Alert archive / Illinois / Cumberland County

Weather alerts in Cumberland County, Illinois, 2009

118 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Cumberland County and its neighbors

Each county as a circle sized by its count in 2009. Tap one for its archive.

Alerts
118
Warnings
27
Watches
21
Advisories
33
Busiest month
May30 alerts
Busiest day
May 14, 20099 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 Cumberland County in 2009 had a tornado report inside them.

Cumberland County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings2150%0
Severe thunderstorm warnings16944%863%19 min
Flash flood warnings4250%1100%140 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Lincoln, IL: tornado warnings441077%2665%15 min
NWS Lincoln, IL: severe thunderstorm warnings1769844%35174%24 min
NWS Lincoln, IL: flash flood warnings371365%5155%100 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 3, 8:40 PM CSTDense Fog AdvisoryILX9 hr
Jan 5, 3:12 PM CSTWinter Weather AdvisoryILX20 hr
Jan 13, 2:53 PM CSTWind Chill AdvisoryILX68 hr
Jan 26, 3:35 AM CSTWinter Weather AdvisoryILX54 hr
Jan 27, 6:25 PM CSTMesoscale DiscussionSPC6 hr
Feb 10, 10:33 AM CSTFlood WatchILX29 hr
Feb 10, 12:36 PM CSTWind AdvisoryILX32 hr
Feb 11, 6:15 AM CSTAreal Flood AdvisoryILX14 hr
Feb 26, 7:42 PM CSTMesoscale DiscussionSPC93 min
Mar 5, 10:32 AM CSTWind AdvisoryILX7 hr
Mar 8, 9:26 AM CDTMesoscale DiscussionSPC64 min
Mar 8, 9:31 AM CDTWind AdvisoryILX11 hr
Mar 8, 10:39 AM CDTTornado WatchSPC7 hr
Mar 8, 11:35 AM CDTMesoscale DiscussionSPC115 min
Mar 10, 3:15 PM CDTMesoscale DiscussionSPC2 hr
Mar 10, 3:52 PM CDTWind AdvisoryILX14 hr
Mar 10, 7:31 PM CDTMesoscale DiscussionSPC119 min
Mar 18, 2:22 PM CDTMesoscale DiscussionSPC113 min
Mar 23, 3:30 PM CDTWind AdvisoryILX24 hr
Mar 24, 3:19 PM CDTHigh Wind WarningILX5 hr
Apr 5, 10:50 AM CDTMesoscale DiscussionSPC115 min
Apr 6, 2:53 PM CDTFreeze WatchILX22 hr
Apr 6, 2:53 PM CDTFreeze WarningILX17 hr
Apr 7, 1:04 PM CDTFreeze WarningILX20 hr
Apr 26, 1:29 PM CDTWind AdvisoryILX6 hr
Apr 27, 1:57 AM CDTWind AdvisoryILX12 hr
May 7, 1:13 AM CDTDense Fog AdvisoryILX8 hr
May 7, 5:56 PM CDTMesoscale DiscussionSPC64 min
May 7, 6:14 PM CDTSevere Thunderstorm WatchSPC8 hr
May 7, 8:15 PM CDTSevere Thunderstorm WarningILX45 min
May 7, 11:46 PM CDTMesoscale DiscussionSPC89 min
May 13, 9:27 AM CDTMesoscale DiscussionSPC63 min
May 13, 10:26 AM CDTAreal Flood AdvisoryILX4 hr
May 13, 2:44 PM CDTFlood WatchILX14 hr
May 13, 3:00 PM CDTTornado WatchSPC5 hr
May 13, 9:56 PM CDTSevere Thunderstorm WatchSPC6 hr
May 13, 11:27 PM CDTMesoscale DiscussionSPC93 min
May 14, 12:07 AM CDTSevere Thunderstorm WarningILX38 min
May 14, 12:19 AM CDTTornado WarningILX56 min
May 14, 12:44 AM CDTSevere Thunderstorm WarningILX61 min
May 14, 1:00 AM CDTFlash Flood WarningILX6 hr
May 14, 1:18 AM CDTSevere Thunderstorm WarningILX57 min
May 14, 1:41 AM CDTFlash Flood WarningILX5 hr
May 14, 7:36 AM CDTAreal Flood WarningILX5 hr
May 15, 2:05 PM CDTMesoscale DiscussionSPC25 min
May 15, 5:31 PM CDTMesoscale DiscussionSPC119 min
May 15, 8:14 PM CDTMesoscale DiscussionSPC2 hr
May 15, 8:18 PM CDTFlash Flood WarningILX6 hr
May 15, 8:48 PM CDTSevere Thunderstorm WarningILX42 min
May 16, 1:56 AM CDTAreal Flood WarningILX186 days
May 25, 11:58 AM CDTAreal Flood AdvisoryILX6 hr
May 25, 12:32 PM CDTMesoscale DiscussionSPC88 min
May 30, 2:44 PM CDTMesoscale DiscussionSPC91 min
May 30, 3:49 PM CDTSevere Thunderstorm WatchSPC11 hr
May 30, 6:01 PM CDTMesoscale DiscussionSPC59 min
May 30, 8:53 PM CDTMesoscale DiscussionSPC67 min
Jun 2, 11:58 AM CDTMesoscale DiscussionSPC92 min
Jun 2, 12:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 3:47 PM CDTMesoscale DiscussionSPC88 min
Jun 2, 6:22 PM CDTMesoscale DiscussionSPC83 min
Jun 8, 8:49 AM CDTMesoscale DiscussionSPC86 min
Jun 8, 4:33 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 10, 3:13 PM CDTMesoscale DiscussionSPC92 min
Jun 10, 7:46 PM CDTTornado WatchSPC6 hr
Jun 10, 8:58 PM CDTMesoscale DiscussionSPC62 min
Jun 18, 4:12 AM CDTSevere Thunderstorm WatchSPC5 hr
Jun 18, 6:09 AM CDTMesoscale DiscussionSPC2 hr
Jun 18, 6:51 AM CDTSevere Thunderstorm WarningILX39 min
Jun 18, 7:19 AM CDTSevere Thunderstorm WarningILX56 min
Jun 19, 9:50 AM CDTHeat AdvisoryILX9 hr
Jun 19, 2:24 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 19, 6:42 PM CDTSevere Thunderstorm WarningILX48 min
Jun 19, 7:59 PM CDTMesoscale DiscussionSPC91 min
Jun 19, 9:45 PM CDTMesoscale DiscussionSPC30 min
Jun 19, 11:51 PM CDTAreal Flood AdvisoryILX5 hr
Jun 21, 2:23 PM CDTMesoscale DiscussionSPC97 min
Jun 21, 4:08 PM CDTTornado WarningILX52 min
Jun 22, 1:54 AM CDTHeat AdvisoryILX65 hr
Jun 24, 4:31 PM CDTAreal Flood AdvisoryILX6 hr
Jun 25, 10:38 AM CDTHeat AdvisoryILX8 hr
Jun 26, 1:52 AM CDTHeat AdvisoryILX17 hr
Jul 8, 3:29 PM CDTSpecial Weather StatementILX61 min
Jul 8, 3:37 PM CDTAreal Flood AdvisoryILX4 hr
Jul 8, 3:42 PM CDTMesoscale DiscussionSPC93 min
Jul 15, 2:33 AM CDTMesoscale DiscussionSPC2 hr
Jul 24, 11:46 PM CDTMesoscale DiscussionSPC89 min
Jul 25, 12:56 AM CDTSevere Thunderstorm WarningILX64 min
Jul 25, 1:26 AM CDTSevere Thunderstorm WatchSPC4 hr
Jul 25, 1:32 AM CDTSevere Thunderstorm WarningILX73 min
Jul 25, 7:04 AM CDTSevere Thunderstorm WarningILX41 min
Aug 4, 7:39 AM CDTSevere Thunderstorm WatchSPC4 hr
Aug 4, 9:34 AM CDTSevere Thunderstorm WarningILX26 min
Aug 4, 9:57 AM CDTSevere Thunderstorm WarningILX63 min
Aug 8, 3:10 AM CDTHeat AdvisoryILX40 hr
Aug 19, 11:51 AM CDTMesoscale DiscussionSPC114 min
Aug 19, 3:19 PM CDTMesoscale DiscussionSPC86 min
Aug 19, 5:11 PM CDTTornado WatchSPC5 hr
Aug 19, 5:14 PM CDTSevere Thunderstorm WarningILX46 min
Aug 19, 5:48 PM CDTSevere Thunderstorm WarningILX57 min
Aug 19, 6:00 PM CDTSevere Thunderstorm WarningILX75 min
Aug 19, 7:28 PM CDTFlash Flood WarningILX3 hr
Aug 19, 8:56 PM CDTFlash Flood WatchILX10 hr
Sep 6, 11:38 PM CDTDense Fog AdvisoryILX9 hr
Sep 9, 4:45 AM CDTDense Fog AdvisoryILX6 hr
Sep 10, 2:39 AM CDTDense Fog AdvisoryILX7 hr
Sep 10, 8:43 PM CDTDense Fog AdvisoryILX11 hr
Sep 25, 8:51 PM CDTDense Fog AdvisoryILX13 hr
Sep 26, 1:42 PM CDTMesoscale DiscussionSPC93 min
Sep 27, 8:22 PM CDTTornado WatchSPC3 hr
Oct 7, 3:43 AM CDTFlash Flood WatchILX57 hr
Oct 8, 5:26 PM CDTMesoscale DiscussionSPC2 hr
Oct 10, 3:12 PM CDTFrost AdvisoryILX18 hr
Oct 17, 3:23 AM CDTFrost AdvisoryILX30 hr
Oct 28, 3:21 PM CDTFlash Flood WatchILX4 days
Nov 20, 5:39 AM CSTDense Fog AdvisoryILX3 hr
Dec 8, 2:18 PM CSTWind AdvisoryILX28 hr
Dec 22, 3:10 PM CSTFlood WatchILX67 hr
Dec 27, 3:14 AM CSTWinter Weather AdvisoryILX12 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 archive20082010

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.