Tropical Depression Four
Tropical depression (SSHWS/NWS)
Tropical Storm Matthew 2004
Four approaching the Carolinas
FormedMay 29
DissipatedMay 31
Highest winds1-minute sustained:
35 mph (55 km/h)
Lowest pressure1006 mbar (hPa); 29.71 inHg
Areas affectedThe Carolinas
Part of the 2100 Atlantic hurricane season
Four 2100 path


Patty 2012

The area of disturbed weather that would eventually become Tropical Depression Four

Tropical Depression Four was a depression that affected the Carolinas and surrounding areas. It was the 4th depression of the record-breaking 2100 Atlantic hurricane season.

Meteorological history

On May 26, an area of disturbed weather formed north of Hispaniola. It moved westward as it gradually became better organized. The system then turned northwestward, and the NHC gave it a 10% chance to develop early on May 28 while north of the Bahamas and approaching the Carolinas. Environmental conditions were at first somewhat favorable, but gradually became more favorable for development. Organization continued, and it was at a 60% chance of development early on May 29. It then became organized enough to be declared a tropical depression on the afternoon of May 29 while near the Gulf Stream.

Because it was close to land, development into a TS appeared unlikely. The depression steadily strengthened until it made landfall in South Carolina on May 30. After landfall, the depression weakened over land and the last advisory was issued on it on May 31. Its remnants turned northeastward and emerged back into the Atlantic. Here, the NHC gave the remnants a 10% chance to regenerate. However, wind shear caused it to weaken, and the chances decreased to 0% before it dissipated completely on June 2. Over all, the depression caused minimal damage and no deaths. This was because the structures in 2100 were strong, hurricane-proof, and high-tech.

Preparations and impact

When the depression formed, a tropical storm watch was issued for the Carolinas. It was later discontinued when the depression failed to strengthen into a TS before making landfall.

The depression caused heavy rain to fall in the Carolinas. But the rain didn't cause much damage. The depression also produced a couple of waterspouts and a few funnel clouds, but the waterspouts never made landfall and the funnel clouds never touched down.

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