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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 AM EDT Mon Sep 7 2026
VAZ018-072000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
931 AM EDT Mon Sep 7 2026
Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26
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 76 59 81 60 87
TEMP 71 76 76 68 63 62 60 60 73 80 79 69 65 63 61 62 79 86 84 74
DEWPT 62 60 60 57 56 55 55 56 59 57 56 59 57 56 56 57 64 65 64 63
MAX/MIN RH 57 87 42 86 48
RH 73 58 58 68 78 78 84 87 62 45 45 70 75 78 84 84 60 50 51 69
WIND DIR E SE SE E E NE N N SE SE SE SE S SW SW SW SW SW SW SW
WIND SPD 4 4 4 2 1 1 0 0 3 3 3 2 2 2 1 2 3 3 4 3
CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC FW FW FW FW SC FW FW
CLOUDS(%) 33 37 45 27 31 26 32 35 30 46 39 30 27 23 14 16 18 27 20 13
VSBY 10 10 10 10 10 9 5 4 9 10 9 10 10 10 10 0 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 3 5 4 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 4 7 6 <1
T WIND DIR E E E E SE SE NE E S S S SE S SW W SW W W SW S
T WIND SPD 11 8 6 8 13 6 1 1 3 4 4 8 3 3 3 3 8 6 9 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 44 46 37 4 6 3 1 1 14 28 28 4 2 2 2 3 36 57 71 3
MAX LVORI 3 1 3 4 4 5 6 7 3 2 2 3 4 4 5 5 1 1 1 3
STABILITY A A A G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.93 28.00 28.03 28.07 28.04 28.05 28.05 28.03 27.95
Date Thu 09/10/26Fri 09/11/26Sat 09/12/26Sun 09/13/26
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 66 86 65 83 63 83 64 86
TEMP 68 68 86 75 68 65 81 72 66 64 80 72 67 66 84 75
DEWPT 62 63 68 67 65 64 66 63 61 62 68 66 64 64 67 64
RH 81 84 55 76 90 97 60 73 84 93 67 81 90 93 57 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW B1 B1 B1 SC SC FW SC SC B1 SC SC SC FW
POP 12HR 0 40 40 30 10 40 10 10
RAIN SHWRS SC SC IS SC IS SC
TSTMS 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