Alert archive / Indiana / Mesoscale Discussions / 2009

Mesoscale Discussions in Indiana, May 2009

20 mesoscale discussions in May 2009. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in May 2009. Tap one for its archive.

Mesoscale Discussions
20
Busiest day
May 8, 20093 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
May 7, 6:56 PM EDTMesoscale DiscussionSPCSullivan, Vermillion, Vigo64 min
May 8, 12:46 AM EDTMesoscale DiscussionSPCDaviess, Gibson, Greene, Knox, Pike, Posey and 4 more89 min
May 8, 1:08 PM EDTMesoscale DiscussionSPCCrawford, Floyd, Harrison97 min
May 8, 3:16 PM EDTMesoscale DiscussionSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick89 min
May 13, 10:27 AM EDTMesoscale DiscussionSPCBrown, Clay, Daviess, Dubois, Fountain, Gibson and 16 more63 min
May 13, 7:05 PM EDTMesoscale DiscussionSPCClay, Crawford, Daviess, Dubois, Gibson, Greene and 15 more85 min
May 13, 11:17 PM EDTMesoscale DiscussionSPCBenton, Boone, Carroll, Cass, Clinton, Elkhart and 23 more58 min
May 14, 12:27 AM EDTMesoscale DiscussionSPCBartholomew, Brown, Clay, Crawford, Daviess, Decatur and 25 more93 min
May 14, 5:37 AM EDTMesoscale DiscussionSPCDearborn, Ohio, Switzerland53 min
May 15, 1:57 PM EDTMesoscale DiscussionSPCHarrison63 min
May 15, 6:31 PM EDTMesoscale DiscussionSPCBenton, Boone, Carroll, Cass, Clay, Clinton and 25 more119 min
May 15, 9:14 PM EDTMesoscale DiscussionSPCAdams, Allen, Bartholomew, Benton, Blackford, Boone and 69 more2 hr
May 15, 11:28 PM EDTMesoscale DiscussionSPCAdams, Bartholomew, Blackford, Boone, Brown, Clay and 31 more2 hr
May 27, 2:49 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Clay, Daviess, Dubois, Fountain and 20 more116 min
May 28, 1:28 PM EDTMesoscale DiscussionSPCClark, Crawford, Dearborn, Floyd, Harrison, Jackson and 10 more62 min
May 29, 4:17 PM EDTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 25 more88 min
May 30, 3:51 PM EDTMesoscale DiscussionSPCOhio, Switzerland84 min
May 30, 7:01 PM EDTMesoscale DiscussionSPCBartholomew, Benton, Boone, Brown, Carroll, Cass and 62 more59 min
May 30, 9:53 PM EDTMesoscale DiscussionSPCBartholomew, Boone, Brown, Carroll, Clark, Clay and 53 more67 min
May 30, 11:37 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 21 more23 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

50 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20082010

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.