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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Mon Sep 7 2026
NCZ003-080800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
401 PM EDT Mon Sep 7 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 59 82 60 84 64
TEMP 79 74 67 64 61 62 73 77 81 74 66 63 61 62 76 81 84 77 70 67 64 66
DEWPT 64 62 60 59 58 60 63 61 61 60 58 56 55 56 62 63 64 64 62 61 60 61
MIN/MAX RH 95 51 85 50 87
RH 60 66 78 84 90 93 71 58 51 62 75 78 81 81 62 54 51 64 76 81 87 84
WIND DIR E E NE N N N SE S S N N N N N S S S SW W W N W
WIND SPD 4 1 1 0 0 0 3 4 3 0 0 0 0 0 3 5 5 2 1 1 0 1
CLOUDS B1 SC SC FW SC SC SC SC FW FW CL FW FW FW FW FW FW CL CL CL CL CL
CLOUDS(%) 69 27 33 17 32 27 35 32 23 9 4 22 23 23 20 21 13 1 1 2 3 3
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 5 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR E E NE SE SE SE SE S S S W W NW W SW SW SW SW
T WIND SPD 9 3 2 5 5 4 6 4 4 2 1 2 2 2 10 9 13 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 58 2 1 3 3 4 28 27 25 1 1 1 1 2 36 55 86 4
MAX LVORI 1 3 5 6 6 6 3 2 2 3 4 4 5 5 1 1 1 3
STABILITY A G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 28.31 28.36 28.40 28.37 28.39 28.39 28.38 28.30
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 67 86 65 84 65 86 64 86
TEMP 87 79 69 69 82 77 69 67 80 77 69 67 82 78 68 67 83 77
DEWPT 66 67 66 66 70 71 67 67 72 71 68 67 70 70 66 64 67 66
RH 50 67 90 90 67 82 93100 77 82 97100 67 76 93 90 59 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B1 B2 B1 B1 B1 B2 B1 SC SC B1 FW FW FW SC
POP 12HR 5 30 70 40 60 40 30 10 20
RAIN SHWRS IS SC SC NM SC SC NM SC IS SC IS
TSTMS IS IS SC IS IS SC 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