Alert archive / Florida / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 48, NWS Miami, FL

May 28, 2006Broward County, Florida

NWS Miami, FL issued this severe thunderstorm warning at May 28, 2006, 4:29 PM EDT for Broward County, Florida. It was in force for 61 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: May 28, 2006, 4:29 PM EDT (20:29 UTC)
Expired: May 28, 2006, 5:30 PM EDT
In force: 61 min
Issued by: NWS Miami, FL
Area: Counties, with a storm outline in the text

County Broward County, FL

The radar

The Miami radar (KAMX), 68 km from the middle of the area, began a volume at 20:31 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 8.5 hours before the alert went out and 45 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: 514 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1205 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMFL 282030
SVRMFL
FLC011-282130-
/O.NEW.KMFL.SV.W.0048.060528T2029Z-060528T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
429 PM EDT SUN MAY 28 2006

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL BROWARD COUNTY IN SOUTH FLORIDA.

* UNTIL 530 PM EDT

* AT 427 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR PARKLAND...
  OR NEAR CORAL SPRINGS...AND MOVING SOUTH AROUND 10 MPH.

* THE STORM WILL AFFECT...
  PARKLAND BY 440 PM EDT.
  CORAL SPRINGS BY 445 PM EDT.
  TAMARAC BY 500 PM EDT.
  SUNRISE BY 505 PM EDT.
  SAWGRASS MILLS MALL BY 515 PM EDT.


LAT...LON 2616 8044 2631 8044 2634 8041 2634 8024
      2631 8021 2610 8021 2610 8047 2613 8047

$$

BAXTER

2 follow-up statements

442 
WWUS52 KMFL 282045
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
442 PM EDT SUN MAY 28 2006

FLC011-282130-
/O.CON.KMFL.SV.W.0048.000000T0000Z-060528T2130Z/
BROWARD FL-
442 PM EDT SUN MAY 28 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL BROWARD COUNTY...

AT 440 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 6 MILES WEST OF CORAL SPRINGS...MOVING SOUTH TO SOUTHWEST
AROUND 10 MPH. THIS STORM WILL AFFECT THE WESTON AREA AND INTERSECTION 
I-75 AND US 27 BETWEEN 5 PM AND 530 PM EDT.

IF YOU SEE ANY SEVERE WEATHER REPORT IT YOUR LOCAL LAW ENFORCEMENT OFFICE
AND THEY WILL RELATE IT TO THE NATIONAL WEATHER SERVICE IN MIAMI
FLORIDA. OR YOU CAN ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI
DIRECTLY AT 305.229.4522 TO REPORT SEVERE WEATHER.

LAT...LON 2616 8044 2631 8044 2634 8041 2634 8024
      2631 8021 2610 8021 2610 8047 2613 8047

$$

BAXTER

236 
WWUS52 KMFL 282109
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
507 PM EDT SUN MAY 28 2006

FLC011-282130-
/O.CON.KMFL.SV.W.0048.000000T0000Z-060528T2130Z/
BROWARD FL-
507 PM EDT SUN MAY 28 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL BROWARD COUNTY...

AT 505 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE 
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STRONGEST PART OF 
THIS STORM WAS MOVING INTO WESTON. THE STORM WILL CONTINUE MOVING 
SOUTH ACROSS WESTON...AND WESTERN PORTIONS OF SUNRISE...DAVIE AND 
PEMBROKE PINES.

FREQUENT AND DEADLY LIGHTNING IS OCCURRING WITH THIS THUNDERSTORM. 
IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES AND 
AVOID WATER. MOVE INDOORS OR INSIDE A VEHICLE IF POSSIBLE. AVOID 
USING THE TELEPHONE UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG 
UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

LAT...LON 2616 8048 2626 8046 2630 8038 2630 8026
      2623 8023 2600 8029 2603 8052 2612 8050

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 28, 2:33 PM EDT, 1 hour 56 minutes earlier.

Area forecast discussion, May 28, 2:33 PM EDT, 1 hour 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
233 PM EDT SUN MAY 28 2006

.DISCUSSION...WEAK FRONT EXTENDS FROM LOW PRESSURE OVER THE WESTERN
ATLANTIC THROUGH NORTH FLORIDA...WITH HIGH PRESSURE OVER THE
NORTHEAST GULF OF MEXICO. THIS IS BRINGING NORTH FLOW DOWN THE
PENINSULA...RESULTING IN ADIABATIC DRYING AND WARMING OVER
INTERIOR SECTIONS OF SOUTH FLORIDA. MEANWHILE...WEAK EAST COAST
SEA BREEZE IS PUSHING INTO INTERIOR AREAS...FACING LIGHT OPPOSING FLOW
FROM THE NORTH IN THE LOWER LEVELS OF THE ATMOSPHERE. THE FEW EARLY
AFTERNOON SHOWERS ARE THUS BEING HELD TO THE EAST COAST
METROPOLITAN AREAS. EXPECT THIS ACTIVITY TO FLARE ON AND OFF
THROUGH THE EARLY EVENING THEN TAPER OFF. OVERNIGHT LOWS WILL BE
NEAR CLIMO NORMS.

FORECAST FOR THE NEXT COUPLE OF DAYS WILL DEPEND ON THE MOVEMENT
OF THE BOUNDARY THROUGH CENTRAL FLORIDA AND INTO SOUTH FLORIDA.
PRECIPTABLE WATER VALUES WILL REMAIN AROUND AN INCH AND A
HALF...SLIGHTLY ABOVE NORMAL. FACTORING IN MESOSCALE
INFLUENCES...CHANCE POPS LOOK GOOD FOR A COUPLE OF DAYS FAVORING
EAST COAST AREAS. TEMPERATURES WILL AGAIN REACH LOWER TO MID 90S
OVER INTERIOR AREAS EACH DAY...WITH UPPER 80S NEAR ALONG COASTAL
COMMUNITIES.

LOOKING AHEAD...THE FRONT/TROUGH WILL GRADUALLY WASH OUT...WITH RIDGING
BUILDING OVER SOUTH FLORIDA BY THE END OF THE WEEK. GFS SHOWS NEAR
CLIMO WARM TEMPS WITH CHANCE POPS. NO CHANGE TO FORECAST.

&&

.MARINE...LIGHT WINDS TO PERSIST DUE TO WEAK PRESSURE PATTERN. NO
HIGHLIGHTS.

&&

.FIRE WEATHER...RED FLAG CONDITIONS BEING MET OVER INTERIOR AREAS
DUE TO DRY NORTH WINDS AND HIGH TEMPS. GRADIENT FLOW WILL BE MORE
EASTERLY TOMORROW...BRINGING ENOUGH MOISTURE TO KEEP RHS FROM DIPPING
BELOW CRITERIA.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  73  89  74  86 /  15  35  15  30
FORT LAUDERDALE  74  88  75  86 /  15  40  25  30
MIAMI            75  90  75  88 /   5  45  25  30
NAPLES           75  88  72  89 /  10  15  15  20

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...RED FLAG WARNING FOR HENDRY AND EASTERN COLLIER TIL 6 PM.
AM...NONE.
GM...NONE.
&&

99

Hazardous weather outlook, May 28, 9:47 AM EDT, 6 hours 42 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED
NATIONAL WEATHER SERVICE MIAMI FL
947 AM EDT SUN MAY 28 2006

FLZ063-066>075-291000-
GLADES-HENDRY-PALM BEACH WESTERN-PALM BEACH EASTERN-
WESTERN COLLIER-EASTERN COLLIER-WESTERN BROWARD-
BROWARD METROPOLITAN-WESTERN DADE-DADE METROPOLITAN-
MAINLAND MONROE-
947 AM EDT SUN MAY 28 2006

...A FEW STRONG STORMS INTERIOR AND EAST COAST AREAS TODAY...
...SCATTERED THUNDERSTORMS INTERIOR AND EAST COAST AREAS TODAY...
...ISOLATED THUNDERSTORMS WEST COAST AREAS TODAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP
ACROSS SOUTH FLORIDA THIS AFTERNOON INTO THIS EVENING, EXCEPT
ISOLATED ALONG THE WEST COAST AREAS. SOME OF THE STORMS OVER THE
INTERIOR AND EAST COAST AREAS COULD BE STRONG PRODUCING FREQUENT
LIGHTNING STRIKES, SMALL HAIL, GUSTY WINDS TO 40 TO 50 MPH, AND
HEAVY RAINFALL.

HAIL: THE ATMOSPHERE ACROSS INTERIOR AND EAST COAST AREAS OF SOUTH
FLORIDA WILL REMAIN UNSTABLE TODAY ALLOWING FOR THE STORMS TO TAP
INTO THE DRIER AIR ALOFT. THIS WILL ALLOW FOR PEA TO DIME SIZE
HAIL TO DEVELOP IN THE STORMS, AND SOME LARGER HAIL IN THE
STRONGEST STORMS THIS AFTERNOON INTO THIS EVENING.

FLOODING: THE STEERING FLOW WILL BE LIGHT TODAY ACROSS SOUTH
FLORIDA ALLOWING FOR THE STORMS TO MOVE SLOWLY. THIS WILL
LEAD TO PONDING OF WATER ON THE ROADWAYS AND POORLY DRAINED
LOCATIONS IN THE HEAVIEST STORMS THIS AFTERNOON INTO EARLY THIS
EVENING.

NO OTHER HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED FOR THE INTERIOR AND EAST COAST
AREAS OF SOUTH FLORIDA THIS AFTERNOON INTO THIS EVENING.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.MIAMIWEATHER.INFO.

BAXTER

In the hours before

Special weather statement, May 28, 2:57 PM EDT, 1 hour 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
257 PM EDT SUN MAY 28 2006

FLZ067-068-282000-
PALM BEACH EASTERN-PALM BEACH WESTERN-
257 PM EDT SUN MAY 28 2006

...STRONG LINE OF STORMS MOVING THROUGH CENTRAL PALM BEACH COUNTY...

AT 254 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM WELLINGTON TO 6
MILES NORTHEAST OF CANAL POINT...MOVING SOUTH AT 5 TO 10 MPH. SOME
LOCATIONS THAT COULD BE AFFECTED BY THESE STORMS THROUGH 4 PM EDT
ARE WELLINGTON...HIGHWAY US 90...AND LION COUNTRY SAFARI.

THE PRIMARY IMPACTS WILL BE FREQUENT LIGHTNING AND GUSTY WINDS OF 40
TO 50 MPH...WHICH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW
AROUND UNSECURED SMALL OBJECTS. THESE STORMS CAN ALSO PRODUCE SMALL
HAIL...AND RAINFALL AMOUNTS BETWEEN 1 TO 2 INCHES PER HOUR. SEEK
SHELTER IN A SAFE BUILDING UNTIL THESE STORMS PASSED BY.

RESIDENTS NEAR THE PATH OF THIS STORM SHOULD REMAIN ALERT FOR
ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS IF THESE STORMS BECOME
ANY STRONGER.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

BAXTER

Special weather statement, May 28, 4:04 PM EDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
404 PM EDT SUN MAY 28 2006

FLZ067-068-072-282100-
BROWARD METROPOLITAN-PALM BEACH EASTERN-PALM BEACH WESTERN-
404 PM EDT SUN MAY 28 2006

...STRONG THUNDERSTORMS APPROACHING NORTHERN METRO BROWARD COUNTY...

AT 402 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
CLUSTER OF STRONG THUNDERSTORM 12 MILES NORTH OF CORAL SPRINGS MOVING
SOUTH AT 5 TO 10 MPH.

THE PRIMARY IMPACTS WILL BE FREQUENT LIGHTNING AND GUSTY WINDS OF 40
TO 50 MPH...WHICH CAN DOWN SMALL TREE LIMBS AND BRANCHES...AND BLOW
AROUND UNSECURED SMALL OBJECTS. THESE STORMS WILL ALSO BE CAPABLE OF
PRODUCING SMALL HAIL BETWEEN DIME TO PENNY SIZE...AND RAINFALL AMOUNTS
BETWEEN 1 TO 3 INCHES PER HOUR. SEEK SHELTER IN A SAFE BUILDING UNTIL
THESE STORMS HAVE PASSED BY.

RESIDENTS NEAR THE PATH OF THESE STORMS SHOULD REMAIN ALERT FOR
ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS IF THESE STORMS BECOME
ANY STRONGER.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

BAXTER

Local storm report, May 28, 4:08 PM EDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
408 PM EDT SUN MAY 28 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     HAIL             ROYAL PALM RANGER STATI 25.39N 80.61W
05/28/2006  E0.25 INCH       MIAMI-DADE         FL   PARK/FOREST SRVC

            HAIL REPORTED AS PEA- TO DIME-SIZE.

&&

WARNER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 9:31 PM EDT	Special Marine Warning	MFL		59 min
May 28, 1:59 PM EDT	Red Flag Warning	MFL		4 hr
May 28, 3:13 PM EDT	Severe Thunderstorm Warning	MFL	Palm Beach	62 min

Nearby

Severe Thunderstorm Warnings in Florida, 2006 Every severe thunderstorm warning in 2006

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.