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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Wed Sep 2 2026
NCZ003-030800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
901 PM EDT Wed Sep 2 2026
Date 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat
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 73 95 72 94 72
TEMP 80 77 75 76 86 91 93 85 77 75 73 75 85 91 92 85 76 74 73 73
DEWPT 68 68 66 67 69 70 69 71 69 69 69 68 69 66 67 68 70 69 69 69
MIN/MAX RH 79 46 86 42 88
RH 67 74 74 74 57 50 46 63 76 82 87 79 59 44 44 57 82 84 87 87
WIND DIR W N NW NW W SW SW W W SW W W W SW W W W NW NW NW
WIND SPD 1 1 1 1 1 2 2 1 3 3 3 3 3 3 3 2 3 3 4 4
CLOUDS FW CL CL CL CL FW FW FW FW FW CL CL CL FW SC SC SC FW FW FW
CLOUDS(%) 20 4 3 0 2 8 22 23 20 9 0 0 2 25 27 33 33 15 14 10
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 5 5 20 20
RAIN SHWRS IS IS IS IS
TSTMS IS IS IS IS
MIX HGT <1 <1 <1 <1 3 7 4 <1 <1 <1 <1 <1 3 6 3 <1
T WIND DIR NW NW NW NW W W SW SW SW W SW SW W W W SW
T WIND SPD 2 2 2 1 5 3 5 4 3 3 3 3 10 9 9 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 23 28 32 2 2 2 2 3 36 71 37 3
MAX LVORI 3 3 3 3 2 2 1 3 4 5 5 6 1 1 1 3
STABILITY 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
STA PRES 28.99 29.02 28.94 28.96 28.96 28.97 28.89
Date 09/05Sun 09/06/26Mon 09/07/26Tue 09/08/26Wed 09/09/26
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 91 68 81 64 79 63 83 65 87
TEMP 90 81 71 69 78 73 65 64 76 73 65 64 81 75 67 66 85 80
DEWPT 69 70 68 67 68 66 64 63 65 65 62 63 66 65 63 63 66 66
RH 50 69 90 93 71 79 97 97 69 76 90 97 60 71 87 90 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC FW SC
POP 12HR 50 30 50 30 20 10 10 5 10
RAIN SHWRS SC SC IS SC SC IS IS
TSTMS SC SC 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
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