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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 PM EDT Fri May 22 2026

VAZ012-230800-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
331 PM EDT Fri May 22 2026

Date           05/22/26      Sat 05/23/26            Sun 05/24/26            Mon
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                 53          69          56          78          57
TEMP          64 60 57 55 54 57 63 67 69 65 61 59 57 59 68 75 78 72 63 60 58 61
DEWPT         56 56 55 54 54 56 60 62 63 62 61 59 57 58 62 62 65 64 62 59 57 60
MIN/MAX RH                  100          79         100          64          97
RH            75 87 93 96100 96 90 84 81 90100100100 96 81 64 64 76 97 96 96 97
WIND DIR      SE SE  E SE SE SE SE SE SE SE SE SE SE  S  S  S  S  S  N  N  N  N
WIND SPD       3  4  4  3  3  3  3  4  4  3  2  1  1  1  1  2  1  1  0  0  0  0
CLOUDS        OV OV OV OV OV OV OV OV OV OV OV B2 B2 B1 B1 OV OV B1 B2 B2 B2 B2
CLOUDS(%)     94100100 99100100 88 92 90 94 88 87 79 56 61 93 93 69 76 71 73 84
VSBY           2  2  2  2  2  3  5  7  5  5  4  3                              
POP 12HR                    100          90          60          80          50
RAIN SHWRS    SC SC  O NM  O  O NM  O  O NM    IS    SC SC  O  O SC SC SC SC  O
TSTMS         IS             IS IS SC SC IS             IS SC SC IS            
MIX HGT        1  1 <1 <1 <1 <1  1  2  2 <1 <1 <1 <1 <1  2  3  3 <1            
T WIND DIR    SE  E  E SE SE SE SE  S  S SE SE  S  S  S SW SW  S  S            
T WIND SPD    10  8 10  4  8  5  9 18 10 11  6  5  4  8  6  8 10  9            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           18  7  9  2  7  6 15 36 22  5  3  3  2 10 21 33 39  4            
MAX LVORI      3  5  6  9  8  8  4  3  3  5  9  9  9  6  3  3  1  4            
STABILITY      B  D  D  F  D  D  B  C  C  F  F  F  F  B  B  B  B  F            
CEILING               200   200   200   500   200   200   700  2200  1700      
STA PRES            27.37 27.36 27.39 27.37 27.39 27.39 27.40 27.34            


Date           05/25Tue 05/26/26Wed 05/27/26Thu 05/28/26Fri 05/29/26
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       78      57      73      57      75      57      75      54      74
TEMP          73 71 62 61 70 69 61 61 72 70 62 60 73 70 60 58 71 68
DEWPT         64 65 61 60 65 64 61 61 64 64 59 59 62 61 57 56 57 56
RH            73 81 97 97 84 84100100 76 81 90 96 68 73 90 93 61 65
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 OV B2 B2 OV OV B2 B2 B2 OV B1 B1 B2 B2 B1 B1 B1 B1
POP 12HR           90      70      90      50      90      30      70      30      50
RAIN SHWRS     O  O NM SC  O  O SC SC  O  O SC SC SC NM SC SC SC SC
TSTMS         IS SC IS    IS SC IS    IS SC       IS SC IS       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