National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Mon Oct 19 2026

VAZ012-192000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
1001 AM EDT Mon Oct 19 2026

Date             Mon 10/19/26            Tue 10/20/26            Wed 10/21/26
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                 65          34          69          36          67
TEMP                54 62 62 48 42 40 37 36 60 68 68 51 45 42 39 37 58 66 67 54
DEWPT               32 28 31 34 33 33 31 29 36 33 38 39 38 37 36 36 45 42 42 42
MAX/MIN RH                   27          79          27          98          38
RH                  43 27 31 58 70 76 79 75 41 27 33 63 76 82 89 96 62 42 40 64
WIND DIR            NE  N  N  N  N  N  N  N  N  N  N  N NW  N  N  N NE  N  N NW
WIND SPD             1  3  3  2  1  1  1  1  1  2  1  2  1  0  0  0  1  1  1  1
CLOUDS              CL CL CL CL CL CL CL CL CL FW FW FW CL CL FW FW CL CL CL CL
CLOUDS(%)            0  0  0  0  0  0  0  2  3 20 14 12  5  3  6  7  3  4  2  1
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0           0           0           0
MIX HGT              1  3  2 <1 <1 <1 <1 <1  1  3  2 <1 <1 <1 <1 <1  1  3  3 <1
T WIND DIR          NE  N  N NW NW NW NW  W  N  N  N NW NW NW  W  W  N  N NW NW
T WIND SPD           4  6 10  4  3  4  3  3  6 11 13  8  4  3  2  2  3  6  9  5
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                  7 24 30  2  2  2  2  3 12 45 44  4  2  2  1  2  6 29 39  3
MAX LVORI            2  2  1  3  3  4  4  4  2  1  1  3  4  5  7  8  3  2  1  3
STABILITY            A  B  A  G  G  G  G  A  A  B  A  G  G  G  G  A  A  A  A  G
CEILING                    None  None  None  None  None  None  None  None  None
STA PRES                  27.49 27.48 27.45 27.45 27.42 27.43 27.40 27.41 27.35


Date          Thu 10/22/26Fri 10/23/26Sat 10/24/26Sun 10/25/26
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       35      66      36      65      35      62      34      67
TEMP          41 37 66 52 40 38 64 49 40 37 60 49 39 37 64 53
DEWPT         40 36 39 39 37 36 46 43 40 37 43 41 38 36 45 45
RH            96 96 37 61 89 92 52 80100100 53 74 96 96 50 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    CL FW CL CL CL CL CL CL CL FW SC FW CL FW FW FW
POP 12HR            0       0       0       0       0       0       0       0

$$


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