Archive for February 28th, 2006

February 28th, 2006

Tivo Hedging Bets in the Future of Media

Permalink | Comment (0) ~ Whatever!

I ran across this “post”:1 talking about how Diggnation is now getting distribution within Tivo’s “Podcaster” area. Interesting in that more and more “user-generated” content is being created on the web… and that Tivo is hedging its bets on where the creative center of gravity is heading in the media word. So in the future, maybe you’ll just buy a Tivo because it is a great device for receiving and storing video web content? Sort of like a real video iPod.


Diggnation on the Tivo “network”

If open, web-based distribution of media becomes at all successful — with a big question on the “if” — the major media companies of today will eventually need to respond… or become the major media companies of yesterday.

Zoinger says, the change will be total.

[1(Diggnation now on Tivo post)]http://krose.typepad.com/kevinrose/2005/12/diggnation_now_.html

February 28th, 2006

Some Thunder and Lightning Today

Permalink | Comment (0) ~ Weather

Thunder and lightning are pretty rare near the coast of California. However, we had a bit of it today due to the strong low-pressure system that moved through northern California today (wind gusts at 58 mph and 97 mph were reported yesterday at SFO and Angel Island respectively).

Here’s a screenshot of some of the strikes from about 11:00 am to noon as measured by “W6BUL-5″:1 located in Vacaville, CA.


Lightning strikes in northern California

For course, the National Weather Service was on it this morning. From the 5:00 am area forecast discussion…

bq.. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE POSSIBLE TODAY AS THE UPPER LOW CENTER MOVE ACROSS THE NORTHERN PART OF OUR CWA. THE ATMOSPHERE HAS BECOME UNSTABLE BEHIND THE FRONT THIS MORNINGS KOAK SOUNDING HAS AN LI OF -1.1 WITH 185 J/KG OF CAPE. WITH A SOUNDING FORECAST MAX T OF 60F THE CAPE INCREASES TO 637 J/KG WITH AN LI OF -3.9…PRETTY RESPECTABLE FOR OUR REGION.

p. “CAPE”:2 is the convective available potential energy, and LI is the lifting index both of which are measures of atmospheric instability. The KOAK sounding is the data retrieved from “radiosondes”:3 (an upper-air probes) attached to weather balloons released from Oakland, CA. You can find the current KOAK sounding “here”:4, and below is part of this morning’s sounding..


KOAK sounding

NOAA’s “storm prediction center”:5 issued this discussion for California.

bq.. PRIMARY BROKEN BAND OF TSTMS — WHICH HAS INCLUDED A FEW SMALL SUPERCELLS — IS EVIDENT ATTM IN VIS AND REFLECTIVITY IMAGERY FROM SIERRAN FOOTHILLS ESE SAC…SWWD TO NRN FRINGES OF MRY BAY.

p. Doppler radar station “KMUX”:6 picked up on some of the rain showers in this image from around noon today.


KMUX doppler radar image

Notice the area of strong radar reflection located in the Santa Cruz Mountains north of Santa Cruz, CA. Since the San Lorenzo runs almost due north/south (rare in California’s coastal range) southern storm winds lift moisture up the valley increasing rainfall with altitude. This is known as orthographic enhancement. In fact, places like Boulder Creek located up the San Lorenzo drainage can receive an order of magnitude more rain than Santa Cruz which sits at the mouth of the San Lorenzo river about 15 miles to the south.


Typical southern storm winds from the “USGS”:7 current wind page

[7(Bay Area current wind page)]http://sfports.wr.usgs.gov/cgi-bin/wind/windbin.cgi?x=296&y=104

[6(KMUX doppler radar station)]http://radar.weather.gov/radar.php?rid=mux&product=N0R&overlay=11101111&loop=no

[5(NOAAs storm prediction center homepage)]http://www.spc.noaa.gov/

[4(Current KOAK sounding at Unisys weather)]http://weather.unisys.com/upper_air/skew/skew_KOAK.html

[3(More on radiosondes)]http://www.aos.wisc.edu/~hopkins/wx-inst/wxi-raob.htm

[2(More on CAPE)]http://twister.sbs.ohio-state.edu/helpdocs/cape.html

[1(W6BUL-5 lightning conditions page)]http://members.dslextreme.com/users/eltorodelrio/Lightning/StormVue.html


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