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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Tue Apr 21 2026

VAZ018-220800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
901 PM EDT Tue Apr 21 2026

Date           04/21/26      Wed 04/22/26            Thu 04/23/26            Fri
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                 51          76          53          81          55
TEMP                54 54 52 57 68 71 72 65 58 55 53 57 73 78 79 69 62 58 55 58
DEWPT               35 37 38 39 41 45 44 44 43 42 43 46 49 48 46 46 46 45 45 46
MIN/MAX RH                   58          37          69          32          72
RH                  48 52 59 51 37 39 37 46 57 61 69 67 43 35 31 44 56 62 69 64
WIND DIR             W  W  W  W  W  W  W  W  W  W  W  W NW NW NW NW  W  W  W  W
WIND SPD             5  6  8  9 13 12 11  6  4  4  4  4  5  5  5  3  2  2  3  2
WIND GUST           17 18 19 24 31 28 25 17             16                     
CLOUDS              SC SC SC B1 B2 B2 B1 SC FW FW FW FW FW SC SC FW FW FW FW FW
CLOUDS(%)           49 37 33 54 82 75 58 34 13  8 10  9  7 33 27 12  8  7 14 14
VSBY                10 10 10 10 10  7 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0          20           5          10           5
RAIN SHWRS                         IS                                          
MIX HGT             <1 <1 <1  1  4  5  4 <1 <1 <1 <1 <1  5  6  7 <1            
T WIND DIR          SW SW  W  W  W  W  W  W  W  W  W  W NW NW  W NW            
T WIND SPD           5  5  6 11 34 28 24  9  4  5  5  5 18 11 12 10            
DISPERSION          PR PR PR             PR VP VP VP             VP VP VP VP   
ADI                  4  3  5 16132 84 69  4  2  3  3  6108 90104  5            
MAX LVORI            2  2  3  2  1  1  1  2  3  3  3  3  1  1  1  2            
STABILITY            E  F  E  B  C  D  D  F  F  F  F  A  A  A  A  G            
CEILING                    None 15400  None  None  None  None  None  None      
STA PRES                  27.85 27.83 27.81 27.82 27.81 27.83 27.75            


Date           04/24Sat 04/25/26Sun 04/26/26Mon 04/27/26Tue 04/28/26
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       82      57      75      53      70      49      72      52      71
TEMP          80 72 61 59 72 66 56 54 68 62 52 50 68 64 54 53 65 64
DEWPT         42 47 49 51 56 53 50 49 49 45 44 44 47 45 45 47 53 48
RH            26 41 65 75 57 63 80 83 51 54 74 80 47 50 71 80 65 56
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC B1 B1 B2 OV B2 B1 B1 B1 SC B1 B1 B1 B1 B1 B2 B1
POP 12HR           10      30      80      60      30      30      30      50      70
RAIN SHWRS          SC SC NM  O NM SC SC SC SC IS IS SC SC SC NM SC
TSTMS                        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