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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Thu Jul 16 2026
VAZ012-170800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 PM EDT Thu Jul 16 2026
Date 07/16/26 Fri 07/17/26 Sat 07/18/26 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 65 93 66 87 65
TEMP 92 83 70 66 65 68 82 87 91 82 71 68 67 69 79 82 85 77 69 67 66 67
DEWPT 64 65 63 62 62 66 68 66 66 67 66 65 64 68 71 69 68 67 67 66 66 67
MIN/MAX RH 92 44 96 57 100
RH 40 55 78 87 90 93 63 50 44 61 84 90 90 97 77 65 57 71 93 97100100
WIND DIR NW NW NW NW NW NW E E S S N N W W W W W W W W W W
WIND SPD 1 1 1 1 1 1 1 1 1 1 0 0 1 1 3 3 3 3 3 3 3 3
CLOUDS FW FW FW FW FW FW SC B1 SC B1 SC B1 SC B1 B1 B2 B2 B1 B1 B1 B1 B2
CLOUDS(%) 16 17 12 11 17 25 50 51 35 55 49 58 27 54 54 84 84 62 62 64 64 75
VSBY 10 10 10 10 8 10 10 10 10 10 10 10 10
POP 12HR 0 30 30 80 40
RAIN SHWRS SC SC SC O O SC SC IS IS SC
TSTMS SC IS SC SC SC IS
Obvis H H H H
MIX HGT 5 <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 4 4 1
T WIND DIR N NW NW NW NW W E SE S SE SE W SW W W W W SW
T WIND SPD 3 4 5 4 2 1 9 6 8 6 1 2 3 5 9 13 13 14
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 23 2 3 2 1 1 45 42 51 3 1 1 2 6 34 70 72 7
MAX LVORI 2 2 4 6 7 7 1 1 1 3 6 6 7 6 3 1 1 3
STABILITY A G G G G A A B A F F F G B B B B F
CEILING None None None None None None None 100 2100 5900
STA PRES 27.29 27.32 27.34 27.36 27.31 27.30 27.26 27.24 27.16
Date 07/19Mon 07/20/26Tue 07/21/26Wed 07/22/26Thu 07/23/26
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 84 61 86 62 88 64 83 57 83
TEMP 79 75 63 63 81 77 65 66 83 78 67 67 78 73 61 60 77 73
DEWPT 68 66 63 63 65 65 63 65 66 67 65 66 65 61 60 60 60 61
RH 69 74100100 58 67 93 97 57 69 93 97 64 66 97100 56 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 SC FW SC SC SC SC B1 B1 B1 B1 B1 B1 FW SC SC SC
POP 12HR 70 20 30 5 40 30 40 20 20
RAIN SHWRS SC NM IS SC IS SC SC SC SC SC IS IS
TSTMS SC SC IS SC IS SC SC SC 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