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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EST Sat Nov 15 2025
NCZ001-160900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
731 PM EST Sat Nov 15 2025
Date 11/15/25 Sun 11/16/25 Mon 11/17/25 Tue
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
MIN/MAX TEMP 45 50 28 41 33
TEMP 53 53 51 50 46 46 43 38 35 33 31 29 33 40 40 34 34 35 36 36
DEWPT 48 49 50 47 40 28 20 16 16 14 13 11 12 13 15 17 18 17 19 19
MIN/MAX RH 99 38 47 33 50
RH 83 86 96 89 79 49 39 40 45 45 47 46 41 33 36 49 51 47 50 50
WIND DIR W W W NW NW NW NW NW NW NW NW NW NW NW W W W W W SW
WIND SPD 32 36 37 35 29 25 25 28 27 26 25 21 18 13 10 10 10 9 8 6
WIND GUST 44 55 56 55 48 41 40
CLOUDS B1 B1 B2 B2 SC FW FW CL FW FW CL FW CL FW FW FW SC B1 SC B1
CLOUDS(%) 55 63 74 82 33 12 8 5 8 6 5 6 3 8 7 10 29 52 44 58
VSBY 10 7 5 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 50 10 0 0 10
RAIN SHWRS SC SC
MIX HGT <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR W W W W NW NW NW NW NW NW NW NW NW NW NW NW
T WIND SPD 26 31 28 25 36 32 33 21 24 14 24 20 27 23 21 10
DISPERSION GD GD GD GD GD GD GD FR FR PR PR
ADI 24 28 26 31 67 73 75 20 22 13 22 23 46 60 54 7
MAX LVORI 4 4 4 4 3 1 1 2 2 2 2 2 1 1 1 2
STABILITY D D D D D D D D D D D D D C C E
CEILING 100 0 None None None None None None None
STA PRES 26.42 26.33 26.36 26.40 26.47 26.54 26.62 26.65
Date 11/18Wed 11/19/25Thu 11/20/25Fri 11/21/25Sat 11/22/25
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MAX/MIN TEMP 51 44 56 48 55 48 52 48 51
TEMP 50 45 49 50 54 51 51 50 54 50 51 50 51 51 51 49 50 45
DEWPT 27 33 41 46 50 49 48 48 50 48 48 47 49 49 49 46 45 42
RH 41 62 74 86 86 93 89 93 86 93 89 89 93 93 93 89 83 89
WIND SPD <15 <15 <15 <15 <15 <15 <15 15> <15
AVG CLOUDS B1 B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1
POP 12HR 20 30 10 20 20 30 40 50 30
RAIN S C C S S S S S C
RAIN SHWRS SC SC SC 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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