The Bomb Cyclone Has Dropped


rehoboth beach web cam, delaware, sussex county, bomb cyclone
7:30 AM Rehoboth beach …High tide is at 9 AM and the ocean looks calm, water is up but too bad expect it to increase as the storm progresses.

I love these weather terms and so do the weather and news sites.  Sounds scary right?  The real term for this phenomenon is  explosive cyclogenesis, or bombogenesis and it is actually very common.  It refers to a low pressure system’s central pressure when it drops 24 millibars in 24 hours.  A millibar is a unit of pressure measurement, that refers to the force exerted by the air’s weight.. It is used by meteorologists, people who study weather, not meteors.

A low pressure system is defined as  .. “The region where the pressure of the atmosphere at sea level is lower than the surrounding area. As winds converge in the area, they rotate in the same direction as the Earth and can form a cyclone in the center of the region. The circulation within the system makes air move up higher into the atmosphere, where moisture in the air condenses and forms precipitation.”


ventusky, delaware, sussex county, bomb cyclone
Wind gusts at 7:30 AM seen on Ventusky

Our bomb cyclone winds cranked up this morning.  Thankfully for us on the coast of Delaware the northwest wind is being slowed down by land and the Chesapeake bay. Wind gusts are exceeding 60 MPH across the Chesapeake bay and hitting the mid forties on the Delaware coast line.  Sustained winds on the coast of Delaware are averaging 30 MPH.  Off the coast the winds are increasing, with 60 MPH gusts.  This is happening right now and explains why the ocean looks so calm.  That will change tomorrow.


bomb cyclone, sussex county, delaware, ventusky
7:30 Am wind speeds are around 30 MPH for the coast of Delaware

Right now the northwest winds are pushing water away from Delaware, which is good news especially for back bay communities worried about flooding.  High tide is around nine this morning.  The high tide we need to be concerned with is Saturday morning, when the winds will be shifting out of the north.  Today if you are facing the westerly winds on the inland bay coast you will experience water being pushed in your direction. Places like Dewey Beach bayside, Tuckahoe acres and all along route 1.  I wouldn’t worry about roads flooding, yet.

weather advisories,mount holly, delaware, sussex county
All the weather advisories we are currently seeing for our region.

You can watch this storm in real-time on your phone weather apps with the wind layers or go to Ventusky on your computer and watch.  There are many layers for this app set the wind layer to the first choice at 10 meters above ground.  There is a choice for wind gusts as well.  The colors have a reference chart and your cursor will show the wind speed in any spot you select.   All of the weather advisories for our region can be seen at the National Weather service out of Mount Holly, NJ.

There is a chance of snow up north as the storm progresses, you can keep that up there.  Don’t forget we have a full moon which also influences higher than normal tides.

Stay safe and be smart when you have to go out and travel in this weather today for work.  I’m going to go look at the beaches and ocean. Tides, buoy data and the marine forecast are below.

Fish On!

Rich King

Tides Indian River Inlet allow a few hours difference for the inland bay areas around oak Orchard.

2018/03/02 Fri 01:57 AM -0.70 L
2018/03/02 Fri 08:51 AM 3.10 H
2018/03/02 Fri 2:37 PM -0.53 L
2018/03/02 Fri 9:08 PM 2.70 H
2018/03/03 Sat 02:48 AM -0.67 L
2018/03/03 Sat 09:35 AM 2.99 H
2018/03/03 Sat 3:21 PM -0.52 L
2018/03/03 Sat 9:54 PM 2.73 H
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Marine Forecast NOAA … 

Low pressure off the New Jersey coast early this morning will
intensify rapidly as it moves slowly out to sea over the weekend.
High pressure will move into the area for the early part of the
new week. Another low will affect the region from late Tuesday
into Wednesday.

Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm-
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm-
616 AM EST Fri Mar 2 2018


NW winds 25 to 30 kt with gusts up to 45 kt increasing
to 40 to 45 kt with gusts up to 60 kt. Seas 7 to 10 ft dominant
period 11 seconds. Rain.

NW winds 35 to 45 kt with gusts up to 60 kt,
diminishing to 30 to 35 kt with gusts up to 50 kt late. Seas 8 to
11 ft dominant period 10 seconds. Rain likely early in the
evening, then a chance of rain in the late evening and early

N winds 25 to 30 kt. Gusts up to 45 kt, decreasing to
35 kt in the afternoon. Seas 8 to 10 ft. Swell mainly from the E
with a dominant period of 12 seconds.

N winds 20 to 25 kt with gusts up to 35 kt. Seas
7 to 10 ft. Swell mainly from the E with a dominant period of
15 seconds.

N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 35 kt. Seas 7 to 10 ft.

N winds 15 to 20 kt with gusts up to 30 kt. Seas
6 to 9 ft.

N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 6 to 9 ft.

NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 6 to 9 ft.

E winds 5 to 10 kt. Seas 5 to 8 ft. A chance of rain in
the afternoon.

E winds 10 to 15 kt. Seas 4 to 7 ft. A chance of

Buoy 44009  DELAWARE BAY 26 NM Southeast of Cape May, NJ

          Conditions at Buoy 44009 as of (6:50 am EST)  1150 GMT on 03/02/2018:                                                                                                                                                                  
5-day plot - Wind Direction Wind Direction (WDIR): W ( 280 deg true )
5-day plot - Wind Speed Wind Speed (WSPD): 35.0 kts
5-day plot - Wind Gust Wind Gust (GST): 40.8 kts
5-day plot - Wave Height Wave Height (WVHT): 6.6 ft
5-day plot - Dominant Wave Period Dominant Wave Period (DPD): 6 sec
5-day plot - Average Period Average Period (APD): 4.8 sec
5-day plot - Mean Wave Direction Mean Wave Direction (MWD): NW ( 314 deg true )
5-day plot - Atmospheric Pressure Atmospheric Pressure (PRES): 29.33 in
5-day plot - Pressure Tendency Pressure Tendency (PTDY): +0.00 in ( Steady )
5-day plot - Air Temperature Air Temperature (ATMP): 43.9 °F
5-day plot - Water Temperature Water Temperature (WTMP): 43.0 °F
5-day plot - Dew Point Dew Point (DEWP): 30.7 °F
5-day plot - Wind Chill Wind Chill (CHILL): 32.4 °F
5-day plot - Wind Speed at 10 Meters Wind Speed at 10 meters (WSPD10M): 36.9 kts
5-day plot - Wind Speed at 10 Meters Wind Speed at 20 meters (WSPD20M): 38.9 kts


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