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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Thu Jul 16 2026
VAZ012-162000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
431 AM EDT Thu Jul 16 2026
Date Thu 07/16/26 Fri 07/17/26 Sat 07/18/26
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 91 65 92 65 85
TEMP 63 67 81 87 91 82 71 68 66 69 83 87 90 80 71 68 66 68 78 81 85 77
DEWPT 63 66 66 65 64 66 65 65 65 67 69 67 68 68 67 66 65 68 71 69 69 68
MAX/MIN RH 41 100 49 100 59
RH 100 97 60 48 41 58 81 90 97 93 63 52 49 67 87 93 97100 79 67 59 74
WIND DIR NW NW N NW NW NW NW NW NW NW NE E S SW N N W W W W W W
WIND SPD 1 2 2 2 1 1 1 1 1 1 1 1 1 1 0 0 1 1 2 3 3 3
CLOUDS FW FW FW SC SC FW FW CL FW SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B1
CLOUDS(%) 7 17 7 31 33 13 17 3 11 27 29 46 59 61 59 53 56 67 67 81 81 62
VSBY 9 10 10 10 10 10 10 10 7 10
POP 12HR 0 0 40 40 60
RAIN SHWRS SC SC SC SC SC NM NM SC
TSTMS SC SC IS IS SC SC SC
Obvis H H H H H
MIX HGT <1 <1 3 5 5 <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR NW NW N N NW NW NW NW NW W SE S SE W SW SW W W W W W W
T WIND SPD 3 5 9 6 2 3 5 4 2 1 9 6 6 4 3 3 4 5 10 13 14 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 2 6 36 42 15 2 3 2 1 1 45 43 37 2 2 2 2 6 40 75 75 5
MAX LVORI 10 7 1 1 2 3 5 6 10 7 1 1 1 3 5 7 8 8 3 1 1 3
STABILITY G A A A A G G G G A A A B F F F F B B B B F
CEILING None None None None None None 1400 None 600 2500
STA PRES 27.35 27.29 27.32 27.35 27.35 27.31 27.31 27.27 27.27 27.20
Date Sun 07/19/26Mon 07/20/26Tue 07/21/26Wed 07/22/26
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 64 84 60 86 62 88 62 84
TEMP 67 67 79 75 64 64 80 76 64 66 81 78 66 64 79 75
DEWPT 66 67 68 65 62 64 63 63 61 64 65 65 64 64 64 63
RH 97100 69 71 93100 56 64 90 93 58 64 93100 60 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B2 B1 FW FW SC B1 SC SC B1 B1 B1 B1 B1 B1
POP 12HR 40 50 10 30 10 40 40 40
RAIN SHWRS SC SC SC SC IS SC IS SC SC SC IS SC
TSTMS SC IS SC SC IS SC 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