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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Mon Apr 27 2026

VAZ024-280800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
431 PM EDT Mon Apr 27 2026

Date           04/27/26      Tue 04/28/26            Wed 04/29/26            Thu
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                 43          68          50          71          47
TEMP          71 63 54 49 46 47 55 61 68 64 58 54 51 53 63 67 69 66 59 55 50 48
DEWPT         41 41 40 40 40 42 46 49 51 53 53 52 51 53 58 60 61 57 53 48 43 42
MIN/MAX RH                   84          56         100          73          82
RH            34 44 59 71 79 83 72 65 54 67 83 93100100 84 78 76 73 80 77 77 80
WIND DIR      SE SE SE SE  E SE SW  S  S SE  S SW SE SE  S  S  S  W  W NW NW NW
WIND SPD       5  3  2  2  2  2  4  5  4  2  1  1  1  1  2  5  5  4  4  3  4  5
WIND GUST                                                        16 16 14 14 19
CLOUDS        FW SC SC SC SC B2 B2 B2 B1 SC B1 B1 B2 OV OV OV OV B1 B1 SC SC FW
CLOUDS(%)     18 36 26 37 45 85 82 79 61 43 55 63 73 92 92100100 60 60 39 32 16
VSBY          10 10 10 10 10 10  3  3  6  3  5  2  3 10  2  3  3 10            
POP 12HR                     20          70          40         100          40
RAIN SHWRS                   SC NM SC    IS    SC SC  O  O  O  O SC SC         
TSTMS                                                      SC SC               
MIX HGT        4 <1 <1 <1 <1  1  2  2  3 <1 <1 <1 <1  1  2  2  2  1            
T WIND DIR    SE SE SE SE  S  S  S  S  S SE NE  N  E  S  S  S  S  W            
T WIND SPD    10  6  5 11  5 10  9  6  4  1  1  2  1  2  6 14  8 11            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           57  3  3  5  3 15 24 20 14  1  1  1  1  3 14 31 15  8            
MAX LVORI      1  2  3  3  5  4  3  3  2  4  6  7 10  9  4  3  4  3            
STABILITY      A  G  G  F  F  B  B  C  C  F  F  F  F  B  B  D  D  E            
CEILING              None  7800  1600  1100  None   200   100  2800  None      
STA PRES            28.68 28.66 28.63 28.56 28.52 28.44 28.34 28.19            


Date           04/30Fri 05/01/26Sat 05/02/26Sun 05/03/26Mon 05/04/26
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       69      40      70      43      62      37      69      42      75
TEMP          66 60 45 45 67 62 49 46 59 56 43 42 65 62 48 47 73 68
DEWPT         35 33 34 36 36 38 38 38 39 35 31 32 34 35 36 39 41 42
RH            32 36 65 70 32 41 66 73 47 45 62 67 31 36 63 74 31 39
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW CL FW SC B1 B1 B1 B1 B1 SC FW FW SC FW FW FW SC
POP 12HR           10       5      20      40      40      10      10       5      10
RAIN SHWRS                   IS SC SC SC SC                        
TSTMS                        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