Alert archive / New York / Suffolk County
Weather alerts in Suffolk County, New York, 2015
179 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Suffolk County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 179
- Warnings
- 31
- Watches
- 21
- Advisories
- 75
- Busiest month
- January25 alerts
- Busiest day
- September 10, 201511 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Suffolk County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 11 | 21% | 53 | 85% | 18 min |
| Flash flood warnings | 4 | 4 | 0% | 6 | 100% | 83 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: severe thunderstorm warnings | 34 | 23 | 32% | 130 | 75% | 18 min |
| NWS New York, NY: flash flood warnings | 20 | 15 | 25% | 52 | 92% | 66 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 3, 10:54 PM EST | Dense Fog Advisory | OKX | 11 hr |
| Jan 6, 3:57 PM EST | Wind Chill Advisory | OKX | 41 hr |
| Jan 8, 9:54 PM EST | Wind Advisory | OKX | 12 hr |
| Jan 11, 3:20 AM EST | Winter Weather Advisory | OKX | 36 hr |
| Jan 17, 3:30 PM EST | Freezing Rain Advisory | OKX | 25 hr |
| Jan 18, 3:24 PM EST | Special Weather Statement | OKX | 81 min |
| Jan 18, 3:51 PM EST | Areal Flood Advisory | OKX | 114 min |
| Jan 18, 5:25 PM EST | Special Weather Statement | OKX | 2 hr |
| Jan 18, 5:31 PM EST | Severe Thunderstorm Warning | OKX | 44 min |
| Jan 23, 4:11 AM EST | Winter Weather Advisory | OKX | 39 hr |
| Jan 23, 11:48 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Jan 25, 3:56 AM EST | Blizzard Watch | OKX | 11 hr |
| Jan 25, 3:19 PM EST | Blizzard Warning | OKX | 45 hr |
| Jan 25, 3:29 PM EST | Coastal Flood Watch | OKX | 22 hr |
| Jan 26, 1:33 PM EST | Coastal Flood Warning | OKX | 16 hr |
| Jan 26, 1:33 PM EST | Coastal Flood Advisory | OKX | 17 hr |
| Jan 26, 6:33 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 26, 11:32 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 27, 1:55 AM EST | Winter Storm Warning | OKX | 20 hr |
| Jan 27, 4:28 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 27, 4:56 AM EST | Coastal Flood Statement | OKX | 13 hr |
| Jan 27, 3:52 PM EST | Winter Weather Advisory | OKX | 6 hr |
| Jan 30, 4:06 AM EST | Wind Advisory | OKX | 30 hr |
| Jan 31, 3:34 AM EST | Winter Storm Watch | OKX | 36 hr |
| Jan 31, 3:50 PM EST | Winter Storm Warning | OKX | 47 hr |
| Feb 1, 4:01 PM EST | Winter Weather Advisory | OKX | 41 hr |
| Feb 2, 7:41 AM EST | Areal Flood Advisory | OKX | 2 hr |
| Feb 2, 10:04 AM EST | Areal Flood Advisory | OKX | 3 hr |
| Feb 8, 4:12 AM EST | Winter Weather Advisory | OKX | 44 hr |
| Feb 13, 3:53 AM EST | Winter Storm Watch | OKX | 12 hr |
| Feb 13, 4:00 AM EST | High Wind Watch | OKX | 25 hr |
| Feb 13, 3:43 PM EST | Winter Storm Watch | OKX | 13 hr |
| Feb 13, 3:43 PM EST | Winter Storm Warning | OKX | 33 hr |
| Feb 13, 3:43 PM EST | Winter Weather Advisory | OKX | 48 hr |
| Feb 14, 4:23 AM EST | Blizzard Warning | OKX | 20 hr |
| Feb 14, 4:33 AM EST | Wind Advisory | OKX | 37 hr |
| Feb 14, 3:38 PM EST | High Wind Warning | OKX | 24 hr |
| Feb 14, 3:51 PM EST | Wind Chill Advisory | OKX | 41 hr |
| Feb 16, 3:50 PM EST | Winter Weather Advisory | OKX | 22 hr |
| Feb 19, 3:49 AM EST | Wind Chill Advisory | OKX | 30 hr |
| Feb 20, 4:20 PM EST | Winter Weather Advisory | OKX | 43 hr |
| Feb 28, 3:13 PM EST | Winter Weather Advisory | OKX | 33 hr |
| Mar 1, 1:57 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Mar 1, 3:34 PM EST | Winter Storm Warning | OKX | 12 hr |
| Mar 2, 4:11 PM EST | Winter Weather Advisory | OKX | 36 hr |
| Mar 3, 3:46 PM EST | Winter Storm Watch | OKX | 24 hr |
| Mar 3, 7:01 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Mar 4, 4:23 AM EST | Winter Storm Warning | OKX | 35 hr |
| Mar 4, 3:49 PM EST | Winter Weather Advisory | OKX | 27 hr |
| Mar 10, 6:09 PM EDT | Dense Fog Advisory | OKX | 13 hr |
| Mar 18, 11:51 AM EDT | Wind Advisory | OKX | 7 hr |
| Mar 19, 4:18 AM EDT | Winter Weather Advisory | OKX | 55 hr |
| Mar 26, 6:20 AM EDT | Special Weather Statement | OKX | 3 hr |
| Mar 26, 2:40 PM EDT | Special Weather Statement | OKX | 50 min |
| Mar 26, 3:49 PM EDT | Dense Fog Advisory | OKX | 6 hr |
| Mar 28, 9:51 PM EDT | Winter Weather Advisory | OKX | 8 hr |
| Apr 3, 3:17 PM EDT | Dense Fog Advisory | OKX | 15 hr |
| Apr 10, 2:44 PM EDT | Dense Fog Advisory | OKX | 7 hr |
| Apr 20, 2:14 PM EDT | Dense Fog Advisory | OKX | 14 hr |
| Apr 20, 9:48 PM EDT | Coastal Flood Statement | OKX | 4 hr |
| Apr 22, 3:57 PM EDT | Severe Thunderstorm Warning | OKX | 22 min |
| Apr 22, 4:36 PM EDT | Special Weather Statement | OKX | 54 min |
| Apr 23, 4:00 AM EDT | Freeze Watch | OKX | 12 hr |
| Apr 23, 3:49 PM EDT | Freeze Warning | OKX | 15 hr |
| Apr 24, 3:36 AM EDT | Freeze Watch | OKX | 12 hr |
| Apr 24, 3:47 PM EDT | Freeze Warning | OKX | 17 hr |
| Apr 25, 3:43 PM EDT | Frost Advisory | OKX | 16 hr |
| May 8, 6:36 AM EDT | Dense Fog Advisory | OKX | 3 hr |
| May 8, 3:20 PM EDT | Dense Fog Advisory | OKX | 14 hr |
| May 9, 3:28 PM EDT | Dense Fog Advisory | OKX | 18 hr |
| May 10, 3:32 PM EDT | Dense Fog Advisory | OKX | 12 hr |
| May 11, 3:25 PM EDT | Dense Fog Advisory | OKX | 18 hr |
| May 28, 6:49 AM EDT | Special Weather Statement | OKX | 41 min |
| May 28, 11:54 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 4:26 PM EDT | Mesoscale Discussion | SPC | 64 min |
| May 29, 5:50 PM EDT | Rip Current Statement | OKX | 27 hr |
| May 30, 12:44 AM EDT | Dense Fog Advisory | OKX | 8 hr |
| May 31, 1:01 PM EDT | Flash Flood Watch | OKX | 43 hr |
| Jun 7, 4:52 PM EDT | Rip Current Statement | OKX | 52 hr |
| Jun 19, 4:14 PM EDT | Flood Watch | OKX | 38 hr |
| Jun 20, 6:03 PM EDT | Rip Current Statement | OKX | 25 hr |
| Jun 21, 4:52 AM EDT | Special Weather Statement | OKX | 23 min |
| Jun 23, 10:12 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 2:46 PM EDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 3:35 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 23, 5:58 PM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Jun 23, 6:43 PM EDT | Severe Thunderstorm Warning | OKX | 45 min |
| Jun 23, 7:46 PM EDT | Severe Thunderstorm Warning | OKX | 29 min |
| Jun 23, 8:14 PM EDT | Severe Thunderstorm Warning | OKX | 31 min |
| Jun 23, 8:34 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 27, 4:28 AM EDT | Rip Current Statement | OKX | 64 hr |
| Jul 1, 3:17 AM EDT | Flash Flood Watch | OKX | 3 hr |
| Jul 1, 4:54 AM EDT | Mesoscale Discussion | SPC | 66 min |
| Jul 1, 5:34 AM EDT | Severe Thunderstorm Warning | OKX | 56 min |
| Jul 1, 5:40 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jul 1, 6:20 AM EDT | Severe Thunderstorm Warning | OKX | 55 min |
| Jul 1, 7:59 AM EDT | Rip Current Statement | OKX | 13 hr |
| Jul 14, 2:23 AM EDT | Areal Flood Advisory | OKX | 52 min |
| Jul 15, 1:03 PM EDT | Areal Flood Advisory | OKX | 117 min |
| Jul 20, 5:32 PM EDT | Special Weather Statement | OKX | 28 min |
| Jul 21, 7:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 25, 4:45 PM EDT | Rip Current Statement | OKX | 28 hr |
| Jul 29, 4:39 PM EDT | Rip Current Statement | OKX | 27 hr |
| Jul 30, 2:50 PM EDT | Severe Thunderstorm Warning | OKX | 40 min |
| Jul 30, 3:08 PM EDT | Areal Flood Advisory | OKX | 112 min |
| Jul 30, 4:40 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jul 30, 5:58 PM EDT | Areal Flood Advisory | OKX | 62 min |
| Aug 1, 12:40 PM EDT | Rip Current Statement | OKX | 8 hr |
| Aug 2, 4:06 PM EDT | Rip Current Statement | OKX | 29 hr |
| Aug 3, 4:46 PM EDT | Rip Current Statement | OKX | 28 hr |
| Aug 4, 4:40 AM EDT | Severe Thunderstorm Warning | OKX | 35 min |
| Aug 4, 4:56 AM EDT | Severe Thunderstorm Warning | OKX | 49 min |
| Aug 4, 5:02 AM EDT | Severe Thunderstorm Warning | OKX | 9 min |
| Aug 4, 5:28 AM EDT | Severe Thunderstorm Warning | OKX | 47 min |
| Aug 4, 5:49 AM EDT | Severe Thunderstorm Warning | OKX | 26 min |
| Aug 10, 4:35 PM EDT | Rip Current Statement | OKX | 27 hr |
| Aug 11, 7:28 AM EDT | Special Weather Statement | OKX | 62 min |
| Aug 11, 8:20 AM EDT | Special Weather Statement | OKX | 55 min |
| Aug 11, 9:10 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 11, 10:02 AM EDT | Special Weather Statement | OKX | 43 min |
| Aug 16, 3:09 PM EDT | Areal Flood Advisory | OKX | 66 min |
| Aug 19, 3:14 PM EDT | Rip Current Statement | OKX | 30 hr |
| Aug 21, 4:58 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 21, 5:16 AM EDT | Flash Flood Warning | OKX | 119 min |
| Sep 3, 8:21 AM EDT | Special Weather Statement | OKX | 54 min |
| Sep 3, 4:56 PM EDT | Rip Current Statement | OKX | 28 hr |
| Sep 10, 1:55 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Sep 10, 5:00 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Sep 10, 8:53 AM EDT | Areal Flood Advisory | OKX | 112 min |
| Sep 10, 9:50 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Sep 10, 11:05 AM EDT | Flash Flood Warning | OKX | 3 hr |
| Sep 10, 12:58 PM EDT | Areal Flood Advisory | OKX | 107 min |
| Sep 10, 1:29 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Sep 10, 1:54 PM EDT | Flash Flood Warning | OKX | 111 min |
| Sep 10, 2:25 PM EDT | Flash Flood Watch | OKX | 11 hr |
| Sep 10, 4:06 PM EDT | Areal Flood Advisory | OKX | 114 min |
| Sep 10, 5:10 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Sep 13, 6:59 PM EDT | Special Weather Statement | OKX | 16 min |
| Sep 20, 4:32 PM EDT | Rip Current Statement | OKX | 58 hr |
| Sep 21, 3:26 PM EDT | Rip Current Statement | OKX | 35 hr |
| Sep 23, 3:23 PM EDT | Rip Current Statement | OKX | 13 hr |
| Sep 24, 3:24 PM EDT | Rip Current Statement | OKX | 51 hr |
| Sep 27, 4:55 AM EDT | Rip Current Statement | OKX | 15 hr |
| Sep 30, 3:44 AM EDT | Coastal Flood Statement | OKX | 11 hr |
| Sep 30, 4:09 PM EDT | Coastal Flood Watch | OKX | 37 hr |
| Sep 30, 4:09 PM EDT | Coastal Flood Advisory | OKX | 26 hr |
| Sep 30, 4:09 PM EDT | High Surf Advisory | OKX | 5 days |
| Oct 1, 5:57 PM EDT | Coastal Flood Watch | OKX | 11 hr |
| Oct 1, 5:57 PM EDT | Coastal Flood Advisory | OKX | 24 hr |
| Oct 2, 4:34 PM EDT | Coastal Flood Advisory | OKX | 11 hr |
| Oct 2, 4:34 PM EDT | Coastal Flood Advisory | OKX | 24 hr |
| Oct 3, 3:58 PM EDT | Coastal Flood Advisory | OKX | 26 hr |
| Oct 3, 3:58 PM EDT | Coastal Flood Advisory | OKX | 14 hr |
| Oct 9, 5:34 PM EDT | Special Weather Statement | OKX | 56 min |
| Oct 9, 6:04 PM EDT | Areal Flood Advisory | OKX | 56 min |
| Oct 16, 8:20 AM EDT | Special Weather Statement | OKX | 25 min |
| Oct 16, 11:50 AM EDT | Freeze Watch | OKX | 16 hr |
| Oct 16, 3:05 PM EDT | Freeze Watch | OKX | 37 hr |
| Oct 18, 3:41 AM EDT | Freeze Warning | OKX | 30 hr |
| Oct 23, 3:32 AM EDT | Frost Advisory | OKX | 24 hr |
| Oct 27, 3:54 PM EDT | Coastal Flood Advisory | OKX | 22 hr |
| Oct 28, 7:28 AM EDT | Coastal Flood Statement | OKX | 19 hr |
| Oct 29, 3:57 AM EDT | Special Weather Statement | OKX | 33 min |
| Oct 30, 3:34 PM EDT | Frost Advisory | OKX | 12 hr |
| Nov 5, 3:13 AM EST | Dense Fog Advisory | OKX | 6 hr |
| Nov 6, 2:06 PM EST | Special Weather Statement | OKX | 24 min |
| Nov 6, 2:51 PM EST | Special Weather Statement | OKX | 3 hr |
| Nov 7, 2:46 PM EST | Freeze Watch | OKX | 21 hr |
| Nov 8, 11:47 AM EST | Freeze Warning | OKX | 20 hr |
| Nov 11, 4:22 PM EST | Coastal Flood Advisory | OKX | 17 hr |
| Nov 12, 9:51 AM EST | Coastal Flood Statement | OKX | 69 min |
| Nov 27, 12:53 AM EST | Dense Fog Advisory | OKX | 8 hr |
| Dec 2, 3:46 PM EST | Dense Fog Advisory | OKX | 4 hr |
| Dec 11, 2:14 AM EST | Dense Fog Advisory | OKX | 8 hr |
| Dec 14, 8:45 AM EST | Dense Fog Advisory | OKX | 3 hr |
| Dec 14, 2:35 PM EST | Dense Fog Advisory | OKX | 10 hr |
| Dec 23, 1:09 AM EST | Dense Fog Advisory | OKX | 8 hr |
| Dec 24, 6:44 PM EST | Dense Fog Advisory | OKX | 11 hr |
| Dec 27, 3:47 AM EST | Dense Fog Advisory | OKX | 6 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 archive20142016
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.