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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EST Wed Nov 5 2025
NCZ001-052100-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1001 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 58 38 53 38 54
TEMP 57 56 49 48 47 42 39 44 52 50 40 40 40 40 39 46 53 50 47
DEWPT 35 32 34 41 41 38 32 26 22 26 30 30 28 28 30 37 42 43 44
MAX/MIN RH 39 87 30 71 63
RH 43 40 56 77 79 86 76 49 31 39 67 67 62 62 70 71 66 77 89
WIND DIR W W W NW NW NW NW NW NW SW S S S S S S S S S
WIND SPD 19 20 25 27 26 21 14 6 3 2 3 5 9 10 10 10 11 10 12
WIND GUST 34 35
CLOUDS FW B1 CL FW SC FW FW CL FW CL CL CL CL FW FW SC B1 B1 B2
CLOUDS(%) 14 54 3 20 44 25 18 3 7 5 5 5 5 6 13 34 54 69 77
VSBY 10 10 10 10 9 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 2 1 <1 <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR W W W W NW NW NW NW NW S S S S S S S S S SW
T WIND SPD 27 25 16 25 23 27 10 9 6 3 8 6 6 8 9 14 14 11 6
DISPERSION GD GD GD GD VP PR PR FR FR
ADI 55 40 14 23 21 25 11 12 19 8 4 3 5 5 7 21 28 20 6
MAX LVORI 1 1 2 3 3 4 4 2 2 2 3 3 3 3 3 3 2 3 5
STABILITY D D D D D D D B B B G F E E C C D D D
CEILING None None None None None None None None 1700
STA PRES 26.71 26.72 26.75 26.82 26.78 26.76 26.69 26.64 26.53
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 57 44 49 22 28 20 32
TEMP 50 49 56 47 46 46 46 36 31 23 25 22 22 20 30 26
DEWPT 47 47 44 43 42 43 40 32 26 18 14 13 14 12 15 17
RH 89 93 64 86 86 89 79 85 81 81 62 68 71 71 53 68
WIND SPD 15> <15 <15 15> 15> 15> 15> 15>
AVG CLOUDS B2 B2 SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC FW
POP 12HR 70 20 30 30 30 10 5 0
RAIN L L S S C C C C
SNOW C 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