Alert archive / Missouri / Pike County

Weather alerts in Pike County, Missouri, 2009

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

Pike County and its neighbors

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

Alerts
117
Warnings
44
Watches
27
Advisories
22
Busiest month
May26 alerts
Busiest day
May 15, 200911 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 3 tornado warnings covering Pike County in 2009 had a tornado report inside them.

Pike County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings30100%0
Severe thunderstorm warnings15753%450%34 min
Flash flood warnings3233%1100%331 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS St. Louis, MO: tornado warnings621281%3080%19 min
NWS St. Louis, MO: severe thunderstorm warnings2148461%31659%20 min
NWS St. Louis, MO: flash flood warnings974851%13878%120 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, 6:07 PM CSTDense Fog AdvisoryLSX9 hr
Jan 12, 3:12 PM CSTWind AdvisoryLSX9 hr
Jan 14, 3:42 AM CSTWind Chill AdvisoryLSX39 hr
Jan 15, 9:29 PM CSTWind Chill AdvisoryLSX13 hr
Jan 26, 4:05 AM CSTWinter Weather AdvisoryLSX44 hr
Feb 9, 4:01 PM CSTFlash Flood WatchLSX44 hr
Feb 26, 6:57 AM CSTMesoscale DiscussionSPC93 min
Feb 26, 9:11 AM CSTSevere Thunderstorm WarningLSX28 min
Feb 26, 9:26 AM CSTMesoscale DiscussionSPC2 hr
Feb 26, 5:19 PM CSTSevere Thunderstorm WatchSPC7 hr
Mar 5, 10:17 AM CSTWind AdvisoryLSX8 hr
Mar 8, 6:32 AM CDTTornado WatchSPC7 hr
Mar 8, 12:16 PM CDTWind AdvisoryLSX7 hr
Mar 9, 1:45 PM CDTRiver Flood WarningLSX9 days
Mar 9, 1:45 PM CDTRiver Flood WarningLSX10 days
Mar 23, 3:15 AM CDTWind AdvisoryLSX17 hr
Mar 26, 3:34 PM CDTWinter Storm WatchLSX36 hr
Mar 28, 3:31 AM CDTWinter Weather AdvisoryLSX24 hr
Mar 29, 6:08 AM CDTRiver Flood WarningLSX4 days
Mar 29, 6:08 AM CDTRiver Flood WarningLSX5 days
Apr 10, 9:44 PM CDTRiver Flood WarningLSX23 hr
Apr 27, 5:47 PM CDTAreal Flood AdvisoryLSX6 hr
Apr 27, 10:44 PM CDTAreal Flood AdvisoryLSX8 hr
Apr 28, 1:37 PM CDTRiver Flood WarningLSX13 days
Apr 29, 3:53 AM CDTFlash Flood WatchLSX36 hr
Apr 30, 6:59 AM CDTAreal Flood WarningLSX5 hr
Apr 30, 11:30 AM CDTAreal Flood WarningLSX6 hr
Apr 30, 2:40 PM CDTRiver Flood WarningLSX10 days
May 7, 5:42 PM CDTMesoscale DiscussionSPC2 hr
May 7, 6:14 PM CDTSevere Thunderstorm WatchSPC8 hr
May 13, 3:44 AM CDTSevere Thunderstorm WarningLSX46 min
May 13, 4:18 AM CDTSevere Thunderstorm WarningLSX42 min
May 13, 9:27 AM CDTMesoscale DiscussionSPC63 min
May 13, 1:52 PM CDTMesoscale DiscussionSPC23 min
May 13, 2:39 PM CDTTornado WatchSPC7 hr
May 13, 5:47 PM CDTMesoscale DiscussionSPC88 min
May 13, 7:05 PM CDTMesoscale DiscussionSPC85 min
May 13, 9:37 PM CDTSevere Thunderstorm WarningLSX38 min
May 13, 9:56 PM CDTSevere Thunderstorm WatchSPC6 hr
May 14, 3:51 PM CDTFlash Flood WatchLSX32 hr
May 15, 12:13 PM CDTRiver Flood WarningLSX7 days
May 15, 12:13 PM CDTRiver Flood WarningLSX7 days
May 15, 12:50 PM CDTTornado WatchSPC7 hr
May 15, 3:43 PM CDTMesoscale DiscussionSPC62 min
May 15, 5:03 PM CDTTornado WarningLSX42 min
May 15, 5:12 PM CDTFlash Flood WarningLSX6 hr
May 15, 5:12 PM CDTSevere Thunderstorm WarningLSX63 min
May 15, 5:31 PM CDTMesoscale DiscussionSPC119 min
May 15, 5:44 PM CDTTornado WarningLSX31 min
May 15, 6:06 PM CDTTornado WarningLSX39 min
May 15, 6:09 PM CDTSevere Thunderstorm WarningLSX51 min
May 15, 11:00 PM CDTAreal Flood WarningLSX9 hr
May 16, 8:14 AM CDTAreal Flood WarningLSX7 hr
May 29, 3:17 PM CDTMesoscale DiscussionSPC88 min
Jun 2, 11:58 AM CDTMesoscale DiscussionSPC92 min
Jun 2, 12:27 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 2, 6:22 PM CDTMesoscale DiscussionSPC83 min
Jun 9, 4:00 PM CDTFlash Flood WatchLSX12 hr
Jun 15, 3:42 PM CDTFlash Flood WatchLSX20 hr
Jun 15, 11:18 PM CDTMesoscale DiscussionSPC87 min
Jun 16, 12:41 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 17, 6:42 PM CDTMesoscale DiscussionSPC2 hr
Jun 18, 1:01 AM CDTMesoscale DiscussionSPC89 min
Jun 19, 2:24 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 19, 3:06 PM CDTSevere Thunderstorm WarningLSX39 min
Jun 19, 3:39 PM CDTSevere Thunderstorm WarningLSX51 min
Jun 19, 3:45 PM CDTSevere Thunderstorm WarningLSX45 min
Jun 19, 7:59 PM CDTMesoscale DiscussionSPC91 min
Jun 21, 2:24 PM CDTHeat AdvisoryLSX6 days
Jun 23, 5:32 PM CDTMesoscale DiscussionSPC58 min
Jun 23, 5:52 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 23, 8:07 PM CDTSevere Thunderstorm WarningLSX53 min
Jun 23, 9:21 PM CDTMesoscale DiscussionSPC54 min
Jun 24, 6:10 AM CDTRiver Flood WarningLSX3 days
Jun 25, 9:17 PM CDTRiver Flood WarningLSX17 hr
Jun 27, 5:54 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 27, 7:39 PM CDTMesoscale DiscussionSPC2 hr
Jun 27, 10:27 PM CDTSevere Thunderstorm WarningLSX48 min
Jun 27, 10:55 PM CDTSevere Thunderstorm WarningLSX50 min
Jul 3, 9:15 PM CDTFlash Flood WatchLSX7 hr
Jul 9, 11:54 AM CDTMesoscale DiscussionSPC96 min
Jul 25, 4:41 AM CDTSevere Thunderstorm WarningLSX49 min
Jul 28, 2:10 PM CDTSevere Thunderstorm WarningLSX50 min
Aug 3, 3:52 PM CDTFlash Flood WatchLSX17 hr
Aug 3, 4:06 PM CDTMesoscale DiscussionSPC84 min
Aug 4, 4:06 AM CDTSevere Thunderstorm WatchSPC5 hr
Aug 4, 6:24 AM CDTSevere Thunderstorm WarningLSX51 min
Aug 4, 7:11 AM CDTMesoscale DiscussionSPC94 min
Aug 7, 4:18 AM CDTHeat AdvisoryLSX63 hr
Aug 17, 4:09 AM CDTFlash Flood WatchLSX11 hr
Aug 19, 11:51 AM CDTMesoscale DiscussionSPC114 min
Aug 19, 12:49 PM CDTTornado WatchSPC6 hr
Aug 19, 3:20 PM CDTFlash Flood WatchLSX13 hr
Sep 6, 9:04 PM CDTDense Fog AdvisoryLSX12 hr
Sep 10, 8:50 PM CDTDense Fog AdvisoryLSX12 hr
Sep 21, 4:07 AM CDTDense Fog AdvisoryLSX5 hr
Sep 26, 1:42 PM CDTMesoscale DiscussionSPC93 min
Oct 7, 4:18 AM CDTFlash Flood WatchLSX47 hr
Oct 8, 6:04 PM CDTAreal Flood WarningLSX18 hr
Oct 9, 4:07 PM CDTFrost AdvisoryLSX16 hr
Oct 10, 3:55 AM CDTFreeze WarningLSX23 hr
Oct 17, 4:22 AM CDTFrost AdvisoryLSX29 hr
Oct 17, 3:31 PM CDTFreeze WarningLSX17 hr
Oct 28, 3:58 PM CDTFlash Flood WatchLSX47 hr
Oct 29, 4:19 PM CDTFlash Flood WarningLSX6 hr
Oct 29, 9:39 PM CDTFlash Flood WarningLSX9 hr
Oct 30, 2:10 AM CDTRiver Flood WarningLSX8 days
Oct 30, 2:10 AM CDTRiver Flood WarningLSX9 days
Oct 30, 6:25 AM CDTAreal Flood WarningLSX12 hr
Nov 4, 3:29 PM CSTFreeze WarningLSX17 hr
Nov 15, 2:02 PM CSTFlood WatchLSX37 hr
Nov 16, 7:27 PM CSTAreal Flood AdvisoryLSX7 hr
Nov 17, 2:03 PM CSTRiver Flood WarningLSX70 hr
Dec 8, 2:48 PM CSTWind AdvisoryLSX25 hr
Dec 22, 3:39 PM CSTFlood WatchLSX61 hr
Dec 23, 11:31 PM CSTAreal Flood AdvisoryLSX6 hr
Dec 24, 5:41 AM CSTAreal Flood AdvisoryLSX6 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.