ConvectiveOutlook.com

 Severe Weather Archive

 

 

 







High-Risk Days From 2000-2003:

This page contains all the days on which a high risk of severe thunderstorms has been forecast from January 01, 2000 up through 2003. The next page contains all high risk days from 2004 up to the present day. I am still adding additional events.

To the best of my knowledge there are no dates missing in this time set. 

Beau Dodson
 
 
April 06, 2001: A classic southern plains (Tornado Alley) spring tornado outbreak was forecast, a squall line producing a derecho (a widespread thunderstorm high wind event) developed instead over parts of Kansas and Oklahoma. Because of the lack of tornadoes, this day was frustrating to chasers even though it was not technically a bust because widespread severe weather did occur.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC Day 1 Outlook (1:00 AM CDT)

Public Severe Weather Outlook #1 (5:00 AM CDT)

1300 UTC Day 1 Outlook (8:00 AM CDT)

1630 UTC Day 1 Outlook (11:30 AM CDT)

Public Severe Weather Outlook #2 (12:00 PM CDT)

2000 UTC Day 1 Outlook (3:00 PM CDT)


Storm Reports

Weather Maps From NCEP
April 05-07 - Weather Maps


Radar Images
NCDC Radar Images  April 06-07


More Products From SPC

 SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Total Area Center: MO
     SFC  RAD  SAT
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
Shane Adams

Jim Bishop and Simon Brewer

Scott Blair

Dorian Burnette

Bob Conzemius

David Drummond

Charles Edwards

"INCHASE" Indiana Storm Chasers

Justyn Jackson (Note-all the links to SPC watches and discussions are outdated)

Aaron Kennedy - Missing

Jeff Lawson

Don Lloyd

"Louisiana Delta Chasers"

Eric Nguyen

Chris Nuttall

Jason Politte-Page 1 Page 2

Robert Satkus

Dean Schoeneck

Matt Sellers


Jason Sippel - Missing

Jeff Wear
Historical Weather Maps

(Viewing the Daily weather maps requires the free Djvu Browser Plug-In)
     
 
April 11, 2001: Outbreak of mostly small, but fast-moving tornadoes in Iowa. Northern Illinois and southern Wisconsin were included in the high risk zone at one point, but I was not aware of it because I did not know about the SPC's online convective outlooks until 2002. Good thing, too, because the Wisconsin and Illinois parts of the high risk busted, with only isolated reports of high winds.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
1300 UTC Day 1 Outlook (8:00 AM CDT)

1630 UTC Day 1 Outlook (11:30 AM CDT)

2000 UTC Day 1 Outlook (3:00 PM CDT)


Storm Reports

Weather Maps From NCEP
April  10-12 - Weather Maps


Radar Images
NCDC Radar Images  April 11-12


More Products From SPC

 SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Total Area Center: IA
     SFC  RAD  SAT
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
Chris Gullikson

Mike Hollingshead - Missing

"INCHASE" Indiana Storm Chasers-Page 1 Page 2

Don Lloyd

Stan Olson

Jeff Snyder

Scott Weberpal
Historical Weather Maps

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)

La Crosse, WI NWS Summary

Warning process during the outbreak-AMS Conference paper
 
 
June 11, 2001: Derecho over parts of Minnesota and Wisconsin. The second time my location was in a high risk this year, the second time I was oblivious to it, and the second time I saw nothing more than an ordinary thunderstorm. A high risk, while certainly a serious weather situation that warrants close attention, is far from a guarantee that you will be hit by severe weather!
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC Day 1 Outlook (1:00 AM CDT)

2000 UTC Day 1 Outlook (3:00 PM CDT) Missing

0100 UTC Day 1 Outlook (8:00 PM CDT)


Storm Reports

Weather Maps From NCEP
June 10-12 - Weather Maps


Radar Images
NCDC Radar Images  June 11-12

More Products From SPC

SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Total Area Center: MI
     SFC  RAD  SAT
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
Charles Edwards

Rory Groves

Don Lloyd - Missing

Jeff Snyder
Historic Weather Maps

Second Set

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)

Wikipedia Article

Green Bay, WI NWS Summary

AMS Conference paper-derecho-induced storm surge

CIMSS Case Study

University Of Wisconsin Study - PDF

Alex Lamers' essay

 
 
October 13, 2001: Not much known about this day. The outlook was upgraded from MDT to HIGH at 2000Z, then downgraded to SLGT at 0100Z. A spatially very concentrated tornado outbreak occurred in the immediate Gulf Coastal region of Florida and Alabama.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
2000 UTC Day 1 Outlook (3:00 PM CDT)

Storm Reports

Weather Maps From NCEP
October 12-14  - Weather Maps

Radar Images
NCDC Radar Images  October 13-14


More Products From SPC

 SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Area Center: MS
     SFC  RAD  SAT
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
AMS Conference paper - Missing

Historic Weather Maps

Second Set

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)
 
October 24, 2001: 2001 was the first of two years in a row with a potent fall storm system producing an extensive combination tornado outbreak/derecho from the Ohio Valley to the Southeast.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC Day 1 Outlook (1:00 AM CDT)

Public Severe Weather Outlook #1 (4:30 AM CDT)

1300 UTC Day 1 Outlook (8:00 AM CDT)

1630 UTC Day 1 Outlook (11:30 AM CDT)

Public Severe Weather Outlook #2 (11:30 AM CDT)

2000 UTC Day 1 Outlook (3:00 PM CDT)

0100 UTC Day 1 Outlook (8:00 PM CDT)


Storm Reports

Weather Maps From NCEP
October 23-25  - Weather Maps


Radar Images
NCDC Radar Images  October  24-25


More Products From SPC

SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Area Center: KY
     SFC  RAD  SAT
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
Shane Adams

John Farley

Stan Olson

Dan Robinson

Richard Thies
Historic Weather Maps

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)

Lincoln, IL NWS Summary

Nashville, TN NWS Summary

Paducah, KY NWS Summary

St. Louis, MO NWS Summary

Syracuse, IN NWS Summary

Wilmington, OH NWS Summary

Midwestern Regional Climate Center Case Study

AMS Conference paper

Video

Wikipedia Article
 
 
April 16, 2002: Bust. Major derecho was forecast to develop in the northern Plains and track into the upper Mississippi Valley. It never happened as only a few isolated severe storms developed. There were actually more severe storms in the southern Plains (where most of the people listed below chased) in the SLGT risk area than there were in the HIGH risk.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC Day 1 Outlook (1:00 AM CDT)

Public Severe Weather Outlook #1 (5:15 AM CDT)

1300 UTC Day 1 Outlook (8:00 AM CDT)

1630 UTC Day 1 Outlook (11:30 AM CDT)

Public Severe Weather Outlook #2 (1:00 PM CDT)

2000 UTC Day 1 Outlook (3:00 PM CDT)


Storm Reports

Weather Maps From NCEP
April 15-17 - Weather Maps


Radar Images
NCDC Radar Images  April 16-17


More Products From SPC

SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Area 1 Center: OK
     SFC  RAD  SAT
 Area 2 Center: NE
     SFC  RAD
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches
Shane Adams

Jim Bishop and Simon Brewer

Dorian Burnette

Bob Conzemius

Charles Edwards

Jon Garner

Mike Hollingshead

Damon Hynes

"Minnesota Storm Intercept Association"

Putnam Reiter

Chad Ringley - Missing

Robert Satkus - Missing

Jeff Snyder
Historic Weather Maps

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)
 
 
July 31, 2002: Another forecasted upper Mississippi Valley derecho event busts. Only isolated severe wind and hail occurred.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC Day 1 Outlook (1:00 AM CDT)

Public Severe Weather Outlook (6:39 AM CDT)

1300 UTC Day 1 Outlook (8:00 AM CDT)


Storm Reports

Weather Maps From NCEP
July 30-August 01 - Weather Maps


Radar Images
NCDC Radar Images  July 31


More Products From SPC
 Storm Reports
     SPC Preliminary
 Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center MKE-
     SFC  RAD  SAT
     Area 1: Center ABY-:
     SFC  RAD
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
Jim Bishop and Simon Brewer -No write-up, just a photo.

Jeff Snyder
Historic Weather Maps

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)
 
 
November 10, 2002: For the second year in a row a powerful fall storm system triggers a major tornado outbreak/derecho event in the Ohio Valley and southeastern states. Included the infamous Van Wert, Ohio (F4)and Mossy Grove, Tennessee (F3) tornadoes.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
0600 UTC  Day 1 Outlook (12:00 AM CST)

Public Severe Weather Outlook #1 (4:00 AM CST)

1300 UTC Day 1 Outlook (7:00 AM CST)

1630 UTC Day 1 Outlook (10:30 AM CST)

Public Severe Weather Outlook #2 (1:10 PM CST)

2000 UTC Day 1 Outlook (2:00 PM CST)

0100 UTC Day 1 Outlook (7:00 PM CST


Storm Reports

Weather Maps From NCEP
November 09-11 - Weather Maps


Radar Images
NCDC Radar Images  November 10-11


More Products From SPC

SPC Storm Reports
Composites:
     Surface & Upper Air
      Parameters
Surface Analyses:
     HPC Synoptic Scale
Upper Air Analyses:
     925mb: 12Z  00Z
     850mb: 12Z  00Z
     700mb: 12Z  00Z
     500mb: 12Z  00Z
     300mb: 12Z  00Z
     250mb: 12Z  00Z
     Skew-T/Log-P Plots
Image Loops:
Total Area Center: TN
     SFC  RAD  SAT
 Area 1 Center: OH
     SFC  RAD
 Area 2 Center: TN
     SFC  RAD
 Area 3 Center: MS
     SFC  RAD
SPC Products:
     Day 1 Outlooks:
       0600Z   1300Z
       1630Z   2000Z
       0100Z
     Mesoscale Disc.
     Watches


Additional Maps:
1 2 3 4 5
Ben Cotton

Colin Davis

Justyn Jackson  Mirror Page

Amos Magliocco

Dan Robinson
Historic Weather Maps

Second Set

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)

Birmingham, AL NWS Summary

Greenville/Spartanburg, SC NWS Summary (Adobe PDF)

Jackson, MS NWS Summary

Louisville, KY NWS Summary

Nashville, TN NWS Summary

Paducah, KY NWS Summary

Syracuse, IN NWS Summary

Wilmington, OH NWS Summary

"'Bama Weather" Reports & Surveys

Additional documentation of this event from a Great Lakes and Toledo, Ohio website

Van Wert, Ohio Tornado Video

Van Wert, Ohio Tornado Video

Van Wert, Ohio Tornado Video

Van Wert, Ohio Tornado Video

Logan Ohio Tornado Warning Video

Storm Stories

Wikipedia Article
 
 
December 23, 2002: Localized tornado outbreak in southeast Texas. No fatalities.
     
Archived NSSFC Products Storm Chaser Accounts Other Links

0600 UTC Day 1 Outlook (12:00 AM CST)

Public Severe Weather Outlook #1 (4:05 AM CST)

1300 UTC Day 1 Outlook (7:00 AM CST)

1630 UTC Day 1 Outlook (10:30 AM CST)

Public Severe Weather Outlook #2 (11:00 AM CST)

2000 UTC Day 1 Outlook (2:00 PM CST)

0100 UTC Day 1 Outlook (7:00 PM CST

Storm Reports

Weather Maps From NCEP
December 22-24 - Weather Maps

Radar Images
NCDC Radar Images  December 23-24


More Products From SPC
 Storm Reports
     SPC Preliminary
Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center LCH-
     SFC  RAD  SAT
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
  Historic Weather Maps

Second Set

(Viewing the Daily weather maps requires the free
Djvu Browser Plug-In
)

Houston/Galveston, TX NWS Summary (Adobe PDF, scroll down to "December" entry and to the later "Severe Weather Events" entry)
 
 
April 06, 2003: Localized tornado outbreak from Mississippi westward to east Texas.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030406_010
(April 5th 7 PM)

2003/day1otlk_20030406_1200


2003/day1otlk_20030406_1300

2003/day1otlk_20030406_1630

2003/day1otlk_20030406_2000

Storm Reports

Day 2 Convective Outlooks: 2003/day2otlk_20030406_0800

2003/day2otlk_20030406_1730


Weather Maps From NCEP
April 05-07 - Weather Maps


Radar Images
NCDC Radar Images  April 06-07


More Products From SPC
Storm Reports
     SPC Preliminary
 Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center MEI-
     SFC  RAD  SAT
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
David Drummond

Jon Garner

Justyn Jackson

"Louisiana Delta Chasers"

Robert Satkus

Brian Thalken

Ben Vassmer

Kevin Walter
Historic Weather Maps

Jackson, MS NWS Summary

Shreveport, LA NWS Summary
 
 
May 04, 2003: Major tornado outbreak centered on eastern Kansas and western Missouri. Produced several infamous killer tornadoes, including Girard, Kansas, Pierce City/Battlefield, Missouri, and Kansas City, Kansas/Missouri. Many of these tornadoes approached a mile wide and were rated F3 or F4.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030504_0100
(May 3rd 7 PM)

2003/day1otlk_20030504_1200

2003/day1otlk_20030504_1300

2003/day1otlk_20030504_1630

2003/day1otlk_20030504_2000

Storm Reports

Day 2 Convective Outlooks: 2003/day2otlk_20030504_0800

2003/day2otlk_20030504_1730

Weather Maps From NCEP
May 03-05 - Weather Maps

Radar Images
NCDC Radar Images  May 04-05


More Products From SPC
Storm Reports
     SPC Preliminary
 Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center STL-
     SFC  RAD  SAT
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
Shane Adams

Charles Allison

Jim Bishop and Simon Brewer

Dorian Burnette

Bob Conzemius

Bill Doms

David Drummond

Charles Edwards

John Farley

Gabe Garfield

Jon Garner

Shawn Hewitt

Roger Hill - Missing

Mike Hollingshead

Bernard Hulshof

Damon Hynes

Scott Kampas

Aaron Kennedy - Missing

Douglas Kiesling

Dave Lewison


Don Lloyd

Amos Magliocco

Steve Miller - Missing

Chris Nuttall and Kyle Mozley - Missing

Michael Peregrine - Missing

Jason Politte Page 1 Page 2

Andrew Revering

Karen & Gene Rhoden

Chad Ringley - Missing

Chris Sanner

Robert Satkus

Dean Schoeneck

"Silver Lining Chase Tours"/David Gold

Jeff Snyder

Mike Umscheid

Ben Vassmer

Jeff Wear

Peggy Willenberg and Melanie Metz
Historic Weather Maps

Kansas City, MO NWS Summary

Little Rock, AR NWS Summary

Memphis, TN NWS Summary

Paducah, KY NWS Summary

Springfield, MO NWS Summary Missing

Wichita, KS NWS Summary

NOAA article

Girard, Kansas Tornado Video

Tornado Video

Kansas City Tornado Video

Kansas City Tornado Video

Girard, Kansas Tornado Video

Kids Playing While Tornado Approaches Kansas City

KMBC 9 Tornado Damage Video

Battlefield, Missouri Tornado Video

Parkville, Missouri Tornado Video

Wikipedia Article
 
 
May 05, 2003: Relatively small (by comparison to the other outbreaks this incredible week) outbreak of tornadoes and severe thunderstorms in the southeastern states.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030505_0100
(May 4th 7 PM)

2003/day1otlk_20030505_1200

2003/day1otlk_20030505_1300

2003/day1otlk_20030505_1630

2003/day1otlk_20030505_2000

Storm Reports

Day 2 Convective Outlooks:
2003/day2otlk_20030505_0800

2003/day2otlk_20030505_1730

Weather Maps From NCEP
May 04-06 - Weather Maps


Radar Images
NCDC Radar Images  May 05-06

More Products From SPC
Storm Reports
     SPC Preliminary
 Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center BNA-
     SFC  RAD  SAT
     Area 1: Center TN:
     SFC  RAD
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
Nick Grillo (removed broken link)

Mike Hollingshead-Did not chase high risk, but got a neat "catch" anyway!

Dan Robinson-Missing - Says MDT risk day but was upgraded to HIGH at 1630 UTC (11:30 AM CDT)
Historic Weather Maps

Nashville, TN NWS Summary

Wikipedia Article
 
 
May 08, 2003: Outbreak of fast-moving tornadoes in eastern Kansas, plus the infamous "Moore, Oklahoma Violent Tornado Mark II", an F4 which followed a very similar path to the F5 of May 03, 1999. It caused major damage but luckily no fatalities.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030508_0100
(May 7th 7 PM)

2003/day1otlk_20030508_1200


2003/day1otlk_20030508_1300

2003/day1otlk_20030508_1630
 
2003/day1otlk_20030508_2000

Storm Reports

Day 2 Convective Outlooks: 2003/day2otlk_20030508_0800

2003/day2otlk_20030508_1730

Weather Maps From NCEP
May 08-09 - Weather Maps

Radar Images
NCDC Radar Images  May 08-09


More Products From SPC
Storm Reports
     SPC Preliminary
 Composites
 Surface Analyses
 Upper Air
     925mb: 12Z 00Z
     850mb: 12Z 00Z
     700mb: 12Z 00Z
     500mb: 12Z 00Z
     300mb: 12Z 00Z
     250mb: 12Z 00Z
     Skew-T/Log-P Plots
 Image Loops
     Total Area:
       Center TN-
     SFC  RAD  SAT
     Area 1: Center ARG-:
     SFC  RAD
     Area 2: Center OK:
     SFC  RAD
     Area 3: Center IAD:
     SFC  RAD
 SPC Products
     Day 1 Outlooks
       0600Z
       1300Z
       1630Z
       2000Z
       0100Z
     Mesoscale Disc.
     Watches
Simon Brewer

Dorian Burnette

Bob Conzemius

Dave Crowley - Missing

David Drummond

Charles Edwards

Jon Garner

Bernard Hulshof

Justyn Jackson - Missing

Douglas Kiesling

Dave Lewison

Don Lloyd - Missing

Amos Magliocco

Kevin McGrath

Melissa Moon - Missing

Eric Nguyen

Ben Prusia - Missing

Putnam Reiter - Missing

Karen & Gene Rhoden

Chad Ringley - Missing

Dan Robinson

Robert Satkus

Paul Schlatter

Dean Schoeneck

Jeff Snyder

Brian Thalken

Ben Vassmer - Missing

Jeff Wear
Historic Weather Maps

Louisville, KY NWS Summary

Norman, OK NWS Summary

Topeka, KS NWS Summary

Wichita, KS NWS Summary - Missing

Wikipedia Article
 
 
May 10, 2003: The Quad Cities area where Iowa, Illinois and Missouri intersect was hit hardest today in this outbreak when severe storms lined up along both major river valleys in the Midwest-the Mississippi Valley and the Ohio Valley. Amazingly no one was killed on a day that produced almost as big an outbreak as the 4th. At the end of the day the high risk extended to just south of the WI/IL border, but a couple of the supercells tracked into Wisconsin and spawned two tornadoes, one in Iowa County and one in Lafayette County. Both damaged some trees and outbuildings and were rated F1. One of them caused one injury. This was the end of this incredible week of endless tornado outbreaks (large outbreaks occurred on the other days even though they were not high risk days).
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030510_0100
(May 9th 7 PM)

2003/day1otlk_20030510_1200

2003/day1otlk_20030510_1300

2003/day1otlk_20030510_1630

2003/day1otlk_20030510_2000

Storm Reports

Day 2 Convective Outlooks:
2003/day2otlk_20030510

2003/day2otlk_20030510 0800z

2003/day2otlk_20030510 1730z

Weather Maps From NCEP
May 09-11 - Weather Maps


Radar Images
NCDC Radar Images  May 10-11

More Products From SPC
Storm Reports
     SPC Preliminary
 Composites
 Surface Analyses
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May 15, 2003: The Texas Panhandle is one of the great "hot spots" of Tornado Alley. The phenomenon known as "Panhandle Magic" draws many storm chasers there each year. May 15, 2003 ended up producing the biggest tornado outbreak in the region's history. Several chasers intercepted an impressive dual-vortex supercell that maintained two large tornadoes on the ground at the same time near Stratford and Dalhart, Texas. Best of all, most of the tornadoes were out in open country and caused relatively little damage and no fatalities.
     
Archived NSSFC Products Storm Chaser Accounts Other Links
Day 1 Convective Outlooks: 2003/day1otlk_20030515_0100
(May 14th 7 PM)

2003/day1otlk_20030515_1200


2003/day1otlk_20030515_1300

2003/day1otlk_20030515_1630

2003/day1otlk_20030515_2000

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Day 2 Convective Outlooks: 2003/day2otlk_20030515_0800

2003/day2otlk_20030515_1730


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August 29, 2003: The European Storm Forecast Experiment is an outfit that issues its own SPC-style convective outlooks for Europe. While severe storms are not rare in Europe, big outbreaks happen more seldom than they do in the United States. ESTOFEX issued what I believe is the only high risk forecast in its history on this day, for portions of northeastern Italy and the western Balkan region. Andrea Griffa explains: "On 29th August in North Italy the conditions occurred for a tornado outbreak. We had a moderately unstable air-mass (1500-3000 J/kg) over a good part of the Po-Valley and strong low level shear with east-southeasterly surface winds and 850mb south-southwesterly winds. Convective forecasts showed helicity values of 500 m2/s2 and more than 60kt of deep-layer shear.

But the climate of Italy is very, very complicated: If a cold front impacts against the Alps mountains with a more northwesterly oriented position instead of a westerly oriented position, the low pressure develops in the extreme western part of northern Italy, and generates so much dry wind at surface that it destroys the rich in CAPE zone (adiabatic compressure). For this reason the other part of the Northern Italy outbreak didn't develop because the low pressure system was very strong but formed in the 'wrong' zone!!
Anyway parameters were incredible in Northern Italy that day, but the convection that developed was supercellular in only a limited part of northern Italy where a nice supercell produced a strong F2 tornado. A squall line behind the tornadic supercell produced hail and damaging winds."
     
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  Andrea Griffa's study (in Italian)
 
Please notify me of errors and or corrections that may be necessary.  If you have links that would have to the archive then please email me.  News story links, Wiki information, personal chase accounts, or other data that might be helpful to the weather community.
Beau Dodson
 
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