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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EDT Tue Sep 8 2026
NCZ003-090800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
201 AM EDT Tue Sep 8 2026
Date 09/07/26 Tue 09/08/26 Wed 09/09/26 Thu
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 60 83 60 84 64
TEMP 62 62 73 78 81 73 66 63 61 62 74 81 84 76 70 67 65 66
DEWPT 60 60 62 59 59 58 57 56 56 58 62 62 62 63 61 62 62 62
MIN/MAX RH 96 47 87 48 91
RH 93 93 68 52 47 59 73 78 84 87 66 53 48 64 73 84 90 87
WIND DIR E NE E SE SE SE NE W NW NW SW SW SW S SW SW SW SW
WIND SPD 2 3 3 3 2 1 1 1 1 2 4 5 4 3 3 4 4 4
CLOUDS FW FW SC SC FW FW CL FW FW FW FW FW FW CL CL CL CL FW
CLOUDS(%) 15 14 29 31 20 18 3 13 16 22 16 22 15 4 3 2 4 6
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 4 5 5 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR SE NE SE S S W NW NW NW W SW SW SW SW
T WIND SPD 2 1 5 3 3 1 1 2 2 1 13 11 13 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 1 1 27 22 22 1 1 1 1 1 50 73 98 3
MAX LVORI 8 8 3 2 2 3 4 5 5 6 1 1 1 3
STABILITY G A A A A G G G G A A A A G
CEILING None None None None None None None None
STA PRES 29.19 29.23 29.20 29.22 29.22 29.21 29.12
Date 09/10Fri 09/11/26Sat 09/12/26Sun 09/13/26Mon 09/14/26
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 89 68 87 67 85 66 85 65 86
TEMP 87 80 70 69 83 77 69 68 80 76 69 68 82 77 68 66 83 76
DEWPT 65 66 66 67 69 70 68 68 71 70 69 68 70 69 67 65 66 65
RH 48 62 87 93 63 79 97100 74 82100100 67 76 97 97 57 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW B1 SC B2 B1 B1 B1 B1 B1 SC SC SC FW FW FW FW
POP 12HR 5 20 60 50 50 40 20 10 20
RAIN SHWRS IS IS NM SC IS SC SC IS IS
TSTMS IS SC IS SC SC 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