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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EDT Sat Aug 15 2026

VAZ046-160800-
RAWS 441101
37.39N  78.80W Elev. 804 ft
601 PM EDT Sat Aug 15 2026

Date           08/15/26      Sun 08/16/26            Mon 08/17/26            Tue
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                 71          89          73          93          71
TEMP             80 76 74 73 72 80 87 88 81 76 75 74 75 87 92 91 83 76 73 71 72
DEWPT            70 72 71 71 72 75 76 76 75 74 72 71 72 74 74 73 72 71 70 70 70
MIN/MAX RH                  100          68          93          53          96
RH               72 87 90 93100 85 70 68 82 94 90 90 90 65 56 56 70 85 90 97 93
WIND DIR          E SE SE  S  S  S SW SW  S SW SW SW  W  W  W  W  W  W NW  N  N
WIND SPD          4  4  3  4  4  6  9  8  5  5  5  5  5  8  9  8  4  3  3  3  3
CLOUDS           SC B1 B2 B2 B2 B2 SC B1 B1 SC SC B1 SC FW SC SC B1 B1 SC SC SC
CLOUDS(%)        29 59 81 82 83 85 48 68 53 35 48 64 37 21 28 35 55 55 50 41 33
VSBY             10 10  8  7  6  9 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                     30          50          30          20          30
RAIN SHWRS             IS IS IS IS IS SC SC IS             IS IS SC SC         
TSTMS                     IS    IS IS SC SC IS             IS IS IS            
Obvis                        PF                                                
MIX HGT          <1 <1 <1 <1  1  2  4  3 <1 <1 <1 <1 <1  4  6  4 <1            
T WIND DIR       SE SE SE  S  S  S  S  S  S  S SW SW  W NW NW  W  W            
T WIND SPD        6  3  3  4  6  9 11 13  8  8  5  3  4 11 10 11  3            
DISPERSION       VP VP VP VP             PR PR PR PR             VP VP VP VP   
ADI               3  2  2  2 10 23 53 55  5  4  4  2  4 51 65 56  2            
MAX LVORI         4  7  8  9  8  4  3  1  4  6  6  6  6  1  1  1  3            
STABILITY         G  G  F  F  C  C  B  B  E  F  E  E  A  B  B  B  E            
CEILING              None  3100   700  4800  None  5500  None  None  None      
STA PRES            29.41 29.40 29.38 29.25 29.19 29.19 29.20 29.14            


Date           08/18Wed 08/19/26Thu 08/20/26Fri 08/21/26Sat 08/22/26
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       90      67      90      70      89      67      84      64      83
TEMP          89 81 70 69 88 83 73 72 88 80 70 68 82 76 66 66 81 76
DEWPT         70 68 66 65 69 68 69 68 70 69 66 63 66 64 64 64 67 66
RH            54 65 87 87 54 61 87 87 55 69 87 84 58 66 93 93 63 71
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC FW FW SC SC FW FW SC SC B1 B1 B1 SC B1 B1 B1 B1 B1
POP 12HR            5      10       0      10      30      50      40      50      30
RAIN SHWRS                               SC SC SC IS SC SC SC IS SC
TSTMS                                    IS IS       IS 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