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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Tue May 19 2026

VAZ024-200800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
731 PM EDT Tue May 19 2026

Date           05/19/26      Wed 05/20/26            Thu 05/21/26            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                 67          94          63          70          54
TEMP             87 77 73 69 71 87 93 92 82 74 69 66 63 69 70 66 61 57 56 54 54
DEWPT            60 59 57 57 59 64 61 62 65 65 64 64 63 65 63 61 57 56 55 54 54
MIN/MAX RH                   68          35         100          78         100
RH               40 54 57 66 66 46 35 37 56 74 84 93100 87 78 84 87 96 96100100
WIND DIR          N SW SW  W  N  W  W  S NW  N  N  N  N  E  E NE NE NE NE NE  E
WIND SPD          0  2  2  1  0  2  4  4  2  1  0  0  2  3  5  5  4  2  1  2  2
WIND GUST                                                        16            
CLOUDS           FW SC SC FW CL CL FW FW SC B2 B2 B2 OV B2 OV OV OV OV OV OV B2
CLOUDS(%)        24 26 34 14  4  2  9 19 43 70 75 77 91 85 91 91 93 93 92 92 87
VSBY             10 10 10 10 10 10 10 10 10 10  5  2  3  6  6  3  1  1  2  2  1
POP 12HR                      5          20          70          90          90
RAIN SHWRS                                  NM SC SC NM NM  O  O  O  O  O  O  O
TSTMS                                       IS          IS IS IS               
MIX HGT          <1 <1 <1 <1 <1  5  8  6 <1 <1 <1 <1  1  2  2  2  1            
T WIND DIR       SW  S SW  W  W  W  W  W  N NE  E  E  E NE NE NE NE            
T WIND SPD       11  4  4  2  2 14  8  5  2  9  6  6 10 14 13 12  8            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI               5  2  2  1  2 88 77 26  1  4  3  3 15 32 32 29  5            
MAX LVORI         2  2  3  3  3  1  1  2  3  3  5  6  5  4  3  3  5            
STABILITY         G  F  G  G  A  A  A  C  F  F  F  F  B  B  C  C  E            
CEILING              None  None  None  None  2200   300   400  1100  1200      
STA PRES            28.60 28.60 28.60 28.53 28.58 28.60 28.67 28.68            


Date           05/22Sat 05/23/26Sun 05/24/26Mon 05/25/26Tue 05/26/26
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       62      54      74      60      80      61      82      63      83
TEMP          60 62 59 56 71 71 64 62 79 75 66 64 80 76 68 65 80 77
DEWPT         57 57 56 56 63 64 61 61 66 67 63 62 67 68 65 63 67 68
RH            90 84 90100 76 79 90 97 64 76 90 93 65 76 90 93 65 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR           80      60      60      50      60      50      70      50      60
RAIN SHWRS     O SC NM SC SC NM SC IS IS NM SC SC SC NM SC SC SC NM
TSTMS            IS          SC 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