Alert archive / Florida / Tornado Warnings in 2008
Tornado Warning 10, NWS Key West, FL
NWS Key West, FL issued this tornado warning at Sep 9, 2008, 8:51 AM EDT for Monroe County, Florida. It was in force for 14 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
- Sep 9, 2008, 8:51 AM EDT (12:51 UTC)
- Expired
- Sep 9, 2008, 9:05 AM EDT
- In force
- 14 min
- Issued by
- NWS Key West, FL
- Area
- Storm-based polygon
County Monroe County, FL
The radar
The Miami radar (KAMX), 66 km from the middle of the area, began a volume at 12:53 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
Miami, FL (KMFL), launched 12:00Z, 0.9 hours before the alert went out and 91 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
- 2105 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 782 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 205 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 091251
TORKEY
FLC087-091315-
/O.NEW.KKEY.TO.W.0010.080909T1251Z-080909T1315Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
851 AM EDT TUE SEP 9 2008
THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A
* TORNADO WARNING FOR...
UPPER KEYS IN MONROE COUNTY IN FLORIDA...
* UNTIL 915 AM EDT
* AT 844 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A WATERSPOUT OVER UPPER KEYS IN MONROE COUNTY...OR 10 MILES
SOUTH OF KEY LARGO...MOVING NORTHWEST AT 45 MPH.
* THE TORNADO WILL BE NEAR...
TAVERNIER KEY IN THE UPPER KEYS MONROE COUNTY AT 900 AM 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.
LAT...LON 2505 8046 2506 8046 2506 8047 2503 8048
2498 8054 2499 8056 2502 8055 2502 8052
2504 8052 2507 8048 2507 8046 2506 8047
2505 8044
TIME...MOT...LOC 1249Z 119DEG 39KT 2499 8043
$$
111 follow-up statement
000
WWUS52 KKEY 091305
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
905 AM EDT TUE SEP 9 2008
FLC087-091314-
/O.CAN.KKEY.TO.W.0010.000000T0000Z-080909T1315Z/
UPPER KEYS IN MONROE FL-
904 AM EDT TUE SEP 9 2008
...THE TORNADO WARNING FOR UPPER KEYS IN MONROE COUNTY IS CANCELED...
THE STORM THAT PROMPTED THE TORNADO WARNING HAS MOVED ACROSS
TAVERNIER IS NOW IN THE FLORIDA BAY...AND THE STRONG ROTATION HAS
DECREASED. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELED.
PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE KEY WEST
AT 3 0 5...2 9 5...1 3 1 6...EXTENSION 3.
LAT...LON 2505 8046 2506 8046 2506 8047 2503 8048
2498 8054 2499 8056 2502 8055 2502 8052
2504 8052 2507 8048 2507 8046 2506 8047
2505 8044
TIME...MOT...LOC 1304Z 119DEG 39KT 2507 8059
$$
ALThe office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 12:38 AM EDT | Tornado Warning | KEY | Monroe | 37 min |
| Sep 9, 2:05 PM EDT | Tornado Warning | KEY | Monroe | 25 min |
| Sep 9, 3:00 PM EDT | Tornado Warning | KEY | Monroe | 30 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.