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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Thu Sep 24 2026
VAZ012-242000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
131 PM EDT Thu Sep 24 2026
Date Thu 09/24/26 Fri 09/25/26 Sat 09/26/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 63 38 70 39 71
TEMP 56 61 54 46 43 40 40 56 66 67 53 46 42 39 41 59 68 71 57
DEWPT 52 51 49 45 42 39 39 44 42 43 44 41 39 36 37 43 43 44 46
MAX/MIN RH 69 99 38 91 37
RH 86 70 83 96 96 96 96 64 42 42 71 83 89 89 85 55 40 38 67
WIND DIR E E NE E NE N N N N N N NW NW NW NW NW NW NW NW
WIND SPD 2 2 1 1 1 1 1 2 2 2 2 1 1 1 1 1 2 2 2
CLOUDS B2 SC FW FW CL FW FW CL CL CL FW FW FW CL FW FW FW FW FW
CLOUDS(%) 70 45 23 7 5 11 8 3 4 3 12 13 9 4 7 8 9 6 7
VSBY 8 10 10 10 10 9 8 10 10 10 10
POP 12HR 80 0 0 0 0
RAIN
MIX HGT 2 3 <1 <1 <1 <1 <1 2 3 4 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE NE NE NE NE N NW NE NE N NW NW NW NW W NW N NW NW
T WIND SPD 11 8 6 8 2 2 2 6 9 9 9 4 3 3 3 8 12 13 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 33 30 3 4 1 1 2 17 38 41 4 2 2 2 3 19 54 58 4
MAX LVORI 4 3 5 8 7 8 8 2 1 1 3 5 6 6 6 2 1 1 3
STABILITY C B G G G G A B B B G G G G A A B B G
CEILING None None None None None None None None None
STA PRES 27.42 27.42 27.39 27.39 27.33 27.34 27.31 27.32 27.29
Date Sun 09/27/26Mon 09/28/26Tue 09/29/26Wed 09/30/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 41 70 42 73 44 78 50 80
TEMP 44 43 67 56 45 44 69 59 47 47 74 63 53 52 76 67
DEWPT 42 41 46 47 43 43 48 50 45 45 51 54 49 49 60 61
RH 93 93 47 72 93 96 47 72 93 93 44 72 86 89 58 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW FW SC FW SC B1
POP 12HR 0 0 0 0 0 0 0 20
RAIN SHWRS 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