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

VAZ046-190800-
RAWS 441101
37.39N  78.80W Elev. 804 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                 66          78          66          84          67
TEMP                72 70 67 66 70 74 77 73 68 67 66 66 74 80 83 78 71 69 68 68
DEWPT               70 68 65 64 64 65 66 67 66 66 65 66 68 69 69 71 70 69 68 68
MIN/MAX RH                   95          69          98          62         100
RH                  93 93 93 93 81 74 69 81 93 97 97100 82 69 63 79 97100100100
WIND DIR            NE NE NE NE NE NE NE NE  E SE SE  S  S SW SW SW SW SW NE  N
WIND SPD             5  5  8  9  8  5  5  3  2  2  1  2  5  6  5  3  3  3  3  4
CLOUDS              B2 OV B2 B2 B2 B2 SC B1 B2 B1 B2 B2 B1 B1 B1 SC B1 B1 SC B1
CLOUDS(%)           80 92 81 80 71 70 47 57 75 69 84 77 64 58 58 49 54 57 49 58
VSBY                10 10  9 10 10 10 10 10 10 10 10 10 10  7  7  7            
POP 12HR                     20          10           5          20          20
RAIN SHWRS             IS                                  IS IS IS IS         
TSTMS                                                         IS IS            
MIX HGT             <1 <1  1 <1  2  2  3 <1 <1 <1 <1 <1  3  4  4 <1            
T WIND DIR           N  N  N NE NE NE NE NE  E  N  S  S SW SW  W SW            
T WIND SPD           4  5 12 14  9  6  5  6  5  0  2  3 13 11 16  9            
DISPERSION          PR PR PR             VP VP VP VP             VP VP VP VP   
ADI                  3  4 11 17 17 14 21  3  3  0  1  3 32 32 42  4            
MAX LVORI            6  6  5  5  3  4  3  5  6  9  8  9  3  3  1  4            
STABILITY            E  E  D  D  D  D  B  F  F  F  F  C  D  D  D  F            
CEILING                    1000  2100  None  2200  3400  3900  None  None      
STA PRES                  29.36 29.41 29.38 29.38 29.34 29.30 29.20            


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      64      71      58      64      57      67      55      71
TEMP          82 75 65 64 69 66 61 58 63 61 57 57 66 61 56 56 69 64
DEWPT         69 68 65 64 67 65 61 58 62 61 57 57 61 61 56 56 59 60
RH            65 79100100 93 97100100 97100100100 84100100100 70 87
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 SC
POP 12HR           50      70      60      60      50      40      30      20      20
RAIN SHWRS       SC NM NM SC NM NM SC SC SC SC SC SC SC IS IS IS IS
TSTMS            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