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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 PM EST Sun Dec 7 2025
VAZ018-080900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
201 PM EST Sun Dec 7 2025
Date 12/07/25 Mon 12/08/25 Tue 12/09/25 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 30 35 18 41 31
TEMP 45 35 34 33 32 31 30 29 27 23 21 21 19 19 31 40 39 33 32 33 35 37
DEWPT 34 31 29 29 30 30 30 28 24 20 19 16 15 15 23 27 28 26 25 25 26 26
MIN/MAX RH 97 88 93 58 75
RH 65 85 82 85 92 96100 96 88 88 92 81 84 84 72 59 64 75 75 72 69 64
WIND DIR S NW NW N NE E E E E E E S SW SW SW SW S SW SW SW SW SW
WIND SPD 2 1 1 1 2 2 4 4 3 2 1 1 1 1 2 4 4 4 4 5 6 8
WIND GUST 12 14 14 17 20 21 25 29
CLOUDS FW FW B1 OV OV OV OV OV OV B2 B2 B1 B1 B1 SC SC SC SC SC B1 B1 B1
CLOUDS(%) 13 10 53 92 94 90 94 97 89 75 72 69 63 53 41 40 46 33 40 57 64 66
VSBY 10 10 10 10 2 1 0 1 1 1 0 5 7 10 9 9 9 9
POP 12HR 50 90 10 0 0
SNOW C L L L C
MIX HGT <1 <1 <1 <1 <1 1 1 2 1 <1 <1 <1 <1 <1 <1 2 1 <1
T WIND DIR S E NW N NE E E NE NE NE N NW W W SW SW SW S
T WIND SPD 6 1 1 2 10 11 18 14 9 8 2 2 1 1 4 10 12 4
DISPERSION VP VP VP VP VP VP VP VP VP VP PR PR
ADI 8 1 1 1 5 14 28 27 15 4 1 1 1 1 6 25 20 2
MAX LVORI 3 6 6 5 6 5 4 4 5 6 7 5 6 6 3 2 3 4
STABILITY B G F F F C D D C F F F F C B C C F
CEILING 6700 3500 300 1200 2400 2200 None None None
STA PRES 27.76 27.76 27.82 27.86 27.90 27.87 27.87 27.74
Date 12/10Thu 12/11/25Fri 12/12/25Sat 12/13/25Sun 12/14/25
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 50 31 41 27 39 16 29 14 30
TEMP 50 42 37 32 40 34 32 28 38 29 23 17 28 20 17 15 29 20
DEWPT 34 32 29 25 28 26 25 22 23 18 13 7 9 7 5 5 8 5
RH 54 67 72 75 62 72 75 78 54 63 65 64 44 56 58 64 40 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B1 B2 B2 B1 B1 B1 B1 B1 SC SC SC SC SC SC
POP 12HR 10 30 30 50 30 30 10 10 10
RAIN C S C C C C
SNOW C C C C C C 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