Alert archive / Indiana

Weather alerts in Jennings County, Indiana

2,759 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Jennings County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
2,759
Warnings
698
Watches
567
Advisories
552
Busiest year
2010167 alerts
Average year
67over 41 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 0% of tornado reports in Jennings County fell inside a tornado warning, and 95% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810100%0
200930100%0
201070100%0
201140100%10%
201220100%0
201320100%0
201510100%0
201730100%0
201810100%10%
20197186%0
202010100%0
202210100%0
202320100%0
202420100%0
20253167%0

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200810820%888%22 min
20099544%1100%5 min
201012558%367%15 min
201112833%367%11 min
201211555%1182%11 min
201312467%20%
20149456%250%7 min
20157529%2100%19 min
20164175%0
201720575%1100%12 min
201810460%1100%11 min
20199633%250%21 min
20209722%2100%17 min
20217443%1100%3 min
20229544%683%27 min
202310640%520%21 min
20246350%2100%28 min
2025191142%2100%24 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083233%2100%54 min
200920100%0
20103233%0
20114175%0
201310100%0
20155180%0
20163233%1100%24 min
20172150%0
20182150%1100%81 min
20195340%0
202140100%0
2024110%1100%55 min

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 20, 3:32 AM EDTSevere Thunderstorm WarningIND28 min
Aug 16, 6:38 PM EDTSevere Thunderstorm WarningIND32 min
Aug 16, 6:07 PM EDTSevere Thunderstorm WarningIND38 min
Aug 13, 6:12 PM EDTAreal Flood WarningIND3 hr
Aug 12, 11:43 PM EDTAreal Flood WarningIND9 hr
Aug 12, 2:53 PM EDTFlash Flood WarningIND9 hr
Aug 12, 12:59 PM EDTAreal Flood WarningIND3 hr
Aug 12, 10:28 AM EDTRiver Flood WarningIND19 hr
Aug 12, 9:48 AM EDTAreal Flood WarningIND9 hr
Aug 12, 8:11 AM EDTFlash Flood WarningIND5 hr
Aug 12, 5:53 AM EDTAreal Flood WarningIND2 hr
Aug 12, 1:56 AM EDTAreal Flood WarningIND4 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.