Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 10, NWS Miami, FL

May 2, 2017Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at May 2, 2017, 5:38 PM EDT for Palm Beach County, Florida. It was in force for 22 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
May 2, 2017, 5:38 PM EDT (21:38 UTC)
Expired
May 2, 2017, 6:00 PM EDT
In force
22 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 128 km from the middle of the area, began a volume at 21:39 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

Miami, FL (KMFL), launched 12:00Z, 9.6 hours before the alert went out and 106 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 2017-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 506 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 2017-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939Sfc1 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
506 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

378 
WFUS52 KMFL 022138
TORMFL
FLC099-022200-
/O.NEW.KMFL.TO.W.0010.170502T2138Z-170502T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
538 PM EDT TUE MAY 2 2017

The National Weather Service in Miami has issued a

* Tornado Warning for...
  North central Palm Beach County in southeastern Florida...

* Until 600 PM EDT
    
* At 538 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles east of Fremd Village-Padgett Island, or 9
  miles southeast of Canal Point, moving east at 35 mph.

  HAZARD...Tornado and quarter size hail. 

  SOURCE...Radar indicated rotation. 

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely. 

* This dangerous storm will be near...
  Lion Country Safari Park around 555 PM EDT. 
  Royal Palm Beach, Loxahatchee Groves and The Acreage around 600 PM 
  EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 2671 8059 2686 8059 2688 8023 2665 8025
TIME...MOT...LOC 2138Z 272DEG 30KT 2678 8052 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

SI

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 12:48 PM EDTRip Current StatementMFLBroward, Miami-Dade, Palm Beach19 hr
May 2, 4:12 PM EDTSpecial Marine WarningMFL63 min
May 2, 4:14 PM EDTSpecial Weather StatementMFLGlades31 min
May 2, 5:12 PM EDTSpecial Weather StatementMFLPalm Beach33 min
May 2, 5:21 PM EDTSpecial Weather StatementMFLPalm Beach24 min
May 2, 5:40 PM EDTSevere Thunderstorm WarningMFLPalm Beach35 min
May 2, 5:57 PM EDTTornado WarningMFLPalm Beach33 min
May 2, 6:31 PM EDTSpecial Weather StatementMFLPalm Beach44 min
May 2, 6:37 PM EDTSpecial Weather StatementMFLBroward38 min
May 2, 7:03 PM EDTSpecial Weather StatementMFLBroward42 min

Nearby

Tornado Warnings in Florida, 2017Every tornado warning in 2017Tornadoes in 2017

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.