Alert archive / Florida / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Melbourne, FL

May 22, 2012Indian River County, Okeechobee County, Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 22, 2012, 3:00 PM EDT for Indian River County, Okeechobee County, Saint Lucie County, Florida. It was in force for 60 min. 4 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
May 22, 2012, 3:00 PM EDT (19:00 UTC)
Expired
May 22, 2012, 4:00 PM EDT
In force
60 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Indian River County, FL, Okeechobee County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 66 km from the middle of the area, began a volume at 19:02 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
May 22, 3:02 PM EDTHAIL 07 N Fort Pierce, FLQUARTER SIZE HAIL AND ESTIMATED WIND GUST TO 50 MPH IN LAKEWOOD PARK.
May 22, 3:06 PM EDTHAIL 13 Wnw Indrio, FLSKYWARN SPOTTER OBSERVED DIME TO QUARTER SIZE HAIL IN LAKEWOOD PARK SECTION OF FORT PIERCE.
May 22, 3:20 PM EDTTSTM WND GST 63Saint Lucie Airport, FL55 KT/63MPH THUNDERSTORM WIND GUST AT KFPR.
May 22, 3:35 PM EDTHAIL 1.25Lakewood Park, FLWPTV RELAYED REPORT FROM PUBLIC OF DIME TO HALF DOLLAR SIZE HAIL.

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, 7.0 hours before the alert went out and 101 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, Cape Canaveral, FL at 12:00Z on 2012-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 403 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, Cape Canaveral, FL at 12:00Z on 2012-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
403 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1231 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

131 
WUUS52 KMLB 221900
SVRMLB
FLC061-093-111-222000-
/O.NEW.KMLB.SV.W.0039.120522T1900Z-120522T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
300 PM EDT TUE MAY 22 2012

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN INDIAN RIVER COUNTY IN FLORIDA
  EAST CENTRAL OKEECHOBEE COUNTY IN FLORIDA
  NORTHERN ST. LUCIE COUNTY IN FLORIDA

* UNTIL 400 PM EDT.

* AT 257 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  LAKEWOOD PARK...OR NEAR INDRIO...AND MOVING EAST AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
  VERO BEACH SOUTH...VERO BEACH HIGHLANDS...SAINT LUCIE VILLAGE AND
  SOUTH BEACH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.

&&

LAT...LON 2744 8034 2746 8075 2773 8069 2763 8034
      2762 8033 2759 8032 2759 8031 2756 8031
TIME...MOT...LOC 1900Z 251DEG 15KT 2755 8040

$$


MOSES
3 follow-up statements
229 
WWUS52 KMLB 221909
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
309 PM EDT TUE MAY 22 2012

FLC093-221917-
/O.CAN.KMLB.SV.W.0039.000000T0000Z-120522T2000Z/
OKEECHOBEE-
309 PM EDT TUE MAY 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL OKEECHOBEE COUNTY
IS CANCELLED...

LAT...LON 2746 8033 2744 8043 2745 8050 2763 8056
      2766 8045 2763 8034 2762 8033 2759 8032
      2759 8031 2756 8031
TIME...MOT...LOC 1907Z 250DEG 14KT 2756 8038

$$

FLC061-111-222000-
/O.CON.KMLB.SV.W.0039.000000T0000Z-120522T2000Z/
ST. LUCIE-INDIAN RIVER-
309 PM EDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN INDIAN RIVER AND NORTH CENTRAL ST. LUCIE COUNTIES...

AT 302 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR LAKEWOOD PARK...OR NEAR INDRIO...MOVING EAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAINT
LUCIE VILLAGE...MOORINGS OF VERO BEACH...SOUTH BEACH AND FLORALTON
BEACH

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING QUARTER SIZE HAIL OVER FORT 
PIERCE AND LAKEWOOD PARK. IF YOU ARE IN THE PATH OF THE STORM...SEEK 
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 2746 8033 2744 8043 2745 8050 2763 8056
      2766 8045 2763 8034 2762 8033 2759 8032
      2759 8031 2756 8031
TIME...MOT...LOC 1907Z 250DEG 14KT 2756 8038

$$


MOSES
430 
WWUS52 KMLB 221930
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
330 PM EDT TUE MAY 22 2012

FLC061-111-222000-
/O.CON.KMLB.SV.W.0039.000000T0000Z-120522T2000Z/
ST. LUCIE-INDIAN RIVER-
330 PM EDT TUE MAY 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN INDIAN RIVER AND NORTH CENTRAL ST. LUCIE COUNTIES...

AT 326 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR QUEENS COVE...OR NEAR INDRIO...MOVING EAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAINT 
LUCIE VILLAGE...MOORINGS OF VERO BEACH...SOUTH BEACH AND FORT PIERCE 
NORTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS OF 63 MPH AT 
SAINT LUCIE COUNTY AIRPORT AND QUARTER SIZED HAIL IN LAKEWOOD PARK 
AND INDRIO. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS!

&&

LAT...LON 2746 8033 2744 8043 2745 8050 2763 8056
      2766 8045 2763 8034 2762 8033 2759 8032
      2759 8031 2756 8031
TIME...MOT...LOC 1927Z 279DEG 13KT 2752 8033

$$


MOSES
891 
WWUS52 KMLB 221953
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
353 PM EDT TUE MAY 22 2012

FLC061-111-222003-
/O.EXP.KMLB.SV.W.0039.000000T0000Z-120522T2000Z/
ST. LUCIE-INDIAN RIVER-
353 PM EDT TUE MAY 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN INDIAN RIVER AND
NORTH CENTRAL ST. LUCIE COUNTIES WILL EXPIRE AT 400 PM EDT...

THE SEVERE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND MOVED 
OFFSHORE...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 2746 8033 2744 8043 2745 8050 2763 8056
      2766 8045 2763 8034 2762 8033 2759 8032
      2759 8031 2756 8031
TIME...MOT...LOC 1953Z 279DEG 13KT 2751 8023

$$


MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 2:15 PM EDTSpecial Weather StatementMLBIndian River45 min
May 22, 2:50 PM EDTSpecial Weather StatementMLBIndian River40 min
May 22, 3:06 PM EDTSpecial Marine WarningMLB96 min
May 22, 3:17 PM EDTAreal Flood AdvisoryMLBIndian River, Saint Lucie118 min

Nearby

Severe Thunderstorm Warnings in Florida, 2012Every severe thunderstorm warning in 2012

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.