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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EDT Fri Sep 11 2026
NCZ003-120800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
701 PM EDT Fri Sep 11 2026
Date 09/11/26 Sat 09/12/26 Sun 09/13/26 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 68 81 67 86 66
TEMP 75 70 68 68 69 75 79 79 74 70 69 68 68 78 84 86 78 71 68 66 67
DEWPT 71 69 68 67 69 74 74 75 73 70 69 68 68 74 72 72 72 69 67 66 66
MIN/MAX RH 100 80 100 64 100
RH 87 97100 97100 97 85 88 97100100100100 88 67 63 82 93 97100 97
WIND DIR N E SE SE N SE S S S N N N NW NW NW NW NW NW NW NW NW
WIND SPD 2 3 1 1 0 2 4 3 1 0 0 0 1 3 3 3 1 2 2 3 4
CLOUDS SC SC OV OV OV OV OV B2 B2 B1 B1 B1 SC SC SC SC FW FW FW FW FW
CLOUDS(%) 44 43 88 88 88 95 90 84 76 54 66 57 44 38 38 38 23 8 9 11 15
VSBY 10 10 10 7 7 10 10 10 10 6 1 1 3 10 7 7 10 10 10 10
POP 12HR 30 80 60 20 0
RAIN SHWRS SC IS SC SC NM O NM IS IS IS
TSTMS IS SC SC SC IS IS
Obvis PF PF PF PF PF PF PF PF
MIX HGT <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR N N E E E SE S S SE SE SW W NW NW NW NW W
T WIND SPD 3 2 3 2 4 4 8 6 3 1 3 2 2 11 8 4 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 2 1 4 8 17 13 2 1 2 1 2 42 44 19 2
MAX LVORI 7 7 8 10 9 8 4 4 8 10 10 10 9 4 1 3 4
STABILITY F F F F C C D C F F F F A B B B G
CEILING 3700 1100 600 1800 800 500 None None None
STA PRES 28.13 28.15 28.19 28.15 28.16 28.15 28.15 28.11
Date 09/14Tue 09/15/26Wed 09/16/26Thu 09/17/26Fri 09/18/26
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 86 60 80 59 84 62 88 67 86
TEMP 84 78 65 61 76 72 62 60 81 76 66 64 87 80 70 68 83 77
DEWPT 68 66 62 60 65 65 61 60 67 66 63 62 66 67 64 64 68 68
RH 59 67 90 97 69 79 97100 63 71 90 93 50 65 81 87 61 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW B1 B1 SC FW FW FW FW FW FW FW FW SC SC SC B1
POP 12HR 5 5 5 5 5 0 20 10 50
RAIN SHWRS IS IS SC
TSTMS 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