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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Wed Sep 9 2026
NCZ003-100800-
RAWS 310301
36.48N 80.86W Elev. 1300 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 64 89 66 86 67
TEMP 84 78 70 68 66 67 80 87 88 80 73 70 68 69 81 85 81 76 71 69 67 69
DEWPT 70 68 66 64 62 63 67 66 67 67 66 65 64 65 71 72 74 72 70 69 67 69
MIN/MAX RH 88 50 89 63 100
RH 63 71 87 87 87 87 65 50 50 65 79 84 87 87 72 65 79 87 97100100100
WIND DIR SW SW SW SW NW SW W SW SW W W NW NW NW NW SE N NE N N N N
WIND SPD 4 2 1 1 1 1 4 5 5 2 1 1 1 1 1 2 2 1 0 0 0 0
CLOUDS SC SC SC FW FW FW FW SC SC SC FW FW FW SC SC B2 B2 B1 B1 B2 B2 B2
CLOUDS(%) 47 35 28 16 9 15 18 33 43 26 22 17 18 33 49 82 82 63 63 71 85 85
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 3 3 6 6 10 10
POP 12HR 0 0 5 70 50
RAIN SHWRS NM NM SC SC SC
TSTMS SC SC SC
MIX HGT 3 <1 <1 <1 <1 <1 3 6 4 <1 <1 <1 <1 <1 4 6 2 <1
T WIND DIR SW S SW SW W W W W SW W NW NW NW NW W W SW NW
T WIND SPD 8 6 4 5 3 4 13 10 12 4 2 3 3 3 10 6 2 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 31 3 2 3 2 4 56 73 57 2 1 2 2 3 52 30 5 1
MAX LVORI 1 3 5 5 6 5 1 1 1 3 4 5 6 6 3 2 4 7
STABILITY B G G G G A B B B G G G G A A C C F
CEILING None None None None None None None 3700 3700
STA PRES 28.25 28.22 28.20 28.11 28.12 28.12 28.14 28.10
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 83 66 87 66 87 66 86 67 89
TEMP 79 76 70 68 83 78 69 68 84 79 69 68 84 79 70 69 86 80
DEWPT 74 73 69 68 73 72 67 67 71 70 67 67 72 71 68 68 72 72
RH 85 90 97100 72 82 93 97 65 74 93 97 67 77 93 97 63 77
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 B2 B1 SC B1 SC FW FW SC FW FW SC B1 FW FW FW B1
POP 12HR 80 40 50 5 20 10 30 5 30
RAIN SHWRS SC O SC SC IS SC SC
TSTMS IS SC SC SC IS IS SC
$$
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