Alert archive / Indiana / Allen County

Weather alerts in Allen County, Indiana, 2018

116 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Allen County and its neighbors

Each county as a circle sized by its count in 2018. Tap one for its archive.

Alerts
116
Warnings
42
Watches
9
Advisories
36
Busiest month
August23 alerts
Busiest day
July 20, 20187 alerts

Over time

By month

Warning verification

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

Allen County, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11282%50%
Flash flood warnings10100%0

Each office's whole area, 2018

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Northern Indiana: tornado warnings6267%633%2 min
NWS Northern Indiana: severe thunderstorm warnings933463%18741%19 min
NWS Northern Indiana: flash flood warnings9278%475%59 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 1, 3:57 AM ESTWind Chill WarningIWX33 hr
Jan 2, 3:06 PM ESTWind Chill AdvisoryIWX16 hr
Jan 7, 3:55 AM ESTWinter Weather AdvisoryIWX31 hr
Jan 7, 7:16 PM ESTMesoscale DiscussionSPC6 hr
Jan 11, 3:02 PM ESTWinter Weather AdvisoryIWX27 hr
Jan 12, 3:04 AM ESTMesoscale DiscussionSPC6 hr
Jan 14, 3:16 PM ESTWinter Weather AdvisoryIWX34 hr
Jan 21, 5:01 AM ESTDense Fog AdvisoryIWX26 hr
Jan 22, 10:03 PM ESTSpecial Weather StatementIWX27 min
Feb 5, 3:28 AM ESTWinter Weather AdvisoryIWX23 hr
Feb 10, 2:52 PM ESTWinter Weather AdvisoryIWX22 hr
Feb 14, 6:51 PM ESTDense Fog AdvisoryIWX27 hr
Feb 19, 1:10 AM ESTFlood WatchIWX63 hr
Feb 19, 10:39 AM ESTRiver Flood WarningIWX16 days
Feb 19, 10:39 AM ESTRiver Flood WarningIWX7 days
Feb 19, 10:39 AM ESTRiver Flood WarningIWX8 days
Feb 19, 2:24 PM ESTRiver Flood WarningIWX18 hr
Feb 19, 3:34 PM ESTRiver Flood WarningIWX24 hr
Feb 19, 9:57 PM ESTRiver Flood WarningIWX7 days
Feb 20, 8:37 PM ESTRiver Flood WarningIWX64 hr
Feb 20, 9:26 PM ESTRiver Flood WarningIWX49 hr
Feb 25, 1:35 AM ESTWind AdvisoryIWX8 hr
Mar 1, 9:05 PM ESTRiver Flood WarningIWX40 hr
Mar 31, 4:11 AM EDTWind AdvisoryIWX15 hr
Apr 3, 1:44 PM EDTSpecial Weather StatementIWX31 min
Apr 3, 11:13 PM EDTRiver Flood WarningIWX24 hr
Apr 4, 3:41 AM EDTWind AdvisoryIWX7 hr
Apr 4, 5:31 AM EDTSpecial Weather StatementIWX59 min
Apr 4, 2:29 PM EDTRiver Flood WarningIWX5 days
Apr 14, 10:21 AM EDTRiver Flood WatchIWX25 hr
Apr 15, 11:20 AM EDTRiver Flood WarningIWX5 days
Apr 30, 6:21 PM EDTRed Flag WarningIWX26 hr
May 2, 9:49 PM EDTSevere Thunderstorm WarningIWX24 min
May 2, 9:53 PM EDTFlash Flood WatchIWX11 hr
May 3, 1:54 PM EDTRiver Flood WarningIWX6 days
May 3, 9:48 PM EDTWind AdvisoryIWX18 hr
May 14, 11:50 AM EDTRiver Flood WarningIWX7 days
May 22, 3:08 AM EDTDense Fog AdvisoryIWX7 hr
May 30, 4:08 PM EDTSpecial Weather StatementIWX37 min
May 31, 2:19 PM EDTSevere Thunderstorm WarningIWX41 min
May 31, 2:48 PM EDTSevere Thunderstorm WarningIWX42 min
May 31, 3:00 PM EDTMesoscale DiscussionSPC90 min
May 31, 8:36 PM EDTSevere Thunderstorm WarningIWX39 min
Jun 9, 7:03 AM EDTSpecial Weather StatementIWX42 min
Jun 9, 12:59 PM EDTSpecial Weather StatementIWX31 min
Jun 10, 10:22 AM EDTRiver Flood WarningIWX5 days
Jun 16, 3:34 PM EDTHeat AdvisoryIWX52 hr
Jun 19, 3:53 PM EDTSevere Thunderstorm WarningIWX52 min
Jun 19, 4:43 PM EDTSpecial Weather StatementIWX47 min
Jun 19, 5:34 PM EDTAreal Flood WarningIWX3 hr
Jun 21, 6:18 PM EDTAreal Flood AdvisoryIWX3 hr
Jun 21, 11:42 PM EDTRiver Flood WarningIWX22 hr
Jun 22, 7:25 AM EDTRiver Flood WarningIWX63 hr
Jun 22, 7:25 AM EDTRiver Flood WarningIWX50 hr
Jun 22, 7:25 AM EDTRiver Flood WarningIWX51 hr
Jun 22, 12:33 PM EDTFlash Flood WatchIWX9 hr
Jun 23, 3:05 AM EDTAreal Flood AdvisoryIWX3 hr
Jun 27, 3:28 PM EDTExcessive Heat WatchIWX36 hr
Jun 29, 2:58 AM EDTExcessive Heat WarningIWX65 hr
Jul 3, 2:26 PM EDTHeat AdvisoryIWX37 hr
Jul 16, 1:32 PM EDTMesoscale DiscussionSPC2 hr
Jul 20, 1:43 PM EDTMesoscale DiscussionSPC92 min
Jul 20, 2:12 PM EDTTornado WatchSPC3 hr
Jul 20, 3:00 PM EDTSevere Thunderstorm WarningIWX45 min
Jul 20, 3:45 PM EDTSpecial Weather StatementIWX45 min
Jul 20, 3:59 PM EDTMesoscale DiscussionSPC61 min
Jul 20, 4:07 PM EDTSevere Thunderstorm WarningIWX38 min
Jul 20, 4:11 PM EDTAreal Flood AdvisoryIWX3 hr
Jul 26, 1:21 PM EDTMesoscale DiscussionSPC114 min
Aug 6, 5:42 PM EDTSpecial Weather StatementIWX48 min
Aug 6, 9:05 PM EDTSevere Thunderstorm WarningIWX40 min
Aug 8, 2:11 PM EDTSevere Thunderstorm WarningIWX34 min
Aug 8, 2:46 PM EDTSpecial Weather StatementIWX44 min
Aug 9, 8:28 PM EDTSpecial Weather StatementIWX47 min
Aug 9, 9:07 PM EDTSpecial Weather StatementIWX38 min
Aug 9, 9:59 PM EDTAreal Flood AdvisoryIWX3 hr
Aug 10, 7:18 PM EDTSpecial Weather StatementIWX42 min
Aug 11, 4:34 AM EDTDense Fog AdvisoryIWX4 hr
Aug 11, 7:34 PM EDTSevere Thunderstorm WarningIWX41 min
Aug 16, 9:39 PM EDTAreal Flood AdvisoryIWX3 hr
Aug 16, 11:13 PM EDTFlash Flood WarningIWX3 hr
Aug 17, 12:38 AM EDTAreal Flood AdvisoryIWX3 hr
Aug 17, 4:52 PM EDTAreal Flood AdvisoryIWX3 hr
Aug 18, 3:47 AM EDTDense Fog AdvisoryIWX5 hr
Aug 20, 4:16 PM EDTAreal Flood AdvisoryIWX119 min
Aug 20, 4:40 PM EDTSpecial Weather StatementIWX35 min
Aug 20, 4:43 PM EDTSevere Thunderstorm WarningIWX21 min
Aug 20, 5:00 PM EDTSpecial Weather StatementIWX30 min
Aug 20, 8:44 PM EDTRiver Flood WarningIWX9 hr
Aug 25, 7:14 AM EDTSpecial Weather StatementIWX31 min
Aug 25, 8:59 AM EDTSpecial Weather StatementIWX31 min
Aug 25, 9:22 AM EDTAreal Flood AdvisoryIWX4 hr
Sep 7, 3:36 AM EDTFlash Flood WatchIWX50 hr
Sep 7, 2:00 PM EDTRiver Flood WarningIWX25 hr
Sep 11, 2:28 AM EDTDense Fog AdvisoryIWX6 hr
Sep 14, 1:38 AM EDTDense Fog AdvisoryIWX9 hr
Sep 25, 6:21 PM EDTMesoscale DiscussionSPC114 min
Sep 25, 8:45 PM EDTSevere Thunderstorm WatchSPC87 min
Oct 6, 2:31 PM EDTSevere Thunderstorm WatchSPC5 hr
Oct 6, 5:35 PM EDTMesoscale DiscussionSPC85 min
Oct 6, 5:55 PM EDTSpecial Weather StatementIWX35 min
Oct 8, 12:12 AM EDTDense Fog AdvisoryIWX11 hr
Oct 12, 2:55 PM EDTFrost AdvisoryIWX18 hr
Oct 15, 2:17 PM EDTFreeze WarningIWX19 hr
Oct 17, 3:02 AM EDTFreeze WarningIWX30 hr
Oct 20, 10:57 AM EDTWind AdvisoryIWX9 hr
Nov 2, 6:36 AM EDTRiver Flood WarningIWX4 days
Nov 15, 1:03 AM ESTWinter Weather AdvisoryIWX15 hr
Nov 15, 5:20 AM ESTIce Storm WarningIWX7 hr
Nov 30, 1:10 AM ESTFreezing Fog AdvisoryIWX10 hr
Nov 30, 8:17 PM ESTDense Fog AdvisoryIWX7 hr
Nov 30, 8:17 PM ESTFreezing Fog AdvisoryIWX10 hr
Dec 2, 1:50 AM ESTRiver Flood WarningIWX5 days
Dec 4, 6:30 PM ESTSpecial Weather StatementIWX60 min
Dec 4, 7:31 PM ESTSpecial Weather StatementIWX89 min
Dec 20, 8:41 PM ESTDense Fog AdvisoryIWX5 hr

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 archive20172019

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.