Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 22-03-2023, 19:18   #1
Registered User

Join Date: Mar 2016
Location: San Francisco
Boat: Morgan 382
Posts: 1,692
Bomb cyclone hit San Francisco

A bomb cyclone hit San Francisco yesterday. Close to 100 kts was reported in Sausalito. The famous "Taj Mahal" houseboat sank. Across the bay in the estuary a marina lost an entire dock. I check on my boat tomorrow morning, in Sausalito near the Taj Mahal, but behind a breakwater. I can still reach it via Starlink, so she is at least above water. Unrelated to sailing, windows were falling out of skyscrapers landing on the streets. Sorry for all the facebook links, that is how many people post photos.

https://www.facebook.com/captbenr/vi...0332311426471/

https://www.facebook.com/alain.poule...jv1bWy8gzLg17l

https://www.facebook.com/photo.php?f...9983309&type=3

https://www.facebook.com/photo/?fbid...16321138485829

https://www.facebook.com/photo/?fbid...16321138485829
__________________
-Warren
wholybee is online now   Reply With Quote
Old 22-03-2023, 19:46   #2
Registered User
 
Jamme's Avatar

Join Date: Feb 2020
Location: Stamford, CT
Boat: Beneteau Oceanis 31
Posts: 616
Re: Bomb cyclone hit San Francisco

Wow. Sound really awful.

https://www.cbsnews.com/amp/sanfranc...dly-windstorm/

Best of luck with your boat.
__________________
"I always arrive late at the office, but I make up for it by leaving early.” – Charles Lamb
Jamme is offline   Reply With Quote
Old 22-03-2023, 20:34   #3
Moderator
 
Jim Cate's Avatar

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 20,594
Re: Bomb cyclone hit San Francisco

More info:

https://us.yahoo.com/news/two-girls-...112755341.html

Glad I was down here in peaceful Tasmania!

Jim
__________________
Jim and Ann s/v Insatiable II, back in Cygnet where winter is looming and the solar panels are hibernating.
Jim Cate is offline   Reply With Quote
Old 22-03-2023, 21:08   #4
Moderator
 
Don C L's Avatar

Join Date: Sep 2014
Location: Channel Islands, CA
Boat: 1962 Columbia 29 MK 1 #37
Posts: 13,127
Images: 58
Re: Bomb cyclone hit San Francisco

Glad I was here in SoCal! We only had a gale warning.
__________________
DL
Pythagoras
1962 Columbia 29 MKI #37
Don C L is offline   Reply With Quote
Old 22-03-2023, 21:32   #5
Registered User

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 6,248
Re: Bomb cyclone hit San Francisco

We we did decide to scrub the Tuesday nite racing. I think "bomb" translates to the forecasters ignored the obvious weather pattern I saw developing out the windows. It was a tight little local low that the models did not do well on.

The good news is that there was no major damage in Santa Cruz, outside of a few boats who need to secure their roller furling jibs better. I think the waves moved some more sand in the entrance of the harbor, and it would be nice if the dredge worked a bit on the trouble spots before this weekend. The other good news is that the drought blamed on climate change is over.
donradcliffe is offline   Reply With Quote
Old 22-03-2023, 22:13   #6
Registered User
 
Franziska's Avatar

Join Date: Mar 2011
Location: Panschwitz, Germany
Boat: Woods Mira 35 Catamaran
Posts: 3,728
Re: Bomb cyclone hit San Francisco

Quote:
Originally Posted by Jim Cate View Post
More info:

https://us.yahoo.com/news/two-girls-...112755341.html

Glad I was down here in peaceful Tasmania!

Jim
JIM, that was the wrong link I guess
__________________
www.ladyrover.com
Franziska is online now   Reply With Quote
Old 23-03-2023, 01:10   #7
Senior Cruiser
 
GordMay's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 47,170
Images: 241
Re: Bomb cyclone hit San Francisco

According to the National Ocean Service (NOAA):
Bombogenesis occurs when a midlatitude (the latitudes between the tropics and polar regions) cyclone rapidly intensifies, or strengthens, over a 24 hour period. This intensification is represented by a drop in millibars.

The American Meteorological Society defines a “bomb” as:
An extratropical surface cyclone with a central pressure that falls on the average at least 1 mb h-1 for 24 hours.

Simply put, this means a storm is intensifying very quickly, which can result in more severe impacts, than what a weaker storm would produce. Most [but not all] Bomb Cyclones develope over water, more often on the US East coast, than the West.

The intensification required to classify as "bombogenesis" varies by latitude. At 60 degrees latitude*, it is a drop of at least 24 millibars (24 hectopascals) over 24 hours. At the latitude of New York City, the required pressure drop is about 17.8 millibars (17.8 hectopascals) over 24 hours.

Bombogenesis can happen when a cold air mass collides with a warm air mass, such as air over warm ocean waters. It is popularly referred to as a bomb cyclone.

To calculate the pressure drop needed for a bomb cyclone, you take the sine of the latitude where the low pressure is located, and divide it by the sine of 60 degrees*. Multiply that result by 24, and that is the number of millibars the storm's pressure must drop, to officially qualify it as a bomb cyclone, at the given latitude.

* Why 60 degrees? Swedish meteorology researcher, Tor Bergeron, initially defined "rapidly deepening" storms as those that met the 24 millibars-in-24 hours criterion, and that's the latitude where Bergeron was, when he developed the initial scale.
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is online now   Reply With Quote
Old 23-03-2023, 01:56   #8
Moderator
 
Jim Cate's Avatar

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 20,594
Re: Bomb cyclone hit San Francisco

Quote:
Originally Posted by Franziska View Post
JIM, that was the wrong link I guess
well Damn! Sorry about that, dunno how it snuck in!

Real link (I hope);

https://www.latitude38.com/lectronic...n-gate-bridge/

Jim
__________________
Jim and Ann s/v Insatiable II, back in Cygnet where winter is looming and the solar panels are hibernating.
Jim Cate is offline   Reply With Quote
Old 23-03-2023, 08:34   #9
Registered User

Join Date: Mar 2016
Location: San Francisco
Boat: Morgan 382
Posts: 1,692
Re: Bomb cyclone hit San Francisco

My boat is fine, thankfully. I had a dockline break, but a kind person took care of it for me. Another boat in the marina lost their jib, but overall we seem to have faired well

The next dock over, the Taj Mahal is listing, and i hear large pumps running.
__________________
-Warren
wholybee is online now   Reply With Quote
Old 23-03-2023, 12:03   #10
Registered User

Join Date: Mar 2016
Location: North of San Francisco, Bodega Bay
Boat: 44' Custom Aluminum Cutter, & Pearson 30
Posts: 479
Re: Bomb cyclone hit San Francisco

Facebook will not let me look. Im not a member .
NorthCoastJoe is offline   Reply With Quote
Reply

Tags
san francisco

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cat 4 Cyclone Chapala to hit...Yemen? jimbunyard Weather | Gear, Reports and Resources 1 01-11-2015 03:58
Crew Wanted: PNW to San Francisco, San Fran to San Diego and San Diego to Mexico svasunto Crew Archives 19 09-09-2015 19:44
Tropical Cyclone Yasi to Hit Queensland Coast downunder Cruising News & Events 141 10-03-2011 02:14

Advertise Here


All times are GMT -7. The time now is 08:32.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.