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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EST Sat Nov 29 2025
NCZ001-292100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1001 AM EST Sat Nov 29 2025
Date Sat 11/29/25 Sun 11/30/25 Mon 12/01/25
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 32 25 40 20 35
TEMP 29 29 25 26 26 31 34 35 39 37 34 31 26 23 21 27 35 32 27
DEWPT 11 12 10 10 12 20 27 33 38 36 32 27 22 18 15 14 15 15 16
MAX/MIN RH 46 83 58 94 44
RH 46 48 52 50 55 63 75 92 96 96 92 85 85 81 77 57 43 49 63
WIND DIR SE SE S S S S SW SW W W NW NW NW NW N E SE SE SE
WIND SPD 9 10 13 14 14 14 14 10 10 11 18 20 20 17 10 6 6 5 6
CLOUDS FW SC B2 B1 SC B2 B2 B2 OV B2 B1 SC SC SC SC SC SC B1 B1
CLOUDS(%) 8 28 70 55 50 76 86 85 91 74 60 50 41 28 30 29 39 53 67
VSBY 10 10 10 10 10 9 6 6 7 7 10 10 10 10 10 10 10 10 6
POP 12HR 0 30 50 5 5
FRZG RAIN S
RAIN C C C C
SNOW S S
MIX HGT 1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 2 <1 <1
T WIND DIR S S S S S S S SW W W NW NW NW NW N SE SE SE SE
T WIND SPD 10 10 13 16 14 6 6 8 12 17 20 17 17 11 6 2 8 6 9
DISPERSION FR GD GD GD GD GD GD GD PR
ADI 18 11 12 14 13 6 8 9 14 23 19 15 15 10 5 2 17 8 6
MAX LVORI 2 2 2 2 2 3 3 6 5 5 5 4 4 4 4 3 2 2 3
STABILITY C C D D D D D D D D D D D D C C C C E
CEILING None 10200 2900 400 400 None None None None
STA PRES 26.89 26.85 26.80 26.75 26.74 26.80 26.85 26.88 26.82
Date Tue 12/02/25Wed 12/03/25Thu 12/04/25Fri 12/05/25
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 27 37 25 37 26 35 25 35
TEMP 28 32 37 33 27 25 36 28 27 28 34 28 27 26 33 31
DEWPT 21 28 36 31 26 21 24 23 22 22 22 20 20 20 26 27
RH 75 85 96 92 96 84 61 81 81 78 61 71 74 78 75 85
WIND SPD <15 <15 15> <15 <15 <15 <15 <15
AVG CLOUDS B2 OV OV B2 B2 B1 SC FW FW SC B1 SC B1 B1 B2 B2
POP 12HR 80 90 20 0 5 5 10 30
FRZG RAIN D
RAIN D C S C
SNOW S D 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
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