Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Hazardous Weather Conditions

Special Marine Warning in effect from May 21, 05:08 AM CDT until May 21, 06:45 AM CDT

For More Weather Information:

Corpus Christi, TX Local Forecast Office

19NM SSW Port Aransas TX

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
SSE 10kt
3ft
Tonight
Low: 78 °F
SE 12kt
3ft
Friday
High: 80 °F
SE 13kt
2-3ft
Friday Night
Low: 79 °F
SE 14kt
3ft
Saturday
High: 80 °F
SSE 13kt
3ft
Saturday Night
Low: 77 °F
SE 13kt
3ft
Sunday
High: 80 °F
S 9kt
3ft
Sunday Night
Low: 77 °F
ESE 8kt
2-3ft
Memorial Day
High: 80 °F
ESE 8kt
2-3ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:56 am CDT May 21, 2026
Forecast Valid: 5am CDT May 21, 2026-6pm CDT May 27, 2026

View Nearby Observations

Detailed Forecast

Today

SSE wind 8 to 10 kt becoming WSW in the morning. Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms, mainly between 9am and 3pm. Some of the storms could produce heavy rainfall. Seas around 3 ft. .

Tonight

SE wind 10 to 12 kt. A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Seas around 3 ft. .

Friday

SE wind 9 to 13 kt. A chance of showers and thunderstorms, mainly after 1pm. Seas 2 to 3 ft. .

Friday Night

SE wind 12 to 14 kt. A slight chance of showers and thunderstorms. Seas around 3 ft. .

Saturday

SSE wind 10 to 13 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Seas around 3 ft. .

Saturday Night

SE wind 10 to 13 kt. Showers and possibly a thunderstorm. Seas around 3 ft. .

Sunday

S wind 7 to 9 kt becoming ESE in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Seas around 3 ft. .

Sunday Night

ESE wind 5 to 8 kt becoming SSE after midnight. A chance of showers and thunderstorms. Seas 2 to 3 ft. .

Memorial Day

N wind 5 to 8 kt becoming ESE in the afternoon. A chance of showers and thunderstorms, mainly before 1pm. Seas 2 to 3 ft. .

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.