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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Jul 12 2026
VAZ012-122000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Sun Jul 12 2026
Date Sun 07/12/26 Mon 07/13/26 Tue 07/14/26
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 74 59 72 57 80
TEMP 72 71 71 69 64 63 62 62 66 68 69 66 62 60 58 60 68 75 79 73
DEWPT 68 68 67 65 64 63 62 62 66 66 65 63 62 60 58 60 64 63 63 64
MAX/MIN RH 82 100 86 100 58
RH 87 90 87 87100100100100100 93 87 90100100100100 87 66 58 73
WIND DIR S SE E E E E E E E E E E E E E E E E E E
WIND SPD 1 1 1 1 2 2 2 2 2 3 3 2 3 2 2 2 2 2 2 1
CLOUDS OV OV OV B2 OV OV B2 B2 B2 OV B1 B1 B2 B1 B2 B1 SC SC FW FW
CLOUDS(%) 95 94 89 87 89 90 87 87 84 90 68 61 78 69 71 64 32 36 17 10
VSBY 9 4 5 5 5 4 6 4 6 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 60 70 20 10
RAIN SHWRS SC O NM NM SC NM SC SC NM SC SC IS IS
TSTMS IS SC SC IS IS SC SC
Obvis PF PF PF
MIX HGT 2 2 2 <1 <1 <1 <1 <1 1 2 2 1 <1 <1 <1 1 3 4 4 <1
T WIND DIR N E E E E SE E E E E E E E E SE NE E E E E
T WIND SPD 0 1 8 9 11 9 5 11 21 19 17 8 3 2 2 4 10 8 4 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 0 4 18 4 5 4 3 15 40 48 47 4 2 1 1 7 35 37 24 1
MAX LVORI 7 6 4 5 9 9 9 5 4 4 4 6 10 10 10 8 4 3 2 3
STABILITY B B B F F F F B B B B F F F F B A A A G
CEILING 200 1000 200 200 200 1300 17400 5700 None None
STA PRES 27.37 27.36 27.39 27.38 27.43 27.43 27.43 27.41 27.43 27.40
Date Wed 07/15/26Thu 07/16/26Fri 07/17/26Sat 07/18/26
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 59 88 62 89 63 89 62 88
TEMP 61 63 82 78 65 66 84 79 66 66 84 79 65 65 83 78
DEWPT 60 63 65 66 63 66 66 66 63 65 65 65 62 65 65 65
RH 97100 56 67 93100 55 64 90 97 53 62 90100 55 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW CL FW SC SC FW FW SC SC SC SC SC SC
POP 12HR 0 10 0 20 5 20 20 20
RAIN SHWRS IS IS IS IS 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