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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EST Sun Dec 7 2025
NCZ001-072100-
RAWS 310141
36.40N 81.29W Elev. 3009 ft
101 PM EST Sun Dec 7 2025
Date Sun 12/07/25 Mon 12/08/25 Tue 12/09/25
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 43 29 33 19 37
TEMP 42 35 33 33 32 31 29 28 26 24 22 24 21 20 28 36 36 31
DEWPT 33 31 30 31 32 31 29 28 26 24 22 22 21 19 23 25 26 25
MAX/MIN RH 65 100 95 100 63
RH 70 85 89 92100100100100100100100 92100 96 81 64 67 78
WIND DIR S S N N N E E SE SE S SE S SW SW SW SW SW SW
WIND SPD 3 1 1 1 2 2 3 5 4 2 2 1 1 1 3 5 5 4
CLOUDS SC SC B1 B2 OV OV OV OV OV B2 B2 B2 B1 B1 SC SC SC FW
CLOUDS(%) 28 31 59 77 93 96 95 96 94 87 81 79 66 59 44 42 44 20
VSBY 10 10 10 8 3 2 2 3 3 3 3 1 2 3 10 10 10 10
POP 12HR 0 60 90 10 0
RAIN S
SNOW C D L C S
MIX HGT <1 <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 <1 2 <1 <1
T WIND DIR SW NW NW N N E E E E E NE NW W W SW SW SW SW
T WIND SPD 3 2 2 3 3 9 14 10 5 4 2 2 2 2 4 9 9 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 1 1 2 2 8 23 18 8 2 1 1 1 2 5 18 7 2
MAX LVORI 3 6 7 7 10 8 5 5 8 9 10 7 10 8 4 2 3 4
STABILITY B G F F F C C D D F F F F B B C C F
CEILING None 4800 3400 300 300 300 300 None None
STA PRES 27.16 27.15 27.13 27.18 27.21 27.26 27.26 27.27 27.18
Date Wed 12/10/25Thu 12/11/25Fri 12/12/25Sat 12/13/25
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 26 46 29 39 25 36 13 25
TEMP 29 33 46 40 36 29 39 34 32 26 36 29 21 14 23 20
DEWPT 24 23 30 31 30 26 27 26 28 24 22 18 14 7 5 4
RH 81 66 53 70 79 88 62 72 85 92 56 63 74 73 45 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC SC
POP 12HR 0 0 10 20 40 20 20 5
RAIN S C C S 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