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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EDT Sat Sep 5 2026
NCZ003-052000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
501 AM EDT Sat Sep 5 2026
Date Sat 09/05/26 Sun 09/06/26 Mon 09/07/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 93 69 81 65 81
TEMP 73 87 92 90 79 73 71 70 70 75 78 78 72 69 67 66 65 71 78 80 74
DEWPT 69 65 62 66 71 70 69 69 69 70 70 69 68 66 65 64 64 64 63 63 62
MAX/MIN RH 37 97 72 96 57
RH 87 48 37 45 77 90 93 97 97 84 76 74 87 90 93 93 97 79 60 56 66
WIND DIR NW NW NW NW N N NE N NE NE E NE NE E NE NE NE E E E E
WIND SPD 4 4 5 4 3 3 4 4 4 5 6 6 8 8 6 8 6 8 6 5 3
CLOUDS FW FW SC B1 SC SC SC SC SC B1 B2 B2 B1 B1 B1 B1 B1 B1 SC SC FW
CLOUDS(%) 21 18 36 52 48 44 46 41 37 66 70 78 54 63 67 67 54 59 48 27 17
VSBY 9 10 10 10 10 10 10 10 7 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 30 70 30 5
RAIN SHWRS SC IS IS IS NM NM SC SC
TSTMS SC IS SC SC
MIX HGT <1 3 6 4 <1 <1 <1 <1 <1 3 3 2 <1 <1 <1 <1 1 4 5 5 <1
T WIND DIR NW N NW NW NW N NE NE NE NE NE NE NE E E NE NE NE E E E
T WIND SPD 2 13 9 13 6 4 10 11 10 8 6 8 4 9 10 9 10 14 11 9 5
DISPERSION VP VP VP VP PR PR PR PR VP
ADI 2 54 68 66 3 2 7 8 10 25 22 23 4 8 7 8 18 53 70 59 3
MAX LVORI 6 1 1 1 4 6 6 6 6 4 3 3 5 5 6 6 5 3 1 1 3
STABILITY A A A A F F E E A C C C D D E D C C B A G
CEILING None None None None 1800 1600 1500 800 None None
STA PRES 28.87 28.79 28.81 28.85 28.91 28.89 28.96 29.02 29.08 29.08
Date Tue 09/08/26Wed 09/09/26Thu 09/10/26Fri 09/11/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 62 83 62 88 67 91 66 87
TEMP 64 63 80 75 64 64 85 79 69 68 88 81 70 67 84 77
DEWPT 61 61 62 61 59 60 65 64 63 63 66 66 64 64 64 63
RH 90 93 54 62 84 87 51 60 81 84 48 60 81 90 51 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW CL FW FW SC SC SC
POP 12HR 0 0 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