Alert archive / Indiana / DeKalb County

Weather alerts in DeKalb County, Indiana, 2013

108 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

DeKalb County and its neighbors

Each county as a circle sized by its count in 2013. Tap one for its archive.

Alerts
108
Warnings
16
Watches
22
Advisories
29
Busiest month
June30 alerts
Busiest day
November 17, 20137 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 DeKalb County in 2013 had a tornado report inside them.

DeKalb County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings7357%0
Flash flood warnings00

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Northern Indiana: tornado warnings19953%3060%12 min
NWS Northern Indiana: severe thunderstorm warnings1248234%32477%20 min
NWS Northern Indiana: flash flood warnings19858%1694%124 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 12, 12:52 PM ESTFlood WatchIWX20 hr
Jan 19, 3:41 PM ESTWind AdvisoryIWX14 hr
Jan 21, 4:26 AM ESTWind Chill AdvisoryIWX31 hr
Jan 26, 4:30 PM ESTWinter Weather AdvisoryIWX12 hr
Jan 27, 4:07 AM ESTFreezing Rain AdvisoryIWX23 hr
Jan 27, 4:49 PM ESTFlood WatchIWX59 hr
Jan 28, 5:36 PM ESTDense Fog AdvisoryIWX14 hr
Jan 30, 12:05 AM ESTMesoscale DiscussionSPC85 min
Feb 1, 3:48 AM ESTWind Chill AdvisoryIWX9 hr
Feb 3, 2:13 PM ESTWinter Weather AdvisoryIWX25 hr
Feb 5, 7:18 AM ESTDense Fog AdvisoryIWX3 hr
Feb 10, 4:17 PM ESTWind AdvisoryIWX26 hr
Feb 21, 3:18 PM ESTWinter Weather AdvisoryIWX21 hr
Feb 24, 4:40 PM ESTWinter Storm WatchIWX23 hr
Feb 25, 3:36 PM ESTWinter Weather AdvisoryIWX42 hr
Mar 4, 4:14 AM ESTWinter Storm WatchIWX12 hr
Mar 4, 4:12 PM ESTWinter Weather AdvisoryIWX34 hr
Mar 18, 1:00 AM EDTFreezing Rain AdvisoryIWX13 hr
Mar 23, 4:45 AM EDTWinter Storm WatchIWX24 hr
Mar 24, 4:47 AM EDTWinter Weather AdvisoryIWX31 hr
Apr 7, 2:44 AM EDTSpecial Weather StatementIWX61 min
Apr 10, 10:06 AM EDTRiver Flood WatchIWX61 hr
Apr 11, 3:12 AM EDTSpecial Weather StatementIWX48 min
Apr 17, 1:23 PM EDTFlood WatchIWX46 hr
Apr 18, 3:57 AM EDTWind AdvisoryIWX16 hr
Apr 18, 9:31 AM EDTTornado Watch PDSSPC7 hr
Apr 18, 12:14 PM EDTMesoscale DiscussionSPC2 hr
Apr 18, 11:51 PM EDTRiver Flood WarningIWX10 days
Apr 24, 12:23 AM EDTAreal Flood WarningIWX12 hr
May 11, 3:47 PM EDTFreeze WatchIWX12 hr
May 11, 4:31 PM EDTSpecial Weather StatementIWX59 min
May 11, 5:31 PM EDTSpecial Weather StatementIWX59 min
May 12, 4:01 AM EDTFreeze WarningIWX28 hr
May 22, 6:16 PM EDTSpecial Weather StatementIWX29 min
May 24, 2:42 PM EDTFrost AdvisoryIWX17 hr
May 28, 9:20 PM EDTMesoscale DiscussionSPC115 min
May 28, 9:36 PM EDTSevere Thunderstorm WatchSPC3 hr
May 28, 11:46 PM EDTMesoscale DiscussionSPC89 min
May 29, 12:35 AM EDTSpecial Weather StatementIWX25 min
May 31, 7:19 PM EDTSevere Thunderstorm WatchSPC4 hr
May 31, 11:11 PM EDTTornado WatchSPC5 hr
May 31, 11:54 PM EDTAreal Flood AdvisoryIWX4 hr
Jun 1, 2:13 AM EDTMesoscale DiscussionSPC2 hr
Jun 1, 4:59 AM EDTRiver Flood WarningIWX5 days
Jun 1, 5:45 AM EDTAreal Flood AdvisoryIWX3 hr
Jun 12, 11:26 AM EDTMesoscale DiscussionSPC64 min
Jun 12, 12:02 PM EDTFlash Flood WatchIWX20 hr
Jun 12, 4:38 PM EDTMesoscale DiscussionSPC97 min
Jun 12, 5:00 PM EDTSevere Thunderstorm Watch PDSSPC9 hr
Jun 12, 6:56 PM EDTMesoscale DiscussionSPC94 min
Jun 12, 7:38 PM EDTSevere Thunderstorm WarningIWX52 min
Jun 12, 8:13 PM EDTSevere Thunderstorm WarningIWX47 min
Jun 12, 8:30 PM EDTTornado WarningIWX45 min
Jun 12, 9:47 PM EDTMesoscale DiscussionSPC88 min
Jun 12, 10:16 PM EDTSevere Thunderstorm WarningIWX44 min
Jun 13, 12:50 AM EDTMesoscale DiscussionSPC85 min
Jun 24, 7:14 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 24, 9:11 PM EDTMesoscale DiscussionSPC64 min
Jun 24, 9:12 PM EDTSpecial Weather StatementIWX33 min
Jun 24, 9:36 PM EDTSevere Thunderstorm WarningIWX24 min
Jun 25, 4:06 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 6:49 PM EDTMesoscale DiscussionSPC56 min
Jun 25, 9:33 PM EDTSevere Thunderstorm WarningIWX42 min
Jun 25, 10:18 PM EDTAreal Flood AdvisoryIWX4 hr
Jun 25, 10:20 PM EDTMesoscale DiscussionSPC85 min
Jun 26, 2:17 AM EDTAreal Flood AdvisoryIWX9 hr
Jun 26, 9:25 AM EDTFlash Flood WatchIWX10 hr
Jun 26, 6:34 PM EDTSpecial Weather StatementIWX41 min
Jun 27, 7:12 PM EDTMesoscale DiscussionSPC2 hr
Jun 28, 1:36 PM EDTMesoscale DiscussionSPC54 min
Jul 7, 1:35 PM EDTSpecial Weather StatementIWX40 min
Jul 7, 5:49 PM EDTSpecial Weather StatementIWX56 min
Jul 7, 6:18 PM EDTAreal Flood AdvisoryIWX3 hr
Jul 9, 2:33 PM EDTMesoscale DiscussionSPC87 min
Jul 10, 8:57 AM EDTMesoscale DiscussionSPC3 hr
Jul 10, 11:53 AM EDTMesoscale DiscussionSPC67 min
Jul 10, 12:31 PM EDTSevere Thunderstorm WatchSPC7 hr
Jul 10, 1:13 PM EDTSpecial Weather StatementIWX47 min
Jul 17, 3:46 PM EDTHeat AdvisoryIWX52 hr
Aug 2, 3:24 PM EDTMesoscale DiscussionSPC66 min
Aug 7, 8:52 AM EDTMesoscale DiscussionSPC113 min
Aug 7, 2:46 PM EDTMesoscale DiscussionSPC119 min
Aug 22, 1:10 PM EDTMesoscale DiscussionSPC3 hr
Sep 11, 4:21 PM EDTMesoscale DiscussionSPC114 min
Sep 11, 6:47 PM EDTSevere Thunderstorm WarningIWX28 min
Sep 30, 12:37 AM EDTDense Fog AdvisoryIWX9 hr
Oct 4, 2:10 PM EDTSpecial Weather StatementIWX20 min
Oct 4, 2:27 PM EDTSpecial Weather StatementIWX33 min
Oct 4, 2:47 PM EDTSpecial Weather StatementIWX43 min
Oct 5, 11:49 AM EDTFlash Flood WatchIWX28 hr
Oct 21, 4:28 AM EDTFreeze WatchIWX11 hr
Oct 21, 3:33 PM EDTFreeze WarningIWX17 hr
Nov 16, 3:31 PM ESTWind AdvisoryIWX13 hr
Nov 17, 4:08 AM ESTHigh Wind WarningIWX20 hr
Nov 17, 11:01 AM ESTMesoscale DiscussionSPC119 min
Nov 17, 11:20 AM ESTTornado Watch PDSSPC9 hr
Nov 17, 1:37 PM ESTSpecial Weather StatementIWX38 min
Nov 17, 2:13 PM ESTMesoscale DiscussionSPC77 min
Nov 17, 3:51 PM ESTMesoscale DiscussionSPC84 min
Nov 17, 3:57 PM ESTSevere Thunderstorm WarningIWX48 min
Dec 8, 6:18 PM ESTFreezing Rain AdvisoryIWX9 hr
Dec 12, 12:29 AM ESTWind Chill AdvisoryIWX11 hr
Dec 12, 7:26 PM ESTWinter Weather AdvisoryIWX48 hr
Dec 13, 11:38 AM ESTWinter Storm WarningIWX31 hr
Dec 17, 4:01 AM ESTWinter Weather AdvisoryIWX15 hr
Dec 19, 3:37 PM ESTFlood WatchIWX60 hr
Dec 20, 12:46 AM ESTDense Fog AdvisoryIWX19 hr
Dec 22, 4:57 AM ESTRiver Flood WarningIWX4 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 archive20122014

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.