Tornado threat May 25-2008

(Updates of post are available below, through NOAA products, local newspapers and other sources. Parkersburg tornado now rated at low end of EF-5.)

(Personal note: I am a tornado survivor of some 41 plus years. I was interested in weather before that instance and after. My experience of that tornado is posted on my blog pages.)

Hail reported 3.50″ diameter north of Minneapolis

Several tornadoes are now reported 5-25-08,5:50pm,cdt, occurring over several states.

The tornado watch boxes extend from Texas to Northern Minnesota

Tornado warning now in Wisconsin, Northeast of Minneapolis.

Tornadoes in Illinois-getting close to Carbondale IL-hooking right down from the northwest toward Carbondale. Rotating wall cloud reported.

Many supercells today are rotating big time.

4.25″ hail reported in one storm.

Hugo Wisconsin-serious damage.

Tornado now in NE Arkansas

Blackhawk County storm damage. North of Cedar falls, damage reports coming in.

Large tornado reported at Waterloo airport.

UPDATE–MEMORIAL DAY: 44 tornadoes reported Sunday May 25

Tornado causes damage, injuries in Parkersburg DesMoinesRegister.com
Powerful storms kill 8 in Iowa and Minnesota Kansas City Star
Powerful Storms Kill 8 in Iowa and Minnesota ABC News
Quad City Times

Parkersburg tornado update:Parkersburg Tornado Day 2

Tornado at Parkersburg now rated a low EF5.

2nd confirmed EF5 since new Enhanced Fujita Scale went into effect last February. This one maxed out at approx 205 mph. Over 40 mile track, at one time 1.20 miles wide.


  • EF0 — Wind speeds ranging from 65 to 85 mph.
  • EF1 — Wind speeds ranging from 86 to 110 mph.
  • EF2 — Wind speeds ranging from 111 to 135 mph.
  • EF3 — Wind speeds ranging from 136 to 165 mph.
  • EF4 — Wind speeds ranging from 166 to 200 mph.
  • EF5 — Wind speeds of 201 mph or higher.

Enhanced Fujita Scale – Wikipedia, the free encyclopedia

National Weather Service

Watches, Warnings & Advisories

Tornado Warning


TORNADO WARNING
IAC157-260415-
/O.NEW.KDMX.TO.W.0022.080526T0352Z-080526T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1052 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN POWESHIEK COUNTY IN CENTRAL IOWA...

* UNTIL 1115 PM CDT.

* AT 1048 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MALCOM...OR
  26 MILES SOUTHWEST OF MARENGO...MOVING EAST AT 66 MPH.

* THE TORNADO WILL BE NEAR...
  GUERNSEY...BROOKLYN AND DEEP RIVER BY 1055 PM CDT...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA. GO TO A BASEMENT OR SMALL INTERIOR
ROOM ON THE LOWEST FLOOR!

THIS IS A HAZARDOUS SITUATION. SEEK SHELTER IN A BASEMENT...OR IN AN
INTERIOR ROOM. STAY AWAY FROM WINDOWS. IF YOU ARE OUTSIDE OR IN A
CAR...SEEK SHELTER IN A REINFORCED BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
IOWA.
NWS Homepage

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Storm Prediction Center

NOAA Photo Library Image - nssl0001

Aggregate hailstone. Large hailstone with smaller stones visible. Ruler shows radius of this remarkable hail stone. Diameter is approximately 6 centimeters – the size of a baseball.

Image ID: nssl0001, NOAA’s National Severe Storms Laboratory (NSSL) Collection
Credit: NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)