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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EDT Wed Jul 15 2026
VAZ012-152000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1231 PM EDT Wed Jul 15 2026
Date Wed 07/15/26 Thu 07/16/26 Fri 07/17/26
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 93 63 93 65 93
TEMP 86 92 83 69 66 64 67 81 87 92 84 72 68 66 69 82 87 90 82
DEWPT 63 63 66 64 62 61 64 67 65 65 66 65 64 63 66 68 66 67 67
MAX/MIN RH 39 92 41 92 46
RH 46 38 57 84 87 90 90 63 48 41 55 79 87 90 90 63 50 47 61
WIND DIR N NW NW NW NW NW NW N N NW NW NW NW NW NW E SE S W
WIND SPD 2 1 1 1 1 2 2 2 1 1 1 1 1 1 1 1 1 1 1
CLOUDS CL CL CL CL FW FW FW FW B1 SC FW FW SC SC B1 FW B1 B1 SC
CLOUDS(%) 4 1 1 4 14 15 14 10 53 36 20 24 26 28 55 15 60 60 48
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 40
RAIN SHWRS SC SC IS
TSTMS SC SC IS
MIX HGT 5 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 4 6 3 <1
T WIND DIR N NW NW NW W NW W N NW NW NW N NW W NW E SE SE S
T WIND SPD 4 1 3 3 3 3 2 9 4 3 5 5 3 2 1 4 4 4 8
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 27 7 2 2 2 2 2 41 28 23 3 3 2 1 1 22 31 17 4
MAX LVORI 2 2 3 5 6 7 6 1 2 2 3 4 6 7 7 2 1 2 3
STABILITY A A G G G G A A B A G G G G B A B B F
CEILING None None None None None None None None 3400
STA PRES 27.32 27.33 27.33 27.34 27.29 27.31 27.33 27.34 27.29
Date Sat 07/18/26Sun 07/19/26Mon 07/20/26Tue 07/21/26
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 65 88 64 84 60 87 63 88
TEMP 68 68 82 78 67 67 79 76 63 64 81 78 65 66 82 79
DEWPT 65 67 69 68 66 67 68 66 63 64 63 64 63 65 65 65
RH 90 97 65 71 97100 69 71100100 54 62 93 97 56 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC B1 B2 B1 B1 B1 B2 SC SC SC SC SC SC SC B1
POP 12HR 20 80 40 60 10 20 10 30
RAIN SHWRS IS SC O SC IS SC NM IS IS SC
TSTMS IS IS SC SC IS IS SC IS 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