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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EDT Wed Apr 22 2026

VAZ012-222000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
501 AM EDT Wed Apr 22 2026

Date             Wed 04/22/26            Thu 04/23/26            Fri 04/24/26
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                 74          47          78          49          79
TEMP             51 68 72 72 63 56 50 47 52 73 77 75 67 57 52 50 53 73 77 78 70
DEWPT            38 39 39 38 38 39 37 37 39 44 43 43 43 44 42 41 43 44 43 43 44
MAX/MIN RH                   27          68          30          76          29
RH               61 34 30 29 39 53 61 68 61 35 30 32 42 62 69 71 69 35 30 29 39
WIND DIR          W  W  W NW NW NW  W NW  W NW NW  W  W  W  W  W  W  W  W  W  W
WIND SPD          6  8  6  6  3  2  2  2  2  3  3  3  2  1  1  2  2  2  3  3  2
WIND GUST           19 18 17                                                   
CLOUDS           B1 B1 B2 B1 FW FW CL CL FW CL FW SC FW FW FW FW FW FW SC SC SC
CLOUDS(%)        58 61 70 65 24 13  4  5 10  2 22 26 11  9 14 22 19 19 39 31 29
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     20           5           5           5           5
MIX HGT          <1  5  6  7 <1 <1 <1 <1 <1  5  7  5 <1 <1 <1 <1 <1  8  9  8 <1
T WIND DIR        W  W  W  W NW  W  W  W  W NW  W  W  W  W  W  W  W  W  W  W  W
T WIND SPD       10 32 26 20  6  3  5  5  4 16 11 11  4  4  4  4  3 12 14 11  4
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI               8128118 96  3  2  3  3  4 99 98 66  2  2  2  2  3116148107  2
MAX LVORI         3  1  1  1  2  2  3  3  3  1  1  1  2  3  3  3  3  1  1  1  2
STABILITY         C  C  C  C  G  G  G  G  A  A  A  A  G  G  G  G  A  A  A  A  G
CEILING             17300  None  None  None  None  None  None  None  None  None
STA PRES            27.34 27.29 27.30 27.31 27.32 27.24 27.24 27.21 27.21 27.15


Date          Sat 04/25/26Sun 04/26/26Mon 04/27/26Tue 04/28/26
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       53      74      47      72      45      70      52      74
TEMP          56 56 71 64 52 50 69 62 49 48 68 62 54 54 71 65
DEWPT         47 49 52 51 49 47 44 43 43 42 44 44 47 50 54 50
RH            72 77 51 63 89 89 40 50 80 80 42 52 77 86 55 58
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC B1 B2 OV B2 B1 B1 B1 B1 SC B1 B1 B1 B2 B2 B2
POP 12HR           30      90      40      30      20      30      70      80
RAIN SHWRS    IS SC NM  O SC SC SC SC IS IS IS SC SC NM  O NM
TSTMS                  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