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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EST Sat Nov 22 2025
VAZ020-222100-
RAWS 441801
37.99N 79.76W Elev. 2160 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 64 40 59 33 58
TEMP 60 63 60 52 50 46 43 41 50 58 55 45 42 39 35 33 47 57 55 45
DEWPT 55 51 47 44 43 40 39 36 37 35 33 31 31 30 29 28 29 24 25 25
MAX/MIN RH 61 86 40 83 27
RH 84 65 62 74 77 79 86 82 61 42 43 58 65 70 78 82 49 28 31 45
WIND DIR W NW NW NW NW W W W W W W NW NW NW NW NW NW S S S
WIND SPD 3 5 5 2 2 2 2 2 2 3 4 3 2 2 2 2 1 2 2 2
WIND GUST 13
CLOUDS B2 B1 SC FW FW SC FW FW FW FW CL CL FW FW CL CL FW FW SC B1
CLOUDS(%) 77 53 28 22 17 31 19 14 12 6 2 3 7 10 3 5 8 22 31 52
VSBY 9 9 10 8 7 3 5 7 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 5 0 0 0
RAIN SHWRS NM
Obvis PF
MIX HGT 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 <1 2 1 <1
T WIND DIR W NW NW NW NW NW NW W W W NW NW NW NW NW NW W SW S SE
T WIND SPD 10 14 10 9 3 3 4 5 17 28 21 8 9 9 9 5 3 2 6 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 18 36 24 4 2 2 2 6 43112 62 4 4 4 4 6 4 7 13 2
MAX LVORI 3 1 2 4 4 5 6 4 1 1 1 3 3 3 4 4 2 2 2 2
STABILITY D D C G G G G B B B C G G G G B B B B F
CEILING None None None None None None None None None
STA PRES 27.75 27.83 27.83 27.83 27.82 27.90 27.96 28.01 27.98
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 39 54 48 61 36 47 28 42
TEMP 42 40 53 49 51 52 61 50 42 36 46 36 32 28 41 33
DEWPT 29 30 39 42 46 49 46 36 28 25 19 16 17 16 16 14
RH 60 67 59 77 83 89 58 58 57 64 34 43 53 60 36 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 OV B2 B2 B1 SC SC SC FW FW SC SC SC
POP 12HR 0 50 50 30 10 5 5 5
RAIN S C C C
RAIN SHWRS SC 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