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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sat Oct 17 2026
VAZ018-180800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Sat Oct 17 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 36 59 38 66 41
TEMP 41 39 37 37 50 58 57 46 43 42 40 39 56 65 64 51 47 46 44 43
DEWPT 30 28 26 24 26 29 31 30 28 27 26 25 31 35 39 37 35 33 32 31
MIN/MAX RH 64 33 59 32 66
RH 65 64 64 59 39 33 37 53 55 55 57 57 38 33 40 59 63 60 62 62
WIND DIR N NE NE NE E E E NE NE N N NW N NE NE N NW NW NW NW
WIND SPD 4 3 3 4 4 4 3 1 1 1 2 2 2 3 2 1 3 3 3 3
WIND GUST 16 16 16
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW CL FW FW FW FW
CLOUDS(%) 1 2 2 3 1 5 2 1 2 3 1 1 3 5 6 5 7 8 12 12
VSBY 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N NW N N NE NE NE NE NE N N N NE NE NE N
T WIND SPD 6 3 3 3 13 10 11 3 3 4 4 4 12 13 13 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 4 35 38 36 2 2 2 2 5 28 52 44 2
MAX LVORI 3 3 3 3 1 1 1 2 2 3 3 3 2 1 1 3
STABILITY F G G B B B B G G G G B B B B G
CEILING None None None None None None None None None
STA PRES 28.13 28.18 28.25 28.20 28.19 28.15 28.12 28.04
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 72 43 68 42 69 45 67 46 66
TEMP 71 56 48 44 66 56 47 44 67 57 49 46 66 54 50 46 63 56
DEWPT 36 39 37 36 43 42 40 38 44 43 42 40 45 44 43 42 48 45
RH 28 53 65 73 43 59 76 79 43 59 77 79 47 69 77 86 58 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW FW CL FW FW CL CL FW FW FW CL FW FW FW
POP 12HR 0 0 0 0 0 0 0 5 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