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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Sep 14 2026
VAZ012-150800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Mon Sep 14 2026
Date 09/14/26 Tue 09/15/26 Wed 09/16/26 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 56 80 57 86 57
TEMP 60 61 58 57 68 77 79 69 62 59 57 60 75 83 86 74 64 60 57 59
DEWPT 54 56 55 52 58 63 63 62 59 56 54 55 65 64 62 61 60 57 54 55
MIN/MAX RH 91 56 93 45 91
RH 81 84 90 83 70 62 58 78 90 90 90 84 71 53 45 64 87 90 90 87
WIND DIR NE E SE SE SE S SE SE SE SE N N N NE NE SE N N N N
WIND SPD 4 5 5 2 2 2 2 2 1 1 0 0 0 2 2 1 0 0 0 0
CLOUDS FW SC SC SC B1 SC FW FW SC FW SC SC FW FW FW FW FW FW FW FW
CLOUDS(%) 10 47 26 31 51 32 18 25 42 24 30 45 14 21 15 10 15 13 13 14
VSBY 10 10 10 10 10 10 10 10 10 0 0 0 10 10 10 10 10 1 0 0
POP 12HR 0 5 0 0 0
MIX HGT <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR NE SE SE SE S S S SE S S SW SW NW N NE SE
T WIND SPD 3 2 14 11 9 6 3 6 8 8 4 4 4 9 5 4
DISPERSION VP PR PR VP VP VP VP VP VP VP VP
ADI 2 1 7 12 21 30 14 3 4 4 2 4 15 55 33 2
MAX LVORI 5 5 4 4 3 2 2 4 6 6 6 5 3 1 1 3
STABILITY G G F B C B B G F G G A A B B G
CEILING None None None None None None None None None
STA PRES 27.45 27.48 27.55 27.52 27.56 27.57 27.60 27.55
Date 09/17Fri 09/18/26Sat 09/19/26Sun 09/20/26Mon 09/21/26
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 87 60 89 60 87 61 86 60 81
TEMP 83 74 64 62 83 75 65 62 83 73 65 63 82 73 65 61 76 69
DEWPT 61 61 56 57 65 65 61 60 65 65 61 61 66 65 62 61 67 65
RH 47 64 75 84 55 71 87 93 55 76 87 93 58 76 90100 74 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 FW FW SC B1 FW FW SC B1 SC FW B1 B1 SC SC B1 B2
POP 12HR 30 5 40 0 40 10 30 20 60
RAIN SHWRS SC IS SC IS SC SC SC IS SC NM
TSTMS IS SC IS 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