Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Flood Watch until June 19, 07:00 AM CDT

Current conditions at

New Orleans, New Orleans International Airport (KMSY)

Lat: 29.99°NLon: 90.25°WElev: 3ft.

Overcast

78°F

26°C

Humidity	93%
Wind Speed	E 8 mph
Barometer	29.83 in (1010.3 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	17 Jun 1:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Destrehan LA

Flood Watch June 17, 02:42am until June 19, 07:00am

Click here for hazard details and duration

Flood Watch

Flood Watch June 17, 02:42am until June 19, 07:00am
NOW until 7:00am Fri
Flood Watch
Overnight
Low: 77 °F
Chance
T-storms
Wednesday
High: 86 °F
Chance
T-storms
Wednesday Night
Low: 78 °F
T-storms
Thursday
High: 89 °F
T-storms
Likely
Thursday Night
Low: 80 °F
Chance
T-storms then
Chance
Showers
Juneteenth
High: 92 °F
Chance
T-storms then
T-storms
Likely
Friday Night
Low: 78 °F
Chance
T-storms then
Slight Chance
Showers
Saturday
High: 90 °F
T-storms
Likely

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 86. South wind 10 to 15 mph, with gusts as high as 25 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms, mainly before 5am, then showers and possibly a thunderstorm after 5am. Low around 78. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday

Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 89. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

Thursday Night

A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.

Juneteenth

Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. South wind 5 to 10 mph. Chance of precipitation is 70%.

Friday Night

A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Saturday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.

Saturday Night

Mostly cloudy, with a low around 79. South wind around 5 mph.

Sunday

Mostly sunny, with a high near 91. South wind 5 to 15 mph.

Sunday Night

Partly cloudy, with a low around 79. South wind around 10 mph.

Monday

Sunny, with a high near 94. Southwest wind 5 to 10 mph.

Monday Night

Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.