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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EST Wed Dec 10 2025
NCZ001-110900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
301 PM EST Wed Dec 10 2025
Date 12/10/25 Thu 12/11/25 Fri 12/12/25 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
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 20 25 19 35 27
TEMP 36 33 28 25 23 21 19 22 22 20 20 21 24 26 27 32 32 31 33 32 31 29
DEWPT 32 31 26 21 19 18 17 19 18 17 16 17 18 19 22 25 27 27 29 29 27 25
MIN/MAX RH 97 80 86 74 88
RH 85 92 92 84 84 88 92 88 84 88 84 84 77 74 81 75 81 85 85 88 85 85
WIND DIR W W NW NW NW NW NW NW NW W W W W SW SW W W W W W W W
WIND SPD 21 33 37 39 37 34 24 16 13 16 13 13 10 10 9 10 10 13 19 21 23 21
CLOUDS B2 OV OV OV B2 B1 B1 B1 B1 SC SC B1 B1 B2 B1 B1 B1 B1 B1 B2 B1 B1
CLOUDS(%) 77 99 91 91 74 63 62 65 55 49 40 65 65 72 66 62 55 56 57 70 54 55
VSBY 5 6 6 5 10 9 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 30 30 30 10
FLURRIES SC
RAIN C
SNOW C L C C C S C C C S
SNOWSHWRS SC
MIX HGT 2 <1 1 1 2 2 2 2 2 <1 <1 <1 <1 <1 1 2 1 <1
T WIND DIR W W W NW NW NW NW NW W W W W W SW W W W W
T WIND SPD 28 12 25 41 42 39 31 27 21 14 10 10 4 5 19 26 14 9
DISPERSION GD GD GD GD GD FR FR FR FR GD GD GD
ADI 50 11 28 46 48 65 58 54 37 13 9 9 4 6 30 51 20 8
MAX LVORI 4 5 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4
STABILITY D D D D D D D D D D D D D D D D D D
CEILING 700 300 100 None None 2400 3100 None 200
STA PRES 26.30 26.39 26.49 26.52 26.54 26.52 26.49 26.49
Date 12/13Sun 12/14/25Mon 12/15/25Tue 12/16/25Wed 12/17/25
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 35 21 26 5 29 18 38 26 40
TEMP 34 27 28 24 14 9 7 6 27 20 20 23 36 28 28 29 39 32
DEWPT 23 21 23 19 6 -1 -3 -3 3 6 5 6 14 17 17 19 27 26
RH 64 78 81 81 70 63 63 66 35 54 51 47 40 63 63 66 62 78
WIND SPD <15 15> 15> 15> <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 FW FW FW FW FW FW FW SC SC SC B1 B1 B1
POP 12HR 0 20 10 0 0 5 5 10 20
RAIN S
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