Alert archive / New York / Orange County
Weather alerts in Orange County, New York, 2009
163 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Orange County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 163
- Warnings
- 46
- Watches
- 24
- Advisories
- 53
- Busiest month
- July55 alerts
- Busiest day
- July 29, 200911 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Orange County in 2009 had a tornado report inside them; 1 of 1 tornado reports fell inside a warning, on average 7 minutes after it went out.
Orange County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 1 | 100% | 7 min |
| Severe thunderstorm warnings | 24 | 14 | 42% | 17 | 76% | 24 min |
| Flash flood warnings | 9 | 5 | 44% | 7 | 86% | 54 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS New York, NY: tornado warnings | 12 | 1 | 92% | 3 | 33% | 7 min |
| NWS New York, NY: severe thunderstorm warnings | 119 | 61 | 49% | 154 | 85% | 25 min |
| NWS New York, NY: flash flood warnings | 45 | 27 | 40% | 84 | 80% | 41 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 5, 3:27 PM EST | Winter Storm Watch | OKX | 13 hr |
| Jan 6, 4:15 AM EST | Winter Storm Warning | OKX | 18 hr |
| Jan 6, 10:29 PM EST | Ice Storm Warning | OKX | 20 hr |
| Jan 7, 12:10 AM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 7, 6:08 AM EST | Mesoscale Discussion | SPC | 3 hr |
| Jan 9, 3:51 AM EST | Winter Storm Watch | OKX | 11 hr |
| Jan 9, 3:12 PM EST | Winter Storm Warning | OKX | 33 hr |
| Jan 9, 3:12 PM EST | Winter Weather Advisory | OKX | 42 hr |
| Jan 10, 7:58 PM EST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 3:07 PM EST | Winter Weather Advisory | OKX | 25 hr |
| Jan 17, 5:27 AM EST | Wind Chill Advisory | OKX | 4 hr |
| Jan 17, 4:08 PM EST | Winter Weather Advisory | OKX | 23 hr |
| Jan 26, 4:04 PM EST | Winter Storm Watch | OKX | 23 hr |
| Jan 27, 2:34 PM EST | Winter Storm Warning | OKX | 30 hr |
| Jan 28, 12:31 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Jan 28, 7:53 AM EST | Mesoscale Discussion | SPC | 5 hr |
| Feb 3, 4:03 AM EST | Winter Weather Advisory | OKX | 23 hr |
| Feb 11, 3:06 AM EST | Flood Watch | OKX | 55 hr |
| Feb 11, 2:56 PM EST | Wind Advisory | OKX | 35 hr |
| Feb 28, 3:37 AM EST | Winter Storm Watch | OKX | 27 hr |
| Mar 1, 3:48 AM EST | Winter Storm Warning | OKX | 39 hr |
| Mar 29, 7:49 PM EDT | Severe Thunderstorm Warning | OKX | 56 min |
| Apr 3, 3:58 PM EDT | Wind Advisory | OKX | 28 hr |
| Apr 29, 2:50 PM EDT | Frost Advisory | OKX | 17 hr |
| May 9, 6:47 PM EDT | Mesoscale Discussion | SPC | 88 min |
| May 12, 3:21 PM EDT | Frost Advisory | OKX | 17 hr |
| May 15, 10:44 PM EDT | Dense Fog Advisory | OKX | 11 hr |
| May 16, 6:29 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| May 18, 4:02 AM EDT | Freeze Warning | OKX | 28 hr |
| May 24, 11:49 AM EDT | Mesoscale Discussion | SPC | 116 min |
| May 24, 4:24 PM EDT | Severe Thunderstorm Warning | OKX | 32 min |
| Jun 9, 6:01 AM EDT | Mesoscale Discussion | SPC | 59 min |
| Jun 12, 12:24 AM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jun 15, 2:49 PM EDT | Severe Thunderstorm Warning | OKX | 41 min |
| Jun 15, 3:27 PM EDT | Severe Thunderstorm Warning | OKX | 48 min |
| Jun 15, 4:35 PM EDT | Areal Flood Advisory | OKX | 98 min |
| Jun 18, 8:39 PM EDT | Areal Flood Advisory | OKX | 81 min |
| Jun 19, 3:34 PM EDT | Flood Watch | OKX | 37 hr |
| Jun 25, 5:30 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 25, 8:21 PM EDT | Mesoscale Discussion | SPC | 54 min |
| Jun 26, 2:19 PM EDT | Mesoscale Discussion | SPC | 56 min |
| Jun 26, 2:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 3:06 PM EDT | Severe Thunderstorm Warning | OKX | 54 min |
| Jun 26, 3:55 PM EDT | Severe Thunderstorm Warning | OKX | 65 min |
| Jun 26, 4:01 PM EDT | Severe Thunderstorm Warning | OKX | 59 min |
| Jun 26, 4:25 PM EDT | Flash Flood Warning | OKX | 95 min |
| Jun 26, 4:45 PM EDT | Severe Thunderstorm Warning | OKX | 45 min |
| Jun 26, 5:26 PM EDT | Flash Flood Warning | OKX | 2 hr |
| Jun 30, 10:57 AM EDT | Mesoscale Discussion | SPC | 93 min |
| Jun 30, 11:37 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 30, 1:34 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Jun 30, 2:18 PM EDT | Mesoscale Discussion | SPC | 57 min |
| Jun 30, 2:52 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Jun 30, 3:52 PM EDT | Severe Thunderstorm Warning | OKX | 8 min |
| Jun 30, 4:25 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 1, 12:03 PM EDT | Mesoscale Discussion | SPC | 87 min |
| Jul 1, 3:49 PM EDT | Flash Flood Watch | OKX | 30 hr |
| Jul 1, 5:40 PM EDT | Areal Flood Advisory | OKX | 50 min |
| Jul 1, 5:57 PM EDT | Flash Flood Warning | OKX | 93 min |
| Jul 1, 6:26 PM EDT | Severe Thunderstorm Warning | OKX | 50 min |
| Jul 2, 6:12 AM EDT | Areal Flood Advisory | OKX | 48 min |
| Jul 2, 3:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 11:05 AM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 7, 2:00 PM EDT | Mesoscale Discussion | SPC | 90 min |
| Jul 7, 4:41 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 7, 10:25 PM EDT | Severe Thunderstorm Warning | OKX | 48 min |
| Jul 16, 12:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 16, 4:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 16, 4:55 PM EDT | Mesoscale Discussion | SPC | 65 min |
| Jul 16, 6:16 PM EDT | Mesoscale Discussion | SPC | 59 min |
| Jul 17, 6:14 AM EDT | Dense Fog Advisory | OKX | 2 hr |
| Jul 17, 3:11 PM EDT | Severe Thunderstorm Warning | OKX | 49 min |
| Jul 17, 3:12 PM EDT | Mesoscale Discussion | SPC | 93 min |
| Jul 17, 9:31 PM EDT | Areal Flood Advisory | OKX | 89 min |
| Jul 17, 9:44 PM EDT | Severe Thunderstorm Warning | OKX | 46 min |
| Jul 17, 10:10 PM EDT | Severe Thunderstorm Warning | OKX | 50 min |
| Jul 17, 10:43 PM EDT | Flash Flood Warning | OKX | 102 min |
| Jul 21, 10:36 AM EDT | Areal Flood Advisory | OKX | 114 min |
| Jul 24, 8:35 PM EDT | Areal Flood Advisory | OKX | 55 min |
| Jul 24, 9:30 PM EDT | Areal Flood Advisory | OKX | 60 min |
| Jul 25, 11:04 PM EDT | Areal Flood Advisory | OKX | 86 min |
| Jul 25, 11:47 PM EDT | Flash Flood Warning | OKX | 118 min |
| Jul 26, 4:35 AM EDT | Flash Flood Watch | OKX | 19 hr |
| Jul 26, 3:14 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 3:51 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 26, 5:51 PM EDT | Severe Thunderstorm Warning | OKX | 39 min |
| Jul 26, 6:24 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Jul 26, 6:37 PM EDT | Mesoscale Discussion | SPC | 113 min |
| Jul 27, 1:43 PM EDT | Severe Thunderstorm Warning | OKX | 32 min |
| Jul 27, 2:20 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 27, 2:47 PM EDT | Areal Flood Advisory | OKX | 88 min |
| Jul 27, 3:34 PM EDT | Severe Thunderstorm Warning | OKX | 41 min |
| Jul 27, 6:39 PM EDT | Areal Flood Advisory | OKX | 51 min |
| Jul 29, 4:21 AM EDT | Flash Flood Watch | OKX | 24 hr |
| Jul 29, 12:22 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jul 29, 12:49 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 29, 1:35 PM EDT | Areal Flood Advisory | OKX | 115 min |
| Jul 29, 2:22 PM EDT | Mesoscale Discussion | SPC | 23 min |
| Jul 29, 2:35 PM EDT | Areal Flood Advisory | OKX | 115 min |
| Jul 29, 2:39 PM EDT | Severe Thunderstorm Warning | OKX | 57 min |
| Jul 29, 2:58 PM EDT | Tornado Warning | OKX | 30 min |
| Jul 29, 5:05 PM EDT | Mesoscale Discussion | SPC | 55 min |
| Jul 29, 6:42 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Jul 29, 7:14 PM EDT | Mesoscale Discussion | SPC | 61 min |
| Jul 29, 8:37 PM EDT | Areal Flood Advisory | OKX | 113 min |
| Jul 29, 10:16 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Jul 30, 3:50 PM EDT | Flash Flood Watch | OKX | 27 hr |
| Jul 31, 10:20 AM EDT | Mesoscale Discussion | SPC | 85 min |
| Jul 31, 1:18 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 31, 1:45 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 2, 1:40 PM EDT | Areal Flood Advisory | OKX | 95 min |
| Aug 9, 7:11 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 11:57 PM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 10, 12:37 AM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 10, 4:40 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 5:09 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 10, 7:01 PM EDT | Severe Thunderstorm Warning | OKX | 44 min |
| Aug 10, 7:30 PM EDT | Severe Thunderstorm Warning | OKX | 45 min |
| Aug 10, 7:40 PM EDT | Areal Flood Advisory | OKX | 50 min |
| Aug 10, 8:09 PM EDT | Severe Thunderstorm Warning | OKX | 51 min |
| Aug 10, 8:15 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 10, 8:30 PM EDT | Areal Flood Advisory | OKX | 2 hr |
| Aug 12, 3:42 PM EDT | Areal Flood Advisory | OKX | 93 min |
| Aug 12, 5:31 PM EDT | Areal Flood Advisory | OKX | 89 min |
| Aug 12, 7:05 PM EDT | Areal Flood Advisory | OKX | 115 min |
| Aug 12, 7:29 PM EDT | Flash Flood Warning | OKX | 3 hr |
| Aug 13, 1:07 AM EDT | Areal Flood Advisory | OKX | 113 min |
| Aug 13, 4:35 AM EDT | Flash Flood Watch | OKX | 10 hr |
| Aug 19, 1:21 PM EDT | Mesoscale Discussion | SPC | 84 min |
| Aug 21, 10:01 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Aug 21, 10:47 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 21, 1:58 PM EDT | Mesoscale Discussion | SPC | 92 min |
| Aug 21, 2:37 PM EDT | Severe Thunderstorm Warning | OKX | 38 min |
| Aug 21, 3:08 PM EDT | Tornado Warning | OKX | 22 min |
| Aug 21, 3:20 PM EDT | Areal Flood Advisory | OKX | 115 min |
| Aug 21, 3:37 PM EDT | Flash Flood Watch | OKX | 36 hr |
| Aug 22, 1:28 AM EDT | Areal Flood Advisory | OKX | 3 hr |
| Aug 22, 5:00 PM EDT | Areal Flood Advisory | OKX | 90 min |
| Aug 22, 11:44 PM EDT | Areal Flood Advisory | OKX | 61 min |
| Aug 23, 3:54 PM EDT | Areal Flood Advisory | OKX | 81 min |
| Sep 19, 3:44 PM EDT | Frost Advisory | OKX | 14 hr |
| Oct 6, 4:40 PM EDT | Wind Advisory | OKX | 28 hr |
| Oct 10, 4:22 AM EDT | Frost Advisory | OKX | 29 hr |
| Oct 10, 3:22 PM EDT | Freeze Watch | OKX | 24 hr |
| Oct 11, 4:14 AM EDT | Freeze Warning | OKX | 29 hr |
| Oct 14, 3:50 PM EDT | Freeze Warning | OKX | 12 hr |
| Oct 18, 3:24 PM EDT | Freeze Warning | OKX | 18 hr |
| Oct 24, 5:37 PM EDT | Areal Flood Advisory | OKX | 4 hr |
| Nov 27, 3:51 AM EST | Wind Advisory | OKX | 36 hr |
| Dec 3, 6:33 AM EST | Severe Thunderstorm Warning | OKX | 42 min |
| Dec 5, 5:36 PM EST | Winter Weather Advisory | OKX | 5 hr |
| Dec 8, 5:23 AM EST | Winter Weather Advisory | OKX | 28 hr |
| Dec 8, 2:06 PM EST | Flash Flood Watch | OKX | 21 hr |
| Dec 8, 11:32 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 9, 6:36 AM EST | Winter Storm Warning | OKX | 3 hr |
| Dec 13, 9:54 AM EST | Freezing Rain Advisory | OKX | 8 hr |
| Dec 18, 4:02 AM EST | Winter Storm Watch | OKX | 36 hr |
| Dec 18, 3:57 PM EST | Winter Storm Warning | OKX | 43 hr |
| Dec 19, 7:25 PM EST | Mesoscale Discussion | SPC | 5 hr |
| Dec 25, 4:20 AM EST | Freezing Rain Advisory | OKX | 28 hr |
| Dec 25, 5:03 PM EST | Mesoscale Discussion | SPC | 6 hr |
| Dec 29, 3:54 AM EST | Wind Advisory | OKX | 15 hr |
| Dec 31, 3:52 AM EST | Winter Weather Advisory | OKX | 25 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 24 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 9 |
| Mesoscale Discussion | 40 |
| Flooding | |
| Flash Flood Warning | 9 |
| Flash Flood Watch | 7 |
| Flood Watch | 2 |
| Areal Flood Advisory | 32 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Warning | 6 |
| Winter Storm Watch | 5 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 4 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.