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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Wed Sep 30 2026
NCZ003-302000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM 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 82 59 85 61 87
TEMP 72 79 80 69 65 62 60 60 76 83 83 72 67 64 62 62 80 86 84 74
DEWPT 62 61 61 62 59 56 54 55 61 61 61 62 60 59 58 58 65 66 68 67
MAX/MIN RH 52 83 46 90 51
RH 71 54 52 78 81 81 81 84 60 47 47 71 78 84 87 87 60 51 59 79
WIND DIR S S S N N N N NW S S S N N W N N SW SW SW W
WIND SPD 2 4 4 0 0 0 0 1 2 4 4 0 0 1 0 0 2 5 4 1
CLOUDS FW SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC B1 B1
CLOUDS(%) 9 40 38 33 23 24 11 18 23 19 16 13 6 14 17 22 21 45 52 59
VSBY 10 10 10 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 8 10
POP 12HR 0 0 0 0 10
MIX HGT 2 4 3 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 5 3 <1
T WIND DIR SW SW SW SW W W W NW W SW S S SW SW W NW W W SW SW
T WIND SPD 8 5 4 2 2 3 3 2 4 4 9 3 3 4 3 3 11 13 13 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 23 26 18 1 1 2 2 2 14 23 43 2 2 2 2 3 29 80 36 3
MAX LVORI 3 2 2 4 5 4 5 5 2 2 1 3 5 5 6 6 2 1 1 4
STABILITY B B B G G G G A B B B G G G G A B B D F
CEILING None None None None None None None None None None
STA PRES 28.24 28.21 28.24 28.22 28.26 28.21 28.22 28.20 28.20 28.13
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 64 76 57 69 56 71 44 65
TEMP 67 65 74 67 60 59 65 64 60 57 69 61 49 45 62 55
DEWPT 65 64 67 63 58 58 63 62 58 54 53 50 44 40 44 45
RH 93 97 79 87 93 96 93 93 93 90 57 67 83 82 52 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 OV B2 OV OV OV B2 B2 SC SC FW SC FW FW
POP 12HR 40 80 70 70 30 20 0 0
RAIN SHWRS SC NM O NM NM NM NM SC SC IS
TSTMS 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