Alert archive / Arkansas / Montgomery County

Weather alerts in Montgomery County, Arkansas, 2017

105 weather alerts in 2017, 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 2017. Tap one for its archive.

Alerts
105
Warnings
25
Watches
18
Advisories
0
Busiest month
April35 alerts
Busiest day
April 30, 201711 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 Montgomery County in 2017 had a tornado report inside them.

Montgomery County, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings20100%0
Severe thunderstorm warnings17853%5100%20 min
Flash flood warnings5340%2100%102 min

Each office's whole area, 2017

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Little Rock, AR: tornado warnings53689%1947%21 min
NWS Little Rock, AR: severe thunderstorm warnings32714356%32381%23 min
NWS Little Rock, AR: flash flood warnings834447%7797%76 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 21, 3:41 PM CSTTornado WatchSPC7 hr
Jan 21, 5:31 PM CSTSevere Thunderstorm WarningLZK30 min
Jan 21, 5:32 PM CSTMesoscale DiscussionSPC118 min
Feb 6, 10:31 PM CSTMesoscale DiscussionSPC2 hr
Feb 6, 10:59 PM CSTSevere Thunderstorm WatchSPC9 hr
Feb 7, 1:52 AM CSTMesoscale DiscussionSPC113 min
Feb 7, 4:46 AM CSTSevere Thunderstorm WarningLZK44 min
Feb 28, 3:38 PM CSTSpecial Weather StatementLZK37 min
Feb 28, 3:40 PM CSTTornado WatchSPC6 hr
Feb 28, 4:20 PM CSTSpecial Weather StatementLZK40 min
Feb 28, 4:36 PM CSTSevere Thunderstorm WarningLZK39 min
Feb 28, 5:28 PM CSTMesoscale DiscussionSPC2 hr
Feb 28, 10:46 PM CSTMesoscale DiscussionSPC119 min
Feb 28, 11:35 PM CSTTornado WatchSPC5 hr
Mar 1, 2:09 AM CSTMesoscale DiscussionSPC2 hr
Mar 1, 2:36 AM CSTSpecial Weather StatementLZK39 min
Mar 6, 9:21 PM CSTTornado WatchSPC8 hr
Mar 7, 12:21 AM CSTTornado WarningLZK39 min
Mar 7, 2:32 AM CSTSpecial Weather StatementLZK43 min
Mar 7, 2:58 AM CSTMesoscale DiscussionSPC92 min
Mar 24, 3:25 PM CDTMesoscale DiscussionSPC95 min
Mar 27, 12:44 AM CDTMesoscale DiscussionSPC61 min
Mar 29, 4:17 PM CDTTornado WatchSPC8 hr
Mar 29, 7:34 PM CDTMesoscale DiscussionSPC86 min
Mar 29, 10:02 PM CDTSpecial Weather StatementLZK43 min
Mar 29, 10:20 PM CDTSevere Thunderstorm WarningLZK27 min
Apr 4, 9:12 PM CDTSevere Thunderstorm WatchSPC4 hr
Apr 4, 9:28 PM CDTMesoscale DiscussionSPC92 min
Apr 4, 10:30 PM CDTSpecial Weather StatementLZK45 min
Apr 4, 10:44 PM CDTSevere Thunderstorm WarningLZK32 min
Apr 4, 11:38 PM CDTMesoscale DiscussionSPC97 min
Apr 21, 9:45 AM CDTMesoscale DiscussionSPC2 hr
Apr 21, 10:04 AM CDTSevere Thunderstorm WatchSPC5 hr
Apr 21, 1:12 PM CDTMesoscale DiscussionSPC93 min
Apr 21, 4:40 PM CDTTornado WatchSPC8 hr
Apr 21, 7:11 PM CDTMesoscale DiscussionSPC94 min
Apr 21, 9:28 PM CDTMesoscale DiscussionSPC92 min
Apr 21, 11:39 PM CDTMesoscale DiscussionSPC96 min
Apr 21, 11:47 PM CDTSevere Thunderstorm WarningLZK32 min
Apr 26, 5:37 AM CDTMesoscale DiscussionSPC113 min
Apr 26, 6:00 AM CDTSevere Thunderstorm WatchSPC7 hr
Apr 26, 7:29 AM CDTMesoscale DiscussionSPC2 hr
Apr 26, 9:39 AM CDTMesoscale DiscussionSPC36 min
Apr 26, 10:08 AM CDTTornado WatchSPC7 hr
Apr 26, 10:27 AM CDTSevere Thunderstorm WarningLZK33 min
Apr 26, 11:32 AM CDTSpecial Weather StatementLZK43 min
Apr 26, 2:01 PM CDTFlash Flood WarningLZK3 hr
Apr 29, 1:11 PM CDTMesoscale DiscussionSPC2 hr
Apr 29, 3:31 PM CDTSpecial Weather StatementLZK44 min
Apr 29, 6:31 PM CDTSpecial Weather StatementLZK44 min
Apr 29, 7:21 PM CDTSpecial Weather StatementLZK54 min
Apr 29, 7:45 PM CDTSevere Thunderstorm WarningLZK45 min
Apr 29, 8:27 PM CDTSevere Thunderstorm WarningLZK48 min
Apr 29, 8:58 PM CDTFlash Flood WarningLZK3 hr
Apr 29, 9:15 PM CDTSpecial Weather StatementLZK45 min
Apr 29, 9:24 PM CDTSevere Thunderstorm WarningLZK31 min
Apr 29, 9:41 PM CDTSevere Thunderstorm WarningLZK49 min
Apr 29, 10:14 PM CDTTornado WarningLZK31 min
Apr 29, 10:23 PM CDTSevere Thunderstorm WatchSPC8 hr
Apr 29, 11:37 PM CDTMesoscale DiscussionSPC53 min
Apr 30, 12:16 AM CDTAreal Flood WarningLZK6 hr
May 3, 9:24 AM CDTSpecial Weather StatementLZK51 min
May 3, 11:27 AM CDTFlash Flood WarningLZK3 hr
May 3, 2:32 PM CDTFlash Flood WarningLZK3 hr
May 11, 2:49 PM CDTMesoscale DiscussionSPC116 min
May 11, 3:17 PM CDTSevere Thunderstorm WatchSPC7 hr
May 11, 5:49 PM CDTMesoscale DiscussionSPC56 min
May 19, 9:16 PM CDTMesoscale DiscussionSPC59 min
May 19, 9:42 PM CDTTornado WatchSPC7 hr
May 19, 11:51 PM CDTMesoscale DiscussionSPC114 min
May 28, 12:18 AM CDTSevere Thunderstorm WatchSPC6 hr
May 28, 12:47 AM CDTSevere Thunderstorm WarningLZK58 min
May 28, 12:52 AM CDTMesoscale DiscussionSPC23 min
May 28, 1:40 AM CDTSevere Thunderstorm WarningLZK50 min
Jun 17, 9:28 AM CDTMesoscale DiscussionSPC2 hr
Jun 18, 8:05 AM CDTMesoscale DiscussionSPC115 min
Jun 18, 9:43 AM CDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 10:11 AM CDTSevere Thunderstorm WarningLZK64 min
Jun 23, 12:22 PM CDTMesoscale DiscussionSPC2 hr
Jun 23, 2:04 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 23, 5:58 PM CDTSpecial Weather StatementLZK47 min
Jun 23, 6:11 PM CDTSpecial Weather StatementLZK34 min
Jun 23, 7:17 PM CDTSevere Thunderstorm WarningLZK25 min
Jun 30, 10:22 PM CDTSpecial Weather StatementLZK23 min
Jun 30, 10:58 PM CDTSpecial Weather StatementLZK62 min
Jul 1, 8:00 PM CDTSpecial Weather StatementLZK30 min
Jul 4, 12:51 AM CDTMesoscale DiscussionSPC114 min
Jul 13, 5:35 PM CDTSpecial Weather StatementLZK25 min
Jul 14, 10:37 AM CDTSpecial Weather StatementLZK23 min
Jul 14, 10:59 AM CDTSpecial Weather StatementLZK46 min
Jul 23, 3:15 PM CDTMesoscale DiscussionSPC3 hr
Jul 23, 7:18 PM CDTFlash Flood WarningLZK117 min
Aug 6, 7:47 AM CDTSpecial Weather StatementLZK43 min
Aug 6, 8:32 AM CDTSevere Thunderstorm WarningLZK28 min
Aug 12, 9:48 PM CDTSpecial Weather StatementLZK42 min
Sep 24, 3:40 PM CDTSpecial Weather StatementLZK35 min
Oct 21, 11:56 PM CDTSevere Thunderstorm WatchSPC7 hr
Oct 22, 1:44 AM CDTMesoscale DiscussionSPC91 min
Oct 22, 1:48 AM CDTSevere Thunderstorm WarningLZK57 min
Oct 22, 2:17 AM CDTSpecial Weather StatementLZK43 min
Oct 22, 2:52 AM CDTSpecial Weather StatementLZK38 min
Dec 4, 5:08 PM CSTSpecial Weather StatementLZK37 min
Dec 4, 5:34 PM CSTMesoscale DiscussionSPC86 min
Dec 4, 8:13 PM CSTSpecial Weather StatementLZK62 min
Dec 4, 8:54 PM CSTSpecial Weather StatementLZK51 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 archive20162018

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.