IEM Daily Bulletin

[Iowa Mesonet]

Iowa Environmental Mesonet Daily Bulletin
Data valid for 20 December 2007

> News
    No news is good news

> Yesterday's Daily Feature

 +----------------------------------------------
http://mesonet.agron.iastate.edu/onsite/features/cat.php?day=2007-12-20
 | Title : Careful of the Fog
 | Date  : 20 Dec 07:17 AM
 | Votes : Good: 13   Bad: 4
 +----------------------------------------------

Dense fog has developed most every day this week as warmer air from the south keeps encountering all of this cold ice and snowpack covering Iowa.  On Wednesday, the webcams caught some neat lapses of the fog lifting and then settling in again.  The <a href="http://www.youtube.com/watch?v=f4Xn2_wbx9o">Nevada webcam lapse</a> is from 150 feet above the ground, so it was above the shallow layer of fog that crept along Wednesday morning.  The <a href="http://www.youtube.com/watch?v=m8QELgPE7OA">Newton webcam lapse</a>  shows thick forming, lifting, settling back in, and then lifting once more.  We will see more dense fog today in some locations.

> NWS Watch/Warning Summary
*** Products issued on 20 Dec 2007

             Summary +_________ By WFO ____________+  Watches 
Type         US   IA | ARX   DVN   DMX   OAX   FSD |  US 
Tornado       3    0 |   0     0     0     0     0 |   3
Svr Tstorm   38    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