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

VAZ018-152000-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
631 AM EDT Sat Aug 15 2026

Date             Sat 08/15/26            Sun 08/16/26            Mon 08/17/26
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20

MAX/MIN TEMP                 86          70          88          71          87
TEMP             71 81 86 82 74 73 71 71 71 81 86 86 77 75 74 73 71 81 86 83 75
DEWPT            69 73 73 74 73 71 70 69 69 73 73 73 71 70 69 68 68 71 71 70 69
MAX/MIN RH                   66          96          62          90          61
RH               93 77 65 77 97 93 97 93 93 77 65 65 82 84 84 84 90 72 61 65 82
WIND DIR         NW  W  W NW NW SE  S SW SW  W  W  W  W  W  W  W  W NW NW NW NW
WIND SPD          1  2  3  3  1  1  1  1  2  4  6  6  4  6  8  9  9  8  8  6  5
WIND GUST                                   14 17 19 16 21 26 26 26 24 21 19 19
CLOUDS           B1 B1 B1 B2 B1 B1 B1 B2 B1 B2 B1 FW B1 B1 SC SC SC B1 SC SC SC
CLOUDS(%)        51 63 61 76 58 65 61 82 67 74 67 21 51 51 48 49 49 54 39 31 35
VSBY              3 10 10 10 10  8  4  3  3 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                     40          40          50          30          10
RAIN SHWRS             SC SC IS IS    SC SC SC SC    SC SC IS IS               
TSTMS                  IS IS IS IS    IS IS IS IS    SC IS                     
Obvis            PF                                                            
MIX HGT          <1  3  4  3 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1  1  3  4  4  1
T WIND DIR       NW  W NW  W  E SE SE  S  S SW  W  W SW  W  W  W  W NW NW NW NW
T WIND SPD        1  3  9  5  2  3  8  3  5 11 24 20  5  8 13 10 13 19 16 14 12
DISPERSION                   VP VP VP VP             VP PR PR PR             PR
ADI               1 12 49 23  1  2  4  2  6 33102118  4  5 12  9 23 62 81 73  6
MAX LVORI         7  4  1  3  8  7  8  7  6  3  1  1  5  5  4  5  4  3  1  1  4
STABILITY         B  B  B  B  F  F  F  F  B  C  C  B  E  E  D  D  B  C  B  B  F
CEILING              None  3000  2000   400  1000  None  None  None  None  None
STA PRES            27.94 27.91 27.91 27.86 27.83 27.75 27.74 27.72 27.73 27.70


Date          Tue 08/18/26Wed 08/19/26Thu 08/20/26Fri 08/21/26
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly     02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20

MIN/MAX TEMP       67      85      64      88      68      86      64      81
TEMP          69 69 85 74 66 67 86 77 70 70 84 74 67 66 79 71
DEWPT         67 66 66 63 60 61 67 65 64 65 69 65 63 62 65 63
RH            93 90 53 69 81 81 53 67 81 84 61 74 87 87 62 76
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR           10       5       5       5      20      40      30      40
RAIN SHWRS                            IS IS    SC SC IS IS SC
TSTMS                                          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