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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Oct 22 2026
VAZ012-230800-
RAWS 447502
37.01N 81.18W Elev. 2540 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 34 68 36 65 34
TEMP 46 42 39 37 53 63 65 55 48 44 41 39 52 61 62 52 40 38 35 35
DEWPT 33 31 29 32 40 40 40 41 38 37 33 32 43 39 37 41 40 38 35 34
MIN/MAX RH 81 38 77 38 100
RH 60 65 67 82 61 43 40 59 68 76 73 76 71 44 39 66100100100 96
WIND DIR NW N N NE E E E E E E E E SE SE E E SE N N N
WIND SPD 3 2 2 2 3 4 4 3 3 3 2 2 2 1 1 2 1 0 0 0
CLOUDS CL CL CL CL CL CL CL CL FW FW FW B1 FW CL CL CL CL CL FW FW
CLOUDS(%) 0 0 0 0 0 0 0 0 6 6 19 51 15 0 0 1 3 4 9 16
VSBY 10 10 10 10 10 10 10 10 10 10 9 10 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 2 3 <1
T WIND DIR N N N N NE E E E SE SE E E E E E E
T WIND SPD 4 2 2 1 1 5 5 4 6 12 11 8 5 4 5 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 1 3 22 23 2 3 6 5 6 12 14 19 2
MAX LVORI 3 3 3 5 3 2 2 3 3 3 3 4 3 2 2 3
STABILITY G G G B B B B G G G G C B A A G
CEILING None None None None None None None None None
STA PRES 27.40 27.43 27.49 27.49 27.54 27.58 27.64 27.62
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 35 70 38 70 41 67 42 69
TEMP 60 49 40 36 66 52 43 39 66 54 45 43 63 53 45 43 64 54
DEWPT 41 44 39 36 38 43 40 38 42 46 44 42 46 48 45 42 46 48
RH 49 83 96100 36 71 89 96 42 74 96 96 54 83100 96 52 80
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL CL FW CL FW FW FW SC SC SC B1 SC SC SC SC SC
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