Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 2, NWS Miami, FL

April 10, 2007Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Apr 10, 2007, 5:08 PM EDT for Palm Beach County, Florida. It was in force for 30 min. 2 reports 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: Apr 10, 2007, 5:08 PM EDT (21:08 UTC)
Expired: Apr 10, 2007, 5:38 PM EDT
In force: 30 min
Issued by: NWS Miami, FL
Area: Counties, with a storm outline in the text

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 122 km from the middle of the area, began a volume at 21:09 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

Time	Report	Where	Remark
Apr 10, 5:23 PM EDT	HAIL 0.5	Lantana, FL	PALM BEACH SHERRIFS OFFICER REPORTED MARBLE SIZED HAIL AREA OF LANTANA ROAD AND HAVERHILL
Apr 10, 5:23 PM EDT	HAIL 0.88	Lantana, FL	TRAINED SPOTTER PB7031 REPORTED 3/4 TO 1 INCH HAIL LANTANA/SR 441 AREA

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, 9.1 hours before the alert went out and 96 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 881 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 783 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KMFL 102110
TORMFL
FLC099-102145-
/O.NEW.KMFL.TO.W.0002.070410T2108Z-070410T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
508 PM EDT TUE APR 10 2007

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL PALM BEACH COUNTY IN SOUTH FLORIDA.

* UNTIL 545 PM EDT

* AT 505 PM EDT...THE PALM BEACH COUNTY SHERIFF REPORTED A FUNNEL    
  CLOUD NEAR LANTANA ROAD AND MILITARY TRAIL IN ATLANTIS...MOVING    
  EAST NORTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  LAKE WORTH BY 510 PM EDT.
  WEST PALM BEACH BY 515 PM EDT.

IF YOU ARE NEAR THE PATH OF THIS POSSIBLE TORNADO...SEEK SHELTER IN 
A STURDY BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND 
WINDOWS. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. 
USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND STAY AWAY FROM 
WINDOWS.

LAT...LON 2671 8014 2658 8013 2658 8005 2676 8004

$$

STRASSBERG

1 follow-up statement

000
WWUS52 KMFL 102138
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
535 PM EDT TUE APR 10 2007

FLC099-102145-
/O.CAN.KMFL.TO.W.0002.000000T0000Z-070410T2145Z/
PALM BEACH FL-
535 PM EDT TUE APR 10 2007

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

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE 
THUNDERSTORM WITH THE POSSIBLE TORNADO HAS MOVED OUT OF THE WARNED 
AREA AND OVER THE ATLANTIC NEAR SHORE WATERS. THUS THE TORNADO 
WARNING HAS BEEN CANCELLED. NEVERTHELESS...STRONG TO SEVERE 
THUNDERSTORMS WILL CONTINUE TO AFFECT COASTAL SECTIONS OF PALM BEACH 
COUNTY FOR THE NEXT HOUR OR SO...AND ADDITIONAL FUNNEL CLOUDS AND 
POSSIBLY BRIEF TORNADOES COULD DEVELOP. RESIDENTS SHOULD CONTINUE TO 
KEEP ABREAST OF THE WEATHER CONDITIONS.

LAT...LON 2671 8014 2658 8013 2658 8005 2676 8004

$$

GARCIA

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 2:17 PM EDT	Severe Thunderstorm Warning	MFL	Glades	28 min
Apr 10, 3:56 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	34 min
Apr 10, 4:24 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	36 min
Apr 10, 4:55 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	35 min
Apr 10, 5:05 PM EDT	Special Marine Warning	MFL		55 min
Apr 10, 5:26 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	34 min
Apr 10, 6:00 PM EDT	Special Marine Warning	MFL		60 min
Apr 10, 7:00 PM EDT	Special Marine Warning	MFL		60 min
Apr 10, 7:14 PM EDT	Special Marine Warning	MFL		46 min
Apr 10, 7:57 PM EDT	Special Marine Warning	MFL		93 min

Nearby

Tornado Warnings in Florida, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.