Alert archive / Arkansas / Perry County

Weather alerts in Perry County, Arkansas, 2009

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

Perry County and its neighbors

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

Alerts
245
Warnings
87
Watches
33
Advisories
65
Busiest month
May52 alerts
Busiest day
May 6, 200913 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 Perry County in 2009 had a tornado report inside them.

Perry County, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings10100%0
Severe thunderstorm warnings411661%4100%36 min
Flash flood warnings211243%0

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Little Rock, AR: tornado warnings50884%1182%26 min
NWS Little Rock, AR: severe thunderstorm warnings54817468%41385%25 min
NWS Little Rock, AR: flash flood warnings1677157%13887%95 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 2, 5:01 PM CSTDense Fog AdvisoryLZK11 hr
Jan 5, 11:13 AM CSTMesoscale DiscussionSPC6 hr
Jan 5, 9:39 PM CSTWinter Weather AdvisoryLZK10 hr
Jan 26, 3:57 AM CSTIce Storm WarningLZK35 hr
Jan 26, 3:57 AM CSTWinter Storm WatchLZK24 hr
Jan 26, 3:57 AM CSTFreezing Rain AdvisoryLZK35 hr
Jan 26, 10:54 AM CSTMesoscale DiscussionSPC4 hr
Jan 26, 6:59 PM CSTMesoscale DiscussionSPC5 hr
Jan 27, 3:45 AM CSTWinter Weather AdvisoryLZK26 hr
Jan 27, 12:16 PM CSTMesoscale DiscussionSPC6 hr
Jan 30, 5:09 AM CSTFreezing Fog AdvisoryLZK4 hr
Feb 6, 3:50 AM CSTLake Wind AdvisoryLZK14 hr
Feb 7, 3:35 AM CSTLake Wind AdvisoryLZK14 hr
Feb 8, 2:53 PM CSTLake Wind AdvisoryLZK27 hr
Feb 10, 3:56 AM CSTWind AdvisoryLZK38 hr
Feb 10, 4:50 PM CSTMesoscale DiscussionSPC85 min
Feb 10, 8:34 PM CSTMesoscale DiscussionSPC86 min
Feb 10, 9:30 PM CSTTornado WatchSPC7 hr
Feb 10, 11:13 PM CSTMesoscale DiscussionSPC92 min
Feb 17, 5:44 PM CSTMesoscale DiscussionSPC3 hr
Feb 17, 9:45 PM CSTMesoscale DiscussionSPC2 hr
Feb 18, 2:58 AM CSTLake Wind AdvisoryLZK13 hr
Feb 21, 3:13 AM CSTLake Wind AdvisoryLZK15 hr
Feb 26, 3:58 AM CSTLake Wind AdvisoryLZK14 hr
Feb 26, 5:56 PM CSTMesoscale DiscussionSPC94 min
Feb 26, 6:12 PM CSTSevere Thunderstorm WatchSPC8 hr
Feb 26, 7:42 PM CSTMesoscale DiscussionSPC93 min
Feb 26, 8:40 PM CSTSevere Thunderstorm WarningLZK65 min
Feb 26, 9:06 PM CSTSevere Thunderstorm WarningLZK39 min
Feb 26, 9:45 PM CSTSevere Thunderstorm WarningLZK60 min
Feb 26, 10:36 PM CSTMesoscale DiscussionSPC114 min
Feb 27, 2:40 PM CSTMesoscale DiscussionSPC65 min
Feb 28, 3:23 AM CSTWinter Weather AdvisoryLZK24 hr
Mar 4, 9:27 PM CSTLake Wind AdvisoryLZK45 hr
Mar 7, 4:30 AM CSTLake Wind AdvisoryLZK14 hr
Mar 8, 4:30 AM CDTLake Wind AdvisoryLZK14 hr
Mar 8, 10:11 AM CDTMesoscale DiscussionSPC2 hr
Mar 10, 7:31 PM CDTMesoscale DiscussionSPC119 min
Mar 11, 3:01 PM CDTWinter Weather AdvisoryLZK27 hr
Mar 17, 2:35 AM CDTDense Fog AdvisoryLZK8 hr
Mar 23, 3:57 AM CDTLake Wind AdvisoryLZK15 hr
Mar 24, 3:43 AM CDTLake Wind AdvisoryLZK15 hr
Mar 24, 12:02 PM CDTMesoscale DiscussionSPC88 min
Mar 24, 2:33 PM CDTMesoscale DiscussionSPC87 min
Mar 24, 3:15 PM CDTSevere Thunderstorm WatchSPC4 hr
Mar 26, 6:15 AM CDTDense Fog AdvisoryLZK3 hr
Mar 28, 4:18 AM CDTLake Wind AdvisoryLZK15 hr
Mar 28, 8:37 AM CDTRiver Flood WarningLZK26 hr
Mar 30, 12:10 PM CDTLake Wind AdvisoryLZK7 hr
Mar 31, 8:44 AM CDTRiver Flood AdvisoryLZK46 hr
Mar 31, 8:44 AM CDTRiver Flood AdvisoryLZK46 hr
Apr 1, 1:50 PM CDTRed Flag WarningLZK5 hr
Apr 1, 2:45 PM CDTLake Wind AdvisoryLZK34 hr
Apr 2, 8:01 AM CDTMesoscale DiscussionSPC59 min
Apr 2, 8:45 AM CDTRiver Flood AdvisoryLZK36 hr
Apr 2, 8:45 AM CDTRiver Flood AdvisoryLZK36 hr
Apr 2, 12:50 PM CDTMesoscale DiscussionSPC85 min
Apr 3, 10:41 AM CDTRiver Flood AdvisoryLZK36 hr
Apr 3, 2:11 PM CDTFreeze WatchLZK48 hr
Apr 5, 2:49 AM CDTLake Wind AdvisoryLZK40 hr
Apr 5, 2:26 PM CDTFreeze WarningLZK43 hr
Apr 9, 3:14 AM CDTLake Wind AdvisoryLZK22 hr
Apr 9, 6:59 PM CDTMesoscale DiscussionSPC91 min
Apr 9, 7:21 PM CDTTornado WatchSPC5 hr
Apr 9, 8:22 PM CDTSevere Thunderstorm WarningLZK38 min
Apr 9, 8:44 PM CDTMesoscale DiscussionSPC61 min
Apr 9, 8:56 PM CDTTornado WarningLZK22 min
Apr 9, 9:03 PM CDTSevere Thunderstorm WarningLZK42 min
Apr 9, 9:28 PM CDTSevere Thunderstorm WarningLZK47 min
Apr 9, 9:43 PM CDTMesoscale DiscussionSPC2 hr
Apr 10, 4:59 AM CDTLake Wind AdvisoryLZK14 hr
Apr 12, 7:13 AM CDTMesoscale DiscussionSPC92 min
Apr 12, 7:44 AM CDTSevere Thunderstorm WatchSPC6 hr
Apr 12, 9:27 AM CDTSevere Thunderstorm WarningLZK33 min
Apr 19, 2:43 AM CDTLake Wind AdvisoryLZK12 hr
Apr 19, 4:55 AM CDTSevere Thunderstorm WarningLZK50 min
Apr 19, 12:14 PM CDTMesoscale DiscussionSPC61 min
Apr 23, 3:10 AM CDTLake Wind AdvisoryLZK16 hr
Apr 24, 3:49 AM CDTLake Wind AdvisoryLZK15 hr
Apr 25, 3:57 AM CDTLake Wind AdvisoryLZK12 hr
Apr 26, 11:50 AM CDTRiver Flood AdvisoryLZK43 hr
Apr 26, 11:50 AM CDTRiver Flood AdvisoryLZK43 hr
Apr 26, 11:50 AM CDTRiver Flood AdvisoryLZK43 hr
Apr 27, 2:24 PM CDTMesoscale DiscussionSPC66 min
Apr 27, 8:54 PM CDTMesoscale DiscussionSPC66 min
Apr 28, 3:48 AM CDTAreal Flood AdvisoryLZK164 days
Apr 28, 5:03 AM CDTFlash Flood WatchLZK10 hr
Apr 28, 5:43 PM CDTMesoscale DiscussionSPC62 min
Apr 29, 11:37 AM CDTFlash Flood WatchLZK24 hr
Apr 30, 1:55 PM CDTMesoscale DiscussionSPC2 hr
Apr 30, 6:40 PM CDTSevere Thunderstorm WarningLZK35 min
May 1, 3:33 PM CDTFlash Flood WatchLZK47 hr
May 1, 3:36 PM CDTSevere Thunderstorm WatchSPC6 hr
May 1, 9:36 PM CDTMesoscale DiscussionSPC84 min
May 1, 9:50 PM CDTSevere Thunderstorm WarningLZK55 min
May 1, 9:56 PM CDTSevere Thunderstorm WatchSPC6 hr
May 1, 11:36 PM CDTSevere Thunderstorm WarningLZK39 min
May 2, 12:18 AM CDTSevere Thunderstorm WarningLZK42 min
May 2, 1:45 AM CDTMesoscale DiscussionSPC90 min
May 2, 7:54 AM CDTSevere Thunderstorm WarningLZK41 min
May 2, 9:23 AM CDTMesoscale DiscussionSPC97 min
May 2, 11:04 AM CDTFlash Flood WarningLZK6 hr
May 2, 3:40 PM CDTFlash Flood WarningLZK6 hr
May 2, 7:50 PM CDTRiver Flood WarningLZK8 days
May 2, 7:50 PM CDTRiver Flood WarningLZK13 hr
May 2, 7:52 PM CDTRiver Flood WarningLZK19 days
May 3, 9:19 AM CDTRiver Flood AdvisoryLZK22 hr
May 4, 9:38 AM CDTRiver Flood AdvisoryLZK21 hr
May 4, 9:38 AM CDTRiver Flood AdvisoryLZK21 hr
May 5, 4:10 AM CDTFlash Flood WatchLZK33 hr
May 5, 8:45 AM CDTRiver Flood AdvisoryLZK36 hr
May 5, 8:45 AM CDTRiver Flood AdvisoryLZK36 hr
May 5, 9:55 PM CDTSevere Thunderstorm WarningLZK50 min
May 5, 10:07 PM CDTMesoscale DiscussionSPC83 min
May 5, 10:11 PM CDTSevere Thunderstorm WarningLZK49 min
May 5, 10:27 PM CDTSevere Thunderstorm WatchSPC8 hr
May 5, 10:45 PM CDTSevere Thunderstorm WarningLZK45 min
May 5, 10:54 PM CDTSevere Thunderstorm WarningLZK51 min
May 5, 11:05 PM CDTSevere Thunderstorm WarningLZK40 min
May 5, 11:26 PM CDTSevere Thunderstorm WarningLZK49 min
May 5, 11:30 PM CDTSevere Thunderstorm WarningLZK60 min
May 6, 12:18 AM CDTFlash Flood WarningLZK4 hr
May 6, 1:27 AM CDTMesoscale DiscussionSPC3 hr
May 6, 2:26 AM CDTMesoscale DiscussionSPC2 hr
May 6, 9:22 AM CDTRiver Flood WarningLZK47 hr
May 7, 5:03 AM CDTDense Fog AdvisoryLZK5 hr
May 8, 3:53 AM CDTFlash Flood WatchLZK4 days
May 8, 10:59 AM CDTLake Wind AdvisoryLZK7 hr
May 8, 5:52 PM CDTTornado WatchSPC11 hr
May 8, 9:31 PM CDTMesoscale DiscussionSPC89 min
May 9, 2:08 AM CDTSevere Thunderstorm WarningLZK52 min
May 13, 3:23 AM CDTLake Wind AdvisoryLZK16 hr
May 13, 11:27 PM CDTMesoscale DiscussionSPC93 min
May 14, 1:28 AM CDTSevere Thunderstorm WarningLZK62 min
May 16, 3:03 AM CDTSevere Thunderstorm WarningLZK42 min
May 16, 3:37 AM CDTSevere Thunderstorm WarningLZK23 min
May 16, 3:43 AM CDTSevere Thunderstorm WarningLZK47 min
May 19, 2:04 PM CDTRiver Flood AdvisoryLZK36 hr
May 21, 9:38 AM CDTRiver Flood AdvisoryLZK36 hr
May 21, 9:38 AM CDTRiver Flood AdvisoryLZK36 hr
May 24, 2:54 PM CDTRiver Flood WarningLZK4 days
May 26, 2:40 AM CDTDense Fog AdvisoryLZK6 hr
May 27, 2:51 PM CDTSevere Thunderstorm WarningLZK39 min
Jun 3, 1:22 PM CDTSevere Thunderstorm WarningLZK38 min
Jun 3, 2:26 PM CDTFlash Flood WarningLZK2 hr
Jun 10, 1:29 AM CDTSevere Thunderstorm WatchSPC3 hr
Jun 10, 6:17 PM CDTMesoscale DiscussionSPC58 min
Jun 10, 6:37 PM CDTSevere Thunderstorm WatchSPC8 hr
Jun 10, 8:39 PM CDTMesoscale DiscussionSPC66 min
Jun 10, 11:07 PM CDTMesoscale DiscussionSPC83 min
Jun 12, 6:23 AM CDTMesoscale DiscussionSPC67 min
Jun 12, 9:38 AM CDTMesoscale DiscussionSPC67 min
Jun 12, 10:03 AM CDTMesoscale DiscussionSPC87 min
Jun 12, 11:35 AM CDTSevere Thunderstorm Watch PDSSPC9 hr
Jun 12, 1:28 PM CDTSevere Thunderstorm WarningLZK47 min
Jun 12, 1:30 PM CDTMesoscale DiscussionSPC90 min
Jun 12, 1:49 PM CDTSevere Thunderstorm WarningLZK56 min
Jun 12, 3:22 PM CDTMesoscale DiscussionSPC83 min
Jun 12, 11:10 PM CDTMesoscale DiscussionSPC65 min
Jun 12, 11:53 PM CDTSevere Thunderstorm WatchSPC4 hr
Jun 13, 3:25 AM CDTMesoscale DiscussionSPC65 min
Jun 14, 1:51 AM CDTSevere Thunderstorm WatchSPC4 hr
Jun 14, 5:26 AM CDTMesoscale DiscussionSPC94 min
Jun 23, 12:03 PM CDTHeat AdvisoryLZK7 hr
Jun 24, 3:44 AM CDTHeat AdvisoryLZK15 hr
Jun 26, 3:18 AM CDTHeat AdvisoryLZK40 hr
Jun 30, 7:57 AM CDTMesoscale DiscussionSPC93 min
Jun 30, 12:53 PM CDTMesoscale DiscussionSPC97 min
Jun 30, 1:54 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 30, 3:47 PM CDTMesoscale DiscussionSPC58 min
Jun 30, 5:04 PM CDTSevere Thunderstorm WarningLZK41 min
Jun 30, 6:14 PM CDTMesoscale DiscussionSPC2 hr
Jul 4, 11:52 AM CDTMesoscale DiscussionSPC53 min
Jul 5, 12:53 AM CDTSevere Thunderstorm WarningLZK37 min
Jul 12, 3:43 AM CDTHeat AdvisoryLZK4 days
Jul 13, 3:25 PM CDTMesoscale DiscussionSPC65 min
Jul 13, 5:17 PM CDTSevere Thunderstorm WarningLZK18 min
Jul 15, 2:51 PM CDTSevere Thunderstorm WarningLZK39 min
Jul 15, 2:55 PM CDTSevere Thunderstorm WarningLZK22 min
Jul 15, 3:32 PM CDTSevere Thunderstorm WarningLZK43 min
Jul 15, 3:36 PM CDTFlash Flood WarningLZK114 min
Jul 16, 2:19 PM CDTMesoscale DiscussionSPC56 min
Jul 16, 3:33 PM CDTSevere Thunderstorm WatchSPC6 hr
Jul 16, 4:53 PM CDTSevere Thunderstorm WarningLZK37 min
Jul 21, 9:59 AM CDTFlash Flood WarningLZK3 hr
Jul 29, 4:48 AM CDTFlash Flood WatchLZK38 hr
Jul 29, 2:01 PM CDTFlash Flood WarningLZK2 hr
Aug 5, 4:19 AM CDTMesoscale DiscussionSPC56 min
Aug 10, 7:16 PM CDTSevere Thunderstorm WarningLZK44 min
Aug 18, 6:08 PM CDTSevere Thunderstorm WarningLZK22 min
Aug 18, 6:34 PM CDTSevere Thunderstorm WarningLZK41 min
Aug 18, 6:51 PM CDTFlash Flood WarningLZK104 min
Aug 18, 7:19 PM CDTFlash Flood WarningLZK76 min
Aug 20, 7:49 AM CDTFlash Flood WarningLZK3 hr
Sep 15, 3:44 AM CDTFlash Flood WatchLZK3 days
Sep 15, 3:04 PM CDTMesoscale DiscussionSPC2 hr
Sep 16, 12:12 AM CDTFlash Flood WarningLZK2 hr
Sep 16, 6:47 AM CDTFlash Flood WarningLZK3 hr
Sep 16, 7:33 AM CDTFlash Flood WarningLZK4 hr
Sep 16, 8:26 AM CDTRiver Flood WarningLZK5 days
Sep 16, 10:06 AM CDTFlash Flood WarningLZK114 min
Sep 16, 3:03 PM CDTFlash Flood WarningLZK3 hr
Sep 16, 5:59 PM CDTFlash Flood WarningLZK2 hr
Sep 21, 10:18 PM CDTSevere Thunderstorm WarningLZK42 min
Sep 21, 11:07 PM CDTSevere Thunderstorm WarningLZK53 min
Oct 1, 5:12 PM CDTMesoscale DiscussionSPC93 min
Oct 1, 6:29 PM CDTSevere Thunderstorm WatchSPC8 hr
Oct 7, 4:57 AM CDTFlash Flood WatchLZK56 hr
Oct 8, 8:00 PM CDTTornado WatchSPC7 hr
Oct 9, 1:39 AM CDTFlash Flood WarningLZK6 hr
Oct 9, 2:38 AM CDTMesoscale DiscussionSPC52 min
Oct 9, 6:19 AM CDTFlash Flood WarningLZK4 hr
Oct 9, 7:37 AM CDTFlash Flood WarningLZK3 hr
Oct 9, 9:35 AM CDTRiver Flood WarningLZK3 days
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZK21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZK21 hr
Oct 10, 9:12 AM CDTRiver Flood AdvisoryLZK22 hr
Oct 10, 9:12 AM CDTRiver Flood AdvisoryLZK22 hr
Oct 12, 10:19 PM CDTDense Fog AdvisoryLZK11 hr
Oct 13, 9:07 AM CDTRiver Flood WarningLZK4 days
Oct 21, 2:51 PM CDTFlash Flood WatchLZK30 hr
Oct 22, 8:00 PM CDTRiver Flood WarningLZK48 hr
Oct 27, 8:14 AM CDTRiver Flood WarningLZK36 hr
Oct 28, 4:06 AM CDTFlash Flood WatchLZK59 hr
Oct 29, 8:38 AM CDTRiver Flood WarningLZK5 days
Oct 29, 1:51 PM CDTTornado WatchSPC7 hr
Oct 29, 3:03 PM CDTMesoscale DiscussionSPC117 min
Oct 29, 7:05 PM CDTMesoscale DiscussionSPC55 min
Oct 29, 7:12 PM CDTFlash Flood WarningLZK6 hr
Oct 30, 12:55 AM CDTFlash Flood WarningLZK5 hr
Oct 30, 6:05 AM CDTAreal Flood WarningLZK12 hr
Nov 4, 7:44 AM CSTRiver Flood WarningLZK23 hr
Nov 26, 1:36 PM CSTFreeze WarningLZK19 hr
Dec 8, 4:09 AM CSTLake Wind AdvisoryLZK36 hr
Dec 13, 12:02 AM CSTDense Fog AdvisoryLZK10 hr
Dec 22, 3:21 PM CSTFlash Flood WatchLZK49 hr
Dec 23, 3:20 AM CSTLake Wind AdvisoryLZK60 hr
Dec 24, 3:22 AM CSTAreal Flood WarningLZK6 hr
Dec 24, 4:01 AM CSTWinter Storm WatchLZK8 hr
Dec 24, 7:45 AM CSTRiver Flood WarningLZK4 days
Dec 24, 9:43 AM CSTAreal Flood WarningLZK4 hr
Dec 24, 10:13 AM CSTAreal Flood WarningLZK4 hr
Dec 24, 12:22 PM CSTWinter Weather AdvisoryLZK18 hr
Dec 24, 2:05 PM CSTAreal Flood WarningLZK4 hr
Dec 24, 6:06 PM CSTAreal Flood WarningLZK14 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.