Alert archive / Iowa / Emmet County

Weather alerts in Emmet County, Iowa, 2009

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

Emmet County and its neighbors

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

Alerts
98
Warnings
13
Watches
20
Advisories
34
Busiest month
July19 alerts
Busiest day
July 10, 20096 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Emmet County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings30100%10%
Flash flood warnings10100%0

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Des Moines, IA: tornado warnings17759%2483%16 min
NWS Des Moines, IA: severe thunderstorm warnings19410645%39980%22 min
NWS Des Moines, IA: flash flood warnings12558%2785%110 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, 3:51 AM CSTWinter Weather AdvisoryDMX20 hr
Jan 11, 3:57 AM CSTBlizzard WatchDMX24 hr
Jan 11, 4:24 PM CSTWinter Weather AdvisoryDMX31 hr
Jan 12, 4:00 AM CSTBlizzard WarningDMX17 hr
Jan 12, 4:00 AM CSTWind Chill AdvisoryDMX32 hr
Jan 12, 10:56 AM CSTMesoscale DiscussionSPC6 hr
Jan 12, 6:27 PM CSTMesoscale DiscussionSPC4 hr
Jan 13, 3:55 AM CSTWinter Weather AdvisoryDMX24 hr
Jan 13, 6:12 PM CSTMesoscale DiscussionSPC4 hr
Jan 14, 3:50 AM CSTWind Chill WarningDMX54 hr
Jan 14, 8:50 AM CSTWinter Weather AdvisoryDMX6 hr
Jan 23, 3:38 AM CSTWind Chill AdvisoryDMX32 hr
Jan 23, 7:02 AM CSTWind AdvisoryDMX4 hr
Jan 23, 9:39 AM CSTWinter Weather AdvisoryDMX4 hr
Jan 23, 2:15 PM CSTWinter Weather AdvisoryDMX4 hr
Feb 2, 3:16 PM CSTWind Chill AdvisoryDMX19 hr
Feb 9, 12:00 PM CSTWind AdvisoryDMX16 hr
Feb 20, 3:53 AM CSTWinter Weather AdvisoryDMX32 hr
Feb 25, 3:59 AM CSTWinter Storm WatchDMX17 hr
Feb 25, 9:25 PM CSTWinter Storm WarningDMX18 hr
Feb 26, 6:33 AM CSTMesoscale DiscussionSPC5 hr
Mar 7, 3:55 PM CSTWinter Weather AdvisoryDMX23 hr
Mar 7, 8:09 PM CSTMesoscale DiscussionSPC4 hr
Mar 10, 3:39 PM CDTWind AdvisoryDMX15 hr
Mar 11, 12:46 AM CDTWind Chill AdvisoryDMX8 hr
Mar 22, 11:28 PM CDTMesoscale DiscussionSPC3 hr
Mar 23, 3:50 AM CDTWind AdvisoryDMX18 hr
Apr 2, 3:19 PM CDTWinter Storm WatchDMX37 hr
Apr 3, 3:54 PM CDTBlizzard WatchDMX12 hr
Apr 4, 4:23 AM CDTBlizzard WarningDMX24 hr
Apr 4, 4:23 AM CDTWinter Storm WarningDMX39 hr
Apr 4, 3:26 PM CDTWinter Weather AdvisoryDMX28 hr
Apr 26, 9:34 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 30, 4:49 AM CDTDense Fog AdvisoryDMX5 hr
May 16, 3:41 AM CDTFrost AdvisoryDMX27 hr
May 19, 3:42 PM CDTWind AdvisoryDMX27 hr
Jun 7, 11:16 AM CDTMesoscale DiscussionSPC119 min
Jun 17, 3:53 AM CDTDense Fog AdvisoryDMX6 hr
Jun 17, 6:21 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 17, 11:53 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 6:41 AM CDTMesoscale DiscussionSPC94 min
Jun 18, 7:04 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 18, 3:15 PM CDTMesoscale DiscussionSPC90 min
Jun 21, 12:33 PM CDTMesoscale DiscussionSPC87 min
Jun 21, 3:17 PM CDTTornado WatchSPC8 hr
Jun 21, 3:41 PM CDTHeat AdvisoryDMX66 hr
Jun 21, 6:51 PM CDTMesoscale DiscussionSPC84 min
Jun 23, 11:31 AM CDTMesoscale DiscussionSPC89 min
Jun 23, 12:01 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 24, 7:34 AM CDTMesoscale DiscussionSPC56 min
Jul 7, 1:47 PM CDTMesoscale DiscussionSPC58 min
Jul 7, 3:56 PM CDTMesoscale DiscussionSPC34 min
Jul 7, 6:12 PM CDTMesoscale DiscussionSPC63 min
Jul 7, 6:33 PM CDTMesoscale DiscussionSPC27 min
Jul 7, 6:56 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 9, 2:57 PM CDTMesoscale DiscussionSPC93 min
Jul 9, 7:02 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 9, 8:57 PM CDTSevere Thunderstorm WarningDMX48 min
Jul 9, 9:42 PM CDTSevere Thunderstorm WarningDMX48 min
Jul 9, 11:09 PM CDTFlash Flood WarningDMX6 hr
Jul 9, 11:31 PM CDTMesoscale DiscussionSPC89 min
Jul 10, 1:36 AM CDTMesoscale DiscussionSPC24 min
Jul 14, 1:42 PM CDTMesoscale DiscussionSPC93 min
Jul 14, 7:51 PM CDTSevere Thunderstorm WarningDMX54 min
Jul 14, 8:13 PM CDTSevere Thunderstorm WatchSPC5 hr
Jul 14, 10:19 PM CDTMesoscale DiscussionSPC56 min
Jul 21, 12:20 PM CDTMesoscale DiscussionSPC55 min
Jul 24, 10:32 AM CDTSevere Thunderstorm WatchSPC6 hr
Jul 24, 2:24 PM CDTMesoscale DiscussionSPC96 min
Aug 2, 8:32 PM CDTMesoscale DiscussionSPC28 min
Aug 2, 11:21 PM CDTMesoscale DiscussionSPC84 min
Aug 2, 11:37 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 7, 8:58 PM CDTMesoscale DiscussionSPC92 min
Aug 7, 10:14 PM CDTSevere Thunderstorm WatchSPC6 hr
Aug 8, 1:29 AM CDTMesoscale DiscussionSPC2 hr
Aug 8, 12:16 PM CDTMesoscale DiscussionSPC29 min
Aug 19, 5:32 PM CDTSevere Thunderstorm WatchSPC6 hr
Sep 8, 7:18 AM CDTDense Fog AdvisoryDMX3 hr
Sep 28, 9:38 AM CDTWind AdvisoryDMX9 hr
Oct 3, 9:54 PM CDTFrost AdvisoryDMX10 hr
Oct 9, 4:07 AM CDTFreeze WarningDMX29 hr
Oct 11, 3:35 PM CDTWinter Weather AdvisoryDMX19 hr
Nov 20, 4:05 AM CSTDense Fog AdvisoryDMX6 hr
Dec 6, 3:34 PM CSTWinter Storm WatchDMX24 hr
Dec 7, 3:42 PM CSTBlizzard WatchDMX19 hr
Dec 7, 3:42 PM CSTWinter Storm WarningDMX29 hr
Dec 8, 10:34 AM CSTBlizzard WarningDMX31 hr
Dec 8, 9:38 PM CSTMesoscale DiscussionSPC6 hr
Dec 9, 10:22 AM CSTMesoscale DiscussionSPC4 hr
Dec 9, 3:29 PM CSTWind Chill AdvisoryDMX21 hr
Dec 9, 3:29 PM CSTWinter Weather AdvisoryDMX6 hr
Dec 13, 9:08 PM CSTWinter Weather AdvisoryDMX15 hr
Dec 14, 3:30 PM CSTWind Chill AdvisoryDMX19 hr
Dec 21, 3:44 PM CSTWinter Storm WatchDMX60 hr
Dec 21, 3:44 PM CSTWinter Weather AdvisoryDMX13 hr
Dec 22, 12:45 PM CSTFreezing Rain AdvisoryDMX16 hr
Dec 23, 5:07 AM CSTWinter Storm WarningDMX71 hr
Dec 23, 5:07 AM CSTWinter Weather AdvisoryDMX23 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.