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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Mon Jul 13 2026
VAZ018-140800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Mon Jul 13 2026
Date 07/12/26 Mon 07/13/26 Tue 07/14/26 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 64 77 62 86 64
TEMP 68 67 66 69 74 76 70 66 65 63 65 77 84 85 75 68 65 64 67
DEWPT 66 66 65 68 68 66 65 62 61 60 63 65 64 64 66 61 60 59 62
MIN/MAX RH 100 71 92 48 86
RH 93 97 97 97 82 71 84 87 87 90 93 67 51 50 74 78 84 84 84
WIND DIR E E E E E E E E N N N E E SE S W W W NW
WIND SPD 2 3 4 4 5 5 2 1 0 0 1 2 3 3 1 2 2 2 2
WIND GUST 12 14 16 14
CLOUDS OV OV OV OV B2 B1 B1 B1 SC SC SC FW FW CL FW CL CL CL CL
CLOUDS(%) 91100100100 87 55 69 64 37 47 39 25 16 3 10 2 0 4 5
VSBY 2 2 2 4 8 10 10 8 5 2 4 10 7 7 7 7 7 7 7
POP 12HR 80 70 5 0 0
RAIN SHWRS O NM SC SC IS
TSTMS
MIX HGT <1 <1 1 1 2 3 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR E E E E E E E N N N NW E E E S
T WIND SPD 5 8 11 18 16 11 4 2 2 2 1 9 8 4 2
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 4 16 35 49 38 2 1 1 1 1 28 37 22 1
MAX LVORI 6 8 5 4 4 4 6 6 7 7 7 3 1 2 3
STABILITY F F C C B A F F F F A A A A G
CEILING 100 200 16900 None None None None None
STA PRES 27.93 27.98 27.97 27.98 27.98 28.0 27.94
Date 07/15Thu 07/16/26Fri 07/17/26Sat 07/18/26Sun 07/19/26
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 95 68 95 70 94 69 93 69 90
TEMP 92 83 71 72 92 84 72 73 92 83 72 73 92 78 72 72 88 77
DEWPT 67 68 65 67 68 68 65 66 65 66 65 66 68 68 66 67 68 67
RH 44 61 81 84 46 59 79 79 41 57 79 79 46 71 81 84 52 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL FW FW FW FW FW FW FW FW FW FW SC B1 B1 SC SC B1
POP 12HR 0 0 0 0 10 5 30 30 40
RAIN SHWRS SC SC SC
TSTMS SC IS SC
$$
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