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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Sat May 16 2026

VAZ018-170800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
401 PM EDT Sat May 16 2026

Date           05/16/26      Sun 05/17/26            Mon 05/18/26            Tue
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                 61          89          64          91          65
TEMP          81 73 66 63 61 65 81 87 87 77 70 66 64 69 85 90 89 80 73 68 65 70
DEWPT         59 59 56 54 53 57 60 58 59 60 58 56 55 60 62 59 57 57 56 55 54 59
MIN/MAX RH                   76          36          76          33          71
RH            47 62 70 72 75 75 49 38 39 56 66 70 73 73 46 35 34 45 55 63 68 68
WIND DIR       W  W  W  W NW  W  W  W  S  S SW SW SW  N  S  S  S  S SW SW SW SW
WIND SPD       4  2  2  2  2  2  2  3  2  1  1  1  1  0  2  5  6  4  3  3  2  1
WIND GUST     16                12                      12 16 20 17 14 14      
CLOUDS        B1 B1 SC SC SC SC FW FW FW FW CL CL FW SC CL FW FW FW FW FW SC FW
CLOUDS(%)     67 62 50 49 43 44 12 18 13 12  5  3 12 35  3 17 15 16 17 24 27 23
VSBY          10 10 10 10  8 10 10 10 10 10  9 10  8 10 10 10 10  9            
POP 12HR                     10           5           0           5           5
MIX HGT        5 <1 <1 <1 <1 <1  4  6  6 <1 <1 <1 <1 <1  4  8  8 <1            
T WIND DIR    SW SW  N NW NW  W  W SW  S  S  S SW SW  W  W  S  S  S            
T WIND SPD    14  5 11  2  3  2  4  8 10 11  5  5  2  4  3  6 11 12            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI           60  3  5  1  2  2 22 62 81  5  3  3  1  4 18 62 92  6            
MAX LVORI      1  3  3  3  4  3  2  1  1  3  3  3  3  3  2  1  1  2            
STABILITY      C  F  F  F  F  A  A  A  A  G  G  G  G  A  A  A  B  F            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.84 27.88 27.94 27.91 27.95 27.99 28.03 27.98            


Date           05/19Wed 05/20/26Thu 05/21/26Fri 05/22/26Sat 05/23/26
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       93      66      87      65      75      56      69      55      71
TEMP          90 82 70 70 87 78 68 67 74 68 60 59 66 63 59 58 68 65
DEWPT         55 55 52 58 61 62 60 61 62 57 52 52 56 53 52 53 58 56
RH            31 40 53 66 42 58 76 81 66 68 75 78 70 70 78 83 70 73
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC FW B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR            5       0      70      40      80      60      70      60      60
RAIN SHWRS                SC NM SC SC NM  O NM SC NM NM NM NM NM NM
TSTMS                     IS SC IS    IS SC          IS          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