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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Mon Nov 24 2025
NCZ001-250900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1231 AM EST Mon Nov 24 2025
Date 11/23/25 Mon 11/24/25 Tue 11/25/25 Wed
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 36 50 41 52 49
TEMP 39 38 36 43 49 47 42 42 41 43 41 47 50 52 51 51 51 51 51
DEWPT 34 30 26 31 32 33 32 34 34 37 40 43 46 47 48 50 51 50 49
MIN/MAX RH 85 51 95 78 99
RH 82 73 67 62 52 58 67 73 76 79 96 86 86 83 89 96100 96 93
WIND DIR NW W SW S S S S S S S S S S S S SW SW SW W
WIND SPD 5 4 2 5 8 8 6 9 10 12 14 12 10 9 10 10 11 11 13
CLOUDS FW FW SC SC FW SC SC B1 B2 B2 OV OV OV OV OV OV B2 B2 B2
CLOUDS(%) 7 10 40 28 20 50 47 61 77 80100100100100 90 90 82 77 77
VSBY 10 10 10 10 10 10 10 10 10 10 10 5 10 10 7
POP 12HR 0 0 10 80 70
RAIN D D D D L L L L C
MIX HGT <1 <1 <1 <1 2 1 <1 <1 <1 <1 <1 <1 1 <1 <1
T WIND DIR NW NW NW S S S S S S S S S S S SW
T WIND SPD 4 3 2 8 8 6 10 11 12 5 4 5 9 8 6
DISPERSION PR VP PR PR FR FR FR FR FR FR
ADI 2 2 2 6 16 10 7 10 11 5 5 6 12 9 6
MAX LVORI 5 3 3 3 2 2 3 3 4 4 7 5 4 4 5
STABILITY F F B C C C E D D D D D D D D
CEILING None None None 9500 500 400 400 400
STA PRES 26.83 26.86 26.82 26.82 26.76 26.73 26.67
Date 11/26Thu 11/27/25Fri 11/28/25Sat 11/29/25Sun 11/30/25
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 52 24 31 21 32 23 38 27 41
TEMP 51 40 30 25 30 25 23 21 28 25 25 25 36 29 28 30 37 36
DEWPT 46 31 21 15 10 10 12 9 8 9 12 11 15 17 19 21 27 30
RH 83 70 69 65 42 52 62 59 42 50 57 55 42 60 68 69 67 79
WIND SPD 15> 15> 15> 15> 15> <15 <15 <15 <15
AVG CLOUDS B2 B1 SC SC SC FW FW FW FW FW SC SC SC B1 B1 B1 B1 B1
POP 12HR 30 5 0 0 0 0 5 20 20
RAIN C S S
SNOW S 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