Alert archive / Iowa / Wapello County

Weather alerts in Wapello County, Iowa, 2014

128 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Wapello County and its neighbors

Each county as a circle sized by its count in 2014. Tap one for its archive.

Alerts
128
Warnings
30
Watches
26
Advisories
31
Busiest month
May25 alerts
Busiest day
May 11, 201413 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 2 tornado warnings covering Wapello County in 2014 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Wapello County, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%10%
Severe thunderstorm warnings15753%1292%21 min
Flash flood warnings2150%0

Each office's whole area, 2014

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Des Moines, IA: tornado warnings571574%4648%12 min
NWS Des Moines, IA: severe thunderstorm warnings30114950%48785%25 min
NWS Des Moines, IA: flash flood warnings622953%6984%111 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 1, 3:55 AM CSTWinter Weather AdvisoryDMX14 hr
Jan 1, 3:26 PM CSTWind Chill AdvisoryDMX21 hr
Jan 2, 4:16 PM CSTWind Chill AdvisoryDMX17 hr
Jan 3, 3:36 PM CSTWind Chill WatchDMX13 hr
Jan 4, 4:14 AM CSTWind Chill WarningDMX72 hr
Jan 6, 3:39 PM CSTWind Chill AdvisoryDMX17 hr
Jan 9, 4:08 PM CSTFreezing Rain AdvisoryDMX29 hr
Jan 10, 7:51 PM CSTDense Fog AdvisoryDMX4 hr
Jan 13, 3:07 PM CSTWind AdvisoryDMX27 hr
Jan 15, 3:51 PM CSTWind AdvisoryDMX29 hr
Jan 16, 4:36 PM CSTBlizzard WarningDMX4 hr
Jan 20, 3:42 AM CSTWind Chill AdvisoryDMX32 hr
Jan 22, 4:07 AM CSTWind Chill AdvisoryDMX44 hr
Jan 24, 3:30 PM CSTBlizzard WatchDMX24 hr
Jan 25, 3:35 PM CSTWind AdvisoryDMX32 hr
Jan 26, 4:45 AM CSTWind Chill AdvisoryDMX31 hr
Jan 30, 3:33 PM CSTWinter Storm WatchDMX12 hr
Jan 31, 3:53 AM CSTWinter Weather AdvisoryDMX27 hr
Feb 2, 3:30 PM CSTWinter Storm WatchDMX24 hr
Feb 3, 3:45 PM CSTWinter Storm WarningDMX41 hr
Feb 5, 3:18 PM CSTWind Chill AdvisoryDMX21 hr
Feb 6, 3:33 PM CSTWind Chill AdvisoryDMX17 hr
Feb 9, 3:40 AM CSTWind Chill AdvisoryDMX31 hr
Feb 16, 4:52 AM CSTWinter Weather AdvisoryDMX31 hr
Feb 20, 4:49 AM CSTWind AdvisoryDMX23 hr
Feb 20, 10:20 AM CSTMesoscale DiscussionSPC85 min
Feb 28, 4:26 PM CSTWind Chill AdvisoryDMX63 hr
Feb 28, 4:26 PM CSTWinter Weather AdvisoryDMX35 hr
Mar 31, 6:43 PM CDTMesoscale DiscussionSPC3 hr
Apr 3, 1:05 AM CDTMesoscale DiscussionSPC55 min
Apr 9, 3:56 AM CDTRed Flag WarningDMX15 hr
Apr 12, 6:26 PM CDTSevere Thunderstorm WatchSPC8 hr
Apr 12, 11:20 PM CDTSevere Thunderstorm WarningDMX55 min
Apr 12, 11:26 PM CDTMesoscale DiscussionSPC64 min
Apr 13, 7:41 AM CDTMesoscale DiscussionSPC2 hr
Apr 13, 3:37 PM CDTFlood WatchDMX6 hr
Apr 15, 3:44 PM CDTFire Weather WatchDMX12 hr
Apr 16, 4:13 AM CDTRed Flag WarningDMX14 hr
Apr 16, 4:21 AM CDTWind AdvisoryDMX14 hr
Apr 27, 1:59 PM CDTMesoscale DiscussionSPC61 min
Apr 27, 2:13 PM CDTSevere Thunderstorm WatchSPC7 hr
Apr 27, 2:27 PM CDTSpecial Weather StatementDMX63 min
Apr 27, 2:59 PM CDTSevere Thunderstorm WarningDMX61 min
Apr 28, 12:54 PM CDTMesoscale DiscussionSPC2 hr
Apr 28, 1:11 PM CDTTornado WatchSPC7 hr
Apr 28, 3:38 PM CDTMesoscale DiscussionSPC2 hr
May 8, 8:34 PM CDTMesoscale DiscussionSPC86 min
May 11, 9:16 AM CDTMesoscale DiscussionSPC89 min
May 11, 10:47 AM CDTMesoscale DiscussionSPC118 min
May 11, 11:53 AM CDTTornado WatchSPC7 hr
May 11, 12:51 PM CDTMesoscale DiscussionSPC54 min
May 11, 1:55 PM CDTSevere Thunderstorm WarningDMX65 min
May 11, 1:59 PM CDTTornado WarningDMX46 min
May 11, 2:36 PM CDTMesoscale DiscussionSPC84 min
May 11, 3:24 PM CDTSpecial Weather StatementDMX36 min
May 11, 3:33 PM CDTSevere Thunderstorm WarningDMX27 min
May 11, 3:43 PM CDTSevere Thunderstorm WarningDMX62 min
May 11, 4:01 PM CDTTornado WarningDMX44 min
May 11, 4:27 PM CDTSevere Thunderstorm WarningDMX33 min
May 11, 5:09 PM CDTMesoscale DiscussionSPC66 min
May 11, 7:49 PM CDTTornado WatchSPC7 hr
May 11, 11:01 PM CDTMesoscale DiscussionSPC59 min
May 12, 10:34 AM CDTFlash Flood WatchDMX7 hr
May 12, 11:54 AM CDTMesoscale DiscussionSPC2 hr
May 12, 1:00 PM CDTSevere Thunderstorm WatchSPC7 hr
May 12, 3:14 PM CDTSevere Thunderstorm WarningDMX46 min
May 12, 3:21 PM CDTMesoscale DiscussionSPC54 min
May 12, 7:26 PM CDTMesoscale DiscussionSPC64 min
May 16, 3:21 PM CDTFrost AdvisoryDMX16 hr
May 20, 3:55 PM CDTSevere Thunderstorm WatchSPC7 hr
May 21, 1:27 AM CDTMesoscale DiscussionSPC93 min
Jun 3, 4:17 AM CDTFlash Flood WatchDMX23 hr
Jun 3, 4:37 PM CDTMesoscale DiscussionSPC83 min
Jun 3, 5:59 PM CDTTornado WatchSPC7 hr
Jun 3, 9:41 PM CDTMesoscale DiscussionSPC64 min
Jun 16, 10:19 AM CDTMesoscale DiscussionSPC116 min
Jun 16, 2:19 PM CDTMesoscale DiscussionSPC86 min
Jun 16, 9:56 PM CDTSevere Thunderstorm WatchSPC5 hr
Jun 17, 1:29 AM CDTMesoscale DiscussionSPC91 min
Jun 17, 1:57 AM CDTSevere Thunderstorm WarningDMX63 min
Jun 19, 1:35 PM CDTSpecial Weather StatementDMX55 min
Jun 22, 11:19 AM CDTMesoscale DiscussionSPC101 min
Jun 22, 3:02 PM CDTSevere Thunderstorm WarningDMX43 min
Jun 22, 3:13 PM CDTSevere Thunderstorm WarningDMX48 min
Jun 26, 2:54 PM CDTMesoscale DiscussionSPC3 hr
Jun 27, 2:30 PM CDTMesoscale DiscussionSPC60 min
Jun 28, 2:06 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 28, 6:09 PM CDTMesoscale DiscussionSPC96 min
Jun 29, 4:04 PM CDTTornado WatchSPC7 hr
Jun 29, 7:32 PM CDTFlash Flood WatchDMX22 hr
Jun 30, 4:03 AM CDTRiver Flood WarningDMX3 days
Jun 30, 4:06 AM CDTSevere Thunderstorm WatchSPC10 hr
Jun 30, 9:38 AM CDTTornado WatchSPC10 hr
Jun 30, 1:27 PM CDTMesoscale DiscussionSPC93 min
Jun 30, 3:17 PM CDTMesoscale DiscussionSPC58 min
Jul 5, 8:21 PM CDTRiver Flood WarningDMX48 hr
Jul 6, 10:18 PM CDTSevere Thunderstorm WarningDMX42 min
Jul 6, 10:53 PM CDTSevere Thunderstorm WarningDMX37 min
Jul 12, 3:48 PM CDTMesoscale DiscussionSPC117 min
Jul 12, 4:58 PM CDTTornado WatchSPC6 hr
Jul 12, 7:02 PM CDTSpecial Weather StatementDMX28 min
Jul 12, 7:09 PM CDTMesoscale DiscussionSPC96 min
Jul 20, 3:23 PM CDTHeat AdvisoryDMX52 hr
Jul 22, 7:03 AM CDTSpecial Weather StatementDMX57 min
Jul 22, 7:07 AM CDTSevere Thunderstorm WarningDMX38 min
Jul 22, 7:16 AM CDTMesoscale DiscussionSPC119 min
Aug 17, 4:36 AM CDTDense Fog AdvisoryDMX4 hr
Aug 23, 6:09 AM CDTFlash Flood WarningDMX6 hr
Aug 28, 1:12 PM CDTMesoscale DiscussionSPC3 hr
Aug 29, 3:02 PM CDTMesoscale DiscussionSPC2 hr
Aug 31, 9:09 PM CDTMesoscale DiscussionSPC96 min
Aug 31, 9:45 PM CDTSevere Thunderstorm WatchSPC4 hr
Aug 31, 11:49 PM CDTSevere Thunderstorm WarningDMX41 min
Sep 9, 3:56 AM CDTFlash Flood WatchDMX24 hr
Sep 9, 3:34 PM CDTTornado WatchSPC8 hr
Sep 9, 5:05 PM CDTSevere Thunderstorm WarningDMX25 min
Sep 9, 8:07 PM CDTFlash Flood WarningDMX11 hr
Sep 10, 2:53 AM CDTRiver Flood WarningDMX53 hr
Sep 10, 9:40 AM CDTRiver Flood WarningDMX29 hr
Oct 1, 11:12 PM CDTDense Fog AdvisoryDMX10 hr
Oct 10, 3:15 PM CDTFrost AdvisoryDMX18 hr
Oct 14, 3:41 AM CDTRiver Flood WarningDMX7 days
Oct 14, 5:46 AM CDTRiver Flood WarningDMX45 hr
Oct 23, 3:58 PM CDTDense Fog AdvisoryDMX18 hr
Oct 24, 9:12 PM CDTDense Fog AdvisoryDMX8 hr
Nov 14, 3:39 AM CSTWinter Weather AdvisoryDMX44 hr
Nov 21, 3:48 AM CSTFreezing Rain AdvisoryDMX26 hr
Dec 5, 1:26 AM CSTDense Fog AdvisoryDMX9 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 archive20132015

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.