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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EDT Wed Jul 22 2026

VAZ018-230800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
601 PM EDT Wed Jul 22 2026

Date           07/22/26      Thu 07/23/26            Fri 07/24/26            Sat
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                 62          73          60          75          62
TEMP             74 68 66 64 64 69 71 71 68 64 63 61 62 70 74 72 68 65 65 64 63
DEWPT            66 63 61 60 60 60 61 61 62 60 59 58 58 62 63 63 62 61 61 61 61
MIN/MAX RH                   93          68          90          68          95
RH               76 84 84 87 87 73 71 71 81 87 87 90 87 76 69 73 81 87 87 90 93
WIND DIR         NW NW  N  N NE  E  E  E SE SE  E NE  E  E SE SE SE  E  E  E  E
WIND SPD          3  3  2  2  3  3  3  3  3  1  1  1  2  4  4  4  2  1  1  1  1
WIND GUST        13                                                            
CLOUDS           B1 B1 B2 B2 B2 B1 B2 B1 FW SC SC B1 B1 B2 OV B2 B2 B2 B2 B2 B2
CLOUDS(%)        52 61 77 73 72 59 79 53 18 37 39 66 68 77 89 81 86 80 81 78 84
VSBY             10 10  8  6  8 10 10 10 10 10 10 10  7 10 10 10 10 10 10  7   
POP 12HR                     20          20          10          20          40
RAIN SHWRS                      IS                   IS IS       SC SC SC SC SC
Obvis                     PF                                                   
MIX HGT          <1 <1 <1 <1  1  2  3  3 <1 <1 <1 <1  1  3  3  4  1            
T WIND DIR        W  N  N NE NE  E  E SE SE SE  N NW NE SE SE SE SE            
T WIND SPD        8  2  9  9 11  8  2  2  5  1  2  2  1 12  9  6  8            
DISPERSION       VP VP VP VP             VP VP VP VP             VP VP VP VP   
ADI               4  1  4  4 18 23  9  9  3  1  1  1  2 36 29 25  4            
MAX LVORI         4  5  5  5  4  3  3  3  5  6  6  7  6  3  3  3  5            
STABILITY         F  F  F  F  B  B  B  B  G  G  G  F  B  C  C  C  F            
CEILING              3100  2100  1300  None  None  4200  2800  3100  4000      
STA PRES            27.76 27.81 27.89 27.88 27.92 27.93 27.95 27.90            


Date           07/25Sun 07/26/26Mon 07/27/26Tue 07/28/26Wed 07/29/26
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       77      63      84      65      87      66      87      65      85
TEMP          74 70 66 65 81 75 68 68 84 77 69 68 84 76 69 67 83 75
DEWPT         67 65 63 64 68 68 64 66 67 67 65 66 69 67 64 64 65 64
RH            79 84 90 97 65 79 87 93 57 71 87 93 61 74 84 90 55 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B1 SC SC SC B1 SC SC B1 SC B1 B1 B1 B1 SC SC SC B1
POP 12HR           40      20      40      30      20      40      30      20      30
RAIN SHWRS    SC SC IS IS    SC SC       IS SC SC IS SC IS       SC
TSTMS            SC          SC IS       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