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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Oct 19 2026
VAZ018-200800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 PM EDT Mon Oct 19 2026
Date 10/19/26 Tue 10/20/26 Wed 10/21/26 Thu
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 43 72 44 70 41
TEMP 63 57 52 49 47 46 59 68 69 56 51 50 46 45 59 69 66 54 48 46 43 42
DEWPT 31 35 35 34 32 30 35 38 44 45 45 45 43 42 49 49 49 45 44 43 42 40
MIN/MAX RH 57 33 95 49 98
RH 30 43 52 56 56 53 40 33 40 66 80 83 89 89 69 49 54 71 86 89 96 93
WIND DIR NE N N N N N N N N N N N NW NW N N N NW NW NW NW NW
WIND SPD 3 3 5 5 5 5 3 3 2 2 2 2 2 2 1 2 1 2 2 2 3 3
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW
CLOUDS(%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 10 8
VSBY 10 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 2 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N N NW NW NW NW N N N NW NW NW NW NW N N NW NW
T WIND SPD 8 2 4 5 5 4 9 9 9 4 4 3 3 3 5 8 8 6
DISPERSION VP PR PR PR VP VP VP VP VP VP VP VP
ADI 17 1 2 3 3 5 15 34 22 2 2 2 2 4 12 33 35 3
MAX LVORI 2 2 2 3 3 2 2 1 2 3 5 5 6 6 3 1 1 3
STABILITY B G F F F B B B B G G G G B A B A G
CEILING None None None None None None None None None None
STA PRES 28.04 28.03 28.01 28.01 27.96 27.98 27.95 27.94 27.85
Date 10/22Fri 10/23/26Sat 10/24/26Sun 10/25/26Mon 10/26/26
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 70 45 65 41 61 42 65 44 71
TEMP 69 57 48 46 62 51 45 42 58 50 44 43 63 54 48 45 69 59
DEWPT 43 43 43 43 50 44 42 40 46 42 41 41 48 44 42 40 49 47
RH 39 59 83 89 65 77 89 93 64 74 89 93 58 69 80 82 49 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL CL CL CL FW FW FW CL FW FW FW FW FW FW FW
POP 12HR 0 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