National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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Hazardous Weather Conditions

9NM ENE Cape Romano FL

Marine Point Forecast [NOTICE]

Overnight

Partly Cloudy

ESE 6kt
< 1ft

Low: 77 °F

Thursday

Thunderstorms Likely

E 6ktWinds Decreasing
< 1ft

High: 89 °F

Thursday
Night

Thunderstorms Likely

Winds IncreasingE 8kt
< 1ft

Low: 79 °F

Friday

Chance Thunderstorms

E 8kt
< 1ft

High: 88 °F

Friday
Night

Chance Thunderstorms

Winds IncreasingESE 8kt
< 1ft

Low: 80 °F

Saturday

Chance Thunderstorms

ENE 6ktWinds Decreasing
< 1ft

High: 90 °F

Saturday
Night

Partly Cloudy

Light Wind
< 1ft

Low: 80 °F

Sunday

Chance Thunderstorms

Light Wind
< 1ft

High: 91 °F

Sunday
Night

Mostly Cloudy

Light Wind
< 1ft

Low: 80 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:16 am EDT Aug 21, 2014
Forecast Valid: 3am EDT Aug 21, 2014-6pm EDT Aug 27, 2014

View Nearby Observations

Detailed Forecast

SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE HIGHEST 10 PERCENT OF THE WAVES.

  • SynopsisHIGH PRESSURE ACROSS THE SOUTH FLORIDA WATERS WILL SHIFT NORTH OF THE AREA THROUGH THE WEEKEND AND REMAIN IN CONTROL WITH LIGHT EASTERLY BREEZES AND LOW WAVE HEIGHTS IN THE FORECAST THROUGH THE WEEKEND.

    .GULF STREAM HAZARDS...NONE.

    THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF AUG 20, 2014 AT 1200 UTC...

    2 NAUTICAL MILES EAST SOUTHEAST OF FOWEY ROCKS. 8 NAUTICAL MILES EAST OF PORT EVERGLADES. 6 NAUTICAL MILES EAST OF LAKE WORTH. 7 NAUTICAL MILES SOUTHEAST OF JUPITER INLET.

    THIS DATA COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
  • Overnight ESE wind around 6 kt. Partly cloudy. Seas 1 ft or less. Bay and inland waters smooth.
  • Thursday E wind around 6 kt becoming variable and less than 5 kt. Showers and thunderstorms likely after 2pm. Seas 1 ft or less. Bay and inland waters smooth.
  • Thursday Night Variable winds less than 5 kt becoming E 5 to 8 kt after midnight. Showers and thunderstorms likely, mainly before 8pm. Seas 1 ft or less. Bay and inland waters smooth.
  • Friday E wind 6 to 8 kt becoming W in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas 1 ft or less. Bay and inland waters smooth.
  • Friday Night Variable winds less than 5 kt becoming ESE 5 to 8 kt after midnight. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less. Bay and inland waters smooth.
  • Saturday ENE wind around 6 kt becoming variable and less than 5 kt in the afternoon. A chance of showers and thunderstorms. Seas 1 ft or less. Bay and inland waters smooth.
  • Saturday Night Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less. Bay and inland waters smooth.
  • Sunday Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less. Bay and inland waters smooth.
  • Sunday Night Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less. Bay and inland waters smooth.
*Notices:
  1. 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.
  2. 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.