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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Sep 4 2026
NCZ006-050800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EDT Fri Sep 4 2026
Date 09/04/26 Sat 09/05/26 Sun 09/06/26 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 73 97 67 84 61
TEMP 79 77 75 75 91 96 92 81 74 71 70 69 76 81 82 77 70 67 64 62
DEWPT 71 70 69 70 72 70 72 72 72 71 70 69 70 69 69 67 66 65 64 62
MIN/MAX RH 86 42 100 64 100
RH 77 79 82 84 54 43 52 74 93100100100 82 67 65 71 87 93100100
WIND DIR SW W W W NW NW NW W W NW N NE NE NE NE NE E E NE NE
WIND SPD 1 1 2 2 4 4 4 2 1 1 1 3 5 6 6 4 2 1 2 3
CLOUDS SC FW FW FW FW B1 B2 B1 B1 SC SC B2 B2 B2 B2 B1 B1 SC SC SC
CLOUDS(%) 39 15 8 10 13 54 73 63 59 41 50 76 78 72 72 67 69 46 36 41
VSBY 10 10 9 9 10 10 10 10 10 9 6 10 10 10 10 10 10 10 10 10
POP 12HR 20 60 40 40 10
RAIN SHWRS IS SC NM SC SC SC SC SC SC
TSTMS IS SC SC SC IS IS IS
MIX HGT <1 <1 <1 <1 4 7 5 <1 <1 <1 <1 1 3 3 4 <1
T WIND DIR SW W N NW NW W W NW N NE NE N N NE NE NE
T WIND SPD 4 2 1 1 10 10 13 2 0 5 3 4 18 19 17 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 1 48 87 78 1 0 3 2 8 56 67 64 5
MAX LVORI 4 5 6 5 1 1 1 3 8 9 10 8 3 1 1 3
STABILITY G G G A A A B F F F F B C C C E
CEILING None None None 9600 None 2400 400 900 6900
STA PRES 29.26 29.24 29.26 29.17 29.17 29.17 29.25 29.29
Date 09/07Tue 09/08/26Wed 09/09/26Thu 09/10/26Fri 09/11/26
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 85 60 87 62 91 68 96 69 91
TEMP 82 77 65 62 85 79 66 64 89 83 73 70 94 87 75 70 89 82
DEWPT 62 61 61 61 60 59 59 62 63 62 61 63 65 64 63 62 62 61
RH 51 58 87 97 43 50 78 93 42 49 66 78 39 46 66 76 41 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW FW FW SC FW SC FW FW FW FW FW SC SC SC FW
POP 12HR 5 0 5 0 0 0 10 10 20
RAIN SHWRS 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
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