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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Jul 31 2026

VAZ046-010800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
801 PM EDT Fri Jul 31 2026

Date           07/31/26      Sat 08/01/26            Sun 08/02/26            Mon
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                 64          88          70          85          69
TEMP                72 68 66 68 82 87 86 81 77 74 71 72 79 82 80 76 73 73 72 72
DEWPT               58 60 60 63 65 65 66 66 67 67 67 68 72 73 74 74 73 73 72 72
MIN/MAX RH                   86          48          92          74         100
RH                  61 76 81 84 56 48 51 60 71 79 87 87 79 74 82 94100100100100
WIND DIR             S  S  S SW  S  S  S  S  S  S  S SE  S  S  S  S  S  S  S  S
WIND SPD             2  2  2  2  6 10 10 10 10  8  5  5  8  9  8  5  4  5  5  5
WIND GUST                                21 21 20          19                  
CLOUDS              B1 SC SC SC SC B2 B2 B2 B2 B1 B1 B2 B2 B2 B2 OV OV B2 B2 B2
CLOUDS(%)           51 45 39 43 44 81 81 79 81 59 67 86 73 81 81 88 88 83 85 81
VSBY                10 10 10 10 10 10 10 10 10 10 10  9  9  3  3  3  3  6  6  6
POP 12HR                      0           0          20          70          80
RAIN SHWRS                                           SC SC NM NM  O  O SC SC NM
TSTMS                                                SC SC SC SC SC SC         
MIX HGT             <1 <1 <1 <1  3  6  6 <1 <1 <1 <1 <1  3  3  3 <1            
T WIND DIR          SE  S  S  S  S  S  S  S  S  S  S  S  S  S SW  S            
T WIND SPD           2  2  2  3 16 16 17 13  9 10 11 12 13 11 11  9            
DISPERSION          VP VP VP             FR FR PR PR             PR VP PR PR   
ADI                  1  1  1  3 59 73 75 12  8  9  8 14 43 40 36  6            
MAX LVORI            3  4  5  5  1  1  1  2  3  4  4  5  3  3  3  6            
STABILITY            F  F  F  A  B  C  C  D  D  D  E  C  C  C  C  E            
CEILING              None  None 22300  4200  4200  9000  1000  2200 13700      
STA PRES            29.26 29.25 29.25 29.20 29.20 29.19 29.20 29.18            


Date           08/03Tue 08/04/26Wed 08/05/26Thu 08/06/26Fri 08/07/26
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       83      68      85      68      86      69      89      70      89
TEMP          81 76 71 70 83 79 70 70 84 79 72 71 86 81 72 72 88 81
DEWPT         77 74 71 70 75 73 70 70 75 74 72 71 74 74 72 72 75 74
RH            88 94100100 77 82100100 74 85100100 68 79100100 66 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 SC B1 B1 SC SC B1 B1 SC B1 B1 B1 SC SC SC B1
POP 12HR           70      40      50      20      30      20      30      20      30
RAIN SHWRS    NM NM SC    IS SC IS       SC IS       SC IS       SC
TSTMS            SC IS       SC IS       SC 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