Spot Forecast
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Spot Forecast for Roseland Event...Tangipahoa Parish Emergency Management
National Weather Service New Orleans LA
322 PM CST Fri Nov 21 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...

Rain this morning brings some welcomed moisture to the ground. An
additional tenth of an inch is possible through the evening hours
north of the I-10/12 corridor. The next rain is expected Tuesday
into Wednesday and is associated with a low pressure system now
moving out of the Pacific across Baja and into the desert
southwest. Rain amounts with this system look to range from a few
hundredths at the coast to around 3/4 inch in the southwest MS
counties. RH will remain quite high ahead of that system. Fog is
still a possibility in the late night to mid-morning hours and we
will be watching this closely. Winds will vary directionally
through the forecast period, but should stay under 10kt and
possibly under 5kt at times.


.REST OF TODAY...

Sky/weather.........Partly sunny (60-70 percent). Chance of showers
                    and thunderstorms late in the afternoon, then
                    slight chance of showers and thunderstorms late
                    in the afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 81.
Min humidity........77 percent.
Max apparent temp...79.
Surface winds (mph).Southwest winds 6 to 8 mph.
Mixing height (m)...183-366 meters AGL.
Transport winds.....Southwest 8 to 9 mph.
Transport winds m/s.Southwest around 4 meters/second.
CEILING (KFT).......9.5 increasing to 11 late in the afternoon.
Wind (20 ft)........Southwest winds 6 to 7 mph. Gusty and erratic
                    winds expected near thunderstorms.

TIME (CST)      4PM 5PM
Sky (%).........66  65
Weather cov.....CHC SCH
Weather type....RW  RW
Tstm cov........CHC SCH
Chc of pcpn (%).30  20
Temp............79  77
RH..............77  82
Aparnt tmp (F)..79  77
20 FT wind dir..SSW SSW
20 FT wind spd..8   6
20 FT wind gust.13  12
Surface wnd dir.SSW SSW
Surface wnd spd.8   6
Surface wnd gst.13  12
Mix hgt (km)....0.4 0.2
Transp wind dir.WSW SW
Transp wind spd.9   8
Trans wind dir..WSW SW
Trans spd (m/s).4   4
Ceiling (kft)...9.5 11

.TONIGHT...

Sky/weather.........Mostly cloudy (50-60 percent) then becoming
                    partly cloudy (35-45 percent) then becoming
                    mostly cloudy (60-70 percent). Patchy fog
                    overnight. Areas of fog after 3 am.
Chance of pcpn......10 percent.
Min temperature.....Around 64.
Max humidity........100 percent.
Max apparent temp...75.
Surface winds (mph).Light winds.
Mixing height (m)...152-183 meters AGL.
Transport winds.....Southwest 8 to 10 mph.
Transport winds m/s.Southwest around 4 meters/second.
CEILING (KFT).......25 decreasing to 1.3 overnight, then decreasing
                    to 0.7 overnight increasing to 0.8 overnight
                    decreasing to 0.6 decreasing to 0.4 after 3 am
                    decreasing to 0.3.
Wind (20 ft)........Light winds.

TIME (CST)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........57  49  44  32  30  38  37  52  51  61  73  82
Weather cov.....                                PTY PTY ARS ARS
Weather type....                                FOG FOG FOG FOG
Tstm cov........
Chc of pcpn (%).10  10  10  0   0   0   0   10  10  10  10  0
Temp............75  70  69  69  68  68  67  67  67  67  66  66
RH..............87  100 100 100 100 100 100 100 100 100 100 100
Aparnt tmp (F)..75  70  69  69  68  68  67  67  67  67  66  66
20 FT wind dir..S   S   SSW SSW SSW SW  SW  SW  SW  WSW WSW WSW
20 FT wind spd..3   3   2   2   2   2   2   2   2   2   2   2
20 FT wind gust.9   8   9   9   9   9   9   9   9   9   9   8
Surface wnd dir.S   S   SSW SSW SSW SW  SW  SW  SW  WSW WSW WSW
Surface wnd spd.3   3   2   2   2   2   2   2   2   2   2   2
Surface wnd gst.9   8   9   9   9   9   9   9   9   9   9   8
Mix hgt (km)....0.2 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  SSW SSW SW  SW  WSW WSW WSW WSW W   W   W
Transp wind spd.8   8   8   8   9   10  10  9   9   9   9   8
Trans wind dir..SW  SSW SSW SW  SW  WSW WSW WSW WSW W   W   W
Trans spd (m/s).4   4   4   4   4   4   4   4   4   4   4   4
Ceiling (kft)...25  25  25  25  25  25  1.3 0.7 0.8 0.6 0.4 0.3

.SATURDAY...

Sky/weather.........Mostly cloudy (75-85 percent) then becoming
                    mostly sunny (30-40 percent). Patchy fog early
                    in the morning.
Chance of pcpn......10 percent.
Max temperature.....Around 81.
Min humidity........67 percent.
Max apparent temp...85.
Surface winds (mph).Light winds becoming northwest 5 to 7 mph in
                    the late morning and afternoon.
Mixing height (m)...152-1006 meters AGL.
Transport winds.....West 6 to 10 mph.
Transport winds m/s.West 3 to 4 meters/second.
CEILING (KFT).......0.3 increasing to 25.
Wind (20 ft)........Light winds becoming northwest 5 to 6 mph in
                    the late morning and afternoon.

TIME (CST)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........84  83  71  73  72  71  48  47  33  32  30  19
Weather cov.....PTY PTY
Weather type....FOG FOG
Tstm cov........
Chc of pcpn (%).0   0   10  10  10  0   10  10  10  10  10  10
Temp............66  65  68  72  75  78  79  79  81  79  79  76
RH..............100 100 100 97  90  82  79  74  69  72  67  74
Aparnt tmp (F)..66  65  68  72  75  78  79  79  85  79  79  76
20 FT wind dir..WSW WSW W   W   W   WNW NW  WNW WNW WNW NW  NW
20 FT wind spd..2   2   3   5   6   6   6   6   7   7   6   5
20 FT wind gust.8   8   9   9   10  10  10  10  12  12  12  9
Surface wnd dir.WSW WSW W   W   W   WNW NW  WNW WNW WNW NW  NW
Surface wnd spd.2   2   3   5   6   6   6   6   7   7   6   5
Surface wnd gst.8   8   9   9   10  10  10  10  12  12  12  9
Mix hgt (km)....0.2 0.2 0.3 0.4 0.5 0.7 0.9 1.0 1.0 0.9 0.5 0.2
Transp wind dir.W   W   W   W   WNW WNW W   W   W   WNW WNW NW
Transp wind spd.7   7   8   9   9   8   10  9   10  8   7   6
Trans wind dir..W   W   W   W   WNW WNW W   W   W   WNW WNW NW
Trans spd (m/s).3   3   4   4   4   4   4   4   4   4   3   3
Ceiling (kft)...0.3 0.3 0.3 0.8 1.3 3.5 3.5 4.5 4.5 4.5 25  25

$$
Forecaster...SCHLOTZHAUER
Requested by...Dawson Primes
Type of request...HAZMAT
.TAG 2526518.0/LIX
.DELDT 11/21/25
.FormatterVersion 2.0.0
.EMAIL ssresponse@responsegroupinc.com,sr-lix.forecasters@noaa.gov,vtravis@tangipahoa.org,dawson.primes@tangipahoa.org