Alert archive / Missouri / Severe Thunderstorm Watches in 2009

Severe Thunderstorm Watch 32

February 26, 200910 counties in Illinois; 57 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Feb 26, 2009, 5:19 PM CST for 10 counties in Illinois; 57 counties in Missouri. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Feb 26, 2009, 5:19 PM CST (23:19 UTC)
Expired
Feb 27, 2009, 12:00 AM CST
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
60 kt
All 67 counties

Adams County, IL, Brown County, IL, Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Pike County, IL, Saint Clair County, IL, Audrain County, MO, Barry County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Iron County, MO, Jasper County, MO, Jefferson County, MO, Laclede County, MO, Lawrence County, MO, Lewis County, MO, Lincoln County, MO, Maries County, MO, Marion County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Osage County, MO, Ozark County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Louis County, MO, Shannon County, MO, Shelby County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO

The radar

The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 23:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Feb 26, 5:34 PM CSTSevere Thunderstorm WarningSGFHickory, Polk, St. Clair56 min
Feb 26, 6:05 PM CSTSevere Thunderstorm WarningLSXAudrain, Boone, Callaway40 min
Feb 26, 6:09 PM CSTSevere Thunderstorm WarningSGFDallas47 min
Feb 26, 6:14 PM CSTSevere Thunderstorm WarningSGFBarry, Christian, Lawrence, Stone47 min
Feb 26, 6:17 PM CSTTornado WarningSGFDallas43 min
Feb 26, 6:31 PM CSTTornado WarningSGFLaclede59 min
Feb 26, 6:43 PM CSTSevere Thunderstorm WarningSGFChristian, Greene, Stone62 min
Feb 26, 6:54 PM CSTSevere Thunderstorm WarningSGFDallas, Laclede, Webster, Wright66 min
Feb 26, 7:18 PM CSTSevere Thunderstorm WarningSGFPhelps, Pulaski, Texas57 min
Feb 26, 7:19 PM CSTSevere Thunderstorm WarningLSXGreene, Pike41 min
Feb 26, 7:30 PM CSTSevere Thunderstorm WarningSGFTexas44 min
Feb 26, 7:44 PM CSTSevere Thunderstorm WarningSGFPhelps26 min
Feb 26, 7:51 PM CSTSevere Thunderstorm WarningLSXCrawford36 min
Feb 26, 8:42 PM CSTSevere Thunderstorm WarningSGFDent, Shannon, Texas48 min
Feb 26, 8:44 PM CSTSevere Thunderstorm WarningLSXJefferson, Saint Louis, City of Saint Louis31 min
Feb 26, 9:48 PM CSTSevere Thunderstorm WarningSGFHowell, Oregon, Ozark57 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 26, 6:57 AM CSTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 8 more93 min
Feb 26, 9:26 AM CSTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 17 more2 hr
Feb 26, 12:51 PM CSTMesoscale DiscussionSPCBarton, Bates, Benton, Boone, Caldwell, Carroll and 31 more114 min

Nearby

Severe Thunderstorm Watches in Missouri, 2009Severe Thunderstorm Watches in Illinois, 2009Every severe thunderstorm watch in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.