Alert archive / Michigan / Berrien County

Weather alerts in Berrien County, Michigan, 2023

96 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Berrien County and its neighbors

Each county as a circle sized by its count in 2023. Tap one for its archive.

Alerts
96
Warnings
23
Watches
12
Advisories
24
Busiest month
July23 alerts
Busiest day
April 5, 20237 alerts

Over time

By month

Warning verification

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

Berrien County, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings11555%520%2 min
Flash flood warnings2150%367%46 min

Each office's whole area, 2023

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Northern Indiana: tornado warnings22673%3259%11 min
NWS Northern Indiana: severe thunderstorm warnings1256846%34858%24 min
NWS Northern Indiana: flash flood warnings4250%933%47 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, 10:16 PM ESTDense Fog AdvisoryIWX14 hr
Jan 11, 10:10 PM ESTDense Fog AdvisoryIWX10 hr
Jan 24, 3:44 AM ESTWinter Weather AdvisoryIWX3 days
Jan 28, 3:10 PM ESTWinter Weather AdvisoryIWX18 hr
Feb 7, 2:30 PM ESTHigh Wind WatchIWX24 hr
Feb 8, 2:26 PM ESTWind AdvisoryIWX29 hr
Feb 14, 3:20 AM ESTWind AdvisoryIWX36 hr
Feb 16, 2:42 PM ESTWinter Weather AdvisoryIWX12 hr
Feb 22, 3:42 PM ESTAreal Flood AdvisoryIWX5 hr
Feb 23, 3:05 AM ESTDense Fog AdvisoryIWX8 hr
Mar 2, 4:20 AM ESTWinter Storm WatchIWX18 hr
Mar 2, 10:21 PM ESTWinter Storm WarningIWX26 hr
Mar 3, 9:23 AM ESTRiver Flood WarningIWX5 days
Mar 3, 5:25 PM ESTMesoscale DiscussionSPC4 hr
Mar 3, 9:27 PM ESTRiver Flood WarningIWX5 days
Mar 5, 7:59 AM ESTDense Fog AdvisoryIWX2 hr
Mar 9, 3:22 AM ESTWinter Weather AdvisoryIWX32 hr
Mar 13, 2:37 PM EDTWinter Weather AdvisoryIWX13 hr
Mar 18, 5:10 AM EDTWinter Weather AdvisoryIWX23 hr
Mar 26, 6:38 PM EDTSpecial Weather StatementIWX22 min
Mar 26, 7:00 PM EDTSpecial Weather StatementIWX75 min
Mar 31, 4:53 AM EDTWind AdvisoryIWX36 hr
Mar 31, 5:50 PM EDTSevere Thunderstorm WarningIWX31 min
Mar 31, 6:05 PM EDTSevere Thunderstorm WarningIWX29 min
Mar 31, 7:20 PM EDTMesoscale DiscussionSPC115 min
Mar 31, 7:33 PM EDTSevere Thunderstorm WarningIWX19 min
Mar 31, 7:59 PM EDTTornado WatchSPC7 hr
Mar 31, 10:00 PM EDTSevere Thunderstorm Warning Considerable damage threatIWX45 min
Apr 5, 6:30 AM EDTSevere Thunderstorm WarningIWX45 min
Apr 5, 7:09 AM EDTMesoscale DiscussionSPC2 hr
Apr 5, 7:53 AM EDTSpecial Weather StatementIWX37 min
Apr 5, 8:41 AM EDTTornado WatchSPC7 hr
Apr 5, 9:46 AM EDTAreal Flood AdvisoryIWX3 hr
Apr 5, 10:02 AM EDTSevere Thunderstorm WarningIWX43 min
Apr 5, 10:36 AM EDTSevere Thunderstorm WarningIWX54 min
Apr 11, 3:34 AM EDTFire Weather WatchIWX24 hr
Apr 12, 3:52 AM EDTRed Flag WarningIWX16 hr
Apr 18, 1:35 PM EDTFreeze WarningIWX18 hr
Apr 23, 3:30 AM EDTFreeze WarningIWX29 hr
Apr 25, 1:32 PM EDTFreeze WarningIWX18 hr
Apr 26, 11:36 AM EDTFreeze WarningIWX20 hr
May 3, 3:34 PM EDTFrost AdvisoryIWX16 hr
May 6, 11:29 PM EDTSpecial Weather StatementIWX46 min
May 6, 11:48 PM EDTSpecial Weather StatementIWX42 min
May 7, 12:03 AM EDTSpecial Weather StatementIWX42 min
Jun 1, 2:25 PM EDTSpecial Weather StatementIWX50 min
Jun 7, 4:50 AM EDTBeach Hazards StatementIWX24 hr
Jun 10, 11:06 AM EDTBeach Hazards StatementIWX54 hr
Jun 14, 3:35 PM EDTBeach Hazards StatementIWX54 hr
Jun 25, 1:15 PM EDTSpecial Weather StatementIWX45 min
Jun 25, 1:34 PM EDTTornado WatchSPC6 hr
Jun 26, 4:33 AM EDTBeach Hazards StatementIWX45 hr
Jun 29, 7:25 AM EDTSpecial Weather StatementIWX50 min
Jun 29, 2:08 PM EDTSevere Thunderstorm WatchSPC8 hr
Jul 5, 3:41 PM EDTBeach Hazards StatementIWX31 hr
Jul 5, 8:34 PM EDTSpecial Weather StatementIWX71 min
Jul 12, 8:02 PM EDTMesoscale DiscussionSPC58 min
Jul 12, 8:45 PM EDTSevere Thunderstorm WarningIWX60 min
Jul 12, 8:55 PM EDTTornado WatchSPC6 hr
Jul 14, 10:29 PM EDTMesoscale DiscussionSPC91 min
Jul 19, 4:10 PM EDTBeach Hazards StatementIWX56 hr
Jul 26, 3:03 AM EDTHeat AdvisoryIWX66 hr
Jul 26, 10:03 AM EDTSevere Thunderstorm WatchSPC6 hr
Jul 26, 10:24 AM EDTHeat AdvisoryIWX50 hr
Jul 26, 12:05 PM EDTSpecial Weather StatementIWX40 min
Jul 26, 12:20 PM EDTSevere Thunderstorm WarningIWX40 min
Jul 26, 12:38 PM EDTMesoscale DiscussionSPC97 min
Jul 26, 4:57 PM EDTMesoscale DiscussionSPC63 min
Jul 27, 3:26 AM EDTDense Fog AdvisoryIWX6 hr
Jul 28, 6:15 AM EDTSevere Thunderstorm WarningIWX30 min
Jul 28, 6:59 AM EDTMesoscale DiscussionSPC2 hr
Jul 28, 8:17 AM EDTSpecial Weather StatementIWX43 min
Jul 29, 12:00 AM EDTSevere Thunderstorm WatchSPC4 hr
Jul 29, 12:54 AM EDTSevere Thunderstorm Warning Considerable damage threatIWX66 min
Jul 29, 12:55 AM EDTFlash Flood WarningIWX4 hr
Jul 29, 1:44 AM EDTFlash Flood WarningIWX3 hr
Jul 29, 9:53 AM EDTBeach Hazards StatementIWX10 hr
Aug 4, 5:16 AM EDTBeach Hazards StatementIWX22 hr
Aug 7, 4:11 AM EDTBeach Hazards StatementIWX23 hr
Aug 14, 4:05 AM EDTBeach Hazards StatementIWX43 hr
Aug 16, 2:57 PM EDTBeach Hazards StatementIWX49 hr
Aug 17, 5:41 AM EDTMesoscale DiscussionSPC3 hr
Aug 21, 2:48 PM EDTHeat AdvisoryIWX68 hr
Aug 22, 3:12 AM EDTExcessive Heat WatchIWX24 hr
Aug 23, 3:19 AM EDTExcessive Heat WarningIWX45 hr
Aug 24, 6:35 PM EDTSevere Thunderstorm WatchSPC5 hr
Aug 25, 10:52 AM EDTBeach Hazards StatementIWX42 hr
Aug 28, 2:53 PM EDTBeach Hazards StatementIWX56 hr
Sep 6, 3:38 PM EDTBeach Hazards StatementIWX58 hr
Sep 11, 3:48 PM EDTBeach Hazards StatementIWX32 hr
Sep 29, 10:28 PM EDTDense Fog AdvisoryIWX13 hr
Dec 17, 3:56 AM ESTWinter Weather AdvisoryIWX46 hr
Dec 17, 12:39 PM ESTWinter Storm WarningIWX33 hr
Dec 18, 7:43 AM ESTSpecial Weather StatementIWX32 min
Dec 23, 9:06 AM ESTDense Fog AdvisoryIWX4 hr
Dec 23, 5:23 PM ESTDense Fog AdvisoryIWX20 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 archive20222024

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.