Alert archive / Florida / Tornado Warnings in 2013

Tornado Warning 1, NWS Miami, FL

February 14, 2013Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Feb 14, 2013, 4:26 PM EST for Palm Beach County, Florida. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Feb 14, 2013, 4:26 PM EST (21:26 UTC)
Expired
Feb 14, 2013, 5:30 PM EST
In force
64 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 107 km from the middle of the area, began a volume at 21:26 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.

What was reported inside it

TimeReportWhereRemark
Feb 14, 4:33 PM ESTTORNADO1 Se Boynton Beach, FLEMPLOYEE WITNESSED TORNADO IN STORE PARKING LOT. TREES DOWN... CARS MOVED... STOP SIGN BROKEN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 9.4 hours before the alert went out and 81 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, Miami, FL at 12:00Z on 2013-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 782 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2013-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.1939587897Sfc1 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
782 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
745 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

314 
WFUS52 KMFL 142126
TORMFL
FLC099-142230-
/O.NEW.KMFL.TO.W.0001.130214T2126Z-130214T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
426 PM EST THU FEB 14 2013

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL PALM BEACH COUNTY IN SOUTHEAST FLORIDA...
  THIS INCLUDES THE CITIES OF...DELRAY BEACH...BOYNTON BEACH...

* UNTIL 530 PM EST

* AT 425 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR VILLAGE OF 
  GOLF...MOVING EAST AT 10 MPH. 

* THE TORNADO WILL BE NEAR...
  VILLAGE OF GOLF...
  BOYNTON BEACH...
  OCEAN RIDGE...
  AND SURROUNDING COMMUNITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INSIDE A STURDY BUILDING ON THE LOWEST FLOOR...AWAY FROM
EXTERIOR WALLS AND WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT
305.229.4528 TO REPORT SEVERE WEATHER.

&&

LAT...LON 2655 8004 2652 8004 2650 8005 2644 8006
      2645 8014 2651 8018 2658 8004 2658 8003
      2655 8003
TIME...MOT...LOC 2126Z 252DEG 8KT 2649 8013

$$

AK
1 follow-up statement
425 
WWUS52 KMFL 142141
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
441 PM EST THU FEB 14 2013

FLC099-142149-
/O.CAN.KMFL.TO.W.0001.000000T0000Z-130214T2230Z/
PALM BEACH FL-
441 PM EST THU FEB 14 2013

...THE TORNADO WARNING FOR EAST CENTRAL PALM BEACH COUNTY IS
CANCELLED...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE TORNADO SIGNATURE 
HAS DISSIPATED AND THE STORM HAS MOVED INTO THE ATLANTIC WATERS. 
THUS THE TORNADO WARNING HAS BEEN CANCELLED.

LAT...LON 2655 8004 2652 8004 2650 8005 2644 8006
      2645 8014 2651 8018 2658 8004 2658 8003
      2655 8003
TIME...MOT...LOC 2139Z 249DEG 21KT 2652 8004

$$

AK

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 14, 7:52 AM ESTSpecial Weather StatementMFLCollier53 min
Feb 14, 8:57 AM ESTSpecial Weather StatementMFLCollier63 min
Feb 14, 11:16 AM ESTSpecial Marine WarningMFL59 min
Feb 14, 2:14 PM ESTSpecial Marine WarningMFL46 min
Feb 14, 2:23 PM ESTSpecial Weather StatementMFLHendry52 min
Feb 14, 3:03 PM ESTSpecial Weather StatementMFLPalm Beach42 min
Feb 14, 3:38 PM ESTSevere Thunderstorm WarningMFLPalm Beach52 min
Feb 14, 4:11 PM ESTSpecial Marine WarningMFL49 min
Feb 14, 5:53 PM ESTSpecial Weather StatementMFLBroward52 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.