Alert archive / Arkansas / Logan County

Weather alerts in Logan County, Arkansas, 2010

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

Logan County and its neighbors

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

Alerts
95
Warnings
39
Watches
12
Advisories
2
Busiest month
May23 alerts
Busiest day
April 30, 201011 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 1 tornado warnings covering Logan County in 2010 had a tornado report inside them.

Logan County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings311068%667%14 min
Flash flood warnings7443%250%47 min

Each office's whole area, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Little Rock, AR: tornado warnings871187%1979%25 min
NWS Little Rock, AR: severe thunderstorm warnings44417361%29581%19 min
NWS Little Rock, AR: flash flood warnings1384766%7187%62 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 19, 10:11 PM CSTMesoscale DiscussionSPC2 hr
Jan 20, 6:17 PM CSTMesoscale DiscussionSPC88 min
Jan 20, 9:20 PM CSTMesoscale DiscussionSPC55 min
Jan 20, 11:03 PM CSTMesoscale DiscussionSPC87 min
Jan 29, 6:31 AM CSTMesoscale DiscussionSPC4 hr
Mar 10, 11:39 AM CSTSevere Thunderstorm WatchSPC5 hr
Mar 10, 3:13 PM CSTMesoscale DiscussionSPC92 min
Mar 10, 6:36 PM CSTSevere Thunderstorm WarningLZK22 min
Mar 27, 4:09 PM CDTSevere Thunderstorm WarningLZK51 min
Mar 27, 4:33 PM CDTSevere Thunderstorm WatchSPC5 hr
Mar 27, 4:43 PM CDTSevere Thunderstorm WarningLZK33 min
Mar 27, 5:04 PM CDTSevere Thunderstorm WarningLZK41 min
Apr 2, 9:35 AM CDTMesoscale DiscussionSPC55 min
Apr 2, 8:01 PM CDTMesoscale DiscussionSPC89 min
Apr 30, 1:11 PM CDTMesoscale DiscussionSPC2 hr
Apr 30, 1:46 PM CDTTornado WatchSPC5 hr
Apr 30, 4:52 PM CDTSevere Thunderstorm WarningLZK38 min
Apr 30, 5:32 PM CDTSevere Thunderstorm WarningLZK43 min
Apr 30, 5:40 PM CDTSevere Thunderstorm WarningLZK50 min
Apr 30, 5:44 PM CDTSevere Thunderstorm WarningLZK46 min
Apr 30, 5:53 PM CDTMesoscale DiscussionSPC37 min
Apr 30, 6:12 PM CDTSevere Thunderstorm WarningLZK48 min
Apr 30, 6:12 PM CDTTornado WarningLZK48 min
Apr 30, 6:24 PM CDTTornado WatchSPC3 hr
Apr 30, 6:57 PM CDTSevere Thunderstorm WarningLZK48 min
Apr 30, 8:24 PM CDTSevere Thunderstorm WarningLZK51 min
May 1, 7:11 PM CDTMesoscale DiscussionSPC64 min
May 1, 7:53 PM CDTSevere Thunderstorm WarningLZK52 min
May 10, 9:51 PM CDTMesoscale DiscussionSPC54 min
May 10, 10:06 PM CDTSevere Thunderstorm WarningLZK39 min
May 13, 1:28 PM CDTMesoscale DiscussionSPC62 min
May 13, 2:33 PM CDTSevere Thunderstorm WatchSPC5 hr
May 14, 4:59 PM CDTSevere Thunderstorm WatchSPC7 hr
May 14, 6:07 PM CDTSevere Thunderstorm WarningLZK38 min
May 14, 9:15 PM CDTSevere Thunderstorm WarningLZK45 min
May 16, 12:34 PM CDTMesoscale DiscussionSPC86 min
May 16, 1:28 PM CDTSevere Thunderstorm WatchSPC8 hr
May 16, 6:03 PM CDTMesoscale DiscussionSPC57 min
May 19, 7:32 PM CDTTornado WatchSPC6 hr
May 19, 9:05 PM CDTMesoscale DiscussionSPC85 min
May 19, 11:09 PM CDTMesoscale DiscussionSPC96 min
May 20, 12:22 AM CDTFlash Flood WarningLZK6 hr
May 20, 1:54 AM CDTMesoscale DiscussionSPC66 min
May 20, 2:10 AM CDTSevere Thunderstorm WarningLZK50 min
May 20, 9:14 AM CDTFlash Flood WarningLZK2 hr
May 20, 2:17 PM CDTRiver Flood AdvisoryLZK19 hr
May 26, 5:38 PM CDTSevere Thunderstorm WarningLZK37 min
May 26, 6:14 PM CDTSevere Thunderstorm WarningLZK31 min
Jun 11, 5:25 AM CDTFlash Flood WarningLZK3 hr
Jun 24, 4:22 PM CDTSevere Thunderstorm WarningLZK38 min
Jun 24, 5:17 PM CDTSevere Thunderstorm WarningLZK43 min
Jun 26, 4:06 PM CDTSpecial Weather StatementTSA39 min
Jul 11, 1:11 PM CDTMesoscale DiscussionSPC94 min
Jul 12, 2:24 PM CDTMesoscale DiscussionSPC2 hr
Jul 12, 2:48 PM CDTSevere Thunderstorm WatchSPC7 hr
Jul 12, 3:11 PM CDTSevere Thunderstorm WarningLZK49 min
Jul 12, 3:34 PM CDTFlash Flood WarningLZK3 hr
Jul 13, 1:23 AM CDTMesoscale DiscussionSPC3 hr
Jul 16, 3:49 PM CDTMesoscale DiscussionSPC86 min
Jul 16, 5:34 PM CDTSpecial Weather StatementLZK31 min
Jul 17, 3:57 PM CDTSevere Thunderstorm WarningLZK40 min
Jul 18, 5:11 PM CDTSpecial Weather StatementLZK29 min
Jul 25, 6:51 PM CDTSpecial Weather StatementLZK29 min
Aug 1, 3:10 PM CDTMesoscale DiscussionSPC2 hr
Aug 5, 1:58 PM CDTSpecial Weather StatementLZK32 min
Aug 5, 1:59 PM CDTSevere Thunderstorm WarningLZK46 min
Aug 5, 2:09 PM CDTSevere Thunderstorm WarningLZK51 min
Aug 5, 2:49 PM CDTSevere Thunderstorm WarningLZK41 min
Aug 5, 2:51 PM CDTSevere Thunderstorm WarningLZK39 min
Aug 5, 3:06 PM CDTSevere Thunderstorm WarningLZK39 min
Aug 5, 3:07 PM CDTSevere Thunderstorm WarningLZK38 min
Aug 5, 3:38 PM CDTSevere Thunderstorm WarningLZK52 min
Aug 5, 3:48 PM CDTFlash Flood WarningLZK3 hr
Aug 5, 4:14 PM CDTSevere Thunderstorm WarningLZK31 min
Aug 11, 2:11 PM CDTSpecial Weather StatementLZK39 min
Aug 15, 7:08 PM CDTFlash Flood WarningLZK112 min
Sep 1, 2:19 PM CDTSpecial Weather StatementLZK31 min
Sep 8, 10:12 PM CDTTornado WatchSPC4 hr
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZK3 days
Sep 9, 3:07 PM CDTFlash Flood WarningLZK113 min
Sep 11, 6:01 PM CDTSpecial Weather StatementLZK44 min
Oct 26, 2:07 AM CDTSpecial Weather StatementLZK63 min
Oct 26, 3:00 AM CDTSevere Thunderstorm WarningLZK45 min
Nov 22, 3:19 PM CSTMesoscale DiscussionSPC86 min
Nov 22, 7:09 PM CSTMesoscale DiscussionSPC66 min
Nov 22, 7:57 PM CSTTornado WatchSPC7 hr
Nov 22, 11:44 PM CSTMesoscale DiscussionSPC2 hr
Nov 23, 12:08 AM CSTSpecial Weather StatementLZK47 min
Nov 24, 6:42 PM CSTMesoscale DiscussionSPC2 hr
Nov 24, 11:51 PM CSTMesoscale DiscussionSPC114 min
Nov 25, 2:34 AM CSTMesoscale DiscussionSPC56 min
Dec 30, 8:52 PM CSTMesoscale DiscussionSPC113 min
Dec 31, 5:45 AM CSTMesoscale DiscussionSPC2 hr
Dec 31, 7:29 AM CSTTornado WatchSPC8 hr
Dec 31, 9:18 AM CSTSpecial Weather StatementLZK47 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.