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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Wed May 13 2026

VAZ046-140800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
231 AM EDT Wed May 13 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                 50          77          50          67          45
TEMP                      51 54 68 75 74 67 60 56 51 52 61 64 65 62 53 48 45 50
DEWPT                     41 42 46 49 51 54 55 54 49 47 43 42 41 40 40 41 40 41
MIN/MAX RH                   68          40          94          40          82
RH                        68 64 45 40 44 63 84 93 93 83 51 45 41 44 61 77 82 71
WIND DIR                  SW SW SW SW SW SW  W  W  W NW NW NW NW NW  W  W  W  W
WIND SPD                  10 11 13 12 10  4  3  4  5  8 10 10 11  8  5  4  5  5
WIND GUST                 24 25                                  18            
CLOUDS                    CL CL FW SC B1 B2 B2 SC FW CL SC B1 B1 FW FW FW CL CL
CLOUDS(%)                  2  5 10 27 60 79 78 40  9  2 49 65 53 13 11 11  2  2
VSBY                      10 10 10 10 10 10 10 10 10 10 10 10 10 10            
POP 12HR                      0          30          70           0           5
RAIN SHWRS                            IS SC NM                                 
TSTMS                                 IS IS                                    
MIX HGT                   <1  1  3  7  5 <1 <1 <1 <1  2  6  7  6 <1            
T WIND DIR                 S SW SW SW SW  W SW  W NW NW NW NW NW NW            
T WIND SPD                 8 17 24 17 16  9  2 11 12 13 13 13 18 20            
DISPERSION                FR             VP VP VP PR             PR PR VP PR   
ADI                        5 28 80 80 66  6  2  5  6 32 88 47 63 14            
MAX LVORI                  3  3  1  1  1  3  7  6  6  4  1  1  1  2            
STABILITY                  E  C  C  C  C  E  E  F  F  B  B  D  D  E            
CEILING                    None  None 10500  4800  None  None  None  None      
STA PRES                  29.37 29.31 29.16 29.11 29.10 29.15 29.17            


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      86      61      91      64      92      65      92
TEMP          73 69 55 57 83 78 65 65 90 82 69 67 90 84 71 68 90 85
DEWPT         42 45 44 47 56 58 57 58 59 61 61 61 62 62 62 63 62 62
RH            33 42 66 69 40 50 75 78 35 49 76 81 39 48 73 84 39 46
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW SC SC SC SC SC SC SC FW SC FW FW FW FW FW FW SC
POP 12HR            0       0      10      10      10      20       5      10       5
RAIN SHWRS                                  IS                     
TSTMS                                       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