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Article #253Re: SKYWARN Digest - 1 May 1998 to 2 May 1998
From: Bob
Date: Sun, 03 May 1998 00:00
Date: Sun, 03 May 1998 00:00
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4343 bytes
Kevin Heyboer wrote: > > However, please explain the purpose of having real time radar at an > EOC....few, if any, emergency managers have the training to properly > interpret what they are seeing, and typically the only "real time" > product you can receive is the base echo.....NWS forecasters use several > different modes to interpret the incoming weather. Most particularly, > they scan the storms vertically....and I have NEVER seen this product > available on the open market. There is a lot more to forecasting a > severe thunderstorm than seeing a big red blob on the base echo radar > screen. Upper level dynamics, vertical lift, moisture in the > atmosphere and freeze level being just a few factors that are > considered. > > The only value of radar to the average person is to give them an idea of > the timing of the storms....the same is true for EOC personnel...and > that can be obtained off the internet. In addition, if severe weather > is expected, the local NWSFO should be transmitting an updated Hazardous > Weather Outlook and a NOWcast. The type of emergency operations centers I'm familiar with are at a sheriff's department, and an electric utility. Both of those use it not to forecast the severity, but to determine the direction of travel of the storm - severity is determined by the forecasters. In the case of the electric utility, they use the radar and the lightning detection network (NLDN) to decide whether to open (or leave open) district offices, as well as to determine staffing requirements. They recently went from WeatherBrief SAT, to DTN, and I find that they are constantly looking at the radar on the net because of the low resolution, and low update rate of DTN. I downloaded EMWIN, and attempted to show them all the products they could receive, and received EXTREMELY negative feedback because of all the bugs (all of which I've reported with no response, fix, or acknowledgement), and the difficult user interface. DTN, accuweather, and WeatherBrief SAT are ALL menu driven, and watching storm motion (direction) is just a mouse or key click away. I don't see why radar is not sent more frequently - 10 to 15 mins - it doesn't seem to need much bandwidth to send it. It would appear that MRC's implementation of EMWIN, and all it's products is geared to the amateur forcaster, not to an EOC, where they just want to see what's going where, and what warnings are present. In New York, every EOC that has anything to do with law enforcement receives almost real time severe weather warnings via NYSPIN. Selected NWW text is inserted onto NYSPIN, and distributed to appropriate areas (Broome agencies get Broome info, etc.) It's also kind of interesting that that data on GOES is now uplinked using an almost proprietary modulation technique. Whats wrong with FM2? Also I've called Zephyrus to ask about the G4 feed, and what subcarrier they'll be using there. No answer. As far as error free data goes, I've seen text products and graphics be missed for an hour, and this is from the EMWIN server. I tried to promote this thing in an EOC environment (what it's intended for), and they don't like it in it's present form. +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ To unsubscribe from SKYWARN send e-mail to LISTSERV@PO.UIUC.EDU with "unsub skywarn" in the body of your message. If you need help or more information on the SKYWARN discussion group write to chris@siu.edu or see http://www.inlink.com/~landmb/intro.html. For more information on SKYWARN activities across the country visit http://www.skywarn.com and http://www.winternet.com/~daveej.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1048cc,9c7dd11f25abc642,start X-Google-Attributes: gid1048cc,public From: Bob <pmw5@CORNELL.EDU> Subject: Re: SKYWARN Digest - 1 May 1998 to 2 May 1998 Date: 1998/05/03 Message-ID: <354CC5E7.124BA621@cornell.edu> X-Deja-AN: 349902997 Sender: The SKYWARN list <SKYWARN@POSTOFFICE.CSO.UIUC.EDU> Content-Transfer-Encoding: 7bit References: <199805030510.AAA21706@postoffice.cso.uiuc.edu> <354C8DDD.439D@gte.net> Comments: To: kd4uyr@gte.net Content-Type: text/plain; charset=us-ascii MIME-Version: 1.0 Reply-To: Bob <pmw5@CORNELL.EDU> Newsgroups: bit.listserv.skywarn