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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sat Sep 19 2026

VAZ046-200800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
401 PM EDT Sat Sep 19 2026

Date           09/19/26      Sun 09/20/26            Mon 09/21/26            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                 65          87          67          80          63
TEMP          79 75 69 68 66 66 77 84 86 76 71 69 68 67 74 78 79 73 67 65 64 63
DEWPT         66 67 66 65 64 65 67 69 69 71 70 69 68 67 68 67 67 66 65 65 64 63
MIN/MAX RH                   95          56         100          66         100
RH            64 76 90 90 93 97 71 61 57 85 97100100100 82 69 67 79 93100100100
WIND DIR       E  E  E SE  S  S  S SW SW  S SW SW  N NE NE NE NE NE NE NE NE NE
WIND SPD       4  3  3  3  3  4  8  8  6  4  3  3  3  8  9  9  9  9  6  5  6  8
CLOUDS        SC SC B1 B1 SC SC B1 SC SC B1 B1 SC SC SC B1 B2 B2 B2 B2 OV OV B2
CLOUDS(%)     38 33 51 51 49 48 56 32 46 56 54 27 34 48 63 71 78 81 85 89 89 83
VSBY          10 10 10 10  8  9 10 10 10 10  9  7  3  3 10 10 10 10            
POP 12HR                      5          30          10          40          70
RAIN SHWRS                            IS                   SC SC NM NM SC SC NM
TSTMS                                 IS                   IS SC IS          IS
MIX HGT        4 <1 <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  2  2  2 <1            
T WIND DIR    SE  E SE  S  S  S SW SW SW SW SW SW NW NE NE NE NE NE            
T WIND SPD     5  3 14 17 10 10 11  9 10  6 12  4  1 12 16 16 16 14            
DISPERSION       VP VP VP VP             VP VP VP VP             PR PR PR PR   
ADI           25  2  7  8  5 11 23 45 44  5  6  2  1 13 33 34 33 13            
MAX LVORI      2  4  5  5  6  6  3  1  1  5  7  9 10  5  3  3  3  4            
STABILITY      B  G  F  F  F  B  D  B  B  E  F  G  G  B  D  D  D  D            
CEILING              None  None  None  None  None  None   400   700   400      
STA PRES            29.34 29.32 29.31 29.21 29.23 29.25 29.33 29.34            


Date           09/22Wed 09/23/26Thu 09/24/26Fri 09/25/26Sat 09/26/26
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       72      58      62      56      65      54      71      53      72
TEMP          70 65 61 58 61 59 57 56 63 60 55 55 68 63 55 54 70 63
DEWPT         68 65 61 58 60 59 57 56 61 60 55 54 57 56 52 51 55 55
RH            93100100100 97100100100 93100100 96 68 78 90 90 59 75
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC SC
POP 12HR           70      70      50      50      40      20      20      10      10
RAIN SHWRS    NM NM NM NM SC SC SC SC SC IS IS    IS IS            
TSTMS         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