Alert archive / Florida / Tornado Warnings in 2019

Tornado Warning 3, NWS Melbourne, FL

January 24, 2019Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at Jan 24, 2019, 8:43 AM EST for Saint Lucie 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: Jan 24, 2019, 8:43 AM EST (13:43 UTC)
Expired: Jan 24, 2019, 9:01 AM EST
In force: 18 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 94 km from the middle of the area, began a volume at 13:46 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 1.7 hours before the alert went out and 129 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 621 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 375 m²/s²
0-3 km storm-relative helicity: 435 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

As transmitted.

399 
WFUS52 KMLB 241343
TORMLB
FLC111-241415-
/O.NEW.KMLB.TO.W.0003.190124T1343Z-190124T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Melbourne FL
843 AM EST THU JAN 24 2019

The National Weather Service in Melbourne has issued a

* Tornado Warning for...
  Southeastern St. Lucie County in east central Florida...

* Until 915 AM EST.
    
* At 842 AM EST, a severe thunderstorm capable of producing a tornado
  was located over Port Saint Lucie River Park, or near Port Saint
  Lucie, moving northeast at 35 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...
  Saint Lucie Nuclear Power Plant around 850 AM EST.

Other locations impacted by this tornadic thunderstorm include
Hutchinson Island South.

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 2724 8034 2735 8042 2747 8025 2732 8018
TIME...MOT...LOC 1342Z 241DEG 31KT 2732 8033 

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

$$

Kelly

1 follow-up statement

824 
WWUS52 KMLB 241401
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
901 AM EST THU JAN 24 2019

FLC111-241411-
/O.CAN.KMLB.TO.W.0003.000000T0000Z-190124T1415Z/
St. Lucie FL-
901 AM EST THU JAN 24 2019

...THE TORNADO WARNING FOR SOUTHEASTERN ST. LUCIE COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with these thunderstorms.

LAT...LON 2724 8034 2735 8042 2747 8025 2732 8018
TIME...MOT...LOC 1359Z 241DEG 31KT 2740 8017 

$$

Kelly

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 24, 5:17 AM EST	Special Weather Statement	MLB	Lake, Orange, Seminole, Volusia	58 min
Jan 24, 5:34 AM EST	Severe Thunderstorm Warning	MLB	Lake, Orange, Seminole, Volusia	26 min
Jan 24, 6:03 AM EST	Special Marine Warning	MLB		117 min
Jan 24, 6:15 AM EST	Special Weather Statement	MLB	Orange, Seminole, Volusia	60 min
Jan 24, 7:06 AM EST	Special Weather Statement	MLB	Okeechobee	39 min
Jan 24, 7:11 AM EST	Special Weather Statement	MLB	Brevard, Osceola	64 min
Jan 24, 7:19 AM EST	Tornado Warning	MLB	Indian River, Okeechobee	26 min
Jan 24, 7:32 AM EST	Special Marine Warning	MLB		118 min
Jan 24, 7:46 AM EST	Tornado Warning	MLB	Brevard, Indian River	29 min
Jan 24, 8:13 AM EST	Special Weather Statement	MLB	Brevard, Indian River	47 min
Jan 24, 8:40 AM EST	Special Marine Warning	MLB		95 min
Jan 24, 9:08 AM EST	Special Weather Statement	MLB	Martin, Saint Lucie	67 min

Nearby

Tornado Warnings in Florida, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.