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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Fri Oct 23 2026
VAZ012-240800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
301 PM EDT Fri Oct 23 2026
Date 10/23/26 Sat 10/24/26 Sun 10/25/26 Mon
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 35 61 33 64 34
TEMP 62 51 46 42 39 37 49 57 58 49 43 40 37 35 51 60 63 51 42 40 37 35
DEWPT 36 39 39 39 37 37 41 39 38 39 38 37 36 35 44 42 39 43 41 40 37 35
MIN/MAX RH 100 46 100 40 100
RH 38 63 76 89 92100 74 51 47 68 82 89 96100 77 51 41 74 96100100100
WIND DIR E N E E E E E E E E E E E E E SE SE SE N N N N
WIND SPD 2 0 3 3 3 3 3 3 4 4 3 3 2 3 3 2 1 1 0 0 0 0
CLOUDS CL CL CL FW SC B2 SC CL CL CL CL CL SC B1 FW FW CL CL CL FW FW FW
CLOUDS(%) 0 1 2 11 29 74 45 4 4 2 5 5 44 53 19 6 5 2 4 7 21 15
VSBY 10 10 10 10 10 6 10 10 10 10 10 10 10 10 10 10 10 10 9 10 0
POP 12HR 0 0 0 0 0
Obvis PF
MIX HGT 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR NE E E E SE E SE SE E E SE SE SE SE SE SE SE E
T WIND SPD 5 4 4 4 6 6 8 5 3 6 10 10 8 6 5 4 4 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 25 2 2 2 3 5 17 19 12 3 5 5 4 5 14 16 19 2
MAX LVORI 2 3 4 6 6 9 3 2 2 3 4 6 8 9 4 2 2 4
STABILITY B G G G G C B B B F G G F C B B A G
CEILING None None None None None None None None None
STA PRES 27.54 27.57 27.62 27.61 27.64 27.64 27.66 27.60
Date 10/26Tue 10/27/26Wed 10/28/26Thu 10/29/26Fri 10/30/26
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 37 72 41 68 41 71 41 71
TEMP 67 55 43 38 67 55 45 42 64 55 46 43 67 56 46 43 67 56
DEWPT 37 41 39 37 40 44 43 42 45 48 45 42 45 47 45 43 45 47
RH 33 59 86 96 37 66 93100 50 77 96 96 45 72 96100 45 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC SC B1 B1 SC SC SC FW FW FW SC 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