Alert archive / Florida / Tornado Warnings in 2013

Tornado Warning 1, NWS Key West, FL

June 5, 2013Monroe County, Florida

NWS Key West, FL issued this tornado warning at Jun 5, 2013, 10:37 PM EDT for Monroe County, Florida. It was in force for 38 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
Jun 5, 2013, 10:37 PM EDT (02:37 UTC)
Expired
Jun 5, 2013, 11:15 PM EDT
In force
38 min
Issued by
NWS Key West, FL
Area
Storm-based polygon

County Monroe County, FL

The radar

The Key West radar (KBYX), 64 km from the middle of the area, began a volume at 02:39 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, 2.6 hours before the alert went out and 67 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.

Skew-T log-pSkew-T log-p diagram, Key West, FL at 00:00Z on 2013-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1531 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Key West, FL at 00:00Z on 2013-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1531 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

053 
WFUS52 KKEY 060237
TORKEY
FLC087-060315-
/O.NEW.KKEY.TO.W.0001.130606T0237Z-130606T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
1037 PM EDT WED JUN 5 2013

THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A

* TORNADO WARNING FOR...
  MIDDLE KEYS IN MONROE COUNTY IN FLORIDA...
  THIS INCLUDES THE COMMUNITIES OF...EAST END OF SEVEN MILE BRIDGE...
  MARATHON...

* UNTIL 1115 PM EDT

* AT 1034 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES SOUTH OF
  BOOT KEY...OR 9 MILES SOUTH OF EAST END OF SEVEN MILE BRIDGE...
  MOVING NORTH AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  PIDGEON KEY...EAST END OF SEVEN MILE BRIDGE...KNIGHT KEY AND BOOT
  KEY BY 1110 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 2471 8114 2471 8116 2471 8114 2472 8112
      2472 8110 2475 8104 2475 8103 2472 8103
      2471 8106 2469 8107 2468 8111
TIME...MOT...LOC 0236Z 168DEG 13KT 2457 8112

$$
JOHNSON

The office that day

Everything else NWS Key West, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 5, 8:37 PM EDTSpecial Marine WarningKEY53 min
Jun 5, 8:54 PM EDTSpecial Marine WarningKEY66 min
Jun 5, 9:01 PM EDTSpecial Marine WarningKEY59 min
Jun 5, 9:12 PM EDTSpecial Marine WarningKEY63 min
Jun 5, 9:21 PM EDTSmall Craft AdvisoryKEY14 hr
Jun 5, 9:28 PM EDTSpecial Marine WarningKEY62 min
Jun 5, 9:40 PM EDTSpecial Marine WarningKEY65 min
Jun 5, 10:20 PM EDTSpecial Marine WarningKEY55 min
Jun 5, 10:52 PM EDTSpecial Marine WarningKEY53 min
Jun 5, 11:05 PM EDTTornado WarningKEYMonroe40 min
Jun 5, 11:19 PM EDTSpecial Marine WarningKEY56 min
Jun 5, 11:40 PM EDTSpecial Marine WarningKEY65 min
Jun 6, 12:12 AM EDTSpecial Marine WarningKEY48 min
Jun 6, 12:51 AM EDTSpecial Marine WarningKEY54 min
Jun 6, 3:32 AM EDTSpecial Marine WarningKEY28 min
Jun 6, 3:50 PM EDTSmall Craft AdvisoryKEY13 hr
Jun 6, 4:15 PM EDTSpecial Marine WarningKEY60 min
Jun 6, 4:56 PM EDTSpecial Marine WarningKEY64 min
Jun 6, 5:04 PM EDTSpecial Marine WarningKEY56 min
Jun 6, 5:43 PM EDTSpecial Marine WarningKEY62 min
Jun 6, 5:49 PM EDTSpecial Marine WarningKEY56 min
Jun 6, 6:32 PM EDTSpecial Marine WarningKEY58 min
Jun 6, 6:39 PM EDTSpecial Marine WarningKEY51 min

Nearby

Tornado Warnings in Florida, 2013Every tornado warning in 2013Tornadoes in 2013

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.