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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EST Sat Nov 22 2025
NCZ003-222100-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 AM EST Sat Nov 22 2025
Date Sat 11/22/25 Sun 11/23/25 Mon 11/24/25
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 72 46 65 35 60
TEMP 65 71 69 60 55 51 48 46 57 64 62 52 47 42 38 36 51 59 58 48
DEWPT 59 56 53 52 51 49 47 45 44 41 40 39 37 36 34 32 34 30 31 32
MAX/MIN RH 57 97 41 88 32
RH 81 59 57 75 86 93 96 96 62 43 44 61 68 79 85 85 52 33 36 54
WIND DIR W W NW N N N N N NW W NW NW NW NW N N E SE SE SE
WIND SPD 3 5 4 4 3 2 2 2 3 5 5 4 3 3 2 2 2 3 2 2
CLOUDS B2 SC SC FW FW FW FW FW CL CL CL CL CL CL FW FW FW FW FW SC
CLOUDS(%) 84 30 31 22 12 22 19 11 5 4 3 2 1 3 8 10 6 15 25 42
VSBY 6 10 10 10 10 9 8 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 0 0 0
RAIN SHWRS IS
MIX HGT <1 4 2 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 1 3 2 <1
T WIND DIR W W W NW N N N N NW W NW NW NW W NW N N S S E
T WIND SPD 5 6 8 6 6 4 2 3 8 12 17 12 6 2 3 3 2 3 5 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 26 19 3 3 2 1 4 20 45 55 6 3 1 2 4 4 11 13 1
MAX LVORI 5 2 2 4 6 6 8 6 2 1 1 3 3 5 5 5 2 2 2 2
STABILITY C C C F G G G B B C C F G G G B B B B F
CEILING None None None None None None None None None
STA PRES 28.86 28.94 28.96 29.03 29.01 29.09 29.13 29.19 29.14
Date Tue 11/25/25Wed 11/26/25Thu 11/27/25Fri 11/28/25
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 40 55 49 65 40 52 29 48
TEMP 43 42 53 53 52 54 62 57 46 40 50 43 34 29 46 40
DEWPT 33 34 44 50 52 53 54 43 35 30 24 22 21 20 18 21
RH 67 73 71 89100 96 75 59 65 67 36 43 58 69 32 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 OV OV B2 B2 B1 B1 SC SC SC FW FW FW FW FW
POP 12HR 0 40 60 30 20 5 5 5
RAIN S C L L
RAIN SHWRS SC IS IS
$$
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