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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Fri Aug 28 2026
VAZ018-290800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 PM EDT Fri Aug 28 2026
Date 08/28/26 Sat 08/29/26 Sun 08/30/26 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 63 83 65 88 67
TEMP 81 71 67 66 64 64 74 81 80 71 68 67 66 66 79 87 85 74 71 69 68 68
DEWPT 65 64 63 61 61 62 67 68 67 66 65 64 65 65 69 68 67 66 65 65 64 65
MIN/MAX RH 92 62 97 52 91
RH 58 79 87 84 90 93 79 65 65 84 90 90 97 97 72 53 55 76 81 87 87 90
WIND DIR N N N NE NE E E SE SE SE SE N N N S S S S SW W W W
WIND SPD 2 2 2 1 2 2 3 4 4 2 1 0 0 0 2 2 2 2 2 2 2 2
CLOUDS SC SC FW FW FW FW SC SC FW FW FW SC SC SC SC FW SC FW FW FW FW FW
CLOUDS(%) 28 34 17 21 24 25 48 39 25 23 21 36 39 41 32 23 27 23 18 11 6 10
VSBY 10 10 10 9 6 3 10 10 10 10 8 10 10 10 10 10 10 10
POP 12HR 5 20 10 0 0
RAIN SHWRS IS IS
TSTMS IS IS
MIX HGT 5 <1 <1 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR NE NE NE NE NE E SE SE S SE SE S S W W W SW SW
T WIND SPD 5 8 6 3 3 4 10 6 8 11 3 2 1 2 6 5 5 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 36 4 3 2 2 4 35 35 40 5 2 1 1 2 25 36 32 1
MAX LVORI 1 4 6 6 7 6 3 3 3 5 7 7 9 8 3 1 1 4
STABILITY A G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None None
STA PRES 27.84 27.90 27.94 27.99 27.95 27.97 27.97 27.98 27.91
Date 08/31Tue 09/01/26Wed 09/02/26Thu 09/03/26Fri 09/04/26
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 91 69 93 71 93 71 91 69 89
TEMP 90 79 71 71 91 80 73 72 91 80 73 71 89 79 71 69 87 78
DEWPT 67 65 64 65 67 67 65 66 68 67 66 66 69 67 66 66 68 66
RH 47 62 79 81 45 65 76 81 47 65 79 84 52 67 84 90 53 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC B1
POP 12HR 0 0 0 0 10 10 20 10 30
RAIN SHWRS IS SC
TSTMS 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
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