846
FNUS74 KLIX 042056
FWSLIX

Spot Forecast for Roseland Event...Tangipahoa Parish Emergency Management
National Weather Service New Orleans LA
356 PM CDT Sat Oct 4 2025

If conditions become unrepresentative, contact the National Weather
Service.

We can be reached at (985) 649-0357 if you have questions or concerns
with this forecast.

.DISCUSSION...

Low pressure offshore will combine with high pressure to the
north of the area to produce a persistent east to northeast wind
through tomorrow. Winds will generally range between 10 and
20 mph with occasional gusts to 25 mph, especially near the
coast. Rainfall will be confined to areas south of I-10 today.
Tomorrow and Monday, rain will overspread the entire area as the
offshore low moves inland to the west of the area. A return to a
drier and warmer regime will occur by the middle of next week as
high pressure becomes more dominant over the region. Winds will
also decrease back to 5 to 10 mph as the high builds in.


.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 86.
Min humidity........48 percent.
Max apparent temp...86.
Surface winds (mph).East winds 14 to 15 mph.
Mixing height (m)...1798 meters AGL.
Transport winds.....East around 16 mph.
Transport winds m/s.East around 7 meters/second.
CEILING (KFT).......25.
Wind (20 ft)........East winds 12 to 13 mph.

TIME (CDT)      4PM 5PM
Sky (%).........42  44
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10
Temp............85  84
RH..............48  49
Aparnt tmp (F)..86  85
20 FT wind dir..E   E
20 FT wind spd..15  14
20 FT wind gust.22  21
Surface wnd dir.E   E
Surface wnd spd.15  14
Surface wnd gst.22  21
Mix hgt (km)....1.8 1.8
Transp wind dir.E   E
Transp wind spd.16  16
Trans wind dir..E   E
Trans spd (m/s).7   7
Ceiling (kft)...25  25

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent). Slight chance of
                    showers early in the morning.
Chance of pcpn......20 percent.
Min temperature.....Around 70.
Max humidity........81 percent.
Max apparent temp...83.
Surface winds (mph).East winds 7 to 13 mph.
Mixing height (m)...152-1798 meters AGL.
Transport winds.....East 12 to 16 mph.
Transport winds m/s.East 5 to 7 meters/second.
CEILING (KFT).......25 decreasing to 7.3.
Wind (20 ft)........East winds 6 to 10 mph.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........46  43  42  45  42  37  31  25  35  29  34  40
Weather cov.....                                            SCH
Weather type....                                            RW
Tstm cov........
Chc of pcpn (%).10  10  10  10  10  10  10  10  10  10  10  20
Temp............82  78  75  73  72  72  71  70  70  70  70  70
RH..............53  60  66  71  76  73  76  78  78  78  78  81
Aparnt tmp (F)..83  78  75  73  72  72  71  70  70  70  70  70
20 FT wind dir..E   E   E   E   E   E   ENE ENE ENE ENE ENE ENE
20 FT wind spd..13  10  10  9   8   8   7   7   7   8   9   9
20 FT wind gust.18  16  15  14  13  12  10  10  10  13  14  14
Surface wnd dir.E   E   E   E   E   E   ENE ENE ENE ENE ENE ENE
Surface wnd spd.13  10  10  9   8   8   7   7   7   8   9   9
Surface wnd gst.18  16  15  14  13  12  10  10  10  13  14  14
Mix hgt (km)....1.8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Transp wind dir.E   E   E   E   E   E   E   E   E   E   E   E
Transp wind spd.16  12  12  12  12  12  12  14  14  14  13  13
Trans wind dir..E   E   E   E   E   E   E   E   E   E   E   E
Trans spd (m/s).7   5   5   5   5   5   5   6   6   6   6   6
Ceiling (kft)...25  25  25  25  25  25  9.5 9.5 7.3 7.8 8.0 7.9

.SUNDAY...

Sky/weather.........Partly sunny (55-65 percent). Slight chance of
                    showers early in the morning, then chance of
                    showers in the morning. Showers likely in the
                    afternoon.
Chance of pcpn......60 percent.
Max temperature.....Around 81.
Min humidity........74 percent.
Max apparent temp...86.
Surface winds (mph).East winds 10 to 15 mph.
Mixing height (m)...152-792 meters AGL.
Transport winds.....East 13 to 17 mph.
Transport winds m/s.East 6 to 8 meters/second.
CEILING (KFT).......7.1 decreasing to 5.3 early in the morning,
                    then decreasing to 3.2 early in the morning
                    decreasing to 1.5 late in the morning
                    decreasing to 0.8 decreasing to 0.7 late in the
                    morning increasing to 0.8 decreasing to 0.7
                    early in the afternoon increasing to 0.8
                    decreasing to 0.7 late in the afternoon.
Wind (20 ft)........East winds 8 to 13 mph.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........46        45        70        74
Weather cov.....S CHC     CHANCE    CHANCE    LIKELY
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........
Chc of pcpn (%).20        30        50        60
Temp............70        73        81        81
RH..............81        87        74        77
Aparnt tmp (F)..70        73        85        86
20 FT wind dir..E         E         E         E
20 FT wind spd..10        14        15        15
20 FT wind gust.15        20        22        22
Surface wind....E 10G15   E 14G20   E 15G22   E 15G22
Mix hgt (m).....150       210       610       790
Transp wind dir.E         E         E         E
Transp wind spd.13        15        17        17
Trans wind dir..E         E         E         E
Trans spd (m/s).6         7         8         8
Ceiling (kft)...7.1       1.5       0.8       0.8

$$
Forecaster...LISNEY
Requested by...Dawson Primes
Type of request...HAZMAT
.TAG 2520558.38/LIX
.DELDT 10/04/25
.FormatterVersion 2.0.0
.EMAIL schroeder.hope@epa.gov,sr-lix.forecasters@noaa.gov,vtravis@tangipahoa.org,dawson.primes@tangipahoa.org