Spot Forecast
Issued by NWS New Orleans/Baton Rouge, LA
Issued by NWS New Orleans/Baton Rouge, LA
318
FNUS74 KLIX 281015
FWSLIX
Spot Forecast for Roseland Event...Tangipahoa Parish Emergency Management
National Weather Service New Orleans LA
515 AM CDT Thu Aug 28 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...
Moisture will return starting today and rain chances increase
going into the upcoming weekend as a cold front moves into the
region. By early next week humidity values will again drop during
the daytime, however, should range 50- 60 percent during the
afternoon timeframe.
.TODAY...
Sky/weather.........Sunny (20-30 percent). Chance of showers and
thunderstorms in the afternoon.
Chance of pcpn......40 percent.
Max temperature.....Around 91.
Min humidity........59 percent.
Max apparent temp...97.
Surface winds (mph).Light winds becoming southwest around 5 mph in
the late morning and afternoon.
Mixing height (m)...122-1646 meters AGL.
Transport winds.....Southwest 3 to 7 mph.
Transport winds m/s.Southwest 1 to 3 meters/second.
CEILING (KFT).......25 decreasing to 11 early in the morning, then
decreasing to 9.5 late in the morning
decreasing to 8.5 late in the morning
decreasing to 7.3 decreasing to 5.8 late in the
afternoon increasing to 7.3.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the afternoon.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7 6 10 6 22 30 35 38 33 25 36 43
Weather cov..... CHC CHC CHC CHC CHC
Weather type.... RW RW RW RW RW
Tstm cov........ CHC CHC CHC CHC CHC
Chc of pcpn (%).0 0 0 10 10 10 10 30 30 30 40 40
Temp............72 71 74 79 83 86 87 88 89 89 87 86
RH..............93 97 93 82 74 68 63 61 59 59 63 65
Aparnt tmp (F)..72 71 74 79 90 94 94 96 97 97 94 93
20 FT wind dir..E E ESE S SSW SSW SSW SSW SW SW SSW SW
20 FT wind spd..1 1 1 2 2 3 3 5 5 5 5 5
20 FT wind gust.3 3 5 6 7 7 8 8 8 9 8 9
Surface wnd dir.E E ESE S SSW SSW SSW SSW SW SW SSW SW
Surface wnd spd.1 1 1 2 2 3 3 5 5 5 5 5
Surface wnd gst.3 3 5 6 7 7 8 8 8 9 8 9
Mix hgt (km)....0.1 0.2 0.2 0.2 1.0 1.0 1.0 1.6 1.6 1.6 1.5 1.5
Transp wind dir.SSW S S S SW SW SW WSW WSW WSW SW SW
Transp wind spd.3 5 5 5 6 6 6 7 7 7 6 6
Trans wind dir..SSW S S S SW SW SW WSW WSW WSW SW SW
Trans spd (m/s).1 2 2 2 3 3 3 3 3 3 3 3
Ceiling (kft)...25 25 11 11 9.5 8.5 7.3 5.8 5.8 5.8 5.8 7.3
.TONIGHT...
Sky/weather.........Mostly cloudy (45-55 percent) then becoming
partly cloudy (45-55 percent) then becoming
mostly cloudy (45-55 percent) then becoming
partly cloudy (40-50 percent) then becoming
mostly cloudy (60-70 percent). Chance of
thunderstorms in the evening. Chance of showers
through the night. Slight chance of
thunderstorms overnight.
Chance of pcpn......40 percent.
Min temperature.....Around 72.
Max humidity........93 percent.
Max apparent temp...91.
Surface winds (mph).South winds around 5 mph early in the evening
becoming light.
Mixing height (m)...152-1494 meters AGL.
Transport winds.....Southwest around 6 mph shifting to the south 6
to 9 mph.
Transport winds m/s.South 3 to 4 meters/second.
CEILING (KFT).......10 decreasing to 7.3 early in the evening, then
decreasing to 5.8 late in the evening
decreasing to 4.5 late in the evening
decreasing to 2.7 decreasing to 1.3 overnight
increasing to 1.8 decreasing to 1.3 early in
the morning.
Wind (20 ft)........Light winds. Gusty and erratic winds expected
near thunderstorms in the evening. Gusty and
erratic winds expected near thunderstorms after
3 am.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........51 53 50 51 46 39 54 57 62 59 74 72
Weather cov.....CHC CHC CHC CHC SCH CHC CHC SCH CHC CHC
Weather type....RW RW RW RW RW RW RW RW RW RW
Tstm cov........CHC CHC CHC CHC SCH SCH SCH
Chc of pcpn (%).40 40 40 30 20 10 10 30 30 20 30 30
Temp............84 82 79 77 76 76 75 75 74 73 74 73
RH..............72 77 82 88 87 87 90 90 93 93 90 90
Aparnt tmp (F)..91 88 79 77 76 76 75 75 74 73 74 73
20 FT wind dir..SSW S ESE ESE ESE ESE SSE SSE S S SE S
20 FT wind spd..5 3 3 2 2 2 2 2 2 2 2 2
20 FT wind gust.9 9 9 8 8 8 7 7 7 7 6 7
Surface wnd dir.SSW S ESE ESE ESE ESE SSE SSE S S SE S
Surface wnd spd.5 3 3 2 2 2 2 2 2 2 2 2
Surface wnd gst.9 9 9 8 8 8 7 7 7 7 6 7
Mix hgt (km)....1.5 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.SW SSE SSE SSE SE SE SE S S S S S
Transp wind spd.6 7 7 7 9 9 9 7 7 7 6 6
Trans wind dir..SW SSE SSE SSE SE SE SE S S S S S
Trans spd (m/s).3 3 3 3 4 4 4 3 3 3 3 3
Ceiling (kft)...10 7.3 7.3 7.3 5.8 4.5 2.7 1.5 1.3 1.3 1.8 1.3
.FRIDAY...
Sky/weather.........Partly sunny (60-70 percent). Chance of showers
and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
Chance of pcpn......70 percent.
Max temperature.....Around 87.
Min humidity........72 percent.
Max apparent temp...91.
Surface winds (mph).Light winds becoming southwest around 5 mph
late in the morning, then increasing to around
6 mph late in the morning shifting to the south
late in the afternoon shifting to the east
decreasing to around 5 mph late in the
afternoon.
Mixing height (m)...122-1036 meters AGL.
Transport winds.....Southwest 6 to 8 mph.
Transport winds m/s.Southwest 3 to 4 meters/second.
CEILING (KFT).......1.1 decreasing to 0.9 early in the morning,
then decreasing to 0.7 early in the morning
increasing to 0.9 late in the morning
increasing to 1.1 increasing to 1.7 late in the
afternoon.
Wind (20 ft)........Light winds becoming southwest around 5 mph
late in the morning, then shifting to the south
late in the afternoon shifting to the east late
in the afternoon becoming light. Gusty and
erratic winds expected near thunderstorms early
in the morning. Gusty and erratic winds
expected near thunderstorms in the late morning
and afternoon.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........71 62 77 79
Weather cov.....CHANCE CHANCE CHANCE LIKELY
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........S CHC S CHC CHANCE LIKELY
Chc of pcpn (%).30 30 30 70
Temp............72 76 83 83
RH..............97 90 74 74
Aparnt tmp (F)..72 76 90 90
20 FT wind dir..SE SSW SW SSE
20 FT wind spd..2 3 6 6
20 FT wind gust.7 8 9 10
Surface wind....SE 2G7 SSW 3G8 SW 6G9 SSE 6G10
Mix hgt (m).....150 120 460 1040
Transp wind dir.S SSW SW SW
Transp wind spd.6 6 8 8
Trans wind dir..S SSW SW SW
Trans spd (m/s).3 3 4 4
Ceiling (kft)...1.1 0.7 1.2 1.4
$$
Forecaster...SCHLOTZHAUER
Requested by...Dawson Primes
Type of request...HAZMAT
.TAG 2520617.3/LIX
.DELDT 08/28/25
.FormatterVersion 2.0.0
.EMAIL loesel.matthew@epa.gov,vtravis@tangipahoa.org,sr-lix.forecasters@noaa.gov,dawson.primes@tangipahoa.org