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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Sep 10 2026
VAZ018-110800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Thu Sep 10 2026
Date 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun
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 67 85 66 79 66
TEMP 71 70 68 68 77 82 80 71 69 69 68 68 74 79 76 70 70 69 68 68
DEWPT 69 68 67 67 70 71 72 69 68 67 67 68 71 72 72 69 67 68 67 68
MIN/MAX RH 97 66 100 78 99
RH 93 93 97 97 79 69 77 93 97 93 97100 90 79 87 97 90 97 97100
WIND DIR W W NW NW N SE SE E E SE E E SE SE S SE S SW W W
WIND SPD 3 3 3 2 2 2 2 1 1 2 1 2 2 3 3 1 1 1 2 3
CLOUDS B1 B1 B1 B2 B1 B1 B2 B1 B2 B2 B2 B2 B2 OV OV B2 B2 B1 B1 SC
CLOUDS(%) 66 65 66 73 55 63 76 61 83 85 79 77 76 90 90 73 77 63 56 50
VSBY 8 5 5 4 10 9 9 8 10 10 10 10 10 3 3 6 6 10 10 10
POP 12HR 10 70 30 80 50
RAIN SHWRS IS SC NM SC IS O O SC SC
TSTMS SC SC SC SC SC SC
Obvis PF PFPF+
MIX HGT <1 <1 <1 <1 3 4 2 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR NW SW W W N S S SE SE SE E SE SE S S SE
T WIND SPD 1 3 5 6 6 4 5 9 6 4 3 3 4 4 6 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 2 3 5 20 16 16 4 3 2 2 3 9 13 16 3
MAX LVORI 7 7 6 7 3 3 4 6 6 8 8 9 5 4 4 8
STABILITY F F G C C C C F F F F C C C C F
CEILING 2800 3100 1500 2800 1700 800 0 1200 0
STA PRES 27.79 27.79 27.84 27.80 27.84 27.85 27.87 27.82
Date 09/13Mon 09/14/26Tue 09/15/26Wed 09/16/26Thu 09/17/26
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 85 65 85 62 82 63 87 64 87
TEMP 83 73 67 66 82 72 65 63 79 70 65 64 85 74 67 66 83 74
DEWPT 71 67 65 64 66 63 61 60 66 63 61 62 68 67 65 65 70 67
RH 67 81 93 93 58 73 87 90 64 78 87 93 57 79 93 97 65 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW SC SC SC FW SC SC SC FW FW FW SC SC FW SC B1
POP 12HR 20 0 10 0 10 0 30 10 50
RAIN SHWRS IS SC IS SC
TSTMS 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