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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
252 PM EDT Sat Aug 29 2026
VAZ046-300800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
252 PM EDT Sat Aug 29 2026
Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue
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 67 91 70 96 73
TEMP 85 78 72 69 68 69 81 87 89 81 75 73 71 72 89 95 94 84 78 75 74 75
DEWPT 67 67 68 68 68 69 70 69 68 68 68 68 67 68 69 66 65 66 66 66 66 67
MIN/MAX RH 100 50 90 37 80
RH 55 69 87 97100100 69 55 50 65 79 84 87 87 52 39 39 55 67 74 76 76
WIND DIR E E SE SE S SW SW SW S S S SW SW W W W W E SW W W W
WIND SPD 5 4 3 2 1 1 3 5 5 4 4 4 4 3 3 3 3 2 3 2 3 3
CLOUDS SC FW FW SC B1 B1 SC FW FW CL FW SC FW FW CL FW SC SC SC FW FW FW
CLOUDS(%) 36 21 19 27 54 53 36 23 9 4 24 28 7 9 4 15 29 26 41 24 11 13
VSBY 10 10 10 7 4 4 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
Obvis PF PF PF
MIX HGT 6 <1 <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 5 8 8 <1
T WIND DIR E E SE SE SE SW SW SW SW S S SW SW W NW W W NW
T WIND SPD 6 3 3 4 1 3 3 4 4 4 4 5 4 4 10 5 8 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 49 2 2 2 1 4 13 32 31 2 2 3 2 4 62 52 76 1
MAX LVORI 1 3 6 8 10 9 3 1 1 3 4 5 6 6 1 1 1 3
STABILITY A F G G F B A A A F F F F A A A A G
CEILING None None None None None None None None None None
STA PRES 29.46 29.48 29.50 29.49 29.41 29.40 29.38 29.39 29.34
Date 09/01Wed 09/02/26Thu 09/03/26Fri 09/04/26Sat 09/05/26
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 98 75 99 75 99 73 93 69 88
TEMP 96 87 77 76 97 88 78 77 96 87 75 75 91 82 71 70 86 79
DEWPT 66 67 67 68 67 67 67 68 68 69 69 68 68 68 67 66 67 65
RH 38 52 71 76 38 50 69 74 40 55 82 79 47 63 87 87 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW SC FW SC SC SC FW B1 B1 SC SC SC
POP 12HR 0 5 5 5 20 20 40 30 20
RAIN SHWRS IS IS SC SC IS
TSTMS IS 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