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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EST Tue Nov 25 2025
NCZ001-252100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
431 AM EST Tue Nov 25 2025
Date Tue 11/25/25 Wed 11/26/25 Thu 11/27/25
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 54 47 51 24 31
TEMP 45 44 47 50 52 53 52 52 50 48 48 42 35 31 28 26 25 25 29 28 25
DEWPT 40 44 47 49 50 52 52 51 48 46 43 35 26 22 20 18 15 13 11 10 11
MAX/MIN RH 79 100 67 78 46
RH 82100100 96 93 96100 96 93 93 83 76 69 69 71 71 65 60 46 46 55
WIND DIR S S S SW SW SW SW W W W W W W NW NW NW NW W W W W
WIND SPD 14 13 12 10 11 12 12 13 18 21 21 24 34 37 39 37 37 28 21 23 29
WIND GUST 39
CLOUDS OV OV OV B2 B2 B2 B2 B1 B1 B1 SC FW FW SC SC B1 B1 SC FW CL FW
CLOUDS(%) 94 92 93 86 76 82 71 65 62 51 48 22 17 27 49 51 61 36 19 5 6
VSBY 10 7 4 6 7 4 3 7 7 7 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 80 20 0 0
RAIN C D S C L C S S S
TSTMS IS IS IS
MIX HGT <1 <1 <1 <1 <1 <1 <1 <1 <1 2 2 2 1 1 2 1 1 2 3 3 1
T WIND DIR S S S S SW S S SW W W W W W NW NW NW NW NW W W W
T WIND SPD 8 8 9 6 5 10 9 8 24 26 33 32 36 35 34 35 35 32 31 32 35
DISPERSION FR FR FR FR GD GD GD GD GD
ADI 9 9 11 8 5 9 8 7 27 48 69 66 33 32 39 40 55 68 78 83 40
MAX LVORI 4 8 7 6 6 6 8 6 4 4 4 3 3 3 3 3 1 1 1 1 1
STABILITY D D D D D D D D D D D D D D D D D D D D D
CEILING 500 400 300 300 None None None None None None
STA PRES 26.72 26.64 26.59 26.57 26.58 26.57 26.60 26.60 26.64 26.65
Date Fri 11/28/25Sat 11/29/25Sun 11/30/25Mon 12/01/25
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 18 26 19 35 27 39 33 44
TEMP 22 18 24 22 20 20 34 26 28 31 37 34 36 37 43 39
DEWPT 11 10 9 9 10 8 10 14 17 23 29 30 31 34 39 37
RH 62 70 52 57 64 59 36 60 63 72 72 85 82 89 86 92
WIND SPD 15> 15> <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC FW FW SC SC SC B1 B2 B2 B2 B1 B2 B2 B2
POP 12HR 0 0 0 0 20 30 40 40
RAIN C C C C C C
SNOW S
$$
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