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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Wed Sep 30 2026
NCZ005-010800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
501 PM EDT Wed Sep 30 2026
Date 09/30/26 Thu 10/01/26 Fri 10/02/26 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 59 87 62 90 66
TEMP 71 67 63 61 60 76 85 85 74 68 65 63 63 79 87 89 81 73 70 70 66
DEWPT 59 57 57 56 57 60 59 59 60 59 59 60 60 65 64 63 64 65 66 66 65
MIN/MAX RH 91 41 90 42 96
RH 66 70 81 84 90 58 41 41 62 73 81 90 90 62 46 42 56 76 87 87 97
WIND DIR SW SW SW SW SW SW SW SW S SW SW SW SW SW SW SW SW W NW N NE
WIND SPD 1 1 1 2 2 5 6 6 3 3 3 4 5 8 8 8 4 3 2 3 6
CLOUDS SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW SC B1 B1 B1 B2 B2
CLOUDS(%) 28 33 27 17 17 13 16 10 16 8 8 13 7 13 24 35 51 54 66 81 79
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6 10
POP 12HR 0 0 0 5 20
RAIN SHWRS IS IS SC
MIX HGT <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 2 6 6 <1
T WIND DIR S S S SW SW SW SW SW SW SW SW SW SW SW W W SW
T WIND SPD 2 2 2 2 2 14 10 11 4 4 3 4 4 21 16 12 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 2 50 64 69 2 2 2 2 5 68104 85 3
MAX LVORI 3 3 5 5 6 1 1 1 3 3 5 6 6 1 1 1 3
STABILITY G G G G B B B B G G G F B B B B E
CEILING None None None None None None None None 12700
STA PRES 29.38 29.37 29.40 29.33 29.35 29.32 29.31 29.23
Date 10/03Sun 10/04/26Mon 10/05/26Tue 10/06/26Wed 10/07/26
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 69 57 67 56 75 50 65 42 67
TEMP 69 64 59 58 64 63 59 57 72 65 55 50 63 56 46 44 65 58
DEWPT 61 59 58 58 62 62 59 57 60 57 52 44 44 44 42 41 45 47
RH 76 84 96100 93 97100100 66 75 90 80 50 64 86 89 48 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV OV OV B2 OV B2 B2 B1 SC SC SC FW FW FW FW FW FW
POP 12HR 50 70 70 40 10 0 0 0 0
RAIN L L L L
RAIN SHWRS SC SC SC SC
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