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Service
Assessments
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NWS conducts Service Assessments to evaluate its performance
during catastrophic weather events. Assessments are done when one or
more of the following criteria are met:
- Major economic impact on a large area or population
- Multiple fatalities or numerous serious injuries
- Unusually high level of public or media interest
Assessment teams, composed of experts in and outside NWS, study what happened and NWS actions before, during, and after the event. Finally, the team recommend changes in NWS procedures, products and services to improve performance.
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Mother’s Day Weekend Tornado in Oklahoma and Missouri, May 10, 2008. Survivors of Picher, OK, tornado. Photo courtesy of Tulsa World News. |
- Mother’s Day Weekend Tornado in Oklahoma and Missouri, May 10, 2008
- Super Tuesday Tornadoes: February 5-6, 2008
- Pacific Northwest Storms of December 1-3,
2007
- Tornadoes in Southern Alabama and
Georgia, March 1, 2007
- Rogers,
MN, Tornado Assessment, September 16, 2006
- Hurricane Katrina, August 23-31, 2005
- West Coast Tsunami Warning:
June 14, 2005
2000-2004
- Hurricane Charley, August 9-15, 2004
- Baltimore Inner Harbor Thunderstorm Event: March 6, 2004
- Intense Space Weather Storms,
October 19 – November 07, 2003
- Hurricane Isabel:
September 18-19, 2003
- Southern California
Wildfires: October 20 to November 3, 2003
- Record
Tornado Outbreaks of May 4-10, 2003
- Super
Typhoon Pongsona: December 8, 2002
- Veterans
Day Weekend Tornado Outbreak
- La
Plata, MD, Tornado Outbreak: April
28, 2002
- Tropical
Storm Allison: Heavy Rains and Floods, Texas and
Louisiana: June 2001
- Northern
Idaho and Western Montana Summer 2000 Wildfires
1995-1999
- Hurricane
Floyd Floods of September 1999
- Oklahoma/Southern
Kansas Tornado Outbreak of May 3, 1999
- South
Texas Floods: October 17-22, 1998 (html)
- Spencer, SD, Tornado:
May 30, 1998 (html)
- Southeast
Tornadoes: April 8, 1998
- The
Ice Storm and Flood of January 1998
- Central
Florida Tornado Outbreak: February 22-23, 1998
- Super
Typhoon Paka: December 2-21, 1997 (html)
-
Central Texas Tornado Outbreak: May 27, 1997
- North
Central U.S. Flooding including the Red River of
the North Basin: April 1997
- Ohio
River Valley Flood: March 1997
- Arkansas Tornado Outbreak:
March 1, 1997,
- Hurricane
Fran: August 28-September 8, 1996
- Hurricane
Bertha: July 5-14, 1996
- Ft. Smith
and Van Buren: Arkansas, Tornado of April 21, 1996
- Northeast
United States Flooding: January 1996
- Blizzard
of '96: January 6-8, 1996
- Hurricane
Marilyn: September 15-16, 1995
- Heat
Wave of July 1995
1989-1994
 Most
Assessments are PDFs. Download free PDF Reader.
Service Assessments are part
of the NWS Verification Program.
The NWS Office of the Administrator decides whether to perform an assessment. A report is released
when the Assistant
Administrator for Weather Services has approved it.
If an event does not warrant a
service assessment, but a need
exists to document the event's
data, NWS staff may issue a
Post-Storm
Data Acquisition
report. Single hard copies of older Service Assessments reports may be
available, email:
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| Last Updated:
November 6, 2009
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www.nws.noaa.gov 
