Alert archive / Florida / Tornado Warnings in 2008
Tornado Warning 4, NWS Key West, FL
NWS Key West, FL issued this tornado warning at Aug 18, 2008, 2:19 PM EDT for Monroe County, Florida. It was in force for 26 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
- Aug 18, 2008, 2:19 PM EDT (18:19 UTC)
- Expired
- Aug 18, 2008, 2:45 PM EDT
- In force
- 26 min
- Issued by
- NWS Key West, FL
- Area
- Storm-based polygon
County Monroe County, FL
The radar
The Key West radar (KBYX), 13 km from the middle of the area, began a volume at 18:23 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 18, 12:30 PM EDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Key West, FL (KEYW), launched 12:00Z, 6.3 hours before the alert went out and 17 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
- 152 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 901 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS52 KKEY 181819
TORKEY
FLC087-181845-
/O.NEW.KKEY.TO.W.0004.080818T1819Z-080818T1845Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
219 PM EDT MON AUG 18 2008
THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A
* TORNADO WARNING FOR...
LOWER KEYS IN MONROE COUNTY IN FLORIDA...
* UNTIL 245 PM EDT
* AT 218 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
VIOLENT WATERSPOUT NEAR CUDJOE KEY...OR 20 MILES EAST OF KEY
WEST...MOVING NORTHWEST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
UPPER SUGARLOAF KEY...CUDJOE KEY...SUGARLOAF KEY AND BAY POINT BY
225 PM EDT...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.
TORNADOES ASSOCIATED WITH TROPICAL CYCLONES MOVE RAPIDLY...ARE OFTEN
WRAPPED IN HEAVY RAIN...AND ARE DIFFICULT TO SEE OR HEAR UNTIL THEY
ARE VERY CLOSE. SEEK SAFE 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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR CENTRAL FLORIDA.
LAT...LON 2462 8165 2465 8164 2470 8170 2472 8167
2467 8159 2473 8161 2475 8158 2465 8144
2460 8145 2459 8158
TIME...MOT...LOC 1819Z 123DEG 40KT 2462 8147
$$
111 follow-up statement
000
WWUS52 KKEY 181838
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
238 PM EDT MON AUG 18 2008
FLC087-181846-
/O.EXP.KKEY.TO.W.0004.000000T0000Z-080818T1845Z/
LOWER KEYS IN MONROE FL-
236 PM EDT MON AUG 18 2008
...THE TORNADO WARNING FOR LOWER KEYS IN MONROE COUNTY HAS BEEN
CANCELED...
AT 232 PM...NATIONAL WEATHER SERVICE INDICATED THAT THE TORNADO THAT
WAS MOVING ACROSS THE LOWER KEYS NEAR SUGARLOAF HAS DISSIPATED...AND
NO REPORTS OF TORNADOES HAVE BEEN RECEIVED. THEREFORE THE TORNADO
WARNING HAS BEEN CANCELED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR CENTRAL FLORIDA...AND CONDITIONS REMAIN FAVORABLE FOR TORNADO
DEVELOPMENT ALONG RAINBANDS ASSOCIATED WITH TROPICAL STORM FAY.
LAT...LON 2462 8165 2465 8164 2470 8170 2472 8167
2467 8159 2473 8161 2475 8158 2465 8144
2460 8145 2459 8158
TIME...MOT...LOC 1836Z 123DEG 40KT 2472 8165
$$
11The office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 12:37 PM EDT | Tornado Warning | KEY | Monroe | 23 min |
| Aug 18, 1:01 PM EDT | Tornado Warning | KEY | Monroe | 22 min |
| Aug 18, 1:12 PM EDT | Tornado Warning | KEY | Monroe | 33 min |
Nearby
Tornado Warnings in Florida, 2008Every tornado warning in 2008Tornadoes in 2008
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.