Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest
Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >
| NWS Forecast for: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035) Issued by: National Weather Service Key West, FL Last Update: 1020 PM EDT Tue Aug 18 2026 |  |
| Overnight: Northwest to north winds 10 to 15 knots early, becoming northwest and decreasing to near 10 knots. Seas 1 foot or less. Nearshore waters a light to moderate chop, becoming a light chop late. Wednesday: Northwest winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less. Nearshore waters smooth to a light chop, becoming a light chop. Wednesday Night: Northwest winds 10 to 15 knots, becoming 5 to 10 knots. Seas around 1 foot. Nearshore waters a light to moderate chop, becoming smooth to a light chop. A slight chance of showers and thunderstorms. Thursday: Northwest to west winds near 5 knots, becoming west. seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. Thursday Night: West winds near 5 knots, becoming southeast to south. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. Friday: South to southwest winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. Friday Night: Southeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers. Saturday: South winds near 5 knots, becoming southeast. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. Saturday Night Through Sunday Night: Southeast winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms. | |
| Zone Forecast: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035) | |
Visit your local NWS office at: https://www.weather.gov/key |