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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Fri Sep 4 2026
VAZ018-050800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
501 PM EDT Fri Sep 4 2026
Date 09/04/26 Sat 09/05/26 Sun 09/06/26 Mon
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 71 91 66 78 61
TEMP 77 75 73 72 73 83 88 86 75 72 69 68 67 72 76 74 68 66 65 63 62
DEWPT 65 67 66 66 67 70 70 70 68 68 67 66 66 69 68 67 64 61 60 59 60
MIN/MAX RH 84 54 98 76 93
RH 67 76 79 81 81 65 55 59 79 87 93 93 97 90 76 79 87 84 84 87 93
WIND DIR NW NW W W NW NW NW NW W NW NW NE NE E E E E E E E E
WIND SPD 3 2 3 4 4 6 6 6 3 2 1 1 3 3 3 4 2 3 3 3 3
WIND GUST 16 20 19 20 14 13
CLOUDS SC FW CL FW SC FW B1 B1 SC B1 B1 SC B2 B2 B2 B2 B1 B2 B2 B1 B1
CLOUDS(%) 40 11 4 24 27 22 55 54 50 63 60 48 85 85 82 82 69 78 72 66 67
VSBY 9 9 7 5 4 9 10 10 10 10 8 10 6 10 10 10 10 10 10 10 10
POP 12HR 5 30 50 70 30
RAIN SHWRS SC SC IS SC SC IS NM NM NM NM SC SC
TSTMS SC SC IS IS IS IS
MIX HGT <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 2 2 3 <1
T WIND DIR NW NW W NW NW NW W NW NW NW N NW NE NE NE E NE
T WIND SPD 3 3 3 3 2 3 13 14 12 6 8 4 9 10 8 3 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 2 2 11 78 57 6 3 4 2 10 26 24 11 1
MAX LVORI 3 4 5 5 5 3 1 1 4 6 6 8 6 4 3 4 6
STABILITY G G G F A B B C F F F F B B B C F
CEILING None None None None 3700 5900 700 2100 2300
STA PRES 27.75 27.73 27.75 27.66 27.68 27.67 27.76 27.77
Date 09/07Tue 09/08/26Wed 09/09/26Thu 09/10/26Fri 09/11/26
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 79 60 83 62 88 68 88 65 84
TEMP 77 68 62 61 80 72 65 63 85 77 70 70 86 77 69 65 81 73
DEWPT 64 59 56 57 63 59 57 57 65 62 60 61 67 63 61 60 61 57
RH 64 73 81 87 56 64 75 81 51 60 71 73 53 62 76 84 51 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW SC SC SC SC FW FW SC FW FW FW FW SC SC FW FW
POP 12HR 10 0 5 0 5 5 10 20 10
RAIN SHWRS IS
TSTMS 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