Over the Pacific, we often observed that secondary lows were better handled by the new system.

The storm formed as a secondary low.

Due to the Fujiwhara effect, the large circulation of the secondary low moved the original nor'easter towards the northwest.

The secondary low over Indiana produced light to moderate snowfall that extended to Wisconsin.

Late on January 6, the superstorm's secondary low became the dominant low in the system, as the storm system's circulation began to break down.

As the system entered West Virginia, a secondary low began to develop over South Carolina.

At the same time, the storm spawned a secondary low along its frontal boundary, over the Southeastern United States.

During the afternoon a frontal system on a secondary low in the Irish Sea gave a lot of rain to North Wales.

During triple-point cyclogenesis, the occluded parent low will fill as the secondary low deepens into the main weathermaker.

The low then coalesced with a secondary low which had formed in its wake, taking an elongated form over Denmark and the southern Baltic Sea.

As it approached the U.S. East Coast, a secondary low formed over Virginia on March 18 and gradually intensified.

As the primary storm entered New England, the secondary low produced minor coastal flooding in the Tidewater region of Virginia on December 23.

On December 17, the system developed a secondary low over New Jersey, at the end of an occluded front, even as the main circulation continued to slowly move eastward.

As the secondary low matured along the U.S. East Coast, the initial center weakened rapidly, and heavy rainfall developed over the Carolinas in association with the new low.

In an interaction known as the Fujiwhara effect, the broad circulation of the secondary low swung the primary nor'easter northwestward towards southern New York and New England.

Late on December 17, the storm system's frontal band exited the New England, even as the secondary low became the dominant low in the system, to the east of Maine.

The interaction and weak steering currents brought the storm almost to a halt, meandering around the Cape Verde islands before weakening to a tropical depression as it absorbed the secondary low.

During the day on Wednesday the 14th, this secondary low strengthened rapidly and moved northeastward along the mid-Atlantic and New England coasts while the primary low dissipated in the central Appalachians.

The St. Jude storm formed in the western Atlantic as a secondary low on the southern flanks of an area of low pressure to the east of southern Greenland; this Icelandic Low was named "Burkhard" by the Free University of Berlin.

The 0600 synoptic chart showed a stationary deep depression west of Norway with a secondary low in the North Sea, and a high steadily closing the west coast of Ireland, which could be expected to result in an increasingly strong northwesterly wind in the Irish Sea.