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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Sep 6 2026
NCZ003-070800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Sun Sep 6 2026
Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed
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 63 78 62 81 62
TEMP 70 68 67 66 72 76 77 73 67 64 62 63 72 78 80 74 66 63 62 64
DEWPT 67 65 65 64 63 63 63 63 62 61 61 61 64 63 63 64 61 61 61 62
MIN/MAX RH 98 62 96 56 97
RH 90 90 93 93 73 64 62 71 84 90 97 93 76 60 56 71 84 93 97 93
WIND DIR NE E NE NE E E E NE E E NE NE E SE SE SE N NW W W
WIND SPD 5 5 5 5 5 5 3 2 3 3 3 3 3 3 2 1 1 1 1 2
CLOUDS B2 B1 B1 B1 B1 SC B1 FW SC FW SC FW SC FW FW FW FW SC FW SC
CLOUDS(%) 72 51 63 60 57 44 53 17 29 21 35 23 27 23 15 13 16 29 20 27
VSBY 9 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 0 0 0
RAIN SHWRS
TSTMS
MIX HGT <1 <1 <1 <1 3 4 5 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR NE E E E E E W W N E NE NE SE SE S SE
T WIND SPD 10 6 8 9 13 8 1 3 1 2 3 4 5 3 2 1
DISPERSION PR PR PR VP VP VP VP VP VP VP VP
ADI 7 5 5 9 50 44 7 2 1 1 2 4 20 20 13 1
MAX LVORI 5 6 6 6 3 1 3 3 6 7 8 7 3 2 2 4
STABILITY E E E A B A A G G G G A A A A G
CEILING 3800 3600 None None None None None None None
STA PRES 28.94 29.01 29.07 29.08 29.13 29.18 29.24 29.20
Date 09/09Thu 09/10/26Fri 09/11/26Sat 09/12/26Sun 09/13/26
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 85 66 88 66 85 64 84 65 86
TEMP 82 78 68 67 86 79 70 67 82 76 66 66 81 76 68 67 84 78
DEWPT 67 67 66 66 69 69 68 66 67 67 65 64 68 69 66 66 69 68
RH 61 69 93 97 57 72 93 97 61 74 97 93 65 79 93 97 61 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW B1 SC SC SC B1 SC SC SC B1 SC SC SC SC
POP 12HR 0 5 30 20 40 20 30 20 20
RAIN SHWRS SC IS SC IS IS SC IS IS
TSTMS IS IS SC IS 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
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