Alert archive / Illinois / Vermilion County

Weather alerts in Vermilion County, Illinois, 2013

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

Vermilion County and its neighbors

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

Alerts
120
Warnings
30
Watches
20
Advisories
27
Busiest month
April34 alerts
Busiest day
April 18, 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.

2 of 2 tornado warnings covering Vermilion County in 2013 had a tornado report inside them; 11 of 11 tornado reports fell inside a warning, on average 16 minutes after it went out.

Vermilion County, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings220%11100%16 min
Severe thunderstorm warnings15660%1932%30 min
Flash flood warnings5260%1100%27 min

Each office's whole area, 2013

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Lincoln, IL: tornado warnings27967%3394%15 min
NWS Lincoln, IL: severe thunderstorm warnings1114559%21257%17 min
NWS Lincoln, IL: flash flood warnings642758%8291%283 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 12, 2:37 PM CSTWinter Weather AdvisoryILX19 hr
Jan 26, 2:59 PM CSTFreezing Rain AdvisoryILX24 hr
Jan 28, 2:02 PM CSTFlood WatchILX40 hr
Jan 28, 4:58 PM CSTDense Fog AdvisoryILX7 hr
Jan 29, 6:08 PM CSTMesoscale DiscussionSPC2 hr
Jan 31, 3:22 PM CSTWind Chill AdvisoryILX19 hr
Feb 10, 9:40 PM CSTWind AdvisoryILX17 hr
Feb 18, 2:55 AM CSTWind AdvisoryILX15 hr
Feb 20, 3:49 PM CSTWinter Weather AdvisoryILX43 hr
Feb 21, 7:46 PM CSTMesoscale DiscussionSPC4 hr
Mar 4, 4:01 PM CSTWinter Weather AdvisoryILX32 hr
Mar 22, 3:10 PM CDTWinter Storm WatchILX25 hr
Mar 23, 3:57 PM CDTWinter Storm WarningILX39 hr
Mar 24, 11:52 AM CDTMesoscale DiscussionSPC5 hr
Apr 10, 12:36 PM CDTMesoscale DiscussionSPC84 min
Apr 10, 12:53 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 2:27 PM CDTSpecial Weather StatementILX33 min
Apr 10, 2:59 PM CDTMesoscale DiscussionSPC61 min
Apr 10, 4:12 PM CDTFlash Flood WarningILX15 hr
Apr 10, 6:28 PM CDTSpecial Weather StatementILX62 min
Apr 10, 6:52 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 10, 8:00 PM CDTMesoscale DiscussionSPC2 hr
Apr 10, 10:37 PM CDTSpecial Weather StatementILX53 min
Apr 10, 10:40 PM CDTSevere Thunderstorm WarningILX35 min
Apr 10, 10:54 PM CDTSpecial Weather StatementILX36 min
Apr 10, 11:03 PM CDTSevere Thunderstorm WarningILX42 min
Apr 14, 3:47 AM CDTWind AdvisoryILX16 hr
Apr 16, 3:39 PM CDTFlash Flood WatchILX60 hr
Apr 16, 7:48 PM CDTSpecial Weather StatementILX57 min
Apr 16, 8:44 PM CDTMesoscale DiscussionSPC2 hr
Apr 17, 11:30 AM CDTRiver Flood WarningILX4 days
Apr 17, 3:04 PM CDTMesoscale DiscussionSPC56 min
Apr 17, 3:33 PM CDTTornado WatchSPC8 hr
Apr 17, 6:46 PM CDTMesoscale DiscussionSPC89 min
Apr 17, 8:21 PM CDTMesoscale DiscussionSPC84 min
Apr 18, 3:50 AM CDTWind AdvisoryILX7 hr
Apr 18, 7:25 AM CDTMesoscale DiscussionSPC95 min
Apr 18, 8:05 AM CDTSevere Thunderstorm WarningILX40 min
Apr 18, 8:31 AM CDTTornado Watch PDSSPC7 hr
Apr 18, 8:57 AM CDTSevere Thunderstorm WarningILX63 min
Apr 18, 2:18 PM CDTFlash Flood WarningILX18 hr
Apr 18, 4:05 PM CDTAreal Flood AdvisoryILX16 hr
Apr 18, 5:22 PM CDTSpecial Weather StatementILX53 min
Apr 18, 10:14 PM CDTFlash Flood WarningILX11 hr
Apr 19, 8:14 AM CDTAreal Flood WarningILX24 hr
Apr 19, 2:14 PM CDTFreeze WarningILX17 hr
Apr 20, 7:49 AM CDTAreal Flood WarningILX12 hr
Apr 25, 3:38 PM CDTFrost AdvisoryILX15 hr
May 12, 3:17 PM CDTFrost AdvisoryILX16 hr
May 20, 3:27 PM CDTMesoscale DiscussionSPC63 min
May 20, 10:25 PM CDTMesoscale DiscussionSPC65 min
May 20, 10:56 PM CDTTornado WatchSPC6 hr
May 27, 2:39 PM CDTSevere Thunderstorm WatchSPC5 hr
May 30, 3:48 AM CDTFlash Flood WatchILX63 hr
May 30, 3:35 PM CDTSevere Thunderstorm WarningILX25 min
May 30, 7:04 PM CDTMesoscale DiscussionSPC56 min
May 30, 7:38 PM CDTSevere Thunderstorm WatchSPC5 hr
May 30, 9:32 PM CDTSevere Thunderstorm WarningILX58 min
May 30, 10:03 PM CDTMesoscale DiscussionSPC87 min
May 31, 7:23 PM CDTTornado WatchSPC6 hr
May 31, 10:33 PM CDTSevere Thunderstorm WarningILX57 min
May 31, 10:52 PM CDTSevere Thunderstorm WarningILX53 min
Jun 9, 2:04 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 11, 1:41 PM CDTMesoscale DiscussionSPC64 min
Jun 12, 8:47 PM CDTMesoscale DiscussionSPC88 min
Jun 12, 11:50 PM CDTMesoscale DiscussionSPC85 min
Jun 22, 11:19 AM CDTSevere Thunderstorm WarningILX56 min
Jun 22, 11:38 AM CDTFlash Flood WarningILX4 hr
Jun 24, 6:14 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 24, 6:59 PM CDTSevere Thunderstorm WarningILX61 min
Jun 24, 8:11 PM CDTMesoscale DiscussionSPC64 min
Jun 25, 12:43 PM CDTMesoscale DiscussionSPC3 hr
Jun 25, 3:06 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 25, 5:49 PM CDTMesoscale DiscussionSPC56 min
Jun 25, 6:27 PM CDTSevere Thunderstorm WarningILX63 min
Jun 25, 9:20 PM CDTMesoscale DiscussionSPC85 min
Jun 25, 9:49 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 26, 12:34 AM CDTAreal Flood AdvisoryILX6 hr
Jun 26, 3:16 AM CDTFlash Flood WatchILX12 hr
Jul 10, 7:57 AM CDTMesoscale DiscussionSPC3 hr
Jul 10, 9:02 AM CDTSpecial Weather StatementILX28 min
Jul 10, 10:40 AM CDTAreal Flood AdvisoryILX6 hr
Jul 20, 8:48 AM CDTAreal Flood AdvisoryILX4 hr
Jul 21, 3:42 AM CDTDense Fog AdvisoryILX4 hr
Jul 31, 7:11 AM CDTDense Fog AdvisoryILX3 hr
Aug 2, 2:24 PM CDTMesoscale DiscussionSPC66 min
Aug 30, 9:44 PM CDTSpecial Weather StatementILX46 min
Aug 31, 2:24 PM CDTMesoscale DiscussionSPC2 hr
Aug 31, 3:43 PM CDTSevere Thunderstorm WatchSPC8 hr
Aug 31, 3:54 PM CDTSpecial Weather StatementILX66 min
Aug 31, 4:24 PM CDTSevere Thunderstorm WarningILX66 min
Aug 31, 5:21 PM CDTSpecial Weather StatementILX54 min
Aug 31, 5:32 PM CDTSpecial Weather StatementILX58 min
Aug 31, 6:04 PM CDTSevere Thunderstorm WarningILX41 min
Aug 31, 6:09 PM CDTMesoscale DiscussionSPC66 min
Sep 1, 6:02 AM CDTDense Fog AdvisoryILX3 hr
Oct 2, 4:53 AM CDTDense Fog AdvisoryILX5 hr
Oct 3, 5:08 PM CDTMesoscale DiscussionSPC97 min
Oct 5, 12:29 PM CDTMesoscale DiscussionSPC2 hr
Oct 5, 1:44 PM CDTSpecial Weather StatementILX61 min
Oct 5, 2:12 PM CDTSevere Thunderstorm WarningILX48 min
Oct 5, 2:54 PM CDTAreal Flood AdvisoryILX5 hr
Oct 5, 3:04 PM CDTFlash Flood WarningILX5 hr
Oct 21, 3:49 AM CDTFrost AdvisoryILX28 hr
Oct 22, 3:00 PM CDTFreeze WarningILX13 hr
Oct 23, 3:02 PM CDTFreeze WarningILX42 hr
Oct 30, 5:32 AM CDTDense Fog AdvisoryILX4 hr
Nov 16, 2:37 PM CSTWind AdvisoryILX27 hr
Nov 17, 2:50 AM CSTHigh Wind WarningILX15 hr
Nov 17, 8:40 AM CSTTornado Watch PDSSPC7 hr
Nov 17, 10:49 AM CSTMesoscale DiscussionSPC86 min
Nov 17, 11:57 AM CSTMesoscale DiscussionSPC93 min
Nov 17, 12:50 PM CSTTornado WarningILX40 min
Nov 17, 12:56 PM CSTSevere Thunderstorm WarningILX49 min
Nov 17, 12:58 PM CSTTornado WarningILX32 min
Nov 17, 1:13 PM CSTMesoscale DiscussionSPC77 min
Dec 3, 9:19 PM CSTDense Fog AdvisoryILX15 hr
Dec 8, 3:21 PM CSTFreezing Rain AdvisoryILX9 hr
Dec 12, 4:03 PM CSTWinter Weather AdvisoryILX44 hr
Dec 19, 3:54 AM CSTFlood WatchILX68 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.