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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1131 AM EDT Thu May 21 2026

VAZ018-212000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
1131 AM EDT Thu May 21 2026

Date             Thu 05/21/26            Fri 05/22/26            Sat 05/23/26
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                 80          57          61          52          63
TEMP                   78 70 66 60 60 58 57 59 60 60 57 57 55 54 53 58 61 63 61
DEWPT                  67 66 61 58 56 55 55 59 59 59 56 55 53 53 53 58 60 62 60
MAX/MIN RH                   66         100          87         100          88
RH                     69 87 84 93 87 90 93100 96 96 96 93 93 96100100 97 97 97
WIND DIR               SE NW  E  E  E  E  E  E  E  E  E  E  E  E  E SE SE SE SE
WIND SPD                2  2  3  3  3  3  3  4  4  4  4  4  3  3  3  3  3  2  2
WIND GUST                    16 14 13 13 14 16 14 14 19 18 16 16 16 13         
CLOUDS                 B2 OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2
CLOUDS(%)              84100100 92 94 90 98 93 95 94 94 90 90 90 97 97 88 89 87
VSBY                    8  4  3  2  2  2  2  2  2  2  2 10 10 10 10 10 10 10 10
POP 12HR                    100         100         100          80         100
RAIN SHWRS             NM  O  O NM  O  O  O NM  O SC SC  O  O  O  O  O SC SC SC
TSTMS                  NM SC IS                IS IS                           
MIX HGT                 1  1 <1  1 <1 <1 <1  1  1  1  1  1  1  1  1  1  1  1 <1
T WIND DIR              S NE NE NE NE NE  E  E  E  E  E  E  E  E  E  E  E SE SE
T WIND SPD              2 13 10 11  9  8  8 13 12 12 10 11  8  5  6  5  5  6  6
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                     4 19  7  5  4  4  9 24 24 19  7  8  4  3 10  8  9 10  3
MAX LVORI               4  4  5  5  5  6  6  5  5  5  6  6  6  8  8  8  8  7  8
STABILITY               B  B  E  F  F  F  B  C  C  C  E  E  F  F  B  B  B  B  F
CEILING                     100   100   100   200   100   100   100   100   100
STA PRES                  27.85 27.90 27.90 27.95 27.94 27.95 27.96 27.98 27.95


Date          Sun 05/24/26Mon 05/25/26Tue 05/26/26Wed 05/27/26
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       59      80      64      80      65      80      64      80
TEMP          62 63 79 73 67 67 78 73 68 68 79 74 68 67 79 73
DEWPT         58 60 68 64 60 64 68 66 62 63 68 66 62 63 66 64
RH            87 90 69 73 78 90 71 79 81 84 69 76 81 87 64 73
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B1 B2 B2 OV B2 B2 OV OV B2 B1 B2 B2
POP 12HR           40      70      40      90      40      90      40      70
RAIN SHWRS    SC    IS NM SC    SC  O SC SC  O  O SC IS NM NM
TSTMS                  SC IS    IS SC IS       SC          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