Alert archive / Florida / Tornado Warnings in 2017

Tornado Warning 36, NWS Miami, FL

September 10, 2017Palm Beach County, Florida

NWS Miami, FL issued this tornado warning at Sep 10, 2017, 9:42 AM EDT for Palm Beach County, Florida. It was in force for 18 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
Sep 10, 2017, 9:42 AM EDT (13:42 UTC)
Expired
Sep 10, 2017, 10:00 AM EDT
In force
18 min
Issued by
NWS Miami, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Palm Beach County, FL

The radar

The Melbourne radar (KMLB), 143 km from the middle of the area, began a volume at 13:45 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 watch it was issued in

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

IssuedProductOfficeLasted
Sep 9, 11:45 PM EDTTornado WatchSPC12 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 1.7 hours before the alert went out and 238 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, Tampa Bay, FL at 12:00Z on 2017-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 103 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, Tampa Bay, FL at 12:00Z on 2017-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
103 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
186 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

831 
WFUS52 KMFL 101342
TORMFL
FLC099-101400-
/O.NEW.KMFL.TO.W.0036.170910T1342Z-170910T1400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Miami FL
942 AM EDT SUN SEP 10 2017

The National Weather Service in Miami has issued a

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

* Until 1000 AM EDT
    
* At 942 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Port Of Palm Beach, or near Riviera Beach, moving
  northwest at 65 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, Schall Circle and 
  Golden Lakes around 945 AM EDT. 
  Juno Beach and Juno Ridge around 950 AM EDT. 
  West Palm Beach, Jupiter, Palm Beach Gardens, North County Airport 
  and The Acreage around 955 AM EDT. 

Other locations impacted by this tornadic thunderstorm include
Lakeside Green, Fau North Campus, Philo Farms, Glen Ridge, Plantation
Mobile Home Park, Limestone Creek, Caloosa, Mangonia Park, Stacey
Street and Jupiter Farms.

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 2692 8003 2663 8003 2691 8047 2696 8043
      2696 8014 2697 8014 2697 8009
TIME...MOT...LOC 1342Z 128DEG 57KT 2676 8002 

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

$$

BAXTER
1 follow-up statement
611 
WWUS52 KMFL 101355
SVSMFL

Severe Weather Statement
National Weather Service Miami FL
955 AM EDT SUN SEP 10 2017

FLC099-101405-
/O.EXP.KMFL.TO.W.0036.000000T0000Z-170910T1400Z/
Palm Beach FL-
955 AM EDT SUN SEP 10 2017

...THE TORNADO WARNING FOR NORTHEASTERN PALM BEACH COUNTY WILL EXPIRE
AT 1000 AM 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.

A tornado watch remains in effect until noon EDT for southeastern
Florida.

LAT...LON 2692 8003 2663 8003 2691 8047 2696 8043
      2696 8014 2697 8014 2697 8009
TIME...MOT...LOC 1355Z 128DEG 57KT 2686 8016 

$$

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 8:14 PM EDTSpecial Marine WarningMFL46 min
Sep 10, 2:23 AM EDTSpecial Marine WarningMFL37 min
Sep 10, 2:45 AM EDTSpecial Marine WarningMFL30 min
Sep 10, 3:05 AM EDTSpecial Marine WarningMFL25 min
Sep 10, 3:29 AM EDTSpecial Marine WarningMFL46 min
Sep 10, 3:46 AM EDTTornado WarningMFLBroward, Palm Beach29 min
Sep 10, 4:19 AM EDTSpecial Marine WarningMFL26 min
Sep 10, 4:44 AM EDTAreal Flood WarningMFLBroward, Collier, Hendry, Miami-Dade, Monroe12 hr
Sep 10, 4:54 AM EDTSpecial Marine WarningMFL36 min
Sep 10, 6:14 AM EDTSpecial Marine WarningMFL16 min
Sep 10, 6:21 AM EDTTornado WarningMFLPalm Beach28 min
Sep 10, 6:55 AM EDTSpecial Marine WarningMFL35 min
Sep 10, 7:16 AM EDTSpecial Marine WarningMFL29 min
Sep 10, 7:28 AM EDTSpecial Marine WarningMFL17 min
Sep 10, 7:35 AM EDTTornado WarningMFLPalm Beach14 min
Sep 10, 7:36 AM EDTTornado WarningMFLBroward, Miami-Dade24 min
Sep 10, 7:52 AM EDTSpecial Marine WarningMFL38 min
Sep 10, 8:08 AM EDTSpecial Marine WarningMFL37 min
Sep 10, 8:29 AM EDTAreal Flood WarningMFLBroward, Collier, Glades, Hendry, Palm Beach12 hr
Sep 10, 8:37 AM EDTAreal Flood WarningMFLBroward, Collier, Hendry, Palm Beach12 hr
Sep 10, 9:17 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe88 min
Sep 10, 9:44 AM EDTSpecial Marine WarningMFL31 min
Sep 10, 10:13 AM EDTSpecial Marine WarningMFL32 min
Sep 10, 10:45 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe45 min
Sep 10, 10:57 AM EDTRiver Flood WarningMFLGlades13 days
Sep 10, 11:48 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe87 min
Sep 10, 12:25 PM EDTExtreme Wind WarningMFLCollier3 hr
Sep 10, 1:13 PM EDTSpecial Weather StatementMFLMiami-Dade, Monroe92 min
Sep 10, 1:23 PM EDTSpecial Marine WarningMFL37 min
Sep 10, 1:30 PM EDTSpecial Weather StatementMFLMiami-Dade90 min
Sep 10, 1:48 PM EDTSpecial Marine WarningMFL27 min
Sep 10, 1:49 PM EDTTornado WarningMFLBroward, Miami-Dade, Palm Beach26 min
Sep 10, 1:55 PM EDTSpecial Weather StatementMFLMiami-Dade65 min
Sep 10, 2:13 PM EDTSpecial Marine WarningMFL32 min
Sep 10, 2:24 PM EDTTornado WarningMFLBroward, Palm Beach21 min
Sep 10, 2:40 PM EDTTornado WarningMFLPalm Beach20 min
Sep 10, 3:10 PM EDTSpecial Marine WarningMFL95 min
Sep 10, 3:12 PM EDTFlash Flood Warning EmergencyMFLCollier3 hr
Sep 10, 3:15 PM EDTTornado WarningMFLMiami-Dade15 min
Sep 10, 3:27 PM EDTExtreme Wind WarningMFLCollier, Hendry2 hr
Sep 10, 3:29 PM EDTSpecial Marine WarningMFL31 min
Sep 10, 3:48 PM EDTTornado WarningMFLPalm Beach27 min
Sep 10, 3:53 PM EDTTornado WarningMFLBroward, Palm Beach37 min
Sep 10, 4:23 PM EDTSpecial Marine WarningMFL37 min
Sep 10, 5:14 PM EDTSpecial Marine WarningMFL16 min
Sep 10, 5:23 PM EDTSpecial Marine WarningMFL97 min
Sep 10, 6:00 PM EDTAreal Flood WarningMFLCollier3 hr
Sep 10, 7:00 PM EDTSpecial Marine WarningMFL30 min
Sep 10, 7:37 PM EDTSpecial Marine WarningMFL23 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.