Alert archive / Florida / Monroe County
Weather alerts in Monroe County, Florida, 2017
97 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Monroe County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 97
- Warnings
- 22
- Watches
- 14
- Advisories
- 20
- Busiest month
- September32 alerts
- Busiest day
- January 23, 201712 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 5 tornado warnings covering Monroe County in 2017 had a tornado report inside them.
Monroe County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 3 | 1 | 67% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Miami, FL: tornado warnings | 46 | 10 | 78% | 19 | 74% | 8 min |
| NWS Miami, FL: severe thunderstorm warnings | 27 | 7 | 74% | 26 | 42% | 12 min |
| NWS Miami, FL: flash flood warnings | 7 | 3 | 57% | 9 | 78% | 45 min |
| NWS Key West, FL: tornado warnings | 3 | 0 | 100% | 1 | 0% | |
| NWS Key West, FL: severe thunderstorm warnings | 1 | 0 | 100% | 0 |
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 4, 1:06 AM EST | Dense Fog Advisory | MFL | 8 hr |
| Jan 6, 2:49 AM EST | Dense Fog Advisory | MFL | 8 hr |
| Jan 7, 12:24 PM EST | Special Weather Statement | MFL | 51 min |
| Jan 22, 3:24 AM EST | Wind Advisory | MFL | 40 hr |
| Jan 22, 8:21 PM EST | Mesoscale Discussion | SPC | 114 min |
| Jan 22, 9:57 PM EST | Tornado Watch | SPC | 8 hr |
| Jan 23, 12:18 AM EST | Mesoscale Discussion | SPC | 117 min |
| Jan 23, 1:56 AM EST | Special Weather Statement | MFL | 64 min |
| Jan 23, 2:22 AM EST | Mesoscale Discussion | SPC | 83 min |
| Jan 23, 2:23 AM EST | Wind Advisory | MFL | 17 hr |
| Jan 23, 2:24 AM EST | Severe Thunderstorm Warning | KEY | 66 min |
| Jan 23, 2:48 AM EST | Special Weather Statement | MFL | 87 min |
| Jan 23, 2:49 AM EST | Special Weather Statement | MFL | 26 min |
| Jan 23, 2:56 AM EST | Tornado Warning | MFL | 34 min |
| Jan 23, 3:35 AM EST | Severe Thunderstorm Warning | MFL | 40 min |
| Jan 23, 1:10 PM EST | Coastal Flood Advisory | KEY | 21 hr |
| Feb 6, 4:24 AM EST | Dense Fog Advisory | MFL | 5 hr |
| Feb 9, 4:45 AM EST | Dense Fog Advisory | MFL | 4 hr |
| Feb 22, 12:20 PM EST | Areal Flood Advisory | KEY | 3 hr |
| Mar 6, 1:36 PM EST | Red Flag Warning | MFL | 10 hr |
| Mar 14, 12:20 AM EDT | Special Weather Statement | MFL | 40 min |
| Mar 22, 7:59 AM EDT | Dense Fog Advisory | MFL | 2 hr |
| Mar 23, 1:47 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 23, 4:53 PM EDT | Special Weather Statement | MFL | 52 min |
| Apr 5, 4:20 PM EDT | Fire Weather Watch | MFL | 36 hr |
| Apr 6, 4:18 PM EDT | Red Flag Warning | MFL | 4 days |
| May 7, 3:21 AM EDT | Red Flag Warning | MFL | 16 hr |
| May 8, 3:10 AM EDT | Red Flag Warning | MFL | 16 hr |
| May 24, 2:49 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 24, 4:55 PM EDT | Special Weather Statement | MFL | 80 min |
| May 24, 7:12 PM EDT | Special Weather Statement | MFL | 93 min |
| May 25, 8:23 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 5, 7:44 PM EDT | Special Weather Statement | MFL | 31 min |
| Jun 6, 5:01 AM EDT | Mesoscale Discussion | SPC | 119 min |
| Jun 6, 7:41 AM EDT | Special Weather Statement | MFL | 64 min |
| Jun 6, 8:54 AM EDT | Areal Flood Advisory | MFL | 4 hr |
| Jun 6, 12:28 PM EDT | Areal Flood Advisory | MFL | 4 hr |
| Jun 6, 7:58 PM EDT | Flash Flood Warning | MFL | 6 hr |
| Jun 7, 2:33 PM EDT | Severe Thunderstorm Warning | MFL | 43 min |
| Jun 7, 6:40 PM EDT | Areal Flood Advisory | KEY | 2 hr |
| Jun 7, 7:19 PM EDT | Areal Flood Advisory | KEY | 116 min |
| Jun 27, 12:04 PM EDT | Mesoscale Discussion | SPC | 86 min |
| Jul 12, 3:37 PM EDT | Special Weather Statement | MFL | 38 min |
| Jul 21, 10:49 AM EDT | Special Weather Statement | MFL | 41 min |
| Jul 25, 3:15 PM EDT | Special Weather Statement | MFL | 30 min |
| Jul 26, 3:58 AM EDT | Heat Advisory | MFL | 12 hr |
| Jul 30, 8:41 PM EDT | Special Weather Statement | MFL | 49 min |
| Jul 31, 3:55 PM EDT | Areal Flood Advisory | KEY | 3 hr |
| Aug 3, 3:59 AM EDT | Heat Advisory | MFL | 15 hr |
| Aug 4, 4:00 AM EDT | Heat Advisory | MFL | 15 hr |
| Aug 18, 4:58 PM EDT | Special Weather Statement | MFL | 47 min |
| Aug 24, 4:24 AM EDT | Flood Watch | MFL | 4 days |
| Aug 25, 11:58 AM EDT | Coastal Flood Statement | MFL | 68 hr |
| Aug 27, 8:05 PM EDT | Flood Watch | MFL | 20 hr |
| Sep 7, 10:56 AM EDT | Hurricane Watch | MFL | 12 hr |
| Sep 7, 10:56 AM EDT | Storm Surge Watch | MFL | 12 hr |
| Sep 7, 11:04 AM EDT | Hurricane Watch | KEY | 13 hr |
| Sep 7, 11:04 AM EDT | Storm Surge Watch | KEY | 12 hr |
| Sep 7, 11:01 PM EDT | Hurricane Warning | MFL | 3 days |
| Sep 7, 11:01 PM EDT | Storm Surge Warning | MFL | 4 days |
| Sep 7, 11:17 PM EDT | Hurricane Warning | KEY | 3 days |
| Sep 7, 11:17 PM EDT | Storm Surge Warning | KEY | 3 days |
| Sep 8, 5:38 PM EDT | Flood Watch | MFL | 60 hr |
| Sep 9, 7:54 AM EDT | Special Weather Statement | MFL | 66 min |
| Sep 9, 9:23 AM EDT | Tornado Warning | MFL | 9 min |
| Sep 9, 9:35 AM EDT | Special Weather Statement | MFL | 40 min |
| Sep 9, 12:09 PM EDT | Tornado Watch | SPC | 12 hr |
| Sep 9, 4:12 PM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 9, 5:34 PM EDT | Tornado Warning | KEY | 26 min |
| Sep 9, 5:56 PM EDT | Tornado Warning | KEY | 49 min |
| Sep 9, 7:07 PM EDT | Tornado Warning | KEY | 23 min |
| Sep 9, 10:26 PM EDT | Mesoscale Discussion | SPC | 94 min |
| Sep 9, 11:45 PM EDT | Tornado Watch | SPC | 12 hr |
| Sep 10, 2:23 AM EDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 4:44 AM EDT | Areal Flood Warning | MFL | 12 hr |
| Sep 10, 6:05 AM EDT | Mesoscale Discussion | SPC | 115 min |
| Sep 10, 6:20 AM EDT | Extreme Wind Warning | KEY | 3 hr |
| Sep 10, 8:32 AM EDT | Mesoscale Discussion | SPC | 118 min |
| Sep 10, 9:17 AM EDT | Special Weather Statement | MFL | 88 min |
| Sep 10, 9:21 AM EDT | Extreme Wind Warning | KEY | 114 min |
| Sep 10, 10:45 AM EDT | Special Weather Statement | MFL | 45 min |
| Sep 10, 11:48 AM EDT | Special Weather Statement | MFL | 87 min |
| Sep 10, 1:13 PM EDT | Special Weather Statement | MFL | 92 min |
| Sep 10, 11:14 PM EDT | Tropical Storm Warning | KEY | 6 hr |
| Sep 10, 11:16 PM EDT | Tropical Storm Warning | MFL | 12 hr |
| Sep 11, 7:53 AM EDT | Coastal Flood Advisory | MFL | 9 hr |
| Oct 2, 3:50 PM EDT | Coastal Flood Statement | KEY | 67 hr |
| Oct 5, 10:53 AM EDT | Coastal Flood Advisory | KEY | 36 hr |
| Oct 7, 2:17 AM EDT | Coastal Flood Advisory | KEY | 23 hr |
| Oct 8, 1:33 AM EDT | Coastal Flood Statement | KEY | 3 days |
| Oct 12, 4:42 PM EDT | Special Weather Statement | MFL | 48 min |
| Oct 28, 10:18 AM EDT | Flood Watch | MFL | 19 hr |
| Oct 28, 11:42 AM EDT | Tropical Storm Watch | KEY | 17 hr |
| Oct 28, 2:34 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 28, 7:57 PM EDT | Mesoscale Discussion | SPC | 3 hr |
| Dec 9, 6:02 AM EST | Mesoscale Discussion | SPC | 118 min |
| Dec 9, 7:54 AM EST | Special Weather Statement | MFL | 81 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Extreme Wind Warning | 2 |
| Severe Thunderstorm Warning | 3 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 23 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 1 |
| Flood Watch | 4 |
| Areal Flood Advisory | 6 |
| Heat | |
| Heat Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 2 |
| Fire | |
| Red Flag Warning | 4 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Tropical | |
| Hurricane Warning | 2 |
| Storm Surge Warning | 2 |
| Tropical Storm Warning | 2 |
| Hurricane Watch | 2 |
| Storm Surge Watch | 2 |
| Tropical Storm Watch | 1 |
| Coast and beach | |
| Coastal Flood Advisory | 4 |
| Coastal Flood Statement | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20162018
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.