None  None  None  None
STA PRES                  29.23 29.27 29.20 29.24 29.26 29.35 29.38 29.50 29.56


Date           09/15Wed 09/16/26Thu 09/17/26Fri 09/18/26Sat 09/19/26
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       81      56      86      60      89      63      90      64      87
TEMP          79 72 59 59 83 76 64 62 86 78 67 65 88 80 69 65 85 76
DEWPT         58 58 57 57 64 63 60 60 63 62 61 61 66 66 64 63 66 66
RH            49 61 93 93 53 64 87 93 46 58 81 87 48 62 84 93 53 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW CL FW CL FW CL CL FW FW FW SC SC SC SC B1
POP 12HR            0       0       0       0       0       0      20      10      30
RAIN SHWRS                                           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