Alert archive / Florida / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 39, NWS Melbourne, FL

June 27, 2017Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jun 27, 2017, 6:09 PM EDT for Saint Lucie County, Florida. It was in force for 51 min. 1 report 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: Jun 27, 2017, 6:09 PM EDT (22:09 UTC)
Expired: Jun 27, 2017, 7:00 PM EDT
In force: 51 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Saint Lucie County, FL

What was reported inside it

Time	Report	Where	Remark
Jun 27, 6:40 PM EDT	HAIL 0.7	4 Wnw Port Saint Lucie, FL	DIME SIZED HAIL OF I-95 IN PORT ST LUCIE

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

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 10.2 hours before the alert went out and 120 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: 431 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

581 
WUUS52 KMLB 272209
SVRMLB
FLC111-272300-
/O.NEW.KMLB.SV.W.0039.170627T2209Z-170627T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Melbourne FL
609 PM EDT TUE JUN 27 2017

The National Weather Service in Melbourne has issued a

* Severe Thunderstorm Warning for...
  St. Lucie County in east central Florida...

* Until 700 PM EDT

* At 608 PM EDT, severe thunderstorms were located along a line
  extending from 6 miles west of Lakewood Park to near Saint Lucie
  Airport to near Tradition, moving east at 10 to 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Port Saint Lucie, Fort Pierce, Fort Pierce Inlet, White City and
  Indrio.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2722 8031 2722 8057 2742 8052 2756 8057
      2756 8029 2754 8028 2739 8025
TIME...MOT...LOC 2208Z 312DEG 17KT 2752 8049 2748 8044 2731 8049 

HAIL...1.00IN
WIND...60MPH
 
$$

Cristaldi

3 follow-up statements

632 
WWUS52 KMLB 272220
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
620 PM EDT TUE JUN 27 2017

FLC111-272300-
/O.CON.KMLB.SV.W.0039.000000T0000Z-170627T2300Z/
St. Lucie FL-
620 PM EDT TUE JUN 27 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL ST. LUCIE COUNTY...

At 619 PM EDT, the leading edge of a line of severe thunderstorms 
was located from near Saint Lucie Airport to Fort Pierce North to 
Saint Lucie West to near Tradition, moving east at 10 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Port Saint Lucie, Fort Pierce, Fort Pierce Inlet, White City and
Indrio.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2722 8031 2722 8055 2734 8050 2744 8048
      2756 8050 2756 8029 2754 8028 2739 8025
TIME...MOT...LOC 2219Z 063DEG 29KT 2748 8045 2745 8043 2735 8041 2731
8047

HAIL...1.00IN
WIND...60MPH
 
$$

Cristaldi

976 
WWUS52 KMLB 272234
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
634 PM EDT TUE JUN 27 2017

FLC111-272300-
/O.CON.KMLB.SV.W.0039.000000T0000Z-170627T2300Z/
St. Lucie FL-
634 PM EDT TUE JUN 27 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR EASTERN ST. LUCIE COUNTY...

At 634 PM EDT, severe thunderstorms continued along a line extending 
from near Fort Pierce South to Saint Lucie West to Tradition, moving 
southeast at 10 to 15 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Port Saint Lucie, Fort Pierce, White City, Fort Pierce Inlet and Port
Saint Lucie River Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 2722 8031 2722 8050 2729 8049 2737 8046
      2745 8045 2748 8040 2748 8027 2739 8025
TIME...MOT...LOC 2234Z 039DEG 8KT 2741 8040 2736 8040 2731 8044 

HAIL...1.00IN
WIND...60MPH
 
$$

Cristaldi

200 
WWUS52 KMLB 272300
SVSMLB

Severe Weather Statement
National Weather Service Melbourne FL
700 PM EDT TUE JUN 27 2017

FLC111-272309-
/O.EXP.KMLB.SV.W.0039.000000T0000Z-170627T2300Z/
St. Lucie FL-
700 PM EDT TUE JUN 27 2017

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ST. LUCIE COUNTY WILL
EXPIRE AT 700 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However gusty 
winds frequent lightning and heavy rain will continue with these 
thunderstorms.

LAT...LON 2722 8031 2722 8050 2729 8049 2737 8046
      2745 8045 2748 8040 2748 8027 2739 8025
TIME...MOT...LOC 2259Z 312DEG 17KT 2734 8032 2729 8032 2724 8036 

$$

Cristaldi

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 2:16 PM EDT	Special Marine Warning	MLB		59 min
Jun 27, 2:25 PM EDT	Special Weather Statement	MLB	Volusia	50 min
Jun 27, 2:40 PM EDT	Special Marine Warning	MLB		65 min
Jun 27, 2:49 PM EDT	Special Weather Statement	MLB	Osceola	41 min
Jun 27, 3:20 PM EDT	Special Weather Statement	MLB	Seminole	55 min
Jun 27, 4:11 PM EDT	Special Weather Statement	MLB	Indian River	49 min
Jun 27, 4:14 PM EDT	Special Weather Statement	MLB	Brevard	46 min
Jun 27, 4:37 PM EDT	Severe Thunderstorm Warning	MLB	Brevard, Orange	53 min
Jun 27, 5:01 PM EDT	Severe Thunderstorm Warning	MLB	Brevard	34 min
Jun 27, 5:13 PM EDT	Areal Flood Advisory	MLB	Brevard, Orange, Seminole	92 min
Jun 27, 5:17 PM EDT	Special Weather Statement	MLB	Indian River	43 min
Jun 27, 5:31 PM EDT	Special Weather Statement	MLB	Orange	59 min
Jun 27, 5:45 PM EDT	Special Weather Statement	MLB	Lake	45 min
Jun 27, 6:02 PM EDT	Special Weather Statement	MLB	Saint Lucie	58 min
Jun 27, 6:45 PM EDT	Special Weather Statement	MLB	Lake	45 min
Jun 27, 6:58 PM EDT	Special Weather Statement	MLB	Martin	47 min
Jun 27, 7:03 PM EDT	Special Weather Statement	MLB	Saint Lucie	42 min

Nearby

Severe Thunderstorm Warnings in Florida, 2017 Every severe thunderstorm warning 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.