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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
238 AM EDT Tue Oct 13 2026
VAZ018-140800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
238 AM EDT Tue Oct 13 2026
Date 10/12/26 Tue 10/13/26 Wed 10/14/26 Thu
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 55 81 61 84 66
TEMP 59 57 70 77 79 73 69 66 64 63 74 81 83 76 68 68 67 66
DEWPT 53 54 61 60 61 60 59 58 58 58 63 63 64 64 64 63 64 64
MIN/MAX RH 90 52 83 52 93
RH 80 90 73 56 54 64 70 75 81 84 69 54 53 66 87 84 90 93
WIND DIR NW W W W W W W W W W W W W W W W W W
WIND SPD 6 8 6 5 5 6 9 6 9 8 5 5 5 5 2 3 2 1
WIND GUST 12
CLOUDS FW FW CL CL CL CL CL CL CL CL CL FW FW FW SC SC B1 B2
CLOUDS(%) 22 11 2 2 2 1 1 2 1 4 1 8 12 12 36 47 55 76
VSBY 10 6 10 10 10 10 10 10 10 7 7 7 7 7 7 7 7 7
POP 12HR 0 0 0 0 10
RAIN SHWRS NM
Obvis PF
MIX HGT <1 <1 2 4 4 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR W W W W W W W W NW NW NW W W W
T WIND SPD 5 5 6 16 16 4 6 9 9 8 17 19 10 6
DISPERSION PR PR PR PR PR PR VP VP VP
ADI 3 6 17 76 72 2 3 4 4 8 48 78 39 3
MAX LVORI 6 6 3 1 1 5 5 5 5 4 3 1 1 5
STABILITY G B B B B G F F F B B B B G
CEILING None None None None None None None None
STA PRES 27.81 27.83 27.79 27.82 27.82 27.86 27.83
Date 10/15Fri 10/16/26Sat 10/17/26Sun 10/18/26Mon 10/19/26
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 77 64 78 43 57 36 61 39 66
TEMP 76 66 66 66 75 57 50 44 55 45 40 37 58 49 42 40 64 54
DEWPT 69 65 63 63 62 48 39 34 34 33 32 30 36 37 34 32 44 44
RH 79 97 90 90 64 72 66 68 45 62 73 75 44 63 73 73 48 69
WIND SPD <15 <15 <15 15> <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 SC SC SC SC SC SC FW CL CL CL CL CL FW FW SC
POP 12HR 80 30 20 5 0 0 0 0 0
RAIN SHWRS NM O SC IS
TSTMS IS IS
$$
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