Alert archive / New York / Mesoscale Discussions / 2021

Mesoscale Discussions in New York, September 2021

19 mesoscale discussions in September 2021. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in September 2021. Tap one for its archive.

Mesoscale Discussions
19
Busiest day
September 8, 20213 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

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.

IssuedProductOfficeCountiesLasted
Sep 1, 4:28 PM EDTMesoscale DiscussionSPCBronx, Kings, Nassau, New York, Queens, Richmond2 hr
Sep 1, 6:34 PM EDTMesoscale DiscussionSPCKings, New York, Queens, Richmond56 min
Sep 1, 8:32 PM EDTMesoscale DiscussionSPCBronx, Kings, Nassau, New York, Queens, Richmond and 1 more88 min
Sep 1, 11:20 PM EDTMesoscale DiscussionSPCBronx, Kings, Nassau, New York, Queens, Suffolk and 1 more85 min
Sep 6, 7:34 AM EDTMesoscale DiscussionSPCEssex, Franklin, Hamilton, Herkimer, Jefferson, Lewis and 5 more2 hr
Sep 6, 10:47 AM EDTMesoscale DiscussionSPCClinton, Essex, Franklin, Fulton, Hamilton, Herkimer and 6 more118 min
Sep 8, 4:40 AM EDTMesoscale DiscussionSPCErie, Niagara3 hr
Sep 8, 4:15 PM EDTMesoscale DiscussionSPCAlbany, Delaware, Greene, Orange, Schoharie, Sullivan and 1 more2 hr
Sep 8, 6:30 PM EDTMesoscale DiscussionSPCSaratoga, Washington90 min
Sep 8, 9:25 PM EDTMesoscale DiscussionSPCColumbia, Dutchess, Greene, Orange, Putnam, Rockland and 2 more95 min
Sep 12, 9:14 PM EDTMesoscale DiscussionSPCErie91 min
Sep 13, 12:26 AM EDTMesoscale DiscussionSPCAllegany, Broome, Chemung, Chenango, Cortland, Delaware and 9 more94 min
Sep 13, 4:11 PM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua2 hr
Sep 15, 10:33 AM EDTMesoscale DiscussionSPCAlbany, Broome, Chemung, Chenango, Columbia, Cortland and 20 more2 hr
Sep 15, 3:04 PM EDTMesoscale DiscussionSPCDutchess, Orange, Putnam, Rockland, Westchester116 min
Sep 15, 4:38 PM EDTMesoscale DiscussionSPCAlbany, Columbia, Delaware, Greene, Rensselaer, Schenectady and 3 more67 min
Sep 15, 8:11 PM EDTMesoscale DiscussionSPCDutchess, Orange, Putnam2 hr
Sep 22, 6:13 PM EDTMesoscale DiscussionSPCChautauqua92 min
Sep 23, 1:29 PM EDTMesoscale DiscussionSPCBronx, Kings, Nassau, New York, Queens, Richmond and 2 more61 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

17 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20202022

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.