Dr. Jeff Masters' WunderBlog

Spring flooding hits Midwest; Southeast drought eases
Posted by: Dr. Jeff Masters, 7:04 PM GMT on March 20, 2008 +2
This year's annual spring flooding season is upon us, and it's been a worse flood year than usual across much of the Midwestern U.S. At least 13 people have been killed due to the flooding this week, with another three persons missing. A slow moving storm system brought rains in excess of ten inches to the region (Figure 1). These rains, combined with melting from unusually heavy snows this winter, have led to the floods.


Figure 1. Heavy rains exceeding 10 inches have fallen in some portions of the Midwest over the past week. Image credit: NOAA.

According to NOAA, 224 cities are experiencing flooding today, with major flooding reported in 13 cities in Missouri, Arkansas, Oklahoma, Texas, Indiana, Ohio, Kentucky, and Illinois. As snow continues to melt and runoff from the recent rains continues to increase the flooding, an additional 13 cities are expected to observe major flooding in the next 48 hours. Fortunately, no heavy rain is expected in the next three days, so a long duration flooding event is not likely.


Figure 2. The NOAA flood outlook calls for significant river flooding across much of the Midwest through Monday. Image credit: NOAA.

Flooding outlook for this Spring
According to NOAA, Above-normal flood potential is expected this Spring in much of the Mississippi River basin, the Ohio River basin, the lower Missouri River basin, Pennsylvania, New Jersey, most of New York, all of New England, and portions of the West, including Colorado and Idaho. Snow depths up to a foot above usual in upstate New York and much of New England could cause flooding in the Connecticut River Valley; locations in the mountains of Colorado and Idaho have 150 to 200 percent of average water contained in the snow pack, leading to a higher than normal flood potential there; and Wisconsin and northern Illinois have had heavy snows this winter that could cause continued flooding concerns this Spring.

Southeast drought continues to improve
On the plus side, the area of the Southeast U.S. covered by the severest form of drought--exceptional drought--has shrunk to a small spot over southern Tennessee/northern Alabama, and Georgia is free of exceptional drought for the first time since July. The drought is expected to continue to improve between now and June over the Southeast U.S.

Jeff Masters
Batesville's west side is flooded. (pb4ugo)
Hundreds of residents ere evacuated earlier today. As the water continues to rise, hundreds more may have to leave their homes.
Batesville's west side is flooded.
Flooding Strikes NE Arkansas & SE Missouri (ArkaTechHog77)
Severe flooding hits the area. My stepfather took a friend up and snapped these shots. Photos taken around HWY 53 area around Qulin and Poplar Bluff. Others taken in Clay County, Arkansas.
Flooding Strikes NE Arkansas & SE Missouri
Kroger 3 (Hawg8)
Local flooding
Kroger 3
Categories: Flood
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451. weathermanwannabe 5:21 PM GMT on March 25, 2008    
448. GainesvilleGator 12:27 PM EDT on March 25, 2008
Not only have the early hurricane forcasts been a bust but the ones on June 1st as well. The last two hurricane seasons were supposed to be really, really bad and all we got is drizzle & fizzle.


Need to be careful about that as it may have been "drizzle & fizzle" for the CONUS but a lot of lives were lost in the Carribean and the Yucatan when Dean plowed accross.....The Season affects the entire Tropics and not just the U.S.........
Member Since: August 8, 2006 Posts: 0 Comments: 6703
452. BahaHurican 5:25 PM GMT on March 25, 2008    
Good point, Kris. I think sometimes people forget that "active" is defined by number of storms that actually form, not by number of landfalls. I'm thinking about the seasons where we've had 15 or 16 storms, many of them majors, but only one or two landfalls in the US. 2003 was a case in point, with 16 named storms but only two hurricanes striking the US, neither as a major. Even in the whole basin there were only 4 hurricane landfalls.
Member Since: October 25, 2005 Posts: 19 Comments: 17673
453. weatherbro 5:47 PM GMT on March 25, 2008    
if that sleeping giant Dr M mentioned took advantage of it's opportunity, it would of easily be another category 5!
Member Since: May 26, 2007 Posts: 47 Comments: 1155
454. AWeatherLover 6:32 PM GMT on March 25, 2008    
Anyone have any information on strength of la niña and cyclogenesis? I have only seen research on number of hurricanes that formed in string la niña years versus strong el niño years, but never strong la niña years versus moderate la niña years and that would be very interesting to me. I know you've been busy Adrian but whenever you get a chance that would be great. Or anyone else who could help with this.
Member Since: November 2, 2007 Posts: 0 Comments: 431
455. weatherboykris 6:37 PM GMT on March 25, 2008    
Strong La Nina years tend to have less hurricanes than moderate La Nina years. It appears that this La Nina will be over by hurricane season anyway, and we will be in neutral conditions.
Member Since: December 9, 2006 Posts: 125 Comments: 11343
456. TerraNova 7:28 PM GMT on March 25, 2008    
Antarctica - A chunk of ice nearly seven times the size of Manhattan Island has collapsed into the ocean. Article from CNN:

Link
Member Since: July 30, 2007 Posts: 76 Comments: 4058
457. Patrap 7:34 PM GMT on March 25, 2008    
Someone check da thermostat please..


Antarctic ice shelf 'hanging by a thread'

Movie Camera

* 18:08 25 March 2008
* NewScientist.com news service
* Catherine Brahi Link
Member Since: July 3, 2005 Posts: 372 Comments: 111610
458. Patrap 8:10 PM GMT on March 25, 2008    
New Mississippi delta would limit hurricane damage

* 13:20 18 February 2008
* NewScientist.com news service
* Phil McKenna
Story: Link

Diverting parts of the Mississippi would create up to 1000 square kilometres of new wetlands between New Orleans, Louisiana and the Gulf of Mexico, forming a vital storm surge buffer against hurricanes, researchers say. The formation of new delta lands could also help stem ongoing coastal erosion without disrupting important shipping traffic.

"The scientific and engineering barriers are easily overcome," says Gary Parker, a geologist and engineer at the University of Illinois in Urbana-Champaign, who developed the plan with colleagues. "The big issue is political will".

Details of the scheme were unveiled on Sunday at the annual meeting of the American Association for the Advancement of Science in Boston, US.





Member Since: July 3, 2005 Posts: 372 Comments: 111610
461. sullivanweather 9:14 PM GMT on March 25, 2008    
MODIS rapid response satellite pic of partial Wilkins ice shelf collapse.



This is the 4km resolution image showing where the collapse is.

Here's the 250m resolution image **Very large file 3.92MB
Member Since: March 8, 2007 Posts: 269 Comments: 12491
462. ajcamsmom2 9:38 PM GMT on March 25, 2008    
459. leftovers 3:35 PM CDT on March 25, 2008
Nuetral yr means what? Fearful this yr for some reason


I am always fearful since Katrina/Rita
Member Since: March 15, 2008 Posts: 4 Comments: 2482
463. StormHype 9:45 PM GMT on March 25, 2008    
The system, called America's Emergency Network, is being built to give the media, local residents and others direct access to information released by state and local emergency operations centers.


Inotherwords, Mayfield-Norcross basically found a way to just fix a broken govt run system. We pay taxes to the govt to provide this very thing, but they fail, so private entreprenuers come in and fix it, and capitalize off it.
Mayfield-Norcross: winners.
FEMA, NWS, NHC: losers (but collecting a govt paycheck and pension so don't care.)
Member Since: May 31, 2007 Posts: 0 Comments: 1163
464. Smyrick145 9:54 PM GMT on March 25, 2008    
I wonder if we will ever hear from StormKat again???
Member Since: September 30, 2006 Posts: 0 Comments: 14

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About JeffMasters
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.

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