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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Wed Sep 9 2026
VAZ018-100800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 PM EDT Wed Sep 9 2026
Date 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat
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 87 67 82 67
TEMP 83 73 70 69 68 69 79 85 84 73 72 70 69 68 76 81 78 70 69 68 67 67
DEWPT 67 65 63 62 61 62 67 68 68 66 65 66 66 67 71 71 71 68 67 67 67 67
MIN/MAX RH 80 55 95 70 100
RH 59 76 78 78 78 78 67 57 59 79 79 87 90 97 85 72 79 93 93 97100100
WIND DIR W W W W W W W W W NW W W W NW NW E E SE SE E E SE
WIND SPD 4 2 5 5 5 6 8 6 6 4 4 4 3 2 2 2 2 1 2 2 2 2
WIND GUST 16 18 20 21 23 21 20 16 14 14
CLOUDS SC FW FW FW FW FW FW SC FW SC SC B1 SC SC B1 B2 B2 B1 B2 B2 B2 B2
CLOUDS(%) 37 23 18 18 14 23 14 37 24 40 38 53 33 48 68 84 84 69 82 81 82 84
VSBY 10 10 10 10 10 10 10 10 10 10 7 7 7 1 7 3 3 6 6 7 7
POP 12HR 0 10 30 80 40
RAIN SHWRS IS SC IS IS IS O O SC SC IS IS IS
TSTMS IS IS IS SC SC IS
Obvis PF
MIX HGT 5 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 2 4 2 <1
T WIND DIR SW S SW SW W W W W W W W W W W W SW S E
T WIND SPD 9 4 8 6 8 6 27 20 17 11 9 9 3 1 5 5 4 8
DISPERSION VP PR PR PR VP VP VP VP VP VP VP VP
ADI 56 2 4 3 4 9110110 83 5 4 6 2 1 16 21 13 4
MAX LVORI 1 3 4 4 4 4 1 1 1 4 4 4 7 7 4 3 4 6
STABILITY B G F F F B B B B F F E G B C C C F
CEILING None None None None None None 800 1100 0
STA PRES 27.92 27.88 27.86 27.80 27.81 27.82 27.84 27.81
Date 09/12Sun 09/13/26Mon 09/14/26Tue 09/15/26Wed 09/16/26
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 81 67 85 65 87 66 87 67 89
TEMP 79 71 69 68 83 74 68 66 84 75 68 67 84 76 69 68 87 77
DEWPT 73 70 68 68 71 67 65 65 69 66 64 64 70 68 66 66 70 68
RH 82 97 97100 67 79 90 97 61 74 87 90 63 76 90 93 57 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV B2 B2 B1 B1 SC FW SC SC FW FW SC SC FW FW FW B1
POP 12HR 90 50 40 5 10 5 20 10 30
RAIN SHWRS IS O SC SC IS SC
TSTMS SC SC 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