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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Tue Sep 29 2026
NCZ003-300800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
231 PM EDT Tue Sep 29 2026
Date 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri
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 58 82 60 85 61
TEMP 77 67 63 60 58 59 73 80 80 70 65 63 60 60 78 84 83 72 67 64 63 63
DEWPT 62 64 61 58 57 57 63 63 63 64 61 58 56 56 63 62 63 64 61 59 59 59
MIN/MAX RH 94 52 86 47 91
RH 60 90 93 93 96 93 71 56 56 81 87 84 87 87 60 48 51 76 81 84 87 87
WIND DIR S N N N N N S S S N N N N N SW S S N N N N N
WIND SPD 2 0 0 0 0 0 1 4 4 0 0 0 0 0 2 5 4 0 0 0 0 0
CLOUDS SC FW CL FW FW FW FW FW SC B1 SC FW FW FW FW FW FW FW FW FW FW FW
CLOUDS(%) 28 16 4 10 13 11 11 21 28 52 44 15 11 19 13 12 17 10 9 17 20 21
VSBY 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 4 <1 <1 <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR W S SW NW NW NW SW SW SW S W W W NW W W S SW
T WIND SPD 2 2 1 1 2 2 9 6 5 3 2 3 3 3 6 3 6 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 10 1 1 1 1 2 25 32 23 2 1 2 2 3 17 17 32 2
MAX LVORI 2 6 8 8 7 6 3 1 2 5 5 5 5 5 2 2 1 4
STABILITY B G G G G A A B B F F G G A B B B G
CEILING None None None None None None None None None None
STA PRES 28.14 28.19 28.19 28.25 28.21 28.23 28.22 28.25 28.21
Date 10/02Sat 10/03/26Sun 10/04/26Mon 10/05/26Tue 10/06/26
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 87 65 80 60 70 57 71 49 66
TEMP 86 76 68 66 76 71 62 60 66 67 60 58 68 63 53 50 63 58
DEWPT 67 68 65 64 69 67 62 60 66 65 60 57 58 57 49 46 49 51
RH 53 76 90 93 79 87100100100 93100 96 70 81 86 86 60 77
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B2 B2 B2 OV B2 OV B2 B2 B1 SC FW FW SC SC
POP 12HR 5 30 70 70 70 30 20 5 5
RAIN SHWRS SC SC NM NM NM NM NM SC SC IS IS
TSTMS SC 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