Alert archive / Indiana / Grant County

Weather alerts in Grant County, Indiana, 2013

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

Grant County and its neighbors

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

Alerts
122
Warnings
27
Watches
22
Advisories
28
Busiest month
April29 alerts
Busiest day
April 10, 20139 alerts

Over time

By month

Warning verification

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

1 of 2 tornado warnings covering Grant County in 2013 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 20 minutes after it went out.

Grant County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%2100%20 min
Severe thunderstorm warnings9811%1392%29 min
Flash flood warnings4250%0

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 12, 10:16 PM ESTAreal Flood AdvisoryIWX12 hr
Jan 13, 7:18 AM ESTRiver Flood WarningIWX51 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 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
Feb 26, 8:03 AM ESTMesoscale DiscussionSPC4 hr
Mar 4, 4:14 AM ESTWinter Storm WatchIWX12 hr
Mar 4, 4:12 PM ESTWinter Storm WarningIWX36 hr
Mar 5, 2:36 PM ESTMesoscale DiscussionSPC4 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 Storm WarningIWX31 hr
Mar 24, 3:37 PM EDTMesoscale DiscussionSPC4 hr
Mar 24, 7:13 PM EDTMesoscale DiscussionSPC6 hr
Mar 25, 11:57 AM EDTWinter Weather AdvisoryIWX4 hr
Apr 7, 2:44 AM EDTSpecial Weather StatementIWX61 min
Apr 8, 7:18 PM EDTSpecial Weather StatementIWX27 min
Apr 8, 7:20 PM EDTMesoscale DiscussionSPC55 min
Apr 8, 11:03 PM EDTSpecial Weather StatementIWX27 min
Apr 8, 11:27 PM EDTSpecial Weather StatementIWX33 min
Apr 10, 9:10 AM EDTSpecial Weather StatementIWX50 min
Apr 10, 1:35 PM EDTSevere Thunderstorm WarningIWX40 min
Apr 10, 1:36 PM EDTMesoscale DiscussionSPC84 min
Apr 10, 1:53 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 3:59 PM EDTMesoscale DiscussionSPC61 min
Apr 10, 4:26 PM EDTSpecial Weather StatementIWX34 min
Apr 10, 5:04 PM EDTSpecial Weather StatementIWX26 min
Apr 10, 5:11 PM EDTAreal Flood AdvisoryIWX3 hr
Apr 10, 7:52 PM EDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 8:31 PM EDTAreal Flood AdvisoryIWX6 hr
Apr 10, 9:00 PM EDTMesoscale DiscussionSPC2 hr
Apr 11, 12:51 AM EDTMesoscale DiscussionSPC84 min
Apr 11, 1:39 AM EDTSpecial Weather StatementIWX51 min
Apr 11, 4:34 AM EDTFlood WatchIWX23 hr
Apr 17, 1:23 PM EDTFlood WatchIWX46 hr
Apr 18, 3:57 AM EDTWind AdvisoryIWX16 hr
Apr 18, 8:25 AM EDTMesoscale DiscussionSPC95 min
Apr 18, 9:31 AM EDTTornado Watch PDSSPC7 hr
Apr 18, 12:14 PM EDTMesoscale DiscussionSPC2 hr
Apr 18, 6:28 PM EDTAreal Flood AdvisoryIWX6 hr
Apr 18, 6:33 PM EDTMesoscale DiscussionSPC117 min
Apr 18, 9:50 PM EDTAreal Flood WarningIWX21 hr
Apr 18, 11:22 PM EDTRiver Flood WarningIWX26 hr
Apr 24, 12:23 AM EDTAreal Flood WarningIWX12 hr
May 11, 4:31 PM EDTSpecial Weather StatementIWX59 min
May 11, 5:31 PM EDTSpecial Weather StatementIWX59 min
May 12, 4:01 AM EDTFrost AdvisoryIWX28 hr
May 21, 12:15 AM EDTSevere Thunderstorm WatchSPC5 hr
May 31, 7:19 PM EDTSevere Thunderstorm WatchSPC4 hr
May 31, 11:11 PM EDTTornado WatchSPC5 hr
Jun 1, 1:27 AM EDTSevere Thunderstorm WarningIWX63 min
Jun 1, 2:13 AM EDTMesoscale DiscussionSPC2 hr
Jun 1, 2:20 AM EDTSevere Thunderstorm WarningIWX55 min
Jun 10, 1:47 AM EDTAreal Flood AdvisoryIWX4 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, 9:47 PM EDTMesoscale DiscussionSPC88 min
Jun 12, 10:45 PM EDTTornado WarningIWX30 min
Jun 12, 10:47 PM EDTFlash Flood WarningIWX6 hr
Jun 12, 11:00 PM EDTSevere Thunderstorm WarningIWX60 min
Jun 13, 12:50 AM EDTMesoscale DiscussionSPC85 min
Jun 13, 12:57 AM EDTAreal Flood AdvisoryIWX6 hr
Jun 13, 2:09 AM EDTFlash Flood WarningIWX6 hr
Jun 13, 5:00 AM EDTAreal Flood WarningIWX6 hr
Jun 24, 7:14 PM EDTSevere Thunderstorm WatchSPC4 hr
Jun 24, 9:11 PM EDTMesoscale DiscussionSPC64 min
Jun 25, 4:06 PM EDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 6:49 PM EDTMesoscale DiscussionSPC56 min
Jun 25, 10:20 PM EDTMesoscale DiscussionSPC85 min
Jun 26, 9:25 AM EDTFlash Flood WatchIWX10 hr
Jun 28, 1:36 PM EDTMesoscale DiscussionSPC54 min
Jun 28, 2:05 PM EDTSpecial Weather StatementIWX25 min
Jun 28, 2:33 PM EDTSpecial Weather StatementIWX42 min
Jun 30, 4:17 AM EDTAreal Flood AdvisoryIWX3 hr
Jun 30, 7:17 AM EDTAreal Flood AdvisoryIWX6 hr
Jul 2, 7:07 PM EDTSpecial Weather StatementIWX38 min
Jul 2, 9:41 PM EDTFlash Flood WarningIWX3 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, 1:19 PM EDTSevere Thunderstorm WarningIWX41 min
Jul 10, 1:23 PM EDTSevere Thunderstorm WarningIWX52 min
Jul 10, 1:53 PM EDTSevere Thunderstorm WarningIWX37 min
Jul 10, 1:58 PM EDTFlash Flood WarningIWX2 hr
Jul 17, 3:46 PM EDTHeat AdvisoryIWX52 hr
Aug 2, 3:24 PM EDTMesoscale DiscussionSPC66 min
Aug 3, 12:02 AM EDTSpecial Weather StatementIWX58 min
Aug 23, 2:51 AM EDTDense Fog AdvisoryIWX6 hr
Sep 30, 12:37 AM EDTDense Fog AdvisoryIWX9 hr
Oct 5, 4:18 PM EDTMesoscale DiscussionSPC117 min
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, 2:13 PM ESTMesoscale DiscussionSPC77 min
Nov 17, 3:14 PM ESTSevere Thunderstorm WarningIWX46 min
Nov 17, 3:33 PM ESTTornado WarningIWX42 min
Nov 17, 3:51 PM ESTMesoscale DiscussionSPC84 min
Nov 17, 4:27 PM ESTSevere Thunderstorm WarningIWX48 min
Dec 5, 3:26 PM ESTWinter Weather AdvisoryIWX29 hr
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 19, 3:37 PM ESTFlood WatchIWX60 hr
Dec 21, 5:55 PM ESTAreal Flood WarningIWX24 hr
Dec 22, 11:59 AM ESTRiver Flood WarningIWX46 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 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.