No-name storms: Left out of the database.

[Ptarmigan]

"I can't think of any storm that large."

That's because, bascially, there isn't one.

It is truly one of a kind storm. It was a true superstorm.

[Tampa Bay Hurricane]

Florida experienced winds in excess of 100 mph A Category 2 Hurricane
Equivalent:

http://ww2010.atmos.uiuc.edu/(Gh)/arch/cases/930312/hist.rxml

March 1993:
On March 12, 1993, a newly formed cyclone moved into a low level baroclinic zone already in place over the Gulf of Mexico and began to rapidly intensify. The deepening cyclone turned northeastward (Fig 1.1) and the center of low pressure made landfall (Fig 1.2) in northwestern Florida during the early hours of March 13. An intense squall line (Fig 1.3) preceding a rapidly moving cold front raced across Florida with torrential downpours, wind gusts in excess of 40 m/s, 3-4 meter storm surges and 11 confirmed tornado touchdowns (Radar Loop (QT-800K)).


Recorded Wind Gusts
Mount Washington, NH 144 MPH
Franklin County, FL 110 MPH
Dry Tortugas, FL 109 MPH
Flattop Mountain, NC 101 MPH

[Jam151]

September 5, 2002 Newfoundland
ftp://eclipse.ncdc.noaa.gov/pub/isccp/b ... E-8-IR.jpg

A lot of these really do have data suggesting they were TSs or STSs, per Gary Padgett's reports.

[Cyclone1]

October 7, 2006 - Broad low offshore New England. 90L.INVEST for a while, had subtropical characteristics.
ftp://eclipse.ncdc.noaa.gov/pub/isccp/b1/.D2790P/images/2006/280/Img-2006-10-07-12-GOE-12-IR.jpg

Jam's got the right idea. Imageshack was getting old. Links are fine.

This particular system likely wasn't subtropical, but it's an impressive, decently large low, which the NHC expected to become a subtropical storm briefly.

On an interesting, but seperate note, the swirl over South Carolina became a small, but strong nor'easter.

[brunota2003]

Yeah those are interesting cases. Some others I know of are

November 2, 2006 Far North Pacific (!!!)
ftp://eclipse.ncdc.noaa.gov/pub/isccp/b ... -11-IR.jpg

[rest of links deleted for space]

I'm probably forgetting others.

(edited to add October 3, 2000)

Dang! That has an eye even. Looks like the Unnamed Hurricane of 1991 The one that formed from Grace's Remnants and the decaying Nor' Easter.
http://www.ncdc.noaa.gov/oa/satellite/s ... med91.html

EDIT: To change 1992 to 1991 and to add the link

[HalloweenGale]

June 26, 2006 New Jersey
ftp://eclipse.ncdc.noaa.gov/pub/isccp/b ... -12-IR.jpg

I remember this one. It was an invest that has an STDS issued for it but made landfall in north carolina before it could become a depression, it got absorbed by a frontal system and was part of a huge flood event in this area.

That was the infamous 91L. Remember that one. Todd Gross was talking about how it clearly was a tropical depression, or even a moderate TS.

[HurricaneRobert]

NASA has a better picture of the thing from above:
http://earthobservatory.nasa.gov/Natura ... g_id=13951

[WindRunner]

NASA has a better picture of the thing from above:
http://earthobservatory.nasa.gov/Natura ... g_id=13951

Except that article makes the mistake of calling it subtropical and then saying that subtropical is the same thing as a hybrid . . . that (at least operationally) was called/appeared hybrid. I wouldn't want to say what it was for sure without doing some brief looking into it, but it was nonetheless an interesting storm.

[Squarethecircle]

NASA has a better picture of the thing from above:
http://earthobservatory.nasa.gov/Natura ... g_id=13951

Except that article makes the mistake of calling it subtropical and then saying that subtropical is the same thing as a hybrid . . . that (at least operationally) was called/appeared hybrid. I wouldn't want to say what it was for sure without doing some brief looking into it, but it was nonetheless an interesting storm.

If this is sub, then Vince should be as well.

[Cyclone1]

May 12, 1992


Interesting low, likely extratropical, but still worth posting.

[Squarethecircle]

Looks like it's got very tight convection; if it were in the waters in September this year, I would definitely say it would have a chance at being tropical, however, it does not look tropical in the picture.

[Derek Ortt]

the May 1992 system was a clear hurricane.

1992 was not one of the better years for the official classifications. Andrew may have been Danielle (Andrew in reality may have been a strong TS/weak cane that hit Virginia in January... a low had a distinct warm core with the highest winds not too far from the center... probably better defined than the classified Danielle)

[Ptarmigan]

the May 1992 system was a clear hurricane.

1992 was not one of the better years for the official classifications. Andrew may have been Danielle (Andrew in reality may have been a strong TS/weak cane that hit Virginia in January... a low had a distinct warm core with the highest winds not too far from the center... probably better defined than the classified Danielle)

If that's the case, assuming Danielle is Andrew, 1992 would be a more active year. It would be more normal year, 10 storms.

[Cyclone1]

3 preseason storms in 1992, man I wish Hurdat would hurry up!

[WindRunner]

3 preseason storms in 1992, man I wish Hurdat would hurry up!

Trust me Cyclone, people are workinig at it . . . the real question is when the committee will meet again to approve a lot of the reanalyses.

[Cyclone1]

Yeah... The wait is just agonizing.

Anyway, two October 1997 East Atlantic hurricanes.

October 6, 1997


October 26, 1997



1997 seems a little more interesting than just Danny and Erika now, eh?

[Ptarmigan]

Yeah... The wait is just agonizing.

Anyway, two October 1997 East Atlantic hurricanes.

October 6, 1997


October 26, 1997



1997 seems a little more interesting than just Danny and Erika now, eh?

The one on top looks like a hurricane, a small one. If they are, than 1997 was more active than previously thought.

[Jam151]

Derek, which May 1992 storm are you referring to, the one on May 11-13 or the one on May 15-17? Both looked subtropical at best, probably extratropical, on the GIBBS images.

[Derek Ortt]

This unnamed May hurricane from 1992

http://www.camex4.com/photo0016.html

[Jam151]

I'm not sure that's a photo of the system in question. On the global satellite imagery it definitely doesn't look like that image.

ftp://eclipse.ncdc.noaa.gov/pub/isccp/b ... E-7-IR.jpg