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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Sat Sep 26 2026
NCZ003-262000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1001 AM EDT Sat Sep 26 2026
Date Sat 09/26/26 Sun 09/27/26 Mon 09/28/26
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 78 51 77 53 79
TEMP 68 74 73 63 57 55 52 52 64 72 71 64 59 56 55 54 68 77 74 67
DEWPT 47 47 49 48 48 48 47 47 50 50 51 50 50 50 49 49 55 57 61 59
MAX/MIN RH 35 84 43 84 51
RH 47 38 43 58 72 77 83 83 60 46 49 60 72 80 80 83 63 50 64 75
WIND DIR NW N N NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 5 8 9 10 9 6 6 9 12 11 11 9 6 4 5 6 8 5 5 4
WIND GUST 21 21 19 19 23 24 21 20 18 14 16 17
CLOUDS CL CL CL CL CL FW FW FW CL FW CL FW FW FW FW FW SC SC SC FW
CLOUDS(%) 2 2 2 3 1 7 6 9 5 10 3 6 10 20 17 21 34 44 44 25
VSBY 10 10 10 10 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 2 3 3 <1 <1 <1 <1 <1 2 3 4 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR N N N N N N N NW NW N NW NW NW NW NW NW NW NW NW NW
T WIND SPD 12 13 17 12 12 10 11 12 19 20 20 11 11 10 9 9 18 14 13 6
DISPERSION FR PR PR PR PR PR VP PR VP
ADI 29 55 53 8 8 5 5 10 53 69 74 8 5 5 4 10 64 75 62 3
MAX LVORI 2 1 1 2 3 4 5 4 1 1 1 3 3 4 4 4 1 1 1 4
STABILITY B B C E E F F C C C C E F F F B B B B F
CEILING None None None None None None None None None
STA PRES 28.06 28.08 28.04 28.01 27.99 28.02 28.03 28.07 28.06
Date Tue 09/29/26Wed 09/30/26Thu 10/01/26Fri 10/02/26
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 53 82 56 82 59 83 62 83
TEMP 57 54 80 70 59 58 78 71 62 60 78 74 65 63 79 74
DEWPT 55 54 61 63 58 55 63 64 58 57 66 67 63 62 68 68
RH 93100 52 78 96 90 60 79 87 90 67 79 93 97 69 82
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW SC SC SC SC SC SC B1 B1 B1
POP 12HR 0 0 0 0 0 20 10 30
RAIN SHWRS 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