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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sat Sep 5 2026
VAZ018-060800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Sat Sep 5 2026
Date 09/05/26 Sun 09/06/26 Mon 09/07/26 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 66 77 61 79 59
TEMP 71 68 67 67 70 73 73 67 66 64 62 62 71 78 76 68 63 61 59 60
DEWPT 67 67 66 66 69 69 67 63 60 59 58 59 63 63 62 59 56 56 56 57
MIN/MAX RH 100 78 92 59 91
RH 87 97 97 97 97 87 81 87 81 84 87 90 76 60 62 73 78 84 90 90
WIND DIR N N N E E E SE E E E E E E SE SE SE SE SE SW N
WIND SPD 2 1 1 2 3 4 4 2 3 2 2 3 4 4 4 2 1 1 1 0
CLOUDS B1 B1 B1 B2 B2 B2 B1 B1 B1 SC B1 B1 SC SC SC FW FW FW FW FW
CLOUDS(%) 64 62 64 81 81 85 67 59 64 43 53 64 39 40 32 13 10 14 20 22
VSBY 7 1 0 0 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 50 80 10 0 0
RAIN SHWRS SC SC SC SC NM SC SC
TSTMS IS IS SC IS
MIX HGT <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR N NW N NE E E E NE NE E E E E E E E
T WIND SPD 8 2 1 2 9 8 11 9 4 6 8 5 11 5 3 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 1 1 2 20 19 30 4 2 3 4 7 51 36 25 3
MAX LVORI 6 8 9 8 5 4 4 5 5 5 6 5 3 1 2 3
STABILITY F F F B B C C F F F F B A A A G
CEILING None 1000 700 700 None 1400 None None None
STA PRES 27.71 27.71 27.75 27.76 27.82 27.87 27.92 27.91
Date 09/08Wed 09/09/26Thu 09/10/26Fri 09/11/26Sat 09/12/26
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 83 61 87 66 88 64 82 59 82
TEMP 80 71 63 62 85 75 69 68 86 75 68 64 79 70 61 60 80 71
DEWPT 62 59 55 57 64 61 60 61 67 64 61 61 62 58 56 56 61 59
RH 54 66 75 84 50 62 73 78 53 69 78 90 56 66 84 87 52 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC FW FW SC FW FW FW SC SC B1 SC SC FW SC SC SC
POP 12HR 0 0 0 0 20 20 20 10 20
RAIN SHWRS IS IS IS IS
TSTMS 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