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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
631 AM EST Wed Nov 5 2025
NCZ001-052100-
RAWS 310141
36.40N 81.29W Elev. 3009 ft
631 AM EST Wed Nov 5 2025
Date Wed 11/05/25 Thu 11/06/25 Fri 11/07/25
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 65 39 57 35 57
TEMP 42 59 64 62 54 52 49 43 39 49 56 55 44 41 39 37 36 50 56 55 50
DEWPT 29 38 39 35 35 43 44 39 32 29 26 29 31 31 29 28 29 38 43 45 46
MAX/MIN RH 36 84 31 75 62
RH 60 45 40 36 48 71 83 86 76 46 31 37 60 67 67 70 75 63 62 69 86
WIND DIR W W W W W NW NW NW N N NW S S S S S S S S S SW
WIND SPD 3 6 11 11 12 13 11 10 6 4 3 2 2 2 2 2 2 6 10 9 6
WIND GUST 26 24 20
CLOUDS CL FW FW B1 CL FW FW FW FW CL CL CL CL CL CL CL FW SC SC B1 B2
CLOUDS(%) 4 7 23 59 4 15 16 18 7 4 5 3 5 4 3 5 14 35 50 61 71
VSBY 10 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 5
RAIN L
MIX HGT <1 2 3 1 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR W W W W W NW NW NW NW NW NW SW S S S S S SW SW SW SW
T WIND SPD 4 18 21 17 12 23 28 12 9 10 6 2 3 4 5 6 8 8 17 13 8
DISPERSION FR FR FR FR VP VP VP VP PR
ADI 5 40 67 32 11 21 19 8 10 20 22 5 2 2 3 3 8 15 42 23 5
MAX LVORI 3 1 1 1 2 3 4 4 3 2 2 2 3 3 3 3 4 3 1 3 5
STABILITY B B C C D D E E B B B B G G G G B B C D E
CEILING None None None None None None None None None 200
STA PRES 27.32 27.22 27.22 27.28 27.35 27.32 27.31 27.25 27.18 27.08
Date Sat 11/08/25Sun 11/09/25Mon 11/10/25Tue 11/11/25
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 46 62 43 54 24 33 20 38
TEMP 50 46 62 51 46 46 54 42 33 24 32 27 23 21 36 31
DEWPT 48 46 47 45 44 44 42 34 27 19 17 15 15 13 17 18
RH 93100 58 80 93 93 64 73 78 81 53 60 71 71 45 58
WIND SPD <15 <15 <15 <15 <15 15> <15 <15
AVG CLOUDS B2 B2 SC FW FW B1 B1 B1 B1 SC SC FW FW SC FW FW
POP 12HR 60 20 30 30 30 10 5 0
RAIN L L S C C C C S
SNOW 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