Spot Forecast
Issued by NWS New Orleans/Baton Rouge, LA

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248
FNUS74 KLIX 051835
FWSLIX

Spot Forecast for Roseland Event...Tangipahoa Parish Emergency Management
National Weather Service New Orleans LA
135 PM CDT Sun Oct 5 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...

A low pressure system moving inland across western Louisiana this
afternoon into tonight will continue to bring higher rain chances
and gusty east winds to the area through tonight. The highest
rain chances will be generally south of I-10 and east of I-55.
Although the low will start to dissipate tomorrow, some lingering
higher rain chances will remain in place over the area. Winds
will remain easterly, but will decrease down to 10 mph or less.
Rain chances will then gradually decrease on Tuesday and
Wednesday as high pressure starts to build over the area, and dry
weather conditions are anticipated for the end of the week. RH
values will remain well above any critical thresholds through the
end of the week. Conditions also look a bit more conducive for
some patchy light fog development in southwest Mississippi and
areas north of I-12 in southeast Louisiana both Monday and
Tuesday nights.


.REST OF TODAY...

Sky/weather.........Mostly cloudy (75-85 percent). Showers likely.
Chance of pcpn......60 percent.
Max temperature.....Around 82.
Min humidity........77 percent.
Max apparent temp...86.
Surface winds (mph).East winds 15 to 18 mph.
Mixing height (m)...640-732 meters AGL.
Transport winds.....East 17 to 18 mph.
Transport winds m/s.East around 8 meters/second.
CEILING (KFT).......2.2 increasing to 2.7 late in the afternoon.
Wind (20 ft)........East winds 13 to 15 mph.

TIME (CDT)      2PM 3PM 4PM 5PM
Sky (%).........81  77  77  77
Weather cov.....LKY LKY LKY LKY
Weather type....RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).60  60  60  60
Temp............81  79  79  79
RH..............77  82  82  82
Aparnt tmp (F)..86  79  79  79
20 FT wind dir..E   E   E   E
20 FT wind spd..17  18  16  15
20 FT wind gust.25  26  24  23
Surface wnd dir.E   E   E   E
Surface wnd spd.17  18  16  15
Surface wnd gst.25  26  24  23
Mix hgt (km)....0.7 0.7 0.6 0.6
Transp wind dir.E   E   E   E
Transp wind spd.18  18  17  17
Trans wind dir..E   E   E   E
Trans spd (m/s).8   8   8   8
Ceiling (kft)...2.2 2.7 2.7 2.7

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of
                    showers.
Chance of pcpn......50 percent.
Min temperature.....Around 71.
Max humidity........100 percent.
Max apparent temp...78.
Surface winds (mph).East winds 6 to 14 mph.
Mixing height (m)...152-640 meters AGL.
Transport winds.....East 10 to 17 mph.
Transport winds m/s.East 4 to 8 meters/second.
CEILING (KFT).......2.2 decreasing to 1.3 late in the evening, then
                    increasing to 3.5 late in the evening
                    decreasing to 1.1 late in the evening
                    decreasing to 0.9 decreasing to 0.8 after 3 am
                    decreasing to 0.6.
Wind (20 ft)........East winds 5 to 12 mph.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........75  74  68  73  73  70  66  71  73  69  67  67
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
Chc of pcpn (%).50  50  40  40  40  40  40  40  40  40  30  30
Temp............78  77  72  74  74  72  72  74  72  72  72  72
RH..............85  88  100 93  93  100 100 97  100 100 100 100
Aparnt tmp (F)..78  77  72  74  74  72  72  74  72  72  72  72
20 FT wind dir..E   E   E   E   E   ESE ESE E   E   E   E   E
20 FT wind spd..14  13  13  12  10  10  7   6   6   6   6   6
20 FT wind gust.22  18  18  17  15  15  10  9   9   9   9   9
Surface wnd dir.E   E   E   E   E   ESE ESE E   E   E   E   E
Surface wnd spd.14  13  13  12  10  10  7   6   6   6   6   6
Surface wnd gst.22  18  18  17  15  15  10  9   9   9   9   9
Mix hgt (km)....0.6 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3
Transp wind dir.E   E   E   E   ESE ESE ESE E   E   E   E   E
Transp wind spd.17  14  14  14  15  15  15  13  13  13  10  10
Trans wind dir..E   E   E   E   ESE ESE ESE E   E   E   E   E
Trans spd (m/s).8   6   6   6   7   7   7   6   6   6   4   4
Ceiling (kft)...2.2 2.2 2.2 1.3 3.5 1.3 1.1 1.5 1.1 0.9 0.8 0.6

.MONDAY...

Sky/weather.........Partly sunny (50-60 percent). Chance of showers
                    through the day. Chance of thunderstorms in the
                    afternoon.
Chance of pcpn......40 percent.
Max temperature.....Around 87.
Min humidity........70 percent.
Max apparent temp...98.
Surface winds (mph).Southeast winds 6 to 12 mph.
Mixing height (m)...152-1036 meters AGL.
Transport winds.....Southeast 10 to 13 mph becoming around 12 mph
                    in the afternoon.
Transport winds m/s.Southeast 4 to 6 meters/second.
CEILING (KFT).......0.5 decreasing to 0.4 early in the morning,
                    then increasing to 0.6 late in the morning
                    increasing to 1.3 late in the morning
                    increasing to 1.8 increasing to 3.2 early in
                    the afternoon increasing to 4.5 increasing to
                    9.1 late in the afternoon.
Wind (20 ft)........Southeast winds 5 to 9 mph. Gusty and erratic
                    winds expected near thunderstorms in the
                    afternoon.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........66        54        54        49
Weather cov.....CHANCE    S CHC     CHANCE    CHANCE
Weather type....RNSHWR    RNSHWR    RNSHWR    RNSHWR
Tstm cov........                    S CHC     CHANCE
Chc of pcpn (%).30        20        40        40
Temp............72        77        84        85
RH..............97        94        77        75
Aparnt tmp (F)..72        77        93        94
20 FT wind dir..E         ESE       SE        SE
20 FT wind spd..6         8         10        12
20 FT wind gust.9         12        15        17
Surface wind....E 6G9     ESE 8G12  SE 10G15  SE 12G17
Mix hgt (m).....270       150       580       1040
Transp wind dir.E         ESE       SE        SSE
Transp wind spd.10        10        13        12
Trans wind dir..E         ESE       SE        SSE
Trans spd (m/s).4         4         6         5
Ceiling (kft)...0.5       0.6       3.2       9.4

$$
Forecaster...LISNEY
Requested by...Dawson Primes
Type of request...HAZMAT
.TAG 2520558.39/LIX
.DELDT 10/05/25
.FormatterVersion 2.0.0
.EMAIL vtravis@tangipahoa.org,sr-lix.forecasters@noaa.gov,dawson.primes@tangipahoa.org,schroeder.hope@epa.gov