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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun May 17 2026

VAZ024-180800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
801 PM EDT Sun May 17 2026

Date           05/17/26      Mon 05/18/26            Tue 05/19/26            Wed
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                 63          92          64          94          65
TEMP                72 68 64 68 83 91 91 83 76 71 66 70 84 92 92 86 77 70 66 70
DEWPT               60 60 61 62 63 63 63 62 59 59 58 60 63 60 59 58 56 56 56 59
MIN/MAX RH                   90          39          78          32          72
RH                  66 76 90 81 51 40 40 49 56 66 75 71 49 34 33 39 48 61 70 68
WIND DIR             N  N  N  N SW  S  S  S SW SW  N  N SW SW  S  S SW SW  W  W
WIND SPD             0  0  0  0  3  5  6  4  3  2  0  0  2  5  6  4  3  2  1  1
WIND GUST                             17 16                   18 18 13         
CLOUDS              FW CL CL CL CL CL CL FW FW FW SC SC FW FW FW FW FW FW FW FW
CLOUDS(%)            9  4  3  2  1  5  5 20 20 16 30 32 13 15 20 23 18 17 12 13
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10  8  8 10
POP 12HR                      0           0           0           0           0
MIX HGT             <1 <1 <1 <1  3  7  6 <1 <1 <1 <1 <1  4  7  8 <1            
T WIND DIR          SW  W  W  W  W SW SW  S SW SW  W  W  W  W  W SW            
T WIND SPD           2  1  2  1  6  9 12  6  6  3  2  3 12 11 12  3            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  1  1  1  1 30 76 90  3  3  2  1  3 63 98104  2            
MAX LVORI            3  4  6  5  1  1  1  2  3  3  4  4  1  1  1  2            
STABILITY            G  G  G  A  A  A  B  G  G  G  G  A  A  A  B  F            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.64 28.70 28.73 28.68 28.70 28.70 28.71 28.63            


Date           05/20Thu 05/21/26Fri 05/22/26Sat 05/23/26Sun 05/24/26
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       91      62      74      54      71      56      77      61      83
TEMP          90 82 70 63 71 68 59 56 67 67 61 58 74 72 65 63 80 76
DEWPT         63 67 65 60 59 55 53 52 56 57 56 57 64 65 62 62 66 67
RH            41 61 84 90 66 63 80 86 68 70 84 96 71 79 90 97 62 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR           70      80      80      60      60      70      70      60      70
RAIN SHWRS       NM NM  O  O  O NM NM NM SC NM SC NM NM NM SC SC NM
TSTMS            SC SC IS IS SC          SC          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