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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Oct 22 2026
VAZ018-230800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Thu Oct 22 2026
Date 10/22/26 Fri 10/23/26 Sat 10/24/26 Sun
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 39 67 41 63 39
TEMP 50 46 44 42 55 63 65 56 51 47 45 42 53 60 61 53 43 43 40 40
DEWPT 31 31 35 37 43 44 43 42 39 36 35 33 45 44 39 39 40 39 38 36
MIN/MAX RH 85 44 71 44 91
RH 48 55 70 82 64 50 45 59 63 65 68 70 74 55 44 59 89 86 92 85
WIND DIR N N N N NE E E E SE E E E E SE E SE SE N N N
WIND SPD 5 4 4 4 5 5 5 3 3 2 1 2 2 3 3 1 1 0 0 0
CLOUDS CL CL CL FW FW FW FW FW FW FW FW SC FW CL CL CL CL FW FW FW
CLOUDS(%) 0 0 0 6 9 17 19 17 15 8 19 48 21 0 0 0 4 9 16 8
VSBY 10 10 10 10 10 10 10 10 10 9 8 0 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N NW NW NW E E E E E E E E E E E E
T WIND SPD 5 4 3 3 8 4 4 9 11 10 8 8 6 5 5 3
DISPERSION PR VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 4 21 19 19 4 5 5 4 8 20 22 21 2
MAX LVORI 2 3 3 5 3 2 2 3 3 3 3 3 3 2 2 3
STABILITY F F F 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 27.95 27.98 28.05 28.06 28.12 28.17 28.22 28.20
Date 10/25Mon 10/26/26Tue 10/27/26Wed 10/28/26Thu 10/29/26
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 64 39 70 45 70 48 65 47 68
TEMP 63 52 44 40 68 56 48 46 69 58 51 48 63 55 50 48 66 57
DEWPT 46 44 40 36 44 44 42 39 49 48 46 44 51 48 46 44 51 49
RH 54 74 86 85 42 64 80 76 49 69 83 86 65 77 86 86 58 75
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW FW CL FW FW FW FW SC SC B1 B1 SC B1 SC SC
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