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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
531 AM EDT Sun Oct 25 2026
WVZ043-252000-
RAWS 465401
37.53N 81.00W Elev. 2725 ft
531 AM EDT Sun Oct 25 2026
Date Sun 10/25/26 Mon 10/26/26 Tue 10/27/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 61 39 66 40 68
TEMP 38 49 59 60 49 45 42 39 39 53 64 65 52 48 45 42 41 56 66 67 57
DEWPT 38 40 41 39 41 41 42 39 39 40 40 40 42 42 42 41 40 47 45 43 45
MAX/MIN RH 46 100 39 98 41
RH 100 71 51 46 74 86100100100 61 41 40 69 80 89 96 96 72 47 42 64
WIND DIR SE SE SE SE SE S S N N N NW NW NW NW N N N E E E SE
WIND SPD 1 3 4 3 2 2 1 0 0 0 2 3 2 1 0 0 0 1 3 2 2
CLOUDS SC SC CL CL CL CL SC SC SC FW FW CL CL FW SC FW FW FW FW FW FW
CLOUDS(%) 47 44 4 1 2 3 33 46 48 18 19 1 3 15 30 24 15 9 14 21 23
VSBY 9 10 10 10 10 10 9 8 3 5 10 10 10 10 10 1
POP 12HR 0 0 0 0 0
MIX HGT <1 2 3 3 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 1 3 3 <1
T WIND DIR SE SE SE SE SE SE S S SW SW NW NW NW W W W N E E E E
T WIND SPD 3 5 5 4 2 1 1 1 1 1 6 5 3 2 2 1 0 2 6 8 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 3 14 21 17 1 1 1 1 1 2 25 19 2 1 1 1 0 3 24 28 3
MAX LVORI 9 3 2 2 3 6 10 10 10 3 2 2 3 4 7 8 9 3 2 2 3
STABILITY A B B B G G G F A A B B G G G G A A B B G
CEILING None None None None None None None None None None
STA PRES 28.13 28.05 28.01 28.0 27.97 27.89 27.89 27.87 27.90 27.88
Date Wed 10/28/26Thu 10/29/26Fri 10/30/26Sat 10/31/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 45 64 45 69 45 70 47 69
TEMP 48 45 62 56 48 45 67 58 49 46 68 60 50 48 67 60
DEWPT 46 45 50 49 48 45 49 47 46 44 49 48 48 47 52 52
RH 93100 65 77100100 52 67 89 93 51 64 93 96 59 75
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B2 B1 B1 B1 FW CL FW FW SC SC SC B1 B1
POP 12HR 0 0 0 0 0 0 0 0
$$
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