Alert archive / Indiana / Porter County

Weather alerts in Porter County, Indiana, 2022

117 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Porter County and its neighbors

Each county as a circle sized by its count in 2022. Tap one for its archive.

Alerts
117
Warnings
23
Watches
15
Advisories
39
Busiest month
August20 alerts
Busiest day
August 29, 20228 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Porter County in 2022 had a tornado report inside them.

Porter County, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings11827%1275%19 min
Flash flood warnings00

Each office's whole area, 2022

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Chicago, IL: tornado warnings15380%1560%13 min
NWS Chicago, IL: severe thunderstorm warnings14810231%46677%26 min
NWS Chicago, IL: flash flood warnings19858%3379%95 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
Jan 4, 3:43 AM CSTWinter Weather AdvisoryLOT41 hr
Jan 5, 9:34 AM CSTSnow Squall WarningLOT56 min
Jan 7, 2:17 PM CSTWinter Weather AdvisoryLOT34 hr
Jan 18, 2:39 PM CSTWinter Storm WatchLOT13 hr
Jan 19, 3:12 AM CSTWinter Weather AdvisoryLOT39 hr
Jan 22, 9:21 AM CSTWinter Storm WatchLOT10 hr
Jan 22, 9:21 AM CSTWinter Weather AdvisoryLOT32 hr
Jan 23, 3:17 PM CSTWinter Weather AdvisoryLOT22 hr
Jan 25, 3:13 AM CSTWind Chill AdvisoryLOT31 hr
Jan 27, 9:13 PM CSTWinter Weather AdvisoryLOT24 hr
Jan 31, 3:41 AM CSTWinter Storm WatchLOT23 hr
Jan 31, 2:07 PM CSTWinter Storm WarningLOT3 days
Feb 2, 1:13 AM CSTMesoscale DiscussionSPC6 hr
Feb 2, 7:11 AM CSTMesoscale DiscussionSPC5 hr
Feb 15, 3:02 PM CSTWinter Storm WatchLOT13 hr
Feb 16, 3:24 AM CSTWind AdvisoryLOT15 hr
Feb 16, 3:55 AM CSTWinter Storm WarningLOT44 hr
Feb 16, 3:04 PM CSTLakeshore Flood AdvisoryLOT39 hr
Feb 17, 2:42 AM CSTAreal Flood AdvisoryLOT9 hr
Feb 17, 11:22 AM CSTRiver Flood WatchLOT24 hr
Feb 17, 1:12 PM CSTMesoscale DiscussionSPC5 hr
Feb 18, 10:26 AM CSTWinter Weather AdvisoryLOT23 hr
Feb 18, 11:21 AM CSTRiver Flood WarningLOT21 days
Feb 21, 2:01 PM CSTFlood WatchLOT22 hr
Feb 23, 2:50 PM CSTWinter Weather AdvisoryLOT39 hr
Mar 5, 3:25 AM CSTWind AdvisoryLOT30 hr
Mar 5, 11:53 PM CSTMesoscale DiscussionSPC67 min
Mar 11, 2:33 AM CSTWinter Weather AdvisoryLOT6 hr
Mar 25, 3:03 AM CDTWind AdvisoryLOT19 hr
Mar 25, 5:20 PM CDTSevere Thunderstorm Warning Considerable damage threatLOT40 min
Apr 5, 4:10 AM CDTDense Fog AdvisoryLOT11 hr
Apr 13, 1:48 PM CDTMesoscale DiscussionSPC87 min
Apr 13, 2:08 PM CDTWind AdvisoryLOT21 hr
Apr 14, 10:41 AM CDTHigh Wind WarningLOT8 hr
Apr 26, 3:20 AM CDTFreeze WarningLOT29 hr
Apr 30, 9:12 PM CDTSpecial Weather StatementLOT33 min
May 19, 1:56 AM CDTDense Fog AdvisoryLOT7 hr
May 20, 10:48 AM CDTSpecial Weather StatementLOT57 min
May 20, 12:05 PM CDTWind AdvisoryLOT7 hr
May 20, 7:10 PM CDTMesoscale DiscussionSPC2 hr
May 25, 3:37 PM CDTMesoscale DiscussionSPC113 min
May 26, 3:29 PM CDTBeach Hazards StatementLOT37 hr
Jun 7, 8:06 AM CDTBeach Hazards StatementLOT8 hr
Jun 12, 3:37 PM CDTHeat AdvisoryLOT3 days
Jun 13, 5:51 PM CDTTornado WatchSPC3 hr
Jun 13, 7:28 PM CDTTornado WarningLOT47 min
Jun 13, 8:05 PM CDTMesoscale DiscussionSPC85 min
Jun 13, 8:10 PM CDTSevere Thunderstorm Warning Considerable damage threatLOT20 min
Jun 14, 3:46 AM CDTExcessive Heat WarningLOT40 hr
Jun 17, 2:18 PM CDTBeach Hazards StatementLOT25 hr
Jul 2, 4:03 AM CDTDense Fog AdvisoryLOT4 hr
Jul 4, 2:22 PM CDTHeat AdvisoryLOT30 hr
Jul 4, 8:07 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 4, 11:25 PM CDTMesoscale DiscussionSPC95 min
Jul 5, 1:02 AM CDTMesoscale DiscussionSPC88 min
Jul 5, 3:54 AM CDTFlood WatchLOT23 hr
Jul 5, 4:34 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 5, 10:24 PM CDTMesoscale DiscussionSPC96 min
Jul 5, 11:58 PM CDTMesoscale DiscussionSPC2 hr
Jul 7, 3:44 PM CDTBeach Hazards StatementLOT54 hr
Jul 13, 3:07 AM CDTBeach Hazards StatementLOT24 hr
Jul 21, 5:32 PM CDTMesoscale DiscussionSPC2 hr
Jul 23, 1:06 AM CDTMesoscale DiscussionSPC2 hr
Jul 23, 4:01 AM CDTSevere Thunderstorm WatchSPC8 hr
Jul 23, 4:58 AM CDTSevere Thunderstorm WarningLOT62 min
Jul 23, 5:35 AM CDTMesoscale DiscussionSPC85 min
Jul 23, 10:49 AM CDTSpecial Weather StatementLOT41 min
Jul 23, 2:28 PM CDTFlood WatchLOT20 hr
Jul 27, 4:06 PM CDTSpecial Weather StatementLOT39 min
Aug 2, 2:18 PM CDTHeat AdvisoryLOT25 hr
Aug 3, 1:13 PM CDTMesoscale DiscussionSPC62 min
Aug 3, 1:25 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 3, 2:17 PM CDTSevere Thunderstorm WarningLOT43 min
Aug 3, 2:56 PM CDTSevere Thunderstorm WarningLOT79 min
Aug 3, 3:43 PM CDTBeach Hazards StatementLOT32 hr
Aug 7, 12:53 PM CDTSevere Thunderstorm WarningLOT51 min
Aug 7, 3:37 PM CDTBeach Hazards StatementLOT48 hr
Aug 10, 3:39 AM CDTBeach Hazards StatementLOT54 hr
Aug 16, 3:56 AM CDTBeach Hazards StatementLOT18 hr
Aug 21, 3:23 AM CDTBeach Hazards StatementLOT34 hr
Aug 25, 4:46 AM CDTBeach Hazards StatementLOT41 hr
Aug 29, 10:12 AM CDTSevere Thunderstorm WatchSPC5 hr
Aug 29, 12:53 PM CDTMesoscale DiscussionSPC2 hr
Aug 29, 1:11 PM CDTSpecial Weather StatementLOT2 hr
Aug 29, 1:17 PM CDTSevere Thunderstorm Warning Destructive damage threatLOT43 min
Aug 29, 1:29 PM CDTSevere Thunderstorm Warning Considerable damage threatLOT61 min
Aug 29, 1:39 PM CDTSevere Thunderstorm Warning Destructive damage threatLOT51 min
Aug 29, 1:44 PM CDTSevere Thunderstorm WarningLOT46 min
Aug 29, 1:59 PM CDTSevere Thunderstorm Warning Destructive damage threatLOT16 min
Sep 2, 2:53 PM CDTBeach Hazards StatementLOT67 hr
Sep 8, 4:35 AM CDTDense Fog AdvisoryLOT3 hr
Sep 10, 4:09 AM CDTBeach Hazards StatementLOT59 hr
Sep 11, 10:46 AM CDTAreal Flood AdvisoryLOT3 hr
Sep 12, 3:52 PM CDTSpecial Weather StatementLOT53 min
Sep 12, 4:03 PM CDTBeach Hazards StatementLOT23 hr
Sep 14, 5:09 AM CDTDense Fog AdvisoryLOT3 hr
Sep 15, 2:36 AM CDTDense Fog AdvisoryLOT6 hr
Sep 21, 4:04 AM CDTBeach Hazards StatementLOT48 hr
Sep 24, 3:08 PM CDTBeach Hazards StatementLOT4 days
Oct 7, 3:06 AM CDTFrost AdvisoryLOT29 hr
Oct 13, 2:26 PM CDTFreeze WarningLOT13 hr
Oct 16, 3:01 PM CDTLakeshore Flood AdvisoryLOT60 hr
Oct 17, 3:36 AM CDTWind AdvisoryLOT23 hr
Oct 17, 3:46 AM CDTWinter Weather AdvisoryLOT16 hr
Oct 31, 3:07 AM CDTDense Fog AdvisoryLOT9 hr
Oct 31, 9:17 PM CDTDense Fog AdvisoryLOT13 hr
Nov 4, 3:18 AM CDTWind AdvisoryLOT40 hr
Nov 5, 2:21 AM CDTHigh Wind WarningLOT17 hr
Nov 16, 9:38 AM CSTWinter Weather AdvisoryLOT9 hr
Nov 29, 3:40 AM CSTWind AdvisoryLOT19 hr
Dec 2, 3:39 AM CSTWind AdvisoryLOT29 hr
Dec 10, 8:40 PM CSTDense Fog AdvisoryLOT6 hr
Dec 19, 2:30 PM CSTWinter Storm WatchLOT44 hr
Dec 21, 10:41 AM CSTBlizzard WarningLOT67 hr
Dec 21, 10:41 AM CSTWinter Storm WarningLOT3 days
Dec 22, 3:39 PM CSTMesoscale DiscussionSPC4 hr
Dec 24, 1:05 PM CSTWind Chill AdvisoryLOT21 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 archive20212023

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.