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

Small Craft Advisory in effect from May 21, 07:00 AM EDT until May 21, 06:00 PM EDT

For More Weather Information:

Baltimore, MD/Washington, D.C. Local Forecast Office

6NM SSE Annapolis MD

Marine Point Forecast

[NOTICE]

Thursday
NNE 15kt
1-2ft

Small Craft Advisory
Thursday Night
ENE 11kt
1ft
Friday
E 14kt
2ft
Friday Night
E 13kt
1-2ft
Saturday
ENE 15kt
2ft
Saturday Night
ENE 12kt⇓
1ft
Sunday
Light Wind
< 1ft
Sunday Night
Light Wind
< 1ft
Memorial Day
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:22 am EDT May 21, 2026
Forecast Valid: 3am EDT May 21, 2026-6pm EDT May 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EDT THIS MORNING THROUGH

Thursday

NNE wind 11 to 15 kt. A chance of showers before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog after 3pm. Waves 1 to 2 ft.

Thursday Night

ENE wind around 11 kt. A chance of showers and thunderstorms. Waves around 1 ft.

Friday

E wind 12 to 14 kt, with gusts as high as 22 kt. Showers. Waves around 2 ft.

Friday Night

E wind around 13 kt, with gusts as high as 21 kt. Showers. Waves 1 to 2 ft.

Saturday

ENE wind around 15 kt. Showers, with thunderstorms also possible after 5pm. Waves around 2 ft.

Saturday Night

ENE wind 9 to 12 kt decreasing to 5 to 8 kt after midnight. Showers and possibly a thunderstorm before 2am, then showers likely. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. Showers likely before 8am. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. A chance of showers. Waves 1 ft or less.

Memorial Day

Variable winds 5 kt or less. Showers likely. Waves 1 ft or less.

*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.