Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 45, NWS Miami, FL

October 28, 2017Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Oct 28, 2017, 6:10 PM EDT for Palm Beach County, Florida. It was in force for 20 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
Oct 28, 2017, 6:10 PM EDT (22:10 UTC)
Expired
Oct 28, 2017, 6:30 PM EDT
In force
20 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 131 km from the middle of the area, began a volume at 22:14 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
Oct 28, 6:18 PM EDTTORNADO2 Ssw West Palm Beach, FLTORNADO REPORTED AND CAPTURED ON VIDEO BY TRAINED SPOTTER NEAR BELVEDERE RD AND INTERSTATE 95. TIME ESTIMATED VIA RADAR.
Oct 28, 6:23 PM EDTTORNADOWest Palm Beach, FLVIDEO OF A TORNADO NEAR KRAVIS CENTER IN DOWNTOWN WEST PALM BEACH VIA CBS 12 PALM BEACH. TIME ESTIMATED BY RADAR.

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, 10.2 hours before the alert went out and 105 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 2017-10-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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 2017-10-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
31 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
897 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

081 
WFUS52 KMFL 282210
TORMFL
FLC099-282230-
/O.NEW.KMFL.TO.W.0045.171028T2210Z-171028T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
610 PM EDT SAT OCT 28 2017

The National Weather Service in Miami has issued a

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

* Until 630 PM EDT
    
* At 610 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Cloud Lake, or over Palm Beach, moving north at 15
  mph.

  HAZARD...Tornado. 

  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...
  Palm Beach and Palm Beach International Airport around 615 PM EDT. 
  Haverhill and Downtown West Palm Beach around 620 PM EDT. 
  Schall Circle around 625 PM EDT. 
  Riviera Beach, North Palm Beach, Lake Park and Port Of Palm Beach 
  around 630 PM EDT. 

Other locations impacted by this tornadic thunderstorm include
Mangonia Park, Lakeside Green, Stacey Street, Glen Ridge, Century
Village, Westgate-Belvedere Homes, Lake Clarke Shores, Cypress Lakes,
Lake Worth Corridor and Plantation Mobile Home Park.

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 2683 8003 2663 8003 2662 8010 2683 8017
TIME...MOT...LOC 2210Z 181DEG 15KT 2666 8007 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$
1 follow-up statement
678 
WWUS52 KMFL 282220
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
620 PM EDT SAT OCT 28 2017

FLC099-282230-
/O.CON.KMFL.TO.W.0045.000000T0000Z-171028T2230Z/
Palm Beach FL-
620 PM EDT SAT OCT 28 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR EAST
CENTRAL PALM BEACH COUNTY...
    
At 619 PM EDT, a severe thunderstorm capable of producing a tornado
was located over West Palm Beach, moving north at 15 mph.

HAZARD...Tornado. 

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...
  Riviera Beach, North Palm Beach, Lake Park and Port Of Palm Beach 
  around 630 PM EDT. 

Other locations impacted by this tornadic thunderstorm include
Mangonia Park, Lakeside Green, Westgate-Belvedere Homes, Glen Ridge
and Cypress Lakes.

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 2681 8003 2674 8003 2667 8004 2667 8010
      2681 8015
TIME...MOT...LOC 2219Z 181DEG 15KT 2670 8007 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 28, 12:29 AM EDTSmall Craft AdvisoryMFL5 hr
Oct 28, 12:29 AM EDTTropical Storm WarningMFL32 hr
Oct 28, 4:59 AM EDTSmall Craft AdvisoryMFL47 hr
Oct 28, 10:18 AM EDTFlood WatchMFLBroward, Collier, Miami-Dade, Monroe, Palm Beach19 hr
Oct 28, 11:17 AM EDTTropical Storm WatchMFLMiami-Dade18 hr
Oct 28, 11:40 AM EDTRip Current StatementMFLBroward, Palm Beach17 hr
Oct 28, 1:18 PM EDTTornado WarningMFLMiami-Dade27 min
Oct 28, 2:24 PM EDTSpecial Marine WarningMFL36 min
Oct 28, 4:32 PM EDTSpecial Marine WarningMFL43 min
Oct 28, 5:39 PM EDTTornado WarningMFLPalm Beach21 min
Oct 28, 6:14 PM EDTSpecial Marine WarningMFL31 min
Oct 28, 6:26 PM EDTTornado WarningMFLPalm Beach22 min
Oct 28, 6:58 PM EDTSpecial Marine WarningMFL32 min
Oct 28, 7:04 PM EDTAreal Flood AdvisoryMFLPalm Beach3 hr
Oct 28, 7:14 PM EDTAreal Flood AdvisoryMFLPalm Beach3 hr
Oct 28, 7:27 PM EDTSpecial Marine WarningMFL33 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.