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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Tue Jul 21 2026

VAZ018-220800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
401 PM EDT Tue Jul 21 2026

Date           07/21/26      Wed 07/22/26            Thu 07/23/26            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                 68          84          61          76          59
TEMP          79 75 73 70 69 70 77 81 81 72 68 66 63 63 69 74 75 70 63 61 60 62
DEWPT         73 70 69 69 68 69 71 69 68 65 62 61 60 59 61 62 62 61 58 57 56 57
MIN/MAX RH                   98          64          88          64          89
RH            82 84 87 97 97 97 82 67 65 79 81 84 90 87 76 66 64 73 84 87 87 84
WIND DIR      SW  W  W  W  W  W  W  W  W NW NW NW  N NE  E  E SE SE SE  E  E  E
WIND SPD       8  6  8  6  5  5  5  5  5  4  3  2  2  3  3  3  3  3  2  1  1  2
WIND GUST     25 25 27 26 20 18 18 17 16 16                                    
CLOUDS        B1 OV B2 OV B1 SC SC B1 B1 SC B1 B1 B1 B1 B2 B1 B1 SC SC SC B1 B2
CLOUDS(%)     63 99 81 93 67 44 34 57 55 40 56 56 64 58 72 68 53 37 34 50 61 73
VSBY           6  3  3  6  6 10  7  7  7  7  7 10  7  7  7  7  7  7  7 10 10   
POP 12HR                     90          30          20          20          20
RAIN SHWRS    SC  O NM NM SC    IS IS SC IS IS    IS IS IS IS IS IS IS       IS
TSTMS         SC NM SC IS       IS IS SC                                       
MIX HGT        2  1 <1 <1 <1  1  3  4  4 <1 <1 <1 <1  1  2  3  4  1            
T WIND DIR    SW SW SW SW  W  W NW  W  W SW  N  N  N NE  E SE SE SE            
T WIND SPD    24 11  8  9  9  8 11  9  9  8  2  8  9 11  5  2  3  5            
DISPERSION       PR PR PR PR             VP VP VP VP             VP VP VP VP   
ADI           64  8  7  6  6 14 48 36 36  4  1  4  4 19 17  9 15  3            
MAX LVORI      3  4  5  6  6  5  3  3  3  4  5  5  5  4  3  3  2  3            
STABILITY      C  E  D  E  E  A  A  C  C  F  F  F  F  B  B  B  B  G            
CEILING              1300  1600  None  None  None  4300  1300  None  None      
STA PRES            27.63 27.62 27.69 27.69 27.73 27.79 27.88 27.88            


Date           07/24Sat 07/25/26Sun 07/26/26Mon 07/27/26Tue 07/28/26
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       75      62      73      64      83      67      87      68      86
TEMP          75 69 65 63 71 68 65 66 81 75 69 69 84 77 70 70 84 76
DEWPT         63 62 61 62 68 66 64 65 69 68 65 66 69 68 65 65 67 65
RH            66 78 87 97 90 93 97 97 67 79 87 90 61 74 84 84 57 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 B2 B2 B2 SC SC SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR           20      50      50      20      20      20      30      30      30
RAIN SHWRS    IS IS SC SC SC SC IS IS    IS IS       SC SC SC IS SC
TSTMS               IS       SC          IS IS       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