Alert archive / Florida / Tornado Warnings in 2008
Tornado Warning 3, NWS Key West, FL
NWS Key West, FL issued this tornado warning at Aug 18, 2008, 1:12 PM EDT for Monroe County, Florida. It was in force for 33 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, 1:12 PM EDT (17:12 UTC)
- Expired
- Aug 18, 2008, 1:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Key West, FL
- Area
- Storm-based polygon
County Monroe County, FL
The radar
The Key West radar (KBYX), 57 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 60 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 181712
TORKEY
FLC087-181745-
/O.NEW.KKEY.TO.W.0003.080818T1712Z-080818T1745Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
112 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...
MIDDLE KEYS IN MONROE COUNTY IN FLORIDA...
* UNTIL 145 PM EDT
* AT 108 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR PIDGEON
KEY...MOVING NORTHWEST AT 39 MPH.
* THE TORNADO WILL BE NEAR...
OHIO KEY AND BAHIA HONDA KEY BY 120 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
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR CENTRAL FLORIDA.
LAT...LON 2475 8151 2479 8146 2476 8133 2480 8130
2478 8126 2474 8129 2472 8127 2473 8117
2469 8112 2468 8117 2473 8118 2470 8127
2465 8124
TIME...MOT...LOC 1712Z 117DEG 34KT 2469 8117
$$
AL2 follow-up statements
000
WWUS52 KKEY 181731
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
131 PM EDT MON AUG 18 2008
FLC087-181745-
/O.CON.KKEY.TO.W.0003.000000T0000Z-080818T1745Z/
LOWER KEYS IN MONROE FL-
130 PM EDT MON AUG 18 2008
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM EDT FOR LOWER
KEYS IN MONROE COUNTY...
AT 126 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED 11 MILES WEST OF
MARATHON...MOVING NORTHWEST AT 39 MPH. THIS TORNADO IS EXPECTED TO
AFFECT NO NAME KEY WITHIN THE NEXT 5 MINUTES.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR CENTRAL FLORIDA.
LAT...LON 2477 8132 2478 8132 2481 8128 2478 8126
2477 8126 2475 8128 2475 8130
TIME...MOT...LOC 1730Z 117DEG 34KT 2477 8129
$$
AL000
WWUS52 KKEY 181741
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
141 PM EDT MON AUG 18 2008
FLC087-181751-
/O.EXP.KKEY.TO.W.0003.000000T0000Z-080818T1745Z/
LOWER KEYS IN MONROE FL-
141 PM EDT MON AUG 18 2008
...THE TORNADO WARNING FOR LOWER KEYS IN MONROE COUNTY WILL EXPIRE AT
145 PM EDT...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT MONDAY EVENING
FOR CENTRAL FLORIDA.
LAT...LON 2477 8132 2478 8132 2481 8128 2478 8126
2477 8126 2475 8128 2475 8130
TIME...MOT...LOC 1741Z 117DEG 34KT 2482 8139
$$
ALThe 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, 2:19 PM EDT | Tornado Warning | KEY | Monroe | 26 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.