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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Fri Sep 18 2026

VAZ018-190800-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
901 PM EDT Fri Sep 18 2026

Date           09/18/26      Sat 09/19/26            Sun 09/20/26            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                 67          76          66          80          66
TEMP                70 69 68 67 70 74 75 70 66 66 66 66 73 79 77 71 69 68 67 67
DEWPT               66 66 65 65 66 66 66 65 64 64 64 65 68 69 70 69 67 66 65 66
MIN/MAX RH                   94          74          95          71          98
RH                  87 90 90 93 87 76 74 84 93 93 93 97 84 72 79 93 93 93 93 97
WIND DIR             N NE  E  E  E SE SE SE SE SE SE  S SW SW  W SW  W  W  W NW
WIND SPD             1  1  1  2  3  3  4  3  2  2  1  2  2  3  2  1  2  1  1  2
CLOUDS              B1 B2 B2 OV B2 B2 B1 B2 B2 OV B2 OV B2 B2 B2 B1 B1 B1 SC B1
CLOUDS(%)           53 82 83 92 86 78 59 71 82 92 86 92 71 86 86 59 62 51 49 57
VSBY                10  6  3  2  9 10 10  9  9  7 10 10 10  3  3  7            
POP 12HR                     20          30           5          60          30
RAIN SHWRS                IS IS IS                         NM NM SC SC       SC
TSTMS                                                      SC SC IS            
Obvis                        PF                                                
MIX HGT             <1 <1 <1 <1  1  2  2 <1 <1 <1 <1 <1  3  5  2 <1            
T WIND DIR          NW NW  N NE  E SE SE SE SE  S  S  S SW  W  W  W            
T WIND SPD           3  3  2  3  5  5  3  6  6  4  3  6 11 12 10  6            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  1  3 10 15 10  3  3  2  2  5 34 50 22  3            
MAX LVORI            6  7  7  6  5  4  3  5  6  6  7  7  4  3  3  8            
STABILITY            F  F  F  C  C  C  C  F  F  F  F  C  C  C  C  F            
CEILING                     400   100  5100   400     0   900  3800  7500      
STA PRES                  27.87 27.90 27.86 27.87 27.83 27.79 27.74            


Date           09/21Tue 09/22/26Wed 09/23/26Thu 09/24/26Fri 09/25/26
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      63      70      57      64      56      66      55      71
TEMP          82 71 65 64 68 64 60 58 62 58 56 56 65 58 56 55 69 61
DEWPT         70 67 64 63 68 62 60 57 62 58 56 55 62 58 55 54 60 57
RH            67 87 97 97100 93100 96100100100 96 90100 96 96 73 87
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 OV B2 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1
POP 12HR           90      70      70      80      50      40      30      20      20
RAIN SHWRS    SC  O NM SC NM NM  O NM SC SC SC SC SC SC IS    IS IS
TSTMS         IS SC IS       SC 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