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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Oct 18 2026
VAZ012-190800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Sun Oct 18 2026
Date 10/18/26 Mon 10/19/26 Tue 10/20/26 Wed
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 30 66 34 70 36
TEMP 39 37 34 34 56 65 65 48 43 40 37 37 61 68 67 51 44 41 39 37
DEWPT 29 27 25 23 30 31 34 36 35 34 30 29 36 35 39 38 37 37 36 35
MIN/MAX RH 70 28 78 29 95
RH 67 67 69 64 37 28 31 63 73 79 75 72 39 29 36 61 76 85 89 92
WIND DIR E N N N NE N N N N N N NW N N N NW NW N N N
WIND SPD 1 0 0 0 1 2 1 2 1 1 1 1 1 2 2 2 1 0 0 0
CLOUDS CL CL CL CL CL CL CL CL CL CL CL FW CL CL CL CL CL CL FW FW
CLOUDS(%) 1 2 2 2 3 4 2 2 3 3 3 18 2 4 4 2 3 3 8 9
VSBY 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 1 3 3 <1
T WIND DIR E E N N NE NE N N NW NW NW NW NE NE N N
T WIND SPD 2 2 1 2 8 9 9 4 3 3 3 3 13 11 12 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 2 14 31 27 2 2 2 2 3 24 45 45 3
MAX LVORI 3 3 4 3 2 1 2 3 3 3 4 4 2 1 1 3
STABILITY G G G A A B B G G G G A A B B G
CEILING None None None None None None None None None
STA PRES 27.64 27.60 27.57 27.5 27.48 27.45 27.46 27.43
Date 10/21Thu 10/22/26Fri 10/23/26Sat 10/24/26Sun 10/25/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 68 35 67 36 66 35 63 33 66
TEMP 66 54 43 37 65 52 41 38 65 50 42 37 60 48 39 35 63 52
DEWPT 44 42 39 35 40 39 37 36 45 43 40 36 42 40 37 35 42 42
RH 45 64 86 92 40 61 85 92 48 77 93 96 51 74 92100 46 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL CL CL CL CL CL CL CL CL CL FW FW CL FW FW FW
POP 12HR 0 0 0 0 0 0 0 0 5
$$
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