Alert archive / Indiana / Sullivan County

Weather alerts in Sullivan County, Indiana, 2009

146 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Sullivan County and its neighbors

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

Alerts
146
Warnings
61
Watches
22
Advisories
34
Busiest month
June32 alerts
Busiest day
June 2, 20097 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

1 of 1 tornado warnings covering Sullivan County in 2009 had a tornado report inside them.

Sullivan County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings110%0
Severe thunderstorm warnings13654%0
Flash flood warnings6350%1100%30 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Indianapolis, IN: tornado warnings26388%743%11 min
NWS Indianapolis, IN: severe thunderstorm warnings1367049%20169%21 min
NWS Indianapolis, IN: flash flood warnings431663%2882%46 min

An office's figures cover every county it serves, including across state lines.

Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.

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.

IssuedProductOfficeLasted
Jan 5, 3:20 PM ESTWinter Weather AdvisoryIND33 hr
Jan 14, 3:50 AM ESTWind Chill AdvisoryIND3 days
Jan 25, 3:35 PM ESTWinter Storm WatchIND24 hr
Jan 26, 3:25 PM ESTWinter Storm WarningIND45 hr
Jan 27, 7:25 PM ESTMesoscale DiscussionSPC6 hr
Feb 3, 12:16 PM ESTWinter Weather AdvisoryIND7 hr
Feb 10, 3:42 AM ESTHigh Wind WatchIND11 hr
Feb 10, 2:37 PM ESTHigh Wind WarningIND34 hr
Feb 11, 8:02 AM ESTAreal Flood AdvisoryIND103 days
Feb 11, 9:11 AM ESTAreal Flood WarningIND77 days
Feb 11, 9:20 AM ESTAreal Flood WarningIND86 days
Feb 11, 9:48 AM ESTRiver Flood WarningIND12 days
Feb 11, 9:48 AM ESTRiver Flood WarningIND15 days
Feb 11, 9:48 AM ESTRiver Flood WarningIND15 days
Feb 11, 7:21 PM ESTAreal Flood WarningIND91 days
Feb 11, 10:13 PM ESTAreal Flood AdvisoryIND111 days
Feb 12, 12:56 AM ESTWind AdvisoryIND17 hr
Feb 27, 10:19 AM ESTRiver Flood WarningIND51 hr
Feb 27, 10:19 AM ESTRiver Flood WarningIND4 days
Feb 27, 10:19 AM ESTRiver Flood WarningIND3 days
Mar 5, 2:10 PM ESTWind AdvisoryIND4 hr
Mar 7, 10:23 AM ESTRiver Flood WarningIND16 days
Mar 7, 10:23 AM ESTRiver Flood WarningIND19 days
Mar 8, 5:13 AM EDTWind AdvisoryIND23 hr
Mar 8, 11:39 AM EDTTornado WatchSPC7 hr
Mar 8, 2:55 PM EDTTornado WarningIND30 min
Mar 9, 11:27 AM EDTRiver Flood WarningIND17 days
Mar 10, 8:31 PM EDTMesoscale DiscussionSPC119 min
Mar 18, 3:22 PM EDTMesoscale DiscussionSPC113 min
Mar 24, 3:34 AM EDTWind AdvisoryIND19 hr
Mar 28, 6:54 PM EDTSevere Thunderstorm WarningIND36 min
Apr 2, 6:27 PM EDTTornado WatchSPC3 hr
Apr 2, 11:19 PM EDTRiver Flood WarningIND8 hr
Apr 2, 11:19 PM EDTRiver Flood WarningIND8 hr
Apr 2, 11:19 PM EDTRiver Flood WarningIND8 hr
Apr 3, 9:20 AM EDTWind AdvisoryIND6 hr
Apr 5, 11:17 AM EDTRiver Flood WarningIND21 days
Apr 5, 11:17 AM EDTRiver Flood WarningIND54 days
Apr 5, 11:17 AM EDTRiver Flood WarningIND54 days
Apr 5, 11:50 AM EDTMesoscale DiscussionSPC115 min
Apr 5, 3:02 PM EDTMesoscale DiscussionSPC88 min
Apr 5, 8:23 PM EDTAreal Flood AdvisoryIND67 days
Apr 5, 10:30 PM EDTFreeze WarningIND35 hr
Apr 6, 3:49 AM EDTFreeze WatchIND35 hr
Apr 6, 4:14 AM EDTAreal Flood AdvisoryIND71 days
Apr 7, 3:05 PM EDTFreeze WarningIND18 hr
Apr 10, 1:20 PM EDTFreeze WatchIND23 hr
Apr 11, 12:45 PM EDTFreeze WarningIND20 hr
Apr 13, 4:58 PM EDTAreal Flood AdvisoryIND73 days
Apr 20, 12:09 AM EDTAreal Flood AdvisoryIND154 days
Apr 27, 3:20 AM EDTWind AdvisoryIND11 hr
Apr 30, 11:35 AM EDTRiver Flood WarningIND12 days
May 7, 3:01 AM EDTDense Fog AdvisoryIND5 hr
May 7, 8:04 AM EDTDense Fog AdvisoryIND116 min
May 7, 6:56 PM EDTMesoscale DiscussionSPC64 min
May 7, 7:14 PM EDTSevere Thunderstorm WatchSPC8 hr
May 8, 12:46 AM EDTMesoscale DiscussionSPC89 min
May 13, 10:24 AM EDTRiver Flood WarningIND12 days
May 13, 10:27 AM EDTMesoscale DiscussionSPC63 min
May 13, 3:31 PM EDTFlood WatchIND15 hr
May 13, 4:00 PM EDTTornado WatchSPC5 hr
May 13, 7:05 PM EDTMesoscale DiscussionSPC85 min
May 13, 8:56 PM EDTAreal Flood WarningIND12 hr
May 14, 12:27 AM EDTMesoscale DiscussionSPC93 min
May 14, 1:42 AM EDTSevere Thunderstorm WatchSPC4 hr
May 14, 2:37 AM EDTSevere Thunderstorm WarningIND53 min
May 14, 3:14 AM EDTFlash Flood WarningIND3 hr
May 14, 8:45 AM EDTAreal Flood WarningIND12 hr
May 15, 6:31 PM EDTMesoscale DiscussionSPC119 min
May 15, 9:14 PM EDTMesoscale DiscussionSPC2 hr
May 17, 3:49 AM EDTFrost AdvisoryIND28 hr
May 25, 1:23 PM EDTFlash Flood WarningIND3 hr
May 25, 4:13 PM EDTFlash Flood WarningIND3 hr
May 27, 2:49 PM EDTMesoscale DiscussionSPC116 min
May 27, 10:00 PM EDTFlash Flood WarningIND90 min
May 27, 11:31 PM EDTAreal Flood WarningIND3 hr
May 30, 4:49 PM EDTSevere Thunderstorm WatchSPC11 hr
May 30, 7:01 PM EDTMesoscale DiscussionSPC59 min
May 30, 8:40 PM EDTSevere Thunderstorm WarningIND20 min
May 30, 9:53 PM EDTMesoscale DiscussionSPC67 min
Jun 2, 11:51 AM EDTRiver Flood AdvisoryIND23 hr
Jun 2, 11:51 AM EDTRiver Flood AdvisoryIND23 hr
Jun 2, 11:51 AM EDTRiver Flood AdvisoryIND23 hr
Jun 2, 12:58 PM EDTMesoscale DiscussionSPC92 min
Jun 2, 3:18 PM EDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 4:47 PM EDTMesoscale DiscussionSPC88 min
Jun 2, 7:13 PM EDTMesoscale DiscussionSPC62 min
Jun 8, 9:49 AM EDTMesoscale DiscussionSPC86 min
Jun 10, 4:13 PM EDTMesoscale DiscussionSPC92 min
Jun 10, 9:58 PM EDTMesoscale DiscussionSPC62 min
Jun 11, 12:06 AM EDTTornado WatchSPC5 hr
Jun 11, 4:07 PM EDTMesoscale DiscussionSPC53 min
Jun 11, 4:42 PM EDTMesoscale DiscussionSPC33 min
Jun 18, 6:28 AM EDTSevere Thunderstorm WarningIND47 min
Jun 18, 7:09 AM EDTMesoscale DiscussionSPC2 hr
Jun 18, 7:10 AM EDTSevere Thunderstorm WarningIND50 min
Jun 18, 7:30 AM EDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 7:52 AM EDTFlash Flood WarningIND3 hr
Jun 18, 8:04 AM EDTSevere Thunderstorm WarningIND41 min
Jun 18, 8:14 AM EDTSevere Thunderstorm WarningIND46 min
Jun 18, 10:59 PM EDTRiver Flood WarningIND15 hr
Jun 19, 3:51 AM EDTHeat AdvisoryIND15 hr
Jun 19, 12:50 PM EDTRiver Flood WarningIND3 days
Jun 19, 6:59 PM EDTTornado WatchSPC8 hr
Jun 19, 9:34 PM EDTMesoscale DiscussionSPC86 min
Jun 20, 1:17 AM EDTSevere Thunderstorm WarningIND43 min
Jun 20, 2:25 AM EDTFlash Flood WarningIND3 hr
Jun 20, 12:13 PM EDTRiver Flood WarningIND22 hr
Jun 20, 12:13 PM EDTRiver Flood WarningIND62 hr
Jun 21, 3:23 PM EDTMesoscale DiscussionSPC97 min
Jun 22, 3:06 PM EDTHeat AdvisoryIND27 hr
Jun 26, 11:14 AM EDTHeat AdvisoryIND7 hr
Jul 24, 5:21 AM EDTDense Fog AdvisoryIND4 hr
Jul 25, 12:46 AM EDTMesoscale DiscussionSPC89 min
Jul 25, 2:17 AM EDTSevere Thunderstorm WarningIND43 min
Jul 25, 2:26 AM EDTSevere Thunderstorm WatchSPC4 hr
Jul 25, 2:52 AM EDTSevere Thunderstorm WarningIND38 min
Jul 25, 3:32 AM EDTSevere Thunderstorm WarningIND57 min
Aug 4, 9:24 AM EDTMesoscale DiscussionSPC36 min
Aug 4, 9:41 AM EDTSevere Thunderstorm WatchSPC6 hr
Aug 4, 11:22 AM EDTSevere Thunderstorm WarningIND38 min
Aug 4, 12:03 PM EDTSevere Thunderstorm WarningIND42 min
Aug 8, 3:40 PM EDTHeat AdvisoryIND27 hr
Aug 19, 6:11 PM EDTTornado WatchSPC5 hr
Sep 9, 5:37 AM EDTDense Fog AdvisoryIND5 hr
Sep 26, 3:38 AM EDTDense Fog AdvisoryIND6 hr
Sep 26, 2:42 PM EDTMesoscale DiscussionSPC93 min
Sep 28, 12:21 AM EDTSevere Thunderstorm WatchSPC3 hr
Oct 7, 2:52 PM EDTFlood WatchIND47 hr
Oct 16, 3:44 PM EDTFreeze WatchIND23 hr
Oct 17, 3:05 PM EDTFrost AdvisoryIND17 hr
Oct 29, 4:45 PM EDTRiver Flood WarningIND19 hr
Oct 29, 4:45 PM EDTRiver Flood WarningIND19 hr
Oct 29, 4:45 PM EDTRiver Flood WarningIND19 hr
Nov 17, 11:40 AM ESTRiver Flood AdvisoryIND60 hr
Nov 17, 11:40 AM ESTRiver Flood AdvisoryIND3 days
Nov 17, 11:40 AM ESTRiver Flood AdvisoryIND3 days
Nov 20, 6:34 AM ESTDense Fog AdvisoryIND4 hr
Dec 7, 3:15 PM ESTHigh Wind WatchIND24 hr
Dec 8, 3:04 PM ESTWind AdvisoryIND30 hr
Dec 13, 7:20 PM ESTRiver Flood WarningIND19 hr
Dec 13, 7:20 PM ESTRiver Flood WarningIND19 hr
Dec 13, 7:20 PM ESTRiver Flood WarningIND19 hr
Dec 23, 11:17 PM ESTRiver Flood WarningIND6 days
Dec 23, 11:17 PM ESTRiver Flood WarningIND8 days
Dec 23, 11:17 PM ESTRiver Flood WarningIND8 days

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe 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.