Alert archive / Missouri / Madison County

Weather alerts in Madison County, Missouri, 2010

124 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Madison County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts
124
Warnings
23
Watches
37
Advisories
23
Busiest month
July26 alerts
Busiest day
July 11, 20107 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 4 tornado warnings covering Madison County in 2010 had a tornado report inside them.

Madison County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings40100%0
Severe thunderstorm warnings7271%10%
Flash flood warnings30100%0

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS St. Louis, MO: tornado warnings941683%4384%33 min
NWS St. Louis, MO: severe thunderstorm warnings30112259%40462%23 min
NWS St. Louis, MO: flash flood warnings1124461%12273%122 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 5, 3:50 PM CSTWinter Storm WatchLSX12 hr
Jan 6, 4:16 AM CSTWinter Weather AdvisoryLSX37 hr
Jan 7, 4:16 AM CSTWind Chill AdvisoryLSX24 hr
Jan 7, 3:54 PM CSTWind Chill AdvisoryLSX43 hr
Jan 15, 3:42 PM CSTDense Fog AdvisoryLSX20 hr
Jan 16, 2:33 PM CSTDense Fog AdvisoryLSX21 hr
Jan 17, 2:12 PM CSTDense Fog AdvisoryLSX22 hr
Jan 23, 4:05 PM CSTFlash Flood WatchLSX8 hr
Jan 26, 3:52 PM CSTWinter Storm WatchLSX36 hr
Jan 28, 3:24 AM CSTWinter Weather AdvisoryLSX49 hr
Jan 28, 3:42 PM CSTWinter Storm WarningLSX24 hr
Feb 4, 4:08 AM CSTWinter Weather AdvisoryLSX44 hr
Feb 6, 4:18 AM CSTWinter Storm WatchLSX36 hr
Feb 7, 3:55 PM CSTWinter Weather AdvisoryLSX45 hr
Feb 12, 3:29 PM CSTWinter Weather AdvisoryLSX63 hr
Mar 10, 7:48 PM CSTTornado WatchSPC6 hr
Mar 10, 10:47 PM CSTSevere Thunderstorm WarningLSX28 min
Mar 10, 11:08 PM CSTMesoscale DiscussionSPC97 min
Mar 22, 1:11 AM CDTFlash Flood WarningLSX10 hr
Mar 30, 2:47 PM CDTFire Weather WatchLSX20 hr
Mar 31, 10:23 AM CDTRed Flag WarningLSX8 hr
Apr 5, 1:56 AM CDTMesoscale DiscussionSPC94 min
Apr 5, 12:28 PM CDTMesoscale DiscussionSPC62 min
Apr 7, 1:24 PM CDTTornado WatchSPC8 hr
Apr 7, 4:01 PM CDTSevere Thunderstorm WarningLSX44 min
Apr 8, 4:16 AM CDTFrost AdvisoryLSX29 hr
Apr 17, 3:34 PM CDTFrost AdvisoryLSX16 hr
Apr 24, 11:08 AM CDTMesoscale DiscussionSPC67 min
Apr 24, 11:31 AM CDTTornado Watch PDSSPC8 hr
Apr 24, 5:48 PM CDTMesoscale DiscussionSPC57 min
Apr 30, 2:40 PM CDTTornado WatchSPC6 hr
Apr 30, 7:12 PM CDTMesoscale DiscussionSPC63 min
Apr 30, 8:36 PM CDTMesoscale DiscussionSPC54 min
Apr 30, 9:03 PM CDTTornado WatchSPC6 hr
Apr 30, 9:10 PM CDTTornado WarningLSX50 min
May 1, 3:54 AM CDTFlash Flood WatchLSX23 hr
May 1, 9:45 PM CDTMesoscale DiscussionSPC30 min
May 1, 9:51 PM CDTSevere Thunderstorm WarningLSX39 min
May 1, 10:14 PM CDTTornado WatchSPC7 hr
May 2, 2:09 AM CDTMesoscale DiscussionSPC2 hr
May 3, 1:45 PM CDTSevere Thunderstorm WatchSPC6 hr
May 3, 5:12 PM CDTMesoscale DiscussionSPC93 min
May 13, 7:13 AM CDTMesoscale DiscussionSPC32 min
May 13, 7:38 AM CDTSevere Thunderstorm WatchSPC2 hr
May 13, 5:41 PM CDTMesoscale DiscussionSPC94 min
May 18, 3:08 PM CDTFlash Flood WatchLSX60 hr
Jun 2, 12:56 PM CDTMesoscale DiscussionSPC94 min
Jun 11, 4:01 AM CDTFlash Flood WatchLSX12 hr
Jun 14, 1:45 PM CDTMesoscale DiscussionSPC60 min
Jun 15, 11:55 AM CDTMesoscale DiscussionSPC95 min
Jun 15, 12:29 PM CDTSevere Thunderstorm WatchSPC9 hr
Jun 15, 2:42 PM CDTMesoscale DiscussionSPC2 hr
Jun 17, 2:48 AM CDTSevere Thunderstorm WarningLSX27 min
Jun 17, 9:37 AM CDTMesoscale DiscussionSPC113 min
Jun 18, 4:14 AM CDTHeat AdvisoryLSX6 days
Jun 18, 4:23 PM CDTSevere Thunderstorm WarningLSX40 min
Jun 19, 2:33 AM CDTMesoscale DiscussionSPC57 min
Jun 19, 5:55 PM CDTMesoscale DiscussionSPC95 min
Jun 27, 5:04 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 27, 7:26 PM CDTMesoscale DiscussionSPC94 min
Jul 11, 9:40 AM CDTMesoscale DiscussionSPC95 min
Jul 11, 10:07 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 11, 3:19 PM CDTMesoscale DiscussionSPC56 min
Jul 11, 3:37 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 11, 6:03 PM CDTSevere Thunderstorm WarningLSX27 min
Jul 11, 6:04 PM CDTMesoscale DiscussionSPC56 min
Jul 11, 6:49 PM CDTAreal Flood AdvisoryLSX6 hr
Jul 12, 3:55 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 12, 7:56 PM CDTMesoscale DiscussionSPC64 min
Jul 12, 8:50 PM CDTFlash Flood WarningLSX5 hr
Jul 13, 2:35 PM CDTHeat AdvisoryLSX52 hr
Jul 15, 4:48 PM CDTMesoscale DiscussionSPC87 min
Jul 16, 4:06 PM CDTHeat AdvisoryLSX38 hr
Jul 18, 6:22 AM CDTSevere Thunderstorm WatchSPC5 hr
Jul 18, 10:43 AM CDTTornado WarningLSX25 min
Jul 19, 10:05 AM CDTMesoscale DiscussionSPC85 min
Jul 19, 5:24 PM CDTMesoscale DiscussionSPC96 min
Jul 20, 7:33 AM CDTMesoscale DiscussionSPC27 min
Jul 20, 7:36 AM CDTSevere Thunderstorm WatchSPC4 hr
Jul 20, 10:59 AM CDTMesoscale DiscussionSPC61 min
Jul 21, 3:39 PM CDTHeat AdvisoryLSX3 days
Jul 26, 9:57 PM CDTFlash Flood WarningLSX6 hr
Jul 30, 1:49 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 30, 4:45 PM CDTAreal Flood AdvisoryLSX4 hr
Jul 30, 5:01 PM CDTMesoscale DiscussionSPC89 min
Jul 30, 6:28 PM CDTMesoscale DiscussionSPC62 min
Aug 1, 3:13 PM CDTHeat AdvisoryLSX3 days
Aug 3, 4:43 AM CDTExcessive Heat WarningLSX39 hr
Aug 6, 2:56 PM CDTExcessive Heat WatchLSX49 hr
Aug 8, 3:55 AM CDTExcessive Heat WarningLSX7 days
Aug 12, 12:51 PM CDTMesoscale DiscussionSPC54 min
Aug 15, 3:51 AM CDTMesoscale DiscussionSPC84 min
Sep 2, 4:43 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 2, 7:12 PM CDTMesoscale DiscussionSPC2 hr
Sep 2, 8:47 PM CDTMesoscale DiscussionSPC58 min
Sep 5, 3:26 PM CDTFire Weather WatchLSX18 hr
Sep 6, 9:02 AM CDTRed Flag WarningLSX10 hr
Sep 8, 3:48 PM CDTFlash Flood WatchLSX27 hr
Oct 4, 4:16 AM CDTFrost AdvisoryLSX28 hr
Oct 24, 3:38 PM CDTMesoscale DiscussionSPC2 hr
Oct 25, 9:36 PM CDTMesoscale DiscussionSPC24 min
Oct 25, 10:03 PM CDTTornado WatchSPC9 hr
Oct 26, 3:38 AM CDTMesoscale DiscussionSPC2 hr
Oct 26, 4:12 AM CDTSevere Thunderstorm WarningLSX48 min
Oct 26, 7:30 PM CDTFire Weather WatchLSX9 hr
Oct 27, 4:47 AM CDTRed Flag WarningLSX12 hr
Oct 27, 3:53 PM CDTFreeze WatchLSX12 hr
Oct 28, 3:47 AM CDTFreeze WarningLSX29 hr
Oct 29, 2:43 AM CDTFire Weather WatchLSX13 hr
Oct 29, 3:58 PM CDTRed Flag WarningLSX26 hr
Nov 6, 3:47 PM CDTFire Weather WatchLSX25 hr
Nov 7, 3:57 PM CSTRed Flag WarningLSX26 hr
Nov 22, 4:50 PM CSTTornado WatchSPC7 hr
Nov 24, 3:48 PM CSTFlash Flood WatchLSX12 hr
Nov 24, 8:23 PM CSTTornado WatchSPC8 hr
Nov 25, 2:34 AM CSTMesoscale DiscussionSPC56 min
Dec 11, 4:09 PM CSTWind AdvisoryLSX29 hr
Dec 15, 4:00 AM CSTWinter Weather AdvisoryLSX32 hr
Dec 23, 12:07 PM CSTWinter Weather AdvisoryLSX40 hr
Dec 31, 4:56 AM CSTMesoscale DiscussionSPC2 hr
Dec 31, 7:29 AM CSTTornado WatchSPC8 hr
Dec 31, 11:04 AM CSTMesoscale DiscussionSPC56 min
Dec 31, 1:11 PM CSTTornado WarningLSX49 min
Dec 31, 2:00 PM CSTTornado WarningLSX60 min

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 archive20092011

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.