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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Sep 24 2026
VAZ012-250800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Thu Sep 24 2026
Date 09/24/26 Fri 09/25/26 Sat 09/26/26 Sun
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 38 71 39 72 41
TEMP 44 42 39 40 57 69 70 53 47 43 41 41 59 69 71 57 47 44 42 43
DEWPT 44 42 39 38 42 41 44 45 42 39 38 39 45 45 46 46 45 43 41 42
MIN/MAX RH 100 35 94 39 100
RH 100100100 92 57 36 39 74 83 86 89 92 60 42 41 67 93 96 96 96
WIND DIR E NE N N N N N N N NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 1 1 1 1 2 2 2 3 2 1 2 2 2 2 3 3 2 2 2 2
CLOUDS FW FW FW FW CL FW FW SC SC FW FW SC FW FW CL CL FW CL FW CL
CLOUDS(%) 18 22 14 9 4 7 12 32 30 10 10 26 19 7 5 3 9 4 8 4
VSBY 10 9 3 1 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
Obvis PF PF PF PF
MIX HGT <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE NE N W N N N NW NW NW NW W NW N NW NW
T WIND SPD 4 4 2 2 10 10 10 8 5 4 4 3 11 14 16 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 1 2 23 39 40 4 3 2 2 4 29 59 63 4
MAX LVORI 9 9 10 8 2 1 1 3 5 6 6 6 2 1 1 3
STABILITY G G G A B B B G G G G B B B B G
CEILING None None None None None None None None None
STA PRES 27.41 27.39 27.38 27.32 27.34 27.29 27.30 27.26
Date 09/27Mon 09/28/26Tue 09/29/26Wed 09/30/26Thu 10/01/26
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 72 43 75 44 80 48 81 54 81
TEMP 69 56 46 45 71 59 48 46 75 62 52 51 76 67 58 56 76 69
DEWPT 48 48 45 44 51 52 46 45 52 54 48 48 58 59 54 54 62 62
RH 47 74 96 96 49 78 93 96 45 75 86 89 54 75 86 93 62 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC SC SC FW FW CL FW FW FW FW SC SC SC SC B1
POP 12HR 0 0 0 0 0 0 5 20 20
RAIN SHWRS 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