Alert archive / New York / Monroe County / Severe Thunderstorm Warnings

Severe Thunderstorm Warnings in Monroe County, New York, 2016

13 severe thunderstorm warnings in 2016. An alert counts here when it covered this county. The archive of severe thunderstorm warnings reaches back to 1986.

Monroe County and its neighbors

Each county as a circle sized by its count in 2016. Tap one for its archive.

Severe Thunderstorm Warnings
13
Busiest month
July4 severe thunderstorm warnings
Busiest day
May 29, 20162 severe thunderstorm warnings

Over time

By month

Warning verification

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

9 of 13 severe thunderstorm warnings covering Monroe County in 2016 had a qualifying storm report inside them; 2 of 5 hail, wind and damage reports fell inside a warning, on average 16 minutes after it went out.

Monroe County, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Severe thunderstorm warnings13931%540%16 min

Each office's whole area, 2016

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Buffalo, NY: severe thunderstorm warnings875636%16283%27 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, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeLasted
May 29, 4:40 PM EDTSevere Thunderstorm WarningBUF35 min
May 29, 5:27 PM EDTSevere Thunderstorm WarningBUF21 min
Jul 14, 1:57 AM EDTSevere Thunderstorm WarningBUF33 min
Jul 15, 12:07 PM EDTSevere Thunderstorm WarningBUF23 min
Jul 18, 5:15 AM EDTSevere Thunderstorm WarningBUF43 min
Jul 18, 1:00 PM EDTSevere Thunderstorm WarningBUF60 min
Aug 12, 2:46 PM EDTSevere Thunderstorm WarningBUF44 min
Aug 13, 3:51 PM EDTSevere Thunderstorm WarningBUF54 min
Aug 13, 4:03 PM EDTSevere Thunderstorm WarningBUF42 min
Sep 10, 7:26 PM EDTSevere Thunderstorm WarningBUF49 min
Sep 10, 8:04 PM EDTSevere Thunderstorm WarningBUF41 min
Sep 17, 6:37 PM EDTSevere Thunderstorm WarningBUF53 min
Sep 17, 7:30 PM EDTSevere Thunderstorm WarningBUF60 min

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20152017

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.