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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Tue Oct 13 2026
VAZ046-132000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
731 AM EDT Tue Oct 13 2026
Date Tue 10/13/26 Wed 10/14/26 Thu 10/15/26
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 83 61 88 65 76
TEMP 57 70 77 79 74 69 66 64 63 76 84 86 78 71 69 67 65 72 74 71 66
DEWPT 55 61 62 62 62 62 62 61 60 64 63 65 65 66 66 65 64 66 66 66 65
MAX/MIN RH 54 92 48 96 75
RH 93 73 60 56 66 78 87 90 90 66 49 50 64 84 90 93 97 81 76 84 97
WIND DIR W W SW SW SW SW SW SW W W SW SW SW W W NE NE NE NE NE NE
WIND SPD 4 4 5 6 6 5 4 5 5 5 5 5 5 3 3 4 5 8 6 5 3
CLOUDS FW CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC B1 B2 B2 B2 B2
CLOUDS(%) 18 2 1 1 1 0 1 2 0 1 3 6 7 17 27 39 54 74 76 82 76
VSBY 10 10 10 10 10 10 10 10 8 7 7 7 7 7 7 7 7 10 10 10 10
POP 12HR 0 0 0 5 30
RAIN SHWRS SC SC SC SC IS
MIX HGT <1 1 3 3 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 2 2 1 1
T WIND DIR W W W SW S SW SW SW SW W W W SW SW W W NE E NE NE NE
T WIND SPD 2 3 9 11 4 4 4 5 4 8 12 16 4 4 3 2 3 9 11 13 9
DISPERSION PR PR VP PR PR VP VP VP VP
ADI 2 5 38 44 2 2 2 3 5 19 56 54 2 2 2 1 4 16 19 21 4
MAX LVORI 6 3 1 1 3 4 5 6 6 3 1 1 3 5 7 7 8 3 3 4 7
STABILITY B B B B F F F F B B B B F G G F D D D D F
CEILING None None None None None None None None 400 400
STA PRES 29.32 29.28 29.31 29.31 29.33 29.28 29.32 29.34 29.38 29.37
Date Fri 10/16/26Sat 10/17/26Sun 10/18/26Mon 10/19/26
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 61 84 47 61 37 61 38 66
TEMP 63 64 81 65 53 47 58 49 41 38 57 50 42 41 64 56
DEWPT 63 64 66 54 44 39 37 36 34 33 36 39 38 38 47 48
RH 100100 60 68 71 74 45 61 76 82 45 66 86 89 54 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC SC FW FW CL CL CL CL CL CL CL FW FW FW
POP 12HR 20 5 5 0 0 0 0 0
RAIN SHWRS 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