IEM Daily Bulletin

[Iowa Mesonet]

Iowa Environmental Mesonet Daily Bulletin
Data valid for 15 April 2008

> News
    No news is good news

> Yesterday's Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2008-04-15
 | Title : Wind in April
 | Date  : 15 Apr 07:16 AM
 | Votes : Good: 30   Bad: 4
 +----------------------------------------------

The NWS has issued a wind advisory today for forecasted southerly winds around 30 mph.  The featured chart displays directional frequency of reported 30+ mph wind speeds during April from the Des Moines Airport.  Southerly winds are not the most favored for high winds, since warming is generally occuring which leads to upward motion near the surface acting to keep the strongest winds aloft from reaching the surface.  The situation is reverse with northwest winds, since there is often cooling and decending motion which acts to bring stronger winds to the surface and keep them there.

> NWS Watch/Warning Summary
*** Products issued on 15 Apr 2008

             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