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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 PM EDT Tue May 12 2026

VAZ024-130800-
RAWS 441631
37.63N  79.51W Elev. 865 ft
1031 PM EDT Tue May 12 2026

Date           05/12/26      Wed 05/13/26            Thu 05/14/26            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                 49          76          47          66          42
TEMP                58 54 51 53 69 74 72 65 58 53 48 48 59 64 65 58 51 48 45 50
DEWPT               43 41 41 43 50 54 57 56 53 49 45 44 43 42 42 40 40 39 38 39
MIN/MAX RH                   70          48          90          42          81
RH                  57 61 68 69 51 50 59 73 83 86 89 86 55 45 43 51 66 71 76 66
WIND DIR            SW SW SW SW SW SW SW SW  W NW  W NW NW NW NW NW NW NW NW NW
WIND SPD             3  4  4  3  5  6  5  3  2  2  3  6 10 10 11  6  3  2  2  2
WIND GUST           14 17 16    16 17 16 13          19 23 21 24 23            
CLOUDS              FW CL CL CL SC B1 B2 B2 SC FW CL CL SC B1 SC FW FW FW CL CL
CLOUDS(%)            8  5  4  4 27 57 83 76 44 17  4  3 44 55 49 20 11  7  4  3
VSBY                10 10 10 10 10 10  9 10  6  6 10 10  8  9  9  9            
POP 12HR                      0          50          40           0           0
RAIN SHWRS                         SC SC SC IS                                 
TSTMS                              IS SC IS                                    
MIX HGT             <1 <1 <1  1  3  4  2 <1 <1 <1 <1  2  5  6  6  2            
T WIND DIR           S  S  S SW SW SW  W  S  W NW NW NW NW NW NW NW            
T WIND SPD           5  5  6 11 17 17  9  5  6 12  9 13 19 18 23 12            
DISPERSION          VP VP VP             VP VP VP VP             PR VP VP VP   
ADI                  3  3  3 16 76 67 24  3  3  6  4 40116 81100  6            
MAX LVORI            3  3  3  3  1  1  2  3  5  5  5  4  1  1  1  2            
STABILITY            G  F  F  A  A  C  C  F  F  G  G  B  B  C  C  F            
CEILING                    None  None  4300  None  None  None  None  None      
STA PRES                  28.54 28.49 28.37 28.32 28.32 28.36 28.38            


Date           05/15Sat 05/16/26Sun 05/17/26Mon 05/18/26Tue 05/19/26
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       76      52      87      60      90      63      92      66      93
TEMP          73 69 55 56 85 80 65 64 88 82 68 66 90 85 71 69 91 85
DEWPT         43 47 44 48 59 61 58 59 62 63 59 60 63 64 61 62 63 64
RH            34 45 66 74 41 52 78 84 42 53 73 81 41 50 71 78 40 50
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC FW SC B1 SC SC SC SC SC FW FW FW FW FW B1
POP 12HR            0       0      20      30      30      10      10       5      30
RAIN SHWRS                   IS SC       SC                      SC
TSTMS                        IS SC       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