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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Sep 6 2026
VAZ018-070800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 PM EDT Sun Sep 6 2026
Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed
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 60 78 59 82 61
TEMP 74 71 67 64 63 63 71 76 77 68 64 62 60 61 74 81 79 69 65 63 62 63
DEWPT 69 64 62 60 60 60 64 63 62 60 57 56 56 57 64 64 63 61 58 57 57 58
MIN/MAX RH 97 60 89 55 87
RH 84 79 84 87 90 90 79 64 60 76 78 81 87 87 71 56 58 76 78 81 84 84
WIND DIR E E E E E E E E SE SE E E E E S S S S S SW SW SW
WIND SPD 5 4 4 4 4 4 4 4 5 3 1 1 1 1 3 3 4 2 3 2 2 2
CLOUDS B1 B2 B1 SC SC SC SC SC SC FW FW CL FW B1 FW SC FW FW FW FW FW FW
CLOUDS(%) 68 84 52 34 28 41 34 44 29 11 15 5 11 53 23 35 22 22 20 16 10 14
VSBY 9 9 9 8 4 2 9 10 10 10 10 10 3 0 10 10 10 10 10 10 10
POP 12HR 10 5 5 0 0
Obvis PF PF
MIX HGT 2 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR E E NE E E E E E SE SE SE E E SE S SW SW SE
T WIND SPD 10 6 3 9 9 8 10 8 5 9 11 4 3 6 4 3 2 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 29 5 2 4 4 8 37 38 30 4 5 2 2 7 19 20 14 4
MAX LVORI 4 4 5 5 6 5 3 1 1 4 4 5 6 5 3 2 2 3
STABILITY C E E F F A A A A G G G G B A A A G
CEILING 2100 None None None None None None None None None
STA PRES 27.79 27.83 27.88 27.93 27.93 27.99 28.03 28.07 28.04
Date 09/09Thu 09/10/26Fri 09/11/26Sat 09/12/26Sun 09/13/26
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 66 87 65 83 61 83 63 86
TEMP 86 77 69 68 85 75 68 65 80 71 64 63 80 72 66 65 84 75
DEWPT 65 63 62 62 69 67 64 63 65 62 59 60 66 64 62 62 66 64
RH 50 62 78 81 59 76 87 93 60 73 84 90 62 76 87 90 55 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW FW FW B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC SC
POP 12HR 5 0 40 40 40 20 30 10 20
RAIN SHWRS SC SC SC SC IS IS SC IS
TSTMS IS 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