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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Mon Oct 12 2026
VAZ046-122000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
301 AM EDT Mon Oct 12 2026
Date Mon 10/12/26 Tue 10/13/26 Wed 10/14/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 80 54 83 61 88
TEMP 62 63 72 78 78 69 64 60 58 56 73 81 81 71 67 65 63 62 79 87 86 75
DEWPT 61 59 61 61 61 60 58 57 55 56 63 64 66 64 63 62 60 60 66 68 70 68
MAX/MIN RH 53 100 56 95 54
RH 97 87 68 56 56 73 81 90 90100 71 56 60 79 87 90 90 93 64 53 59 79
WIND DIR NW W N N N NW W W W W SW SW SW S SW SW SW SW W W SW SW
WIND SPD 6 5 6 8 5 1 1 1 1 3 4 6 6 5 5 5 5 5 6 6 5 5
WIND GUST 16
CLOUDS SC FW FW FW SC FW FW FW FW CL CL CL CL CL CL CL CL CL CL CL FW FW
CLOUDS(%) 39 11 9 20 42 9 12 9 7 4 1 1 3 1 1 1 1 2 1 3 14 13
VSBY 7 9 10 10 10 10 10 9 7 6 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
MIX HGT <1 <1 3 4 3 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR W W NW N NW NW W W W SW W W SW SW SW SW SW SW NW W W SW
T WIND SPD 4 4 13 12 9 2 3 3 2 1 5 10 13 4 5 5 5 4 9 9 14 4
DISPERSION PR VP VP VP VP PR PR PR PR PR
ADI 2 5 52 64 35 1 2 2 1 1 11 40 47 2 3 3 3 5 21 38 48 2
MAX LVORI 9 5 1 1 1 3 5 7 7 10 3 1 1 4 6 6 6 6 2 1 1 5
STABILITY F B B B B G G G G B B B B F F F F B B B B F
CEILING None None None None None None None None None None
STA PRES 29.24 29.25 29.29 29.31 29.32 29.27 29.28 29.31 29.33 29.27
Date Thu 10/15/26Fri 10/16/26Sat 10/17/26Sun 10/18/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 65 79 62 82 47 59 36 59
TEMP 68 66 78 71 64 63 80 66 54 48 56 48 40 37 57 50
DEWPT 66 63 66 65 63 63 65 55 45 38 36 35 33 31 35 37
RH 93 90 67 81 97100 60 68 71 68 47 60 76 79 43 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B1 B1 B1 B1 SC SC SC FW FW FW CL CL CL
POP 12HR 5 10 10 10 10 5 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