# High Tide Bulletin: Spring 2018

## When you may experience higher than normal tides between March and May 2018. 

HomeNewsHigh Tide Bulletin Archive

The rising and falling of the sea is a phenomenon upon which we can always depend. Tides are the regular rise and fall of the sea surface caused by the gravitational pull of the moon and sun and their position relative to the earth.There are some factors that cause the tides to be higher than what is "normally" seen from day to day. This bulletin tells you when you may experience higher than normal high tides for the period of time between March and May 2018.

## Regional **outlook** (Text only)

            -  Northeast 
            -  Mid-Atlantic
            -  Southeast
            -  Gulf Coast
            -  West Coast
            -  Pacific Islands
            -  Alaska

## **Northeast** outlook

*Includes Maine, New Hampshire, Massachusetts, Connecticut, and  New York*

### **When will the tides be higher than normal?**

              - May 15 - 18

### **Why will they be higher than normal?**

              - A perigean spring tide will be occurring. This is when the moon is either new or full and closest to earth.  Higher than normal high tides and lower than normal low tides will occur.
              - Tides will increase leading up to and after the June 21 summer solstice, due to the position of the sun relative to the equator.
              - Mean sea level is typically  higher due to changing weather patterns and increasing water temperatures.

### **What kind of impact might I expect along the coast?**

              - Due to the topography of the northeast (less low lying areas), tidal flooding will not likely cause a significant impact on the coast unless accompanied by storm or strong winds.

### **Where might I expect high tide flooding?**

              - Areas near the tide station at Kings Point, NY, have the greatest chance of seeing high tide flooding.

## **Mid-Atlantic** outlook

*Includes  New Jersey, Delaware, Pennsylvania, Maryland, District of Columbia, Virginia*

### **When will the tides be higher than normal?**

              - May 15 - 18

### **Why will they be higher than normal?**

              -   A perigean spring tide will be occurring. This is when the moon is either new or full and closest to earth.  Higher than normal high tides and lower than normal low tides will occur.
              - Tides will increase in the weeks leading up to and after the June 21 summer solstice, due to the position of the sun relative to the earth's equator.
              - Mean sea level is typically higher due to changing weather patterns and increasing water temperatures.

### **What kind of impact might I expect along the coast?**

              -  Minor tidal flooding along the coast, in particular in low-lying areas.
              - If a storm occurs at this time, increased levels of tidal flooding and coastal erosion may occur.
              - Lower than normal low tides will also occur.

### **Where might I expect high tide flooding?**

              - Areas near the tide station at Cape May, NJ, have the greatest chance of seeing high tide flooding.

## **Southeast** outlook

*Includes North Carolina, South Carolina, Georgia, Eastern Florida coast*

### **When will the tides be higher than normal?**

              - May 15 - 18

### **Why will they be higher than normal?**

              -  A perigean spring tide will be occurring. This is when the moon is either new or full and closest to earth, higher than normal high tides and lower than normal low tides will occur.
              - Tides will increase in the weeks leading up to and after the June 21 summer solstice, due to the position of the sun relative to the equator.
              - Mean sea level is typically higher due to changing weather patterns and increasing water temperatures.

### **What kind of impact might I expect along the coast?**

              -  Minor tidal flooding along the coast, in particular in low-lying areas.
              - If a storm occurs at this time, increased levels of tidal flooding and coastal erosion may occur.
              - Lower than normal low tides will also occur.

### **Where might I expect high tide flooding?**

              - Areas near the tide stations at Fort Pulaski, GA; Wilmington, NC; and Charleston, SC have the greatest chance of seeing high tide flooding.

## **Gulf Coast** outlook

*Includes Texas, Louisiana, Mississippi, Alabama, Western Florida coast*

### **When will the tides be higher than normal?**

              - The Gulf Coast will not be significantly impacted.

### **Why won’t they be impacted?**

              - In many locations of the Gulf Coast, the tidal range is relatively small compared to other regions of the U.S, so they will not be as significantly impacted by a perigean spring tide.

## **West Coast** outlook

*Includes California, Oregon, Washington State*

### **When will the tides be higher than normal?**

              - The West Coast will not be significantly impacted by high tide flooding this spring.

### **Why won’t this region be impacted?**

              -  Tides alone will not be enough to cause significant flooding.

## **Hawaii and the Pacific Islands** outlook

*Includes Hawaii, Guam, American Samoa, Midway, Kwajalein, and Wake Island*

### **When will the tides be higher than normal?**

              - Hawaii and Pacific Islands will not be significantly impacted.

### **Why won’t this region be impacted?**

              - Tides alone will not be enough to cause significant flooding.

## **ALASKA** outlook

### **When will the tides be higher than normal?**

              - Alaska will not be impacted this spring.

### **Why won’t this region be impacted?**

              - Due to the topography of Alaska (less low lying areas), tidal flooding will generally not have a significant impact on the coast unless there is a severe storm.         

Have a photo that shows coastal flooding in your region? Share it with us!

###### Quick **Links**

            - Center for Operational Oceanographic Products and Services:  the nation's official source for tidal information.
            - What is high tide flooding?
            - Why are there summer tides in the fall?
            - What is a perigean spring tide?
            - Archive of Past High Tide Bulletins

            - Provide Feedback 
            -  Contact Us 
            -  Report an error 

##### Science. Service.Stewardship.

###### 						About NOS 					

            - About Us
            - NOS Program Offices
            - Media Inquiries
            - Website Acknowledgements

###### 						Resources 					

            - Site Index
            - Disclaimer
            - Freedom of Information Act
            - Accessibility

###### 						More Resources 					

            - Information Quality
            - Privacy Policy
            - NOS For Employees
            - USA.gov

          -  National Ocean Service
          -  National Oceanic and Atmospheric Administration
          -  Department of Commerce

##### 						Social 					

            - 
            - 
            - 
            - 
            -