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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EST Tue Nov 4 2025
VAZ046-050900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
731 PM EST Tue Nov 4 2025
Date 11/04/25 Wed 11/05/25 Thu 11/06/25 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 40 71 44 62 34
TEMP 49 43 41 42 59 69 69 63 59 56 49 44 56 61 60 48 42 38 35 35
DEWPT 28 29 32 33 38 40 41 43 42 45 38 34 32 29 29 31 31 31 31 31
MIN/MAX RH 71 34 69 29 87
RH 44 57 70 70 45 35 36 48 53 66 66 68 40 29 31 51 65 76 85 85
WIND DIR SW SW SW SW SW SW SW SW W W NW NW N NW W SE S S S S
WIND SPD 3 3 5 6 11 16 16 14 10 8 6 5 5 4 3 2 2 2 3 4
WIND GUST 21 31 32 25 21 18
CLOUDS CL CL FW FW FW FW FW CL CL FW FW FW FW FW CL CL FW FW FW FW
CLOUDS(%) 2 5 18 9 8 22 17 2 3 14 10 6 11 7 4 3 6 16 14 10
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 0
MIX HGT <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 4 4 4 <1
T WIND DIR SW SW SW SW SW SW SW SW W NW NW NW NW NW W S
T WIND SPD 4 3 3 6 18 26 27 12 10 10 8 3 8 6 5 2
DISPERSION VP VP PR GD FR PR PR VP VP VP VP
ADI 2 2 2 7 24 61 52 11 7 7 4 4 35 35 29 1
MAX LVORI 2 3 3 3 2 1 1 2 3 3 3 3 1 1 2 2
STABILITY G G F B C D D D E E F B B B B G
CEILING None None None None None None None None None
STA PRES 29.56 29.49 29.38 29.21 29.25 29.42 29.51 29.48
Date 11/07Sat 11/08/25Sun 11/09/25Mon 11/10/25Tue 11/11/25
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 64 52 71 47 68 39 50 29 48
TEMP 61 59 57 52 70 57 50 48 65 59 47 40 50 40 34 29 47 40
DEWPT 40 47 51 50 48 47 45 46 52 47 40 32 27 25 22 20 21 23
RH 46 64 80 93 45 69 83 93 63 64 76 73 41 55 61 69 35 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 SC FW FW SC B1 B1 SC SC FW SC SC FW FW FW
POP 12HR 0 50 10 20 30 20 10 5 0
RAIN SHWRS SC SC IS IS SC IS IS
TSTMS 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
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