Posted on 09/29/2009 7:01:04 PM PDT by CedarDave
...A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA AND OREGON FROM THE CALIFORNIA-MEXICO BORDER TO THE OREGON-WASHINGTON BORDER...
RECOMMENDED ACTIONS A TSUNAMI HAS BEEN GENERATED WHICH COULD IMPACT THE ADVISORY REGIONS LISTED IN THE HEADLINE. PERSONS IN LOW-LYING COASTAL AREAS SHOULD BE ALERT TO INSTRUCTIONS FROM THEIR LOCAL EMERGENCY OFFICIALS. EVACUATIONS ARE ONLY ORDERED BY EMERGENCY RESPONSE AGENCIES. - PERSONS IN TSUNAMI ADVISORY AREAS SHOULD MOVE OUT OF THE WATER... OFF THE BEACH AND OUT OF HARBORS AND MARINAS.
FORECASTS INDICATE THAT A TSUNAMI WITH AMPLITUDES IN THE RANGE OF 20 TO 65CM IS EXPECTED ALONG THE CALIFORNIA AND OREGON COAST. TSUNAMIS OF THIS AMPLITUDE CAN GENERATE STRONG CURRENTS DANGEROUS TO THOSE VERY NEAR OR IN THE OCEAN. THE TSUNAMI IS EXPECTED TO BUILD AND REACH ITS MAXIMUM APPROXIMATELY ONE AND A HALF HOURS AFTER THE INITIAL ARRIVAL. TSUNAMI ARRIVAL TIMES AND OTHER AMPLITUDE FORECASTS ARE LISTED IN THE WEB SITE BELOW.
...A TSUNAMI ADVISORY IS IN EFFECT WHICH INCLUDES THE COASTAL AREAS OF CALIFORNIA AND OREGON FROM THE CALIFORNIA-MEXICO BORDER TO THE OREGON-WASHINGTON BORDER...
PERSONS IN TSUNAMI ADVISORY AREAS SHOULD MOVE OUT OF THE WATER... OFF THE BEACH AND OUT OF HARBORS AND MARINAS.
TSUNAMI ADVISORIES MEAN THAT A TSUNAMI CAPABLE OF PRODUCING STRONG CURRENTS OR WAVES DANGEROUS TO PERSONS IN OR VERY NEAR WATER IS IMMINENT OF EXPECTED. SIGNIFICANT WIDESPREAD INUNDATION IS NOT EXPECTED FOR AREAS IN AN ADVISORY. TSUNAMIS ARE A SERIES OF WAVES POTENTIALLY DANGEROUS SEVERAL HOURS AFTER INITIAL ARRIVAL TIME. ESTIMATED TIMES OF INITIAL WAVE ARRIVAL FOR SELECTED SITES IN THE ADVISORY ARE PROVIDED BELOW.
SANTA BARBARA-CA 2111 PDT SEP 29 SAN FRANCISCO-CA 2131 PDT SEP 29 LA JOLLA-CA 2116 PDT SEP 29 CHARLESTON-OR 2132 PDT SEP 29 CRESCENT CITY-CA 2120 PDT SEP 29 SEASIDE-OR 2205 PDT SEP 29
About 2 1/2 hours during rush hour.
Actually, that was on Good Friday, 1964.
“These wave heights are higher than those predicted by computer models made soon after the earthquake that triggered the tsunami.”
How much higher?
San Francisco was roughly an 8. They don’t have nine pointers in California, where the faults are “slip-faults.”
Off the coast of Washington / Oregon, nine pointers + are possible.....those are “subduction” type earthquakes. They last had one in the area in the year 1700....it sent a bad tsunami all the way to Japan.
Same event. Though tsunami pressure wave's can travel about 450-500 mph, it still takes time to cross the ocean. In the meantime as the wave spreads it loses energy as ripples from a rock in a pond lose energy as it spreads out vertically.
Not too big unless you are in shallow water on the coast and are sucked out into the ocean.
http://www.youtube.com/watch?v=JS1s0XeCkLo&feature=fvsr
Just kidding. I don't surf...unless you count the net.
The energy loss occurs as the increased volume of water reaches shallower depths coinciding with the approach to shorelines. However, depending upon the shoreline, if the shoreline sloughs off at all in reaction to earthquakes or to the increased surge of water, the tsunami from over a thousand miles away can still be the cause of serious damage.
I was taking a boat out of Ilwaca WA in a storm. Swells were a LOT higher than 2 feet. 2 feet is nothin imo.
It’s over, Johnny!
Goodbye San Francisco and LA!
Look at all that "brown" (tsunami advisory) coastline.
Unless you happened to be in Samoa
You might notice something if it coincides with high tide.
You need to ask? Well, of course our European cousins have always been our betters, so it follows that we should bend over backward to emulate everything they do.This is the most absurd thing I have ever heard here on FR. The scientific community uses the metric system because it gives them a measuring system consistent with what scientists use around the world, and because, well, it's just superior in every way. It's consistent and based on 10's (a kilometer is 1000 meters, a centimeter is 1/100 of a meter, a millimeter is 1/10 of a centimeter, etc.) as opposed to the absurd system we use here (how many feet in a mile again?).If you hadn't noticed, you'll almost never hear a university trained egghead using anything but the metric system when describing dimensions, distances, or volumes.
It's become something of a liberal flag. Americans who use the metric system in conversation are almost assuredly pompous libs.
And if it is really a liberal plot, then perhaps you'd care to explain why our military uses it.
I do and I'm neither liberal nor pompous. I did, however, major in Chemistry in college.
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