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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 PM EST Tue Dec 9 2025
VAZ018-100900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
331 PM EST Tue Dec 9 2025
Date 12/09/25 Wed 12/10/25 Thu 12/11/25 Fri
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 26 46 27 35 24
TEMP 32 26 26 29 33 35 40 45 39 39 36 33 30 28 31 34 32 27 26 25 26 27
DEWPT 26 23 22 24 24 26 29 33 34 33 29 25 22 20 20 20 19 18 17 17 19 20
MIN/MAX RH 88 61 88 57 77
RH 78 88 85 81 69 69 64 62 82 79 75 72 72 71 63 56 58 68 68 71 74 74
WIND DIR S W SW W W SW SW W W W W W W NW NW W W W W W W SW
WIND SPD 3 2 3 3 4 6 8 9 9 10 12 13 13 12 10 9 8 6 5 5 4 4
WIND GUST 12 14 16 21 27 29 27 29 33 37 40 40 37 33 25 25 24 21 19 18 17
CLOUDS B1 SC B1 B1 B2 B2 B1 B2 B1 B1 B2 B1 B1 SC SC SC SC SC B1 B2 B2 B2
CLOUDS(%) 51 31 51 51 73 76 53 72 61 57 73 67 59 49 40 37 32 42 51 70 74 74
VSBY 10 9 10 10 10 10 10 8 8 8 7 8 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 50 40 5 20
FLURRIES SC SC SC
RAIN C S S C
SNOW C
MIX HGT 1 <1 <1 <1 <1 <1 1 3 2 1 2 2 2 2 3 3 3 <1
T WIND DIR S S S SW SW SW SW W W W W NW NW NW NW NW W W
T WIND SPD 11 4 4 4 5 9 13 31 19 19 31 39 39 37 35 27 21 19
DISPERSION VP VP VP VP FR FR FR FR PR PR PR VP
ADI 14 2 2 2 4 10 23 71 41 22 35 44 44 63110 90 63 13
MAX LVORI 4 6 5 4 3 3 2 1 4 3 3 3 3 3 1 1 1 3
STABILITY C G F F E D D D D D D D D D C C C E
CEILING 3100 9100 9600 2200 1700 1800 None None None
STA PRES 27.65 27.51 27.35 27.31 27.37 27.49 27.61 27.66
Date 12/12Sat 12/13/25Sun 12/14/25Mon 12/15/25Tue 12/16/25
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 39 32 45 33 36 14 34 22 42
TEMP 37 34 35 33 43 35 36 35 33 22 16 15 33 25 24 24 41 31
DEWPT 29 29 29 28 32 28 30 29 20 11 6 6 12 14 14 16 24 21
RH 72 82 78 82 65 75 79 78 58 62 64 67 41 62 65 71 50 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B1 B1 SC B1 B1 SC SC SC FW FW SC SC SC SC SC
POP 12HR 50 30 10 40 20 5 5 20 10
RAIN C C S C S
SNOW C C 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