446
FNUS74 KLIX 301832
FWSLIX

Spot Forecast for Roseland Event...Tangipahoa Parish Emergency Management
National Weather Service New Orleans LA
132 PM CDT Sat Aug 30 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...

Lower humidity and cooler than average temperatures will continue
through tomorrow on the back of a persistent northeast wind of 5 to
10 mph.  Rain chances will remain lower than average through tomorrow
with largely dry conditions expected.  There is a low chance of a
thunderstorm developing over the impacted area late this afternoon, but
the overall threat of lightning will remain very limited.  Tonight
into tomorrow will see rain chances fall to near zero as even drier
air moves in from the north.

.REST OF TODAY...

Sky/weather.........Mostly sunny (30-40 percent). Slight chance of
                    showers and thunderstorms early in the
                    afternoon, then chance of showers and
                    thunderstorms late in the afternoon.
Chance of pcpn......30 percent.
Max temperature.....Around 86.
Min humidity........67 percent.
Max apparent temp...93.
Surface winds (mph).Northeast winds around 6 mph.
Mixing height (m)...1036-1250 meters AGL.
Transport winds.....North around 8 mph.
Transport winds m/s.North around 4 meters/second.
CEILING (KFT).......3.5 increasing to 5.8.
Wind (20 ft)........North winds around 5 mph. Gusty and erratic
                    winds expected near thunderstorms.

TIME (CDT)      2PM 3PM 4PM 5PM
Sky (%).........34  27  40  45
Weather cov.....SCH SCH CHC SCH
Weather type....RW  RW  RW  RW
Tstm cov........SCH SCH CHC SCH
Chc of pcpn (%).20  20  30  20
Temp............84  84  84  85
RH..............77  74  72  67
Aparnt tmp (F)..93  92  91  92
20 FT wind dir..N   NNE NNE NNE
20 FT wind spd..6   6   6   6
20 FT wind gust.10  12  12  12
Surface wnd dir.N   NNE NNE NNE
Surface wnd spd.6   6   6   6
Surface wnd gst.10  12  12  12
Mix hgt (km)....1.0 1.0 1.2 1.2
Transp wind dir.N   N   NNE NNE
Transp wind spd.8   8   8   8
Trans wind dir..N   N   NNE NNE
Trans spd (m/s).4   4   4   4
Ceiling (kft)...3.5 3.5 4.5 5.8

.TONIGHT...

Sky/weather.........Partly cloudy (30-40 percent).
Chance of pcpn......10 percent.
Min temperature.....Around 69.
Max humidity........97 percent.
Max apparent temp...90.
Surface winds (mph).Northeast winds around 6 mph decreasing to
                    around 5 mph.
Mixing height (m)...122-1250 meters AGL.
Transport winds.....Northeast 7 to 8 mph.
Transport winds m/s.Northeast 3 to 4 meters/second.
CEILING (KFT).......5.8 increasing to 25.
Wind (20 ft)........Northeast winds around 5 mph early in the
                    evening becoming light.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........48  39  43  46  40  27  17  21  24  31  41  20
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  0   0   0   0   0   0   0   0   0   0   0
Temp............83  81  79  75  74  73  73  72  72  71  71  70
RH..............74  79  82  94  93  93  90  93  93  97  93  97
Aparnt tmp (F)..90  86  79  75  74  73  73  72  72  71  71  70
20 FT wind dir..NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
20 FT wind spd..6   5   3   2   2   2   2   2   2   2   2   3
20 FT wind gust.10  9   9   8   8   7   7   7   7   8   9   9
Surface wnd dir.NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE  NE
Surface wnd spd.6   5   3   2   2   2   2   2   2   2   2   3
Surface wnd gst.10  9   9   8   8   7   7   7   7   8   9   9
Mix hgt (km)....1.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1
Transp wind dir.NNE NE  NE  NE  ENE ENE ENE ENE ENE ENE ENE ENE
Transp wind spd.8   7   7   7   7   7   7   7   7   7   7   7
Trans wind dir..NNE NE  NE  NE  ENE ENE ENE ENE ENE ENE ENE ENE
Trans spd (m/s).4   3   3   3   3   3   3   3   3   3   3   3
Ceiling (kft)...5.8 25  25  25  25  25  25  25  25  25  25  25

.SUNDAY...

Sky/weather.........Mostly sunny (25-35 percent).
Chance of pcpn......10 percent.
Max temperature.....Around 89.
Min humidity........54 percent.
Max apparent temp...92.
Surface winds (mph).Northeast winds around 5 mph increasing to 6 to
                    7 mph in the late morning and afternoon.
Mixing height (m)...122-1676 meters AGL.
Transport winds.....East 7 to 12 mph.
Transport winds m/s.East 3 to 5 meters/second.
CEILING (KFT).......25.
Wind (20 ft)........Light winds becoming northeast 5 to 6 mph in
                    the late morning and afternoon.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........23        28        30        23
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0         10
Temp............70        75        85        87
RH..............97        90        63        57
Aparnt tmp (F)..70        75        90        92
20 FT wind dir..NE        ENE       ENE       ENE
20 FT wind spd..3         6         7         7
20 FT wind gust.10        12        12        13
Surface wind....NE 3G10   ENE 6G12  ENE 7G12  ENE 7G13
Mix hgt (m).....120       120       670       1490
Transp wind dir.ENE       ENE       E         ENE
Transp wind spd.7         9         12        10
Trans wind dir..ENE       ENE       E         ENE
Trans spd (m/s).3         4         5         4
Ceiling (kft)...25        25        25        25

$$
Forecaster...GRIGSBY
Requested by...Dawson Primes
Type of request...HAZMAT
.TAG 2520618.5/LIX
.DELDT 08/30/25
.FormatterVersion 2.0.0
.EMAIL dawson.primes@tangipahoa.org,vtravis@tangipahoa.org,loesel.matthew@epa.gov,sr-lix.forecasters@noaa.gov