IEM Daily Bulletin

[Iowa Mesonet]

Iowa Environmental Mesonet Daily Bulletin
Data valid for 07 April 2008

> News
 +----------------------------------------------
 | Title : March AWOS data uploaded
 | Date  : 08 Apr 12:40 AM
 | Author: Daryl Herzmann
 | URL   : http://mesonet.agron.iastate.edu/AWOS/reports/2008precip.phtml
 +----------------------------------------------

The 1 minute interval Iowa AWOS data for March has been 
uploaded to the IEM data coffers.  Enjoy.

> Yesterday's Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2008-04-07
 | Title : Smooth curves
 | Date  : 07 Apr 07:09 AM
 | Votes : Good: 19   Bad: 6
 +----------------------------------------------

What a nice weekend! The featured image is from Saturday showing solar radiation, 4 inch soil temps, and air temperature from the Ames ISUAG site.  The three curves are smooth since we had clear skies and no surface front passage.  The three variables plotted tend to vary as a sinusoidal function that correlates with the incidence angle of the sun.  The plot also nicely illustrates the difference in warming and cooling rates of the soil versus air.

> NWS Watch/Warning Summary
*** Products issued on 07 Apr 2008

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       3    0 |   0     0     0     0     0 |   1
Svr Tstorm   32    0 |   0     0     0     0     0 |   1
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