IEM Daily Bulletin

[Iowa Mesonet]

Iowa Environmental Mesonet Daily Bulletin
Data valid for 31 October 2007

> News
 +----------------------------------------------
 | Title : New WeatherNet: Sibley
 | Date  : 01 Nov 09:34 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/schoolnet/current.phtml?ntv=KELO
 +----------------------------------------------

A new weathernet station has been added to the KELO-TV network.
This site is in Sibley Iowa and has a NWS ID of SSBI4.


 +----------------------------------------------
 | Title : NEXRAD composites info
 | Date  : 31 Oct 08:39 PM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/docs/nexrad_composites/
 +----------------------------------------------

After 4 years of generating the product, it was about time to place
some documentation about the product on the website.  If I failed
to be verbose enough, please let me know.

Also, I'm switching to winter based composites soon.  This will 
remove the requirement for the radar to be in "precipitation" 
mode and remove the summertime clutter filtering.

> Yesterday's Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2007-10-31
 | Title : 70s not uncommon
 | Date  : 31 Oct 07:21 AM
 | Votes : Good: 17   Bad: 3
 +----------------------------------------------

The featured graph plots out <a href="http://mesonet.agron.iastate.edu//plotting/coop/spread_fe.phtml">frequencies</a> of high and low temperature observations for 30 October from the Iowa COOP data archive. The chart shows that having highs in the 70s are right around the 75th percentile (roughly once every four years).  In general, the high temperature curve is flatter than the low temperature curve.  This indicates how our variable our afternoons can be as we are dominated by warm or cold air transport into Iowa.  Today a cold front is sweeping the really warm air out of the state with afternoon highs much cooler than yesterday.

> NWS Watch/Warning Summary
*** Products issued on 31 Oct 2007

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       0    0 |   0     0     0     0     0 |   0
Svr Tstorm    0    0 |   0     0     0     0     0 |   0
Fl Flood      0    0 |   0     0     0     0     0 | N/A

ARX = LaCrosse, WI  DVN = Davenport, IA    DMX = Des Moines, IA 
OAX = Omaha, NE     FSD = Sioux Falls, SD