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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Sep 25 2026
VAZ012-260800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Fri Sep 25 2026
Date 09/25/26 Sat 09/26/26 Sun 09/27/26 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 38 70 41 65 45
TEMP 46 42 39 39 59 67 68 54 48 45 43 46 58 63 63 58 50 48 46 47
DEWPT 42 39 37 38 45 46 48 47 46 44 42 43 49 48 49 48 47 46 45 46
MIN/MAX RH 97 44 100 58 100
RH 86 89 92 96 60 47 49 77 93 96 96 89 72 58 60 69 89 93 96 96
WIND DIR N N N N N N N N NW NW NW NW NW NW NW NW NW W W W
WIND SPD 2 2 2 2 2 3 3 3 2 2 2 3 3 4 4 3 2 2 2 2
CLOUDS FW FW FW CL FW FW CL CL FW CL FW FW FW FW SC FW SC SC SC SC
CLOUDS(%) 11 6 6 4 10 6 5 2 15 4 11 22 22 19 30 20 42 35 33 41
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 4 <1
T WIND DIR NW NW NW NW NW N NW NW NW NW NW NW NW NW NW NW
T WIND SPD 8 6 6 8 13 18 19 9 8 6 6 10 16 24 25 11
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 3 3 8 28 64 69 4 4 3 3 11 44 90109 5
MAX LVORI 5 6 6 6 2 1 1 4 6 8 9 5 3 1 1 3
STABILITY G G G B B B B G G G G B B B B G
CEILING None None None None None None None None None
STA PRES 27.30 27.25 27.25 27.22 27.23 27.18 27.17 27.13
Date 09/28Tue 09/29/26Wed 09/30/26Thu 10/01/26Fri 10/02/26
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 68 46 78 49 81 53 81 56 81
TEMP 66 61 49 48 71 64 52 50 74 68 56 55 75 69 59 58 75 69
DEWPT 56 56 49 48 57 57 51 50 59 60 54 55 63 62 58 57 64 64
RH 70 84100100 61 78 96100 59 76 93100 66 78 96 96 69 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC FW FW FW FW CL FW FW SC SC SC SC SC SC B1 B1
POP 12HR 0 0 0 0 0 0 10 10 30
RAIN SHWRS 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