Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 11, NWS Miami, FL

May 2, 2017Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at May 2, 2017, 5:57 PM EDT for Palm Beach 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
May 2, 2017, 5:57 PM EDT (21:57 UTC)
Expired
May 2, 2017, 6:30 PM EDT
In force
33 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), 127 km from the middle of the area, began a volume at 21:58 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, 10.0 hours before the alert went out and 104 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.

065 
WFUS52 KMFL 022157
TORMFL
FLC099-022230-
/O.NEW.KMFL.TO.W.0011.170502T2157Z-170502T2230Z/

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

The National Weather Service in Miami has issued a

* Tornado Warning for...
  Northeastern Palm Beach County in southeastern Florida...

* Until 630 PM EDT
    
* At 557 PM EDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles northwest of Lion Country Safari Park, or 12
  miles east of Canal Point, moving southeast at 20 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 620 PM EDT. 
  Royal Palm Beach, Loxahatchee Groves and The Acreage around 630 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 2675 8056 2687 8050 2680 8014 2659 8027
TIME...MOT...LOC 2157Z 297DEG 16KT 2680 8044 

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

$$

SI
2 follow-up statements
336 
WWUS52 KMFL 022218
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
618 PM EDT TUE MAY 2 2017

FLC099-022230-
/O.CON.KMFL.TO.W.0011.000000T0000Z-170502T2230Z/
Palm Beach FL-
618 PM EDT TUE MAY 2 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR EAST
CENTRAL PALM BEACH COUNTY...
    
At 617 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Lion Country Safari Park, or near Wellington, moving
southeast at 15 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...
  Wellington, Royal Palm Beach and Loxahatchee Groves around 630 PM 
  EDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or 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 8049 2678 8041 2675 8017 2659 8027
TIME...MOT...LOC 2217Z 294DEG 14KT 2670 8035 

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

$$

SI
456 
WWUS52 KMFL 022226
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
626 PM EDT TUE MAY 2 2017

FLC099-022236-
/O.EXP.KMFL.TO.W.0011.000000T0000Z-170502T2230Z/
Palm Beach FL-
626 PM EDT TUE MAY 2 2017

...THE TORNADO WARNING FOR EAST CENTRAL PALM BEACH COUNTY WILL EXPIRE
AT 630 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Miami.

LAT...LON 2671 8049 2678 8041 2675 8017 2659 8027
TIME...MOT...LOC 2226Z 297DEG 16KT 2669 8032 

$$

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, 5:38 PM EDTTornado WarningMFLPalm Beach22 min
May 2, 5:40 PM EDTSevere Thunderstorm WarningMFLPalm Beach35 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.