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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon Oct 12 2026
NCZ001-122000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
131 PM EDT Mon Oct 12 2026
Date Mon 10/12/26 Tue 10/13/26 Wed 10/14/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 63 52 70 57 73
TEMP 61 63 59 57 55 54 55 62 68 67 59 59 59 58 57 66 72 70 61
DEWPT 48 47 50 50 51 52 53 57 57 58 56 55 53 53 53 58 59 61 59
MAX/MIN RH 57 93 68 89 63
RH 62 56 72 77 86 93 93 84 68 73 90 87 80 83 86 75 64 73 93
WIND DIR NW NW NW NW NW NW NW W W W W W W W W W W W W
WIND SPD 23 14 10 10 11 11 12 8 6 6 6 11 14 16 13 5 4 4 5
WIND GUST 33 20 21 21
CLOUDS FW FW B1 FW FW FW FW FW CL CL CL CL CL CL CL CL FW FW FW
CLOUDS(%) 12 9 58 10 16 16 6 12 3 2 5 4 2 3 5 3 6 7 11
VSBY 10 10 10 10 10 7 3 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
RAIN SHWRS
Obvis PF
MIX HGT 2 2 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NW NW NW NW NW NW NW NW W W W W W NW NW NW W W W
T WIND SPD 23 13 8 6 6 5 5 10 11 10 3 5 10 9 6 13 5 8 2
DISPERSION FR FR FR FR PR FR GD GD PR
ADI 40 25 5 5 5 4 4 24 51 41 2 4 9 8 5 28 23 27 1
MAX LVORI 3 2 3 4 5 6 6 4 1 3 7 6 4 4 5 3 2 3 7
STABILITY D D E E E E C B B B F E D D C B B B F
CEILING None None None None None None None None None
STA PRES 26.74 26.76 26.77 26.80 26.77 26.79 26.80 26.82 26.79
Date Thu 10/15/26Fri 10/16/26Sat 10/17/26Sun 10/18/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 59 72 59 66 38 46 33 50
TEMP 61 60 71 64 62 60 64 53 45 39 44 38 36 34 48 42
DEWPT 56 56 61 60 59 58 58 49 38 32 31 31 28 24 31 34
RH 84 87 71 87 90 93 81 86 76 76 60 76 72 66 51 73
WIND SPD <15 <15 <15 15> 15> 15> <15 <15
AVG CLOUDS FW FW SC SC SC SC FW B1 B1 SC SC FW FW FW CL CL
POP 12HR 0 10 5 30 10 5 20 5
RAIN SHWRS SC IS IS
SNOWSHWRS 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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