Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 2, NWS Miami, FL

January 23, 2017Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Jan 23, 2017, 1:17 AM EST for Palm Beach County, Florida. It was in force for 28 min. 6 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
Jan 23, 2017, 1:17 AM EST (06:17 UTC)
Expired
Jan 23, 2017, 1:45 AM EST
In force
28 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), 136 km from the middle of the area, began a volume at 06:20 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
Jan 23, 1:39 AM ESTTORNADO3 Wnw Fau North Campus, FLEF-1 DAMAGE CONFIRMED BY SURVEY CREW. TREES SNAPPED AT TRUNKS. WINDS ESTIMATED AT 90 MPH
Jan 23, 1:40 AM ESTTSTM WND DMG3 Nnw Fau North Campus, FLA MEDIUM TO LARGE SIZED TREE WAS UPROOTED OFF OF DONALD ROSS ROAD IN PALM BEACH GARDENS. TIME ESTIMATED BY RADAR.
Jan 23, 1:45 AM ESTTSTM WND DMG1 Nnw Juno Beach, FLIN JUNO BEACH... MULITPLE POSTS ON SOCIAL MEDIA SHOW DOWN POWER LINES... FALLEN TREES AND STREET SIGNS DOWN. TIME ESTIMATED BY RADAR.
Jan 23, 1:45 AM ESTTSTM WND DMG1 Nnw Juno Beach, FLIN JUNO BEACH... MULITPLE POSTS ON SOCIAL MEDIA SHOW DOWN POWER LINES... FALLEN TREES... STREET SIGNS DOWN AND DAMAGE TO MAILBOXES. TIME ESTIMATED BY RADAR.
Jan 23, 1:45 AM ESTTORNADO2 W Juno Beach, FLEF-0 DAMAGE CONFIRMED BY SURVEY CREW. TREE DAMAGE. WINDS ESTIMATED AT 75-80 MPH
Jan 23, 1:47 AM ESTTORNADO1 N Juno Beach, FLEF-0 DAMAGE CONFIRMED BY SURVEY CREW. TREE DAMAGE. WINDS ESTIMATED AT 70 MPH

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 22, 9:57 PM ESTTornado WatchSPC8 hr

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 6.3 hours before the alert went out and 112 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 00:00Z on 2017-01-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 635 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 00:00Z on 2017-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 204 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
635 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
1027 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
204 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.7

Open this sounding in Storm Lab

The text

As transmitted.

625 
WFUS52 KMFL 230617
TORMFL
FLC099-230645-
/O.NEW.KMFL.TO.W.0002.170123T0617Z-170123T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
117 AM EST MON JAN 23 2017

The National Weather Service in Miami has issued a

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

* Until 145 AM EST
    
* At 117 AM EST, a severe thunderstorm capable of producing a tornado
  was located near Lion Country Safari Park, or 11 miles northwest of
  Wellington, moving east at 45 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 Gardens, Royal Palm Beach and Loxahatchee Groves around 
  130 AM EST. 
  West Palm Beach, The Acreage and North County Airport around 135 
  AM EST. 
  Jupiter, Riviera Beach, Tequesta, Juno Beach, North Palm Beach, 
  Lake Park, Juno Ridge and Port Of Palm Beach around 145 AM EST. 

Other locations impacted by this tornadic thunderstorm include
Lakeside Green, Mangonia Park, Fau North Campus, Cypress Lakes and
Century Village.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2672 8003 2672 8043 2680 8044 2697 8004
      2697 8003
TIME...MOT...LOC 0617Z 253DEG 40KT 2676 8040 

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

$$

ALM
1 follow-up statement
578 
WWUS52 KMFL 230633
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
133 AM EST MON JAN 23 2017

FLC099-230645-
/O.CON.KMFL.TO.W.0002.000000T0000Z-170123T0645Z/
Palm Beach FL-
133 AM EST MON JAN 23 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM EST FOR
NORTHEASTERN PALM BEACH COUNTY...
    
At 133 AM EST, a severe thunderstorm capable of producing a tornado
was located over North County Airport, or near Palm Beach Gardens,
moving northeast at 45 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...
  West Palm Beach and Palm Beach Gardens around 140 AM EST. 
  Jupiter, Riviera Beach, Tequesta, Juno Beach, North Palm Beach, 
  Lake Park and Juno Ridge around 145 AM EST. 

Other locations impacted by this tornadic thunderstorm include Fau
North Campus.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 2679 8003 2679 8026 2686 8030 2697 8004
      2697 8003
TIME...MOT...LOC 0633Z 246DEG 40KT 2684 8021 

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

$$

ALM

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 22, 11:15 PM ESTSpecial Weather StatementMFLGlades, Hendry60 min
Jan 22, 11:32 PM ESTSpecial Marine WarningMFL28 min
Jan 22, 11:50 PM ESTSpecial Marine WarningMFL25 min
Jan 23, 12:03 AM ESTSpecial Marine WarningMFL57 min
Jan 23, 12:03 AM ESTSpecial Weather StatementMFLCollier, Glades, Hendry, Palm Beach57 min
Jan 23, 12:20 AM ESTSpecial Marine WarningMFL25 min
Jan 23, 12:25 AM ESTSevere Thunderstorm WarningMFLGlades, Hendry, Palm Beach50 min
Jan 23, 12:36 AM ESTSevere Thunderstorm WarningMFLCollier24 min
Jan 23, 12:46 AM ESTSpecial Marine WarningMFL44 min
Jan 23, 12:54 AM ESTSpecial Weather StatementMFLBroward, Collier, Palm Beach66 min
Jan 23, 12:58 AM ESTTornado WarningMFLPalm Beach32 min
Jan 23, 1:03 AM ESTSevere Thunderstorm WarningMFLCollier42 min
Jan 23, 1:12 AM ESTSpecial Marine WarningMFL63 min
Jan 23, 1:25 AM ESTTornado WarningMFLCollier20 min
Jan 23, 1:26 AM ESTSpecial Marine WarningMFL94 min
Jan 23, 1:41 AM ESTTornado WarningMFLPalm Beach10 min
Jan 23, 1:52 AM ESTSpecial Marine WarningMFL83 min
Jan 23, 1:56 AM ESTSpecial Weather StatementMFLBroward, Monroe, Palm Beach64 min
Jan 23, 2:02 AM ESTSevere Thunderstorm WarningMFLPalm Beach43 min
Jan 23, 2:23 AM ESTWind AdvisoryMFLBroward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more17 hr
Jan 23, 2:29 AM ESTSevere Thunderstorm WarningMFLBroward31 min
Jan 23, 2:48 AM ESTSpecial Weather StatementMFLBroward, Miami-Dade, Monroe87 min
Jan 23, 2:49 AM ESTSpecial Weather StatementMFLMonroe26 min
Jan 23, 2:54 AM ESTSevere Thunderstorm WarningMFLBroward36 min
Jan 23, 2:56 AM ESTTornado WarningMFLMiami-Dade, Monroe34 min
Jan 23, 2:57 AM ESTSpecial Marine WarningMFL63 min
Jan 23, 3:06 AM ESTSpecial Marine WarningMFL84 min
Jan 23, 3:35 AM ESTSevere Thunderstorm WarningMFLBroward, Miami-Dade, Monroe40 min
Jan 23, 3:42 AM ESTSpecial Marine WarningMFL48 min
Jan 23, 3:44 AM ESTTornado WarningMFLMiami-Dade19 min
Jan 23, 4:01 AM ESTSpecial Weather StatementMFLMiami-Dade44 min
Jan 23, 4:15 AM ESTSevere Thunderstorm WarningMFLMiami-Dade11 min
Jan 23, 4:19 AM ESTSpecial Marine WarningMFL41 min
Jan 23, 4:55 AM ESTSpecial Marine WarningMFL50 min
Jan 23, 5:43 AM ESTSpecial Marine WarningMFL32 min
Jan 23, 5:43 AM ESTSpecial Marine WarningMFL32 min
Jan 23, 6:12 AM ESTSpecial Marine WarningMFL48 min
Jan 23, 7:03 AM ESTSpecial Weather StatementMFLCollier, Glades, Hendry87 min
Jan 23, 7:45 AM ESTSpecial Marine WarningMFL60 min
Jan 23, 8:30 AM ESTSpecial Weather StatementMFLPalm Beach75 min
Jan 23, 9:52 AM ESTSpecial Weather StatementMFLMiami-Dade53 min
Jan 23, 10:38 AM ESTSpecial Marine WarningMFL82 min
Jan 23, 11:34 AM ESTSpecial Marine WarningMFL56 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.