SFist: Two Interesting Signs

Chiot Moite

Wed, 17 Dec 2008 10:25:02 -0800

I'm not an oceanographer but i'll give explaining this a stab: When it is high tide, the tide is high, and therefore land that is low is now under water. Can I haz my scientist pay now? kthxbye.

David Latterman

Mon, 15 Dec 2008 21:17:42 -0800

Thanks. My first career was as a geologist. I bagged it to move out west and study people with rocks in their head.

ziarah

Mon, 15 Dec 2008 19:43:26 -0800

Whoa, who knew David Latterman was well-versed in SF watersheds on top of being a political analyst? At any rate, lots of storm-drain outflows tend to back up at high tide because the Bay water is high enough that stormwater can't flow into the Bay like normal. That's in addition to what David was talking about.

Brock Keeling

Mon, 15 Dec 2008 16:17:43 -0800

i'm all for breast feeding in public, but expect mothers who do not to get upset at gawkers.

joshb

Mon, 15 Dec 2008 16:17:30 -0800

High tide + big storm = waves overtopping the seawall along Embarcadero.

sf_bikebike

Mon, 15 Dec 2008 13:58:43 -0800

I only breast feed at high tide anyways.

Falcon

Mon, 15 Dec 2008 13:44:45 -0800

Yup, big tide swing brah. A 7.0 is pretty high bruddah.

httom

Mon, 15 Dec 2008 13:39:08 -0800

With the abnormally large (ie closer) moon, Saturday and Sunday gave us the highest tides in years (next higher tide: 2022!): http://www.sanluisobispo.com/news/local/story/551806.html However, it was only an inch higher than the previous record. The fact that it was windy and forming waves in the bay probably made more of a risk of flooding than the record high tide.

David Latterman

Mon, 15 Dec 2008 13:38:36 -0800

Mission and Embarcadero was part of an old tidal marsh, as was much of the SF coast. These are subject to tides, so there may have been a tidal channel inlet right at that point. Tides the the bay are small, so maybe only a spring (full moon) high tide in the right conditions (like all these storms) could cause flooding. Here's an old SF watershed map: http://www.museumca.org/creeks/SFTopoCreeks.html