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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
101 PM EDT Wed Sep 30 2026
NCZ003-302000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
101 PM EDT Wed Sep 30 2026
Date Wed 09/30/26 Thu 10/01/26 Fri 10/02/26
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 79 58 83 60 87
TEMP 77 79 70 66 62 59 59 72 81 81 70 65 62 60 60 74 84 85 77
DEWPT 61 59 58 58 57 56 56 60 59 58 61 60 60 59 59 64 65 65 66
MAX/MIN RH 50 91 44 96 50
RH 58 50 66 75 84 90 90 66 47 46 73 84 93 96 96 71 53 51 69
WIND DIR S S N N N SW N SW SW SW S SW W SW SW SW SW SW SW
WIND SPD 4 3 0 0 0 1 0 2 5 5 2 2 2 2 3 4 5 5 3
CLOUDS FW FW SC SC FW FW SC FW FW FW FW FW FW FW SC FW SC SC B1
CLOUDS(%) 11 23 28 44 19 12 26 9 9 11 11 8 7 15 30 17 29 44 58
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 1 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT 4 4 <1 <1 <1 <1 <1 2 5 4 <1 <1 <1 <1 <1 2 5 4 <1
T WIND DIR SW SW SW SW W NW W SW SW SW SW SW SW SW SW SW W SW SW
T WIND SPD 9 6 2 1 2 2 2 13 9 10 3 3 3 3 2 11 12 10 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 43 34 1 1 1 1 2 27 49 52 2 2 2 2 2 23 67 49 3
MAX LVORI 1 1 3 4 5 6 6 3 1 1 3 5 7 8 8 3 1 1 3
STABILITY B B G F G G A B B B G G G G B B B B F
CEILING None None None None None None None None None
STA PRES 29.03 29.06 29.05 29.09 29.02 29.04 29.00 29.01 28.93
Date Sat 10/03/26Sun 10/04/26Mon 10/05/26Tue 10/06/26
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 66 70 58 66 57 74 49 65
TEMP 68 66 69 65 59 58 63 62 60 58 72 62 54 50 64 53
DEWPT 66 64 62 60 57 57 61 61 60 58 60 56 51 45 45 45
RH 93 93 78 84 93 96 93 97100100 66 81 90 83 50 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 OV OV OV OV OV B1 B1 SC SC SC SC FW FW
POP 12HR 20 60 70 70 40 10 0 0
RAIN L L L L
RAIN SHWRS IS SC SC SC 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