Alert archive / Arkansas

Weather alerts in Montgomery County, Arkansas

3,478 weather alerts since 1986, 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 since 1986. Tap one for its archive.

Alerts
3,478
Warnings
1,402
Watches
561
Advisories
193
Busiest year
2011260 alerts
Average year
87over 40 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 100% of tornado reports in Montgomery County fell inside a tornado warning issued on average 9 minutes before, and 88% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20083167%0
200960100%0
2010130100%0
201120575%1100%10 min
201310370%1100%17 min
201510100%0
20164175%1100%15 min
201720100%0
20183167%3100%3 min
202010100%0
202120100%0
2022100100%0
202340100%0
202440100%0
202560100%0
Share of tornado reports inside a tornado warning, by year.

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
2008441175%3100%10 min
2009571574%367%14 min
2010471372%11100%24 min
2011752468%875%28 min
2012281257%1100%16 min
2013451176%7100%22 min
2014441957%786%26 min
2015261254%475%31 min
2016231057%6100%20 min
201717853%5100%20 min
2018251444%1464%19 min
2019261446%1090%28 min
2020451860%989%23 min
202127774%5100%23 min
2022371365%1681%17 min
2023472253%1479%24 min
2024261446%1060%15 min
2025411076%450%23 min

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
200820955%367%32 min
2009241154%0
201014750%8100%105 min
201121767%2100%74 min
20125180%1100%96 min
201321957%7100%92 min
20144175%0
2015221436%3100%214 min
201610550%4100%127 min
20175340%2100%102 min
201811736%4100%114 min
201911373%1100%171 min
2020251252%888%90 min
20215180%0
20227357%367%185 min
202312650%0
20248275%0
202516756%786%213 min

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 22, 4:16 PM CDTSevere Thunderstorm WarningLZK9 min
Aug 22, 3:36 PM CDTSevere Thunderstorm WarningLZK22 min
Aug 20, 8:27 PM CDTSevere Thunderstorm WarningLZK33 min
Aug 20, 7:56 PM CDTSevere Thunderstorm WarningLZK31 min
Aug 20, 7:46 PM CDTSevere Thunderstorm WarningLZK44 min
Jul 19, 11:50 AM CDTExtreme Heat WarningLZK57 hr
Jul 6, 3:21 PM CDTSevere Thunderstorm WarningLZK24 min
Jun 22, 6:20 AM CDTSevere Thunderstorm WarningLZK40 min
Jun 22, 6:03 AM CDTSevere Thunderstorm WarningLZK27 min
Jun 22, 5:43 AM CDTSevere Thunderstorm WarningLZK47 min
Jun 22, 5:04 AM CDTSevere Thunderstorm WarningLZK41 min
Jun 12, 6:43 AM CDTFlash Flood WarningLZK3 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.