Alert archive / Arkansas / Montgomery County

Weather alerts in Montgomery County, Arkansas, 2010

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

Montgomery County and its neighbors

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

Alerts
132
Warnings
74
Watches
16
Advisories
2
Busiest month
May56 alerts
Busiest day
May 1, 201014 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 13 tornado warnings covering Montgomery County in 2010 had a tornado report inside them.

Montgomery County, 2010

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings130100%0
Severe thunderstorm warnings471372%11100%24 min
Flash flood warnings14750%8100%105 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, 8:36 PM CSTSevere Thunderstorm WarningLZK39 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, 3:26 PM CSTTornado WatchSPC7 hr
Mar 10, 5:55 PM CSTSevere Thunderstorm WarningLZK50 min
Mar 10, 6:12 PM CSTSevere Thunderstorm WarningLZK48 min
Mar 10, 6:33 PM CSTTornado WarningLZK42 min
Mar 10, 6:36 PM CSTSevere Thunderstorm WarningLZK22 min
Mar 10, 7:53 PM CSTSevere Thunderstorm WarningLZK52 min
Mar 27, 4:33 PM CDTSevere Thunderstorm WatchSPC5 hr
Apr 2, 9:35 AM CDTMesoscale DiscussionSPC55 min
Apr 2, 8:01 PM CDTMesoscale DiscussionSPC89 min
Apr 23, 1:13 PM CDTSevere Thunderstorm WarningLZK34 min
Apr 23, 1:21 PM CDTSevere Thunderstorm WarningLZK24 min
Apr 23, 1:45 PM CDTSevere Thunderstorm WarningLZK45 min
Apr 23, 2:50 PM CDTMesoscale DiscussionSPC115 min
Apr 23, 6:51 PM CDTTornado WatchSPC8 hr
Apr 24, 3:05 AM CDTSevere Thunderstorm WarningLZK40 min
Apr 30, 1:11 PM CDTMesoscale DiscussionSPC2 hr
Apr 30, 1:46 PM CDTTornado WatchSPC5 hr
Apr 30, 5:24 PM CDTSevere Thunderstorm WarningLZK51 min
Apr 30, 5:32 PM CDTSevere Thunderstorm WarningLZK43 min
Apr 30, 5:53 PM CDTMesoscale DiscussionSPC37 min
Apr 30, 6:12 PM CDTSevere Thunderstorm WarningLZK48 min
Apr 30, 6:13 PM CDTSevere Thunderstorm WarningLZK47 min
Apr 30, 6:24 PM CDTTornado WatchSPC3 hr
Apr 30, 6:57 PM CDTSevere Thunderstorm WarningLZK48 min
Apr 30, 7:00 PM CDTTornado WarningLZK30 min
Apr 30, 7:26 PM CDTMesoscale DiscussionSPC2 hr
Apr 30, 7:47 PM CDTSevere Thunderstorm WarningLZK43 min
Apr 30, 8:01 PM CDTTornado WarningLZK44 min
Apr 30, 8:24 PM CDTSevere Thunderstorm WarningLZK51 min
Apr 30, 8:44 PM CDTTornado WarningLZK31 min
Apr 30, 9:09 PM CDTTornado Watch PDSSPC7 hr
Apr 30, 9:14 PM CDTTornado WarningLZK31 min
Apr 30, 9:43 PM CDTTornado WarningLZK32 min
Apr 30, 10:12 PM CDTTornado WarningLZK18 min
Apr 30, 10:43 PM CDTMesoscale DiscussionSPC62 min
Apr 30, 11:41 PM CDTMesoscale DiscussionSPC64 min
May 1, 3:18 PM CDTTornado Watch PDSSPC7 hr
May 1, 6:36 PM CDTTornado WarningLZK24 min
May 1, 7:01 PM CDTSevere Thunderstorm WarningLZK44 min
May 1, 7:11 PM CDTMesoscale DiscussionSPC64 min
May 1, 7:18 PM CDTTornado WarningLZK27 min
May 1, 7:52 PM CDTTornado WarningLZK23 min
May 1, 8:29 PM CDTSevere Thunderstorm WarningLZK46 min
May 1, 8:31 PM CDTTornado WarningLZK29 min
May 1, 8:31 PM CDTMesoscale DiscussionSPC44 min
May 2, 12:12 AM CDTFlash Flood WarningLZK3 hr
May 14, 4:42 PM CDTMesoscale DiscussionSPC63 min
May 14, 4:59 PM CDTSevere Thunderstorm WatchSPC7 hr
May 14, 6:28 PM CDTSevere Thunderstorm WarningLZK47 min
May 14, 7:04 PM CDTMesoscale DiscussionSPC56 min
May 14, 7:17 PM CDTSevere Thunderstorm WarningLZK43 min
May 14, 8:02 PM CDTSevere Thunderstorm WarningLZK43 min
May 14, 8:11 PM CDTFlash Flood WarningLZK5 hr
May 14, 9:49 PM CDTSevere Thunderstorm WarningLZK41 min
May 14, 10:16 PM CDTSevere Thunderstorm WarningLZK44 min
May 14, 10:22 PM CDTFlash Flood WarningLZK3 hr
May 14, 10:42 PM CDTMesoscale DiscussionSPC93 min
May 16, 12:34 PM CDTMesoscale DiscussionSPC86 min
May 16, 1:28 PM CDTSevere Thunderstorm WatchSPC8 hr
May 16, 1:34 PM CDTSevere Thunderstorm WarningLZK56 min
May 16, 2:14 PM CDTSevere Thunderstorm WarningLZK61 min
May 16, 3:08 PM CDTSevere Thunderstorm WarningLZK37 min
May 16, 6:03 PM CDTMesoscale DiscussionSPC57 min
May 19, 5:30 PM CDTMesoscale DiscussionSPC60 min
May 19, 7:32 PM CDTTornado WatchSPC6 hr
May 19, 9:05 PM CDTMesoscale DiscussionSPC85 min
May 19, 10:30 PM CDTSevere Thunderstorm WarningLZK45 min
May 19, 10:39 PM CDTSevere Thunderstorm WarningLZK51 min
May 19, 10:47 PM CDTTornado WarningLZK43 min
May 19, 11:09 PM CDTMesoscale DiscussionSPC96 min
May 19, 11:31 PM CDTSevere Thunderstorm WarningLZK59 min
May 19, 11:50 PM CDTTornado WarningLZK40 min
May 20, 12:22 AM CDTFlash Flood WarningLZK6 hr
May 20, 12:30 AM CDTSevere Thunderstorm WarningLZK60 min
May 20, 1:16 AM CDTSevere Thunderstorm WarningLZK59 min
May 20, 1:54 AM CDTMesoscale DiscussionSPC66 min
May 20, 2:05 AM CDTSevere Thunderstorm WatchSPC7 hr
May 20, 9:14 AM CDTFlash Flood WarningLZK2 hr
May 25, 2:59 PM CDTSevere Thunderstorm WarningLZK32 min
May 26, 7:59 PM CDTSevere Thunderstorm WarningLZK28 min
Jun 11, 1:57 AM CDTFlash Flood WarningLZK4 hr
Jun 11, 6:07 AM CDTFlash Flood WarningLZK2 hr
Jun 24, 6:31 PM CDTFlash Flood WarningLZK2 hr
Jun 28, 1:08 PM CDTFlash Flood WarningLZK3 hr
Jun 28, 1:27 PM CDTSevere Thunderstorm WarningLZK48 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 16, 7:59 PM CDTSevere Thunderstorm WarningLZK46 min
Jul 17, 2:21 PM CDTSevere Thunderstorm WarningLZK39 min
Jul 17, 3:46 PM CDTSevere Thunderstorm WarningLZK44 min
Jul 25, 7:23 PM CDTFlash Flood WarningLZK112 min
Jul 25, 7:39 PM CDTSevere Thunderstorm WarningLZK36 min
Jul 25, 7:51 PM CDTSpecial Weather StatementLZK34 min
Jul 25, 7:53 PM CDTSevere Thunderstorm WarningLZK52 min
Jul 25, 8:14 PM CDTFlash Flood WarningLZK2 hr
Jul 25, 10:20 PM CDTFlash Flood WarningLZK115 min
Jul 26, 4:27 PM CDTFlash Flood WarningLZK3 hr
Aug 1, 3:10 PM CDTMesoscale DiscussionSPC2 hr
Aug 5, 2:36 PM CDTMesoscale DiscussionSPC54 min
Aug 8, 5:43 PM CDTAreal Flood AdvisoryLZK107 min
Aug 15, 5:05 PM CDTSpecial Weather StatementLZK30 min
Aug 15, 5:08 PM CDTSevere Thunderstorm WarningLZK37 min
Aug 15, 5:49 PM CDTSevere Thunderstorm WarningLZK41 min
Aug 15, 6:15 PM CDTFlash Flood WarningLZK105 min
Aug 21, 5:03 PM CDTSevere Thunderstorm WarningLZK42 min
Aug 22, 2:21 PM CDTSpecial Weather StatementLZK44 min
Sep 1, 2:00 PM CDTAreal Flood AdvisoryLZK2 hr
Sep 8, 9:52 PM CDTMesoscale DiscussionSPC113 min
Sep 8, 10:12 PM CDTTornado WatchSPC4 hr
Oct 24, 1:51 PM CDTTornado WatchSPC8 hr
Oct 24, 2:23 PM CDTSevere Thunderstorm WarningLZK37 min
Oct 24, 2:52 PM CDTSevere Thunderstorm WarningLZK38 min
Oct 24, 2:57 PM CDTSevere Thunderstorm WarningLZK48 min
Oct 24, 3:31 PM CDTSevere Thunderstorm WarningLZK29 min
Oct 24, 3:36 PM CDTMesoscale DiscussionSPC84 min
Oct 26, 2:52 AM CDTSpecial Weather StatementLZK28 min
Oct 26, 4:23 AM CDTSevere Thunderstorm WarningLZK33 min
Nov 2, 12:13 AM CDTSpecial Weather StatementLZK42 min
Nov 22, 3:19 PM CSTMesoscale DiscussionSPC86 min
Nov 22, 11:44 PM CSTMesoscale DiscussionSPC2 hr
Nov 23, 6:30 PM CSTSpecial Weather StatementLZK45 min
Dec 30, 8:52 PM CSTMesoscale DiscussionSPC113 min
Dec 31, 7:29 AM CSTTornado WatchSPC8 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 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.