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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Wed Nov 12 2025
NCZ001-130900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
701 PM EST Wed Nov 12 2025
Date 11/12/25 Thu 11/13/25 Fri 11/14/25 Sat
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 34 45 34 53 43
TEMP 43 38 37 35 38 43 43 38 37 36 36 35 45 53 50 44 45 46 46 46
DEWPT 31 30 30 28 28 26 25 26 25 25 24 23 25 26 30 31 34 38 40 43
MIN/MAX RH 79 46 63 35 88
RH 62 73 75 75 67 51 49 62 61 64 61 61 45 35 46 60 65 73 79 89
WIND DIR NW NW NW NW NW NW NW NW NW W W W W W W W W W W W
WIND SPD 28 26 26 26 21 16 13 12 12 12 11 10 6 9 8 9 12 16 18 17
WIND GUST 43
CLOUDS FW SC SC SC FW FW SC SC FW FW FW FW FW FW SC SC SC B1 SC B1
CLOUDS(%) 12 34 48 35 21 17 27 40 23 18 15 18 11 17 28 34 47 52 41 53
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 20
RAIN SHWRS IS
MIX HGT <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 <1 3 1 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW W W
T WIND SPD 17 16 13 13 33 31 25 12 11 10 9 8 20 18 13 6
DISPERSION GD GD GD FR FR FR FR PR FR GD GD
ADI 15 14 12 15 56 66 64 11 10 9 6 6 27 57 26 5
MAX LVORI 4 4 4 4 1 1 1 2 2 3 3 3 2 1 2 3
STABILITY D D D D D D C D D D E C B C B E
CEILING None None None None None None None None None
STA PRES 26.69 26.71 26.76 26.77 26.78 26.80 26.83 26.75
Date 11/15Sun 11/16/25Mon 11/17/25Tue 11/18/25Wed 11/19/25
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 56 48 52 35 49 38 52 41 52
TEMP 55 49 50 50 50 43 39 36 48 39 39 40 51 42 44 42 51 43
DEWPT 47 46 45 46 42 31 27 23 23 25 28 32 38 40 40 39 41 40
RH 74 89 83 86 74 62 62 59 37 57 64 73 61 93 86 89 68 89
WIND SPD <15 15> 15> 15> <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B2 B1 SC FW FW FW FW SC SC B1 B1 B1 B1 B1 B1
POP 12HR 5 20 10 5 5 10 30 30 20
RAIN S C 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
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