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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Fri Aug 14 2026
VAZ018-150800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
301 PM EDT Fri Aug 14 2026
Date 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon
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 69 83 69 89 71
TEMP 82 79 74 72 71 71 78 81 82 73 72 71 71 71 82 88 86 77 75 74 73 72
DEWPT 73 70 69 70 68 69 72 72 72 71 71 70 69 70 73 73 73 73 70 69 68 69
MIN/MAX RH 98 71 97 61 91
RH 74 74 84 93 90 93 82 74 72 93 97 97 93 97 74 61 65 87 84 84 84 90
WIND DIR W W NW NW NW NW NE W N NE SW SW SW SW W W W W W W W W
WIND SPD 5 4 2 2 1 1 2 3 3 1 1 1 1 2 3 4 5 3 5 6 6 6
WIND GUST 13 18 21 23 23
CLOUDS B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC SC FW FW FW FW SC
CLOUDS(%) 69 70 58 62 58 60 80 74 66 68 60 66 59 69 55 45 45 19 19 15 25 33
VSBY 10 10 8 5 3 4 10 10 10 10 10 4 0 0 10 10 10 10 10 10 10
POP 12HR 40 60 40 30 10
RAIN SHWRS SC IS SC IS IS SC NM SC SC SC SC IS IS
TSTMS SC IS SC IS SC SC IS IS IS
Obvis PF PF PF
MIX HGT 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR W NW NW NW N NE NE W W E SE S SW SW W W W W
T WIND SPD 21 18 5 2 1 2 1 4 4 3 2 2 1 4 23 23 25 13
DISPERSION VP VP VP VP VP VP VP VP VP PR PR PR
ADI 72 12 3 1 1 2 3 15 15 2 1 1 1 5 74143155 6
MAX LVORI 3 4 5 7 7 6 5 3 3 7 8 8 9 7 3 1 1 5
STABILITY C E F F F B B B B F F F F B B A A G
CEILING 7700 3000 600 2700 2800 1000 None None None
STA PRES 27.90 27.92 27.95 27.92 27.91 27.87 27.81 27.73
Date 08/17Tue 08/18/26Wed 08/19/26Thu 08/20/26Fri 08/21/26
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 87 68 85 65 87 68 87 66 82
TEMP 86 77 71 69 83 75 67 67 85 77 70 70 85 76 69 66 80 72
DEWPT 72 71 68 67 69 66 63 64 68 67 65 66 69 68 65 64 67 65
RH 63 82 90 93 63 74 87 90 57 71 84 87 59 76 87 93 65 79
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 SC SC SC FW FW SC SC SC SC SC B1 B1 B1 B1 B1
POP 12HR 40 20 10 5 5 10 30 30 40
RAIN SHWRS SC IS SC SC IS IS SC
TSTMS SC SC 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