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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Mon Oct 19 2026
VAZ012-192000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1001 AM EDT Mon Oct 19 2026
Date Mon 10/19/26 Tue 10/20/26 Wed 10/21/26
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 65 34 69 36 67
TEMP 54 62 62 48 42 40 37 36 60 68 68 51 45 42 39 37 58 66 67 54
DEWPT 32 28 31 34 33 33 31 29 36 33 38 39 38 37 36 36 45 42 42 42
MAX/MIN RH 27 79 27 98 38
RH 43 27 31 58 70 76 79 75 41 27 33 63 76 82 89 96 62 42 40 64
WIND DIR NE N N N N N N N N N N N NW N N N NE N N NW
WIND SPD 1 3 3 2 1 1 1 1 1 2 1 2 1 0 0 0 1 1 1 1
CLOUDS CL CL CL CL CL CL CL CL CL FW FW FW CL CL FW FW CL CL CL CL
CLOUDS(%) 0 0 0 0 0 0 0 2 3 20 14 12 5 3 6 7 3 4 2 1
VSBY 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 0
MIX HGT 1 3 2 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 1 3 3 <1
T WIND DIR NE N N NW NW NW NW W N N N NW NW NW W W N N NW NW
T WIND SPD 4 6 10 4 3 4 3 3 6 11 13 8 4 3 2 2 3 6 9 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 7 24 30 2 2 2 2 3 12 45 44 4 2 2 1 2 6 29 39 3
MAX LVORI 2 2 1 3 3 4 4 4 2 1 1 3 4 5 7 8 3 2 1 3
STABILITY A B A G G G G A A B A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.49 27.48 27.45 27.45 27.42 27.43 27.40 27.41 27.35
Date Thu 10/22/26Fri 10/23/26Sat 10/24/26Sun 10/25/26
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 35 66 36 65 35 62 34 67
TEMP 41 37 66 52 40 38 64 49 40 37 60 49 39 37 64 53
DEWPT 40 36 39 39 37 36 46 43 40 37 43 41 38 36 45 45
RH 96 96 37 61 89 92 52 80100100 53 74 96 96 50 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW CL CL CL CL CL CL CL FW SC FW CL FW FW FW
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