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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Fri Oct 23 2026
VAZ012-240800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 AM EDT Fri Oct 23 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 61 34 62 32
TEMP 41 39 53 60 60 47 43 40 38 35 47 55 57 47 43 38 35 33
DEWPT 30 29 37 36 38 39 39 38 37 35 42 41 40 38 38 36 33 31
MIN/MAX RH 79 40 100 45 94
RH 65 67 54 41 44 74 86 92 96100 83 59 53 71 82 92 92 92
WIND DIR NE N E E E E E E E E E SE E E SE E N N
WIND SPD 1 0 1 1 1 1 1 1 1 1 2 1 1 2 1 1 0 0
CLOUDS FW FW CL CL CL CL FW FW SC B1 SC FW CL CL CL CL FW FW
CLOUDS(%) 8 7 2 3 3 5 10 16 42 62 47 7 3 1 2 1 8 14
VSBY 10 10 10 10 10 10 10 10 10 5 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 2 3 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1
T WIND DIR NE E E E E E E E E E E SE E E SE SE SE SE
T WIND SPD 6 6 6 5 6 8 9 9 8 6 6 5 5 8 8 8 5 4
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 3 7 16 25 31 4 4 4 4 5 16 20 21 4 4 4 3 4
MAX LVORI 3 3 2 2 1 3 5 6 8 9 3 2 2 3 5 6 6 6
STABILITY G A A A A G G G F C B A A G G G G A
CEILING None None None None None None None None None
STA PRES 27.45 27.50 27.50 27.58 27.61 27.65 27.62 27.67 27.68
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 62 33 69 35 70 38 66 37 69
TEMP 59 50 39 34 65 53 42 38 66 55 45 40 62 52 44 40 65 54
DEWPT 38 40 37 32 32 37 37 34 38 43 42 40 41 43 41 40 42 46
RH 45 68 92 92 29 54 82 85 36 64 89100 46 71 89100 43 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW CL CL CL FW FW FW FW SC B1 SC SC SC SC SC
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