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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Mon Sep 14 2026
VAZ012-142000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Mon Sep 14 2026
Date Mon 09/14/26 Tue 09/15/26 Wed 09/16/26
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 82 52 84 54 88
TEMP 71 78 79 67 59 57 55 55 68 79 80 69 62 58 55 57 76 83 86 74
DEWPT 64 61 58 57 55 53 52 51 58 63 64 62 59 56 54 55 65 65 64 63
MAX/MIN RH 47 94 53 98 48
RH 79 56 49 70 87 86 90 86 70 58 58 78 90 93 96 93 69 55 48 69
WIND DIR N N N N NE E E SE SE SE SE SE SE N N N N NE E SE
WIND SPD 2 2 2 2 1 2 2 2 2 2 2 2 1 0 0 0 0 2 1 1
CLOUDS SC CL FW FW SC FW SC SC SC FW FW FW CL FW FW FW FW FW FW FW
CLOUDS(%) 42 4 9 7 32 20 41 45 40 25 14 20 4 11 6 6 14 20 18 18
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 0 0 1 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT 2 4 4 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 5 5 <1
T WIND DIR NW N N N NE E SE SE S S S SE SE S SW SW NW NE NE SE
T WIND SPD 14 12 10 3 3 1 4 9 8 4 3 8 4 1 2 2 3 9 6 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 44 64 52 2 2 1 2 10 21 23 16 4 2 1 1 2 10 57 44 3
MAX LVORI 3 1 1 3 6 6 6 5 3 2 2 4 6 8 8 6 3 1 1 3
STABILITY B B B G G G F B B B B G G G G A A B A G
CEILING None None None None None None None None None None
STA PRES 27.38 27.38 27.42 27.46 27.53 27.50 27.54 27.54 27.58 27.53
Date Thu 09/17/26Fri 09/18/26Sat 09/19/26Sun 09/20/26
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 57 88 60 87 59 84 59 84
TEMP 61 60 86 74 64 62 82 73 63 61 80 71 63 62 79 70
DEWPT 58 57 64 64 60 60 66 66 62 60 66 65 61 61 66 65
RH 90 90 48 71 87 93 58 79 97 97 62 81 93 97 64 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW B1 FW FW SC B1 SC FW SC B1 SC SC SC B1
POP 12HR 0 30 5 40 10 30 10 50
RAIN SHWRS SC IS SC IS SC IS SC
TSTMS SC IS SC 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