Alert archive / Florida / Tornado Warnings in 2011
Tornado Warning 3, NWS Key West, FL
NWS Key West, FL issued this tornado warning at Dec 27, 2011, 9:29 PM EST for Monroe County, Florida. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 27, 2011, 9:29 PM EST (02:29 UTC)
- Expired
- Dec 27, 2011, 10:00 PM EST
- In force
- 31 min
- Issued by
- NWS Key West, FL
- Area
- Storm-based polygon
County Monroe County, FL
The radar
The Key West radar (KBYX), 6 km from the middle of the area, began a volume at 02:30 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Key West, FL (KEYW), launched 00:00Z, 2.5 hours before the alert went out and 8 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 22 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1053 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
397
WFUS52 KKEY 280229
TORKEY
FLC087-280300-
/O.NEW.KKEY.TO.W.0003.111228T0229Z-111228T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
929 PM EST TUE DEC 27 2011
THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A
* TORNADO WARNING FOR...
LOWER KEYS IN MONROE COUNTY IN FLORIDA...
THIS INCLUDES THE COMMUNITY OF KEY WEST...
* UNTIL 1000 PM EST
* AT 925 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
POSSIBLE WATERSPOUT ABOUT 11 MILES WEST-NORTHWEST OF KEY
WEST...MOVING EAST AT 30 MPH.
* THE TORNADO WILL BE NEAR...
BOCA CHICA BY 955 PM EST...
BIG COPPITT KEY...SHARK KEY...AND BAY POINT BY 1000 PM EST...
WATERSPOUTS THAT MOVE ONSHORE ARE DANGEROUS. IF THREATENING WEATHER
APPROACHES...SEE SHELTER IMMEDIATELY!
PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE KEY WEST
AT 3 0 5...2 9 5...1 3 1 6...EXTENSION 3.
LAT...LON 2453 8201 2458 8185 2461 8193 2461 8192
2457 8182 2463 8172 2464 8179 2465 8178
2466 8176 2460 8169 2463 8170 2462 8163
2466 8170 2466 8171 2468 8171 2466 8159
2472 8156 2458 8160
TIME...MOT...LOC 0228Z 272DEG 25KT 2462 8192
$$
BS1 follow-up statement
102
WWUS52 KKEY 280245
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
945 PM EST TUE DEC 27 2011
FLC087-280300-
/O.CON.KKEY.TO.W.0003.000000T0000Z-111228T0300Z/
LOWER KEYS IN MONROE FL-
945 PM EST TUE DEC 27 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM EST FOR LOWER
KEYS IN MONROE COUNTY...
AT 939 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A POSSIBLE WATERSPOUT...ABOUT 6 MILES NORTHWEST OF KEY
WEST...MOVING EAST AT 30 MPH.
LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO BOCA
CHICA...SHARK KEY...BAY POINT...AND BIG COPPITT KEY.
LAT...LON 2453 8201 2458 8185 2461 8193 2461 8192
2457 8182 2463 8172 2464 8179 2465 8178
2466 8176 2460 8169 2463 8170 2462 8163
2466 8170 2466 8171 2468 8171 2466 8159
2472 8156 2458 8160
TIME...MOT...LOC 0243Z 271DEG 25KT 2461 8182
$$
BSThe office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 7:18 PM EST | Special Marine Warning | KEY | 42 min | |
| Dec 27, 7:56 PM EST | Special Marine Warning | KEY | 49 min | |
| Dec 27, 8:41 PM EST | Special Marine Warning | KEY | 49 min | |
| Dec 27, 9:21 PM EST | Special Marine Warning | KEY | 39 min | |
| Dec 27, 9:54 PM EST | Special Marine Warning | KEY | 51 min | |
| Dec 27, 10:00 PM EST | Tornado Warning | KEY | Monroe | 30 min |
| Dec 27, 10:41 PM EST | Special Marine Warning | KEY | 34 min | |
| Dec 28, 4:27 AM EST | Small Craft Advisory for Hazardous Seas | KEY | 12 hr |
Nearby
Tornado Warnings in Florida, 2011Every tornado warning in 2011Tornadoes in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.