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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Sun Oct 18 2026
VAZ012-190800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 AM EDT Sun Oct 18 2026
Date 10/17/26 Sun 10/18/26 Mon 10/19/26 Tue
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 29 57 32 64 35
TEMP 31 32 47 54 56 44 40 37 35 34 53 62 63 51 42 40 38 36
DEWPT 26 24 24 26 28 30 28 26 25 23 29 30 34 35 34 32 31 29
MIN/MAX RH 84 33 67 30 80
RH 81 72 40 34 34 57 62 64 66 64 39 30 34 54 73 73 76 75
WIND DIR NE E E E E E E SE E NE NE N N N NW NW NW NW
WIND SPD 3 3 6 6 4 2 2 2 1 2 3 4 5 4 1 1 1 1
CLOUDS CL CL CL CL CL CL CL CL CL CL CL FW CL CL FW CL CL CL
CLOUDS(%) 3 2 2 3 3 2 3 2 3 2 3 7 3 1 6 3 4 3
VSBY 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 2 3 2 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1
T WIND DIR N N E E E E E NE N N N N N N NW NW NW NW
T WIND SPD 2 1 16 11 10 3 2 2 2 2 8 12 12 8 4 4 4 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 1 1 38 40 29 2 1 1 1 2 14 45 41 4 2 2 2 4
MAX LVORI 5 3 1 1 2 3 3 3 3 3 2 1 1 3 3 4 4 4
STABILITY G B B B B G G G G B B B B F G G G A
CEILING None None None None None None None None None
STA PRES 27.61 27.68 27.63 27.61 27.57 27.53 27.45 27.43 27.40
Date 10/20Wed 10/21/26Thu 10/22/26Fri 10/23/26Sat 10/24/26
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 69 35 68 36 67 36 65 37 64
TEMP 66 54 41 36 65 53 41 37 64 53 43 39 63 50 43 39 61 52
DEWPT 34 38 36 34 40 41 38 35 40 42 39 36 42 43 41 38 44 44
RH 30 54 82 92 40 64 89 92 41 66 86 89 46 77 93 96 53 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL CL FW FW FW FW CL CL CL FW FW CL CL 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