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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EST Tue Nov 18 2025
VAZ018-182100-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 PM EST Tue Nov 18 2025
Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25
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 58 45 65 45 62
TEMP 55 47 47 47 49 50 57 63 62 52 49 47 46 45 52 59 60 53
DEWPT 27 27 31 41 45 47 51 52 51 48 45 43 42 42 46 50 50 47
MAX/MIN RH 30 92 63 89 68
RH 34 45 53 79 86 89 80 67 67 86 86 86 86 89 80 72 69 80
WIND DIR S SW SW W W W W W W W S SE SE S S SW SW S
WIND SPD 3 2 2 2 2 2 2 3 2 2 1 2 1 1 2 3 2 1
WIND GUST 12
CLOUDS B2 OV OV B2 B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B2 SC B2
CLOUDS(%) 79 90 92 78 53 52 55 43 45 65 52 74 83 79 74 75 50 80
VSBY 10 10 10 6 9 7 9 9 10 9 8 10 10 10 10 10 10 10
POP 12HR 30 90 0 10 0
RAIN C D C
MIX HGT 1 <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 <1 2 1 <1
T WIND DIR S SE S NW NW W NW W W SE SE S S S S S S SW
T WIND SPD 6 4 4 2 3 5 8 6 3 2 4 6 5 4 5 4 2 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 8 2 2 1 1 4 15 19 9 1 2 3 3 4 6 11 4 1
MAX LVORI 2 2 2 4 6 5 4 3 3 6 5 6 6 6 4 3 3 4
STABILITY C F F F F C C B B F F F F C C C B F
CEILING 5900 4500 300 None None None 0 0 0
STA PRES 27.83 27.76 27.77 27.85 27.88 27.90 27.89 27.89 27.84
Date Fri 11/21/25Sat 11/22/25Sun 11/23/25Mon 11/24/25
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 51 65 51 62 41 58 39 61
TEMP 52 52 63 55 55 52 59 50 45 42 57 47 42 40 59 48
DEWPT 47 48 54 52 50 48 49 43 41 38 39 37 35 34 39 36
RH 83 86 72 90 83 86 69 77 86 86 51 68 76 79 47 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC FW FW FW FW SC
POP 12HR 30 40 60 50 20 10 10 10
RAIN C C C C L 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