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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Sun Apr 19 2026

VAZ012-192000-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
331 AM EDT Sun Apr 19 2026

Date             Sun 04/19/26            Mon 04/20/26            Tue 04/21/26
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                 56          36          54          27          69
TEMP          42 40 49 54 55 48 43 41 38 38 48 52 54 47 36 30 28 33 57 66 68 61
DEWPT         39 34 30 20 18 19 22 24 27 28 25 20 17 17 20 19 18 20 26 30 34 35
MAX/MIN RH                   22          70          23          68          26
RH            89 79 48 26 23 31 43 50 64 67 40 28 23 30 52 63 66 58 30 26 28 38
WIND DIR      NW NW NW NW NW NW  W  W NW NW NW NW NW NW NW  W  W SW  W  W  W SW
WIND SPD       8 10 10  9  8  4  3  3  4  5  6  6  5  3  2  1  1  1  2  3  3  3
WIND GUST     19    21 20 18                17 17 16                           
CLOUDS        OV OV SC FW CL CL CL FW SC SC FW FW CL CL CL CL FW CL CL SC SC SC
CLOUDS(%)     91 90 47 19  4  5  4  8 27 37 17 10  5  4  4  5  6  4  5 26 33 31
VSBY           9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     10           0           5           0           0
RAIN SHWRS     O                                                               
MIX HGT        2  2  3  5  6 <1 <1 <1 <1  2  3  5  5 <1 <1 <1 <1 <1  3  5  5 <1
T WIND DIR    NW NW NW NW NW NW  W  W  W NW NW NW NW NW NW  W  W SW  W  W  W SW
T WIND SPD    31 27 33 36 26 10  5  9  8 17 21 21 20 11  5  2  2  4  6 12 17  9
DISPERSION    PR             VP VP VP VP             VP VP VP VP             VP
ADI           35 69140200169  5  3  4  4 38 89129131  5  3  1  1  4 29 81114  4
MAX LVORI      4  3  1  1  1  2  2  2  3  3  1  1  1  2  2  3  3  3  2  1  1  2
STABILITY      D  C  B  B  B  F  G  G  F  A  B  B  A  G  G  G  G  A  A  A  A  G
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            27.28 27.29 27.33 27.32 27.38 27.39 27.44 27.44 27.44 27.33


Date          Wed 04/22/26Thu 04/23/26Fri 04/24/26Sat 04/25/26
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       45      74      47      77      49      80      52      75
TEMP          48 51 72 65 51 51 75 68 52 54 78 69 55 56 73 65
DEWPT         37 38 39 39 43 45 44 43 43 44 43 45 46 47 50 49
RH            65 61 30 38 74 80 33 40 71 69 29 42 72 72 44 56
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC FW FW FW FW FW FW FW SC SC B1 B1 B2
POP 12HR            0      20      10      10       0      20      30      70
RAIN SHWRS             IS                      IS IS SC SC NM
TSTMS                                                      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