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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Fri Jul 10 2026
VAZ012-110800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 AM EDT Fri Jul 10 2026
Date 07/09/26 Fri 07/10/26 Sat 07/11/26 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 63 78 63 80 59
TEMP 64 66 73 76 71 70 67 65 65 65 71 75 78 73 65 63 60 63
DEWPT 63 66 68 68 66 66 65 64 64 65 69 68 67 66 64 63 60 63
MIN/MAX RH 100 75 100 70 100
RH 97100 84 76 84 87 93 97 97100 93 79 69 79 97100100100
WIND DIR W W W W W W W W W W W W W NW W N W W
WIND SPD 5 6 5 9 9 5 6 3 3 3 3 3 3 2 1 0 1 1
CLOUDS B1 B2 B2 B2 B1 B1 B2 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 B2
CLOUDS(%) 63 77 72 79 66 65 79 64 66 75 76 86 76 62 75 73 83 82
VSBY 8 9 10 10 10 10 8 8 4 5 8 8 6 8 3 1 1 2
POP 12HR 10 70 60 80 40
RAIN SHWRS IS NM SC SC NM SC SC IS SC O SC SC SC SC SC SC
TSTMS SC IS IS SC SC SC IS
MIX HGT <1 1 3 3 3 <1 <1 <1 <1 1 2 3 3 1
T WIND DIR W W W SW W W S NW NW W W NW W NW
T WIND SPD 5 6 13 12 17 8 2 5 4 9 9 14 14 9
DISPERSION PR PR PR VP VP VP VP VP VP
ADI 3 11 49 42 66 4 1 3 2 15 24 52 52 4
MAX LVORI 9 7 3 3 3 5 7 6 8 5 5 4 3 5
STABILITY G B A C B F F F F B B B B F
CEILING 400 600 1700 700 100 100 2200 900
STA PRES 27.25 27.27 27.26 27.25 27.26 27.31 27.30
Date 07/12Mon 07/13/26Tue 07/14/26Wed 07/15/26Thu 07/16/26
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 80 58 78 56 85 59 90 63 90
TEMP 75 72 62 61 73 71 60 60 80 76 61 64 85 80 65 66 85 80
DEWPT 66 65 62 61 61 60 57 59 60 61 58 61 62 64 62 64 64 64
RH 74 79100100 66 68 90 96 51 60 90 90 46 58 90 93 50 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B2 B2 B1 B1 SC SC SC FW FW SC FW FW FW FW SC
POP 12HR 80 30 40 5 5 5 10 10 20
RAIN SHWRS SC O SC SC SC IS IS IS
TSTMS IS SC 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