Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS Miami, FL

April 7, 2005Collier County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Apr 7, 2005, 11:44 PM EDT for Collier County, Florida. It was in force for 63 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: Apr 7, 2005, 11:44 PM EDT (03:44 UTC)
Expired: Apr 8, 2005, 12:47 AM EDT
In force: 63 min
Issued by: NWS Miami, FL
Area: Counties, with a storm outline in the text

County Collier County, FL

The radar

The Miami radar (KAMX), 96 km from the middle of the area, began a volume at 03:46 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 7, 10:20 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 3.7 hours before the alert went out and 97 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: 1332 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 733 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMFL 080346
SVRMFL
FLC021-080445-
/O.NEW.KMFL.SV.W.0013.050408T0344Z-050408T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1144 PM EDT THU APR 7 2005

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL AND EASTERN COLLIER COUNTY 
  IN SOUTH FLORIDA

* UNTIL 1245 AM EDT

* AT 1142 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS  
  OF 60 MPH.  THIS STORM EXTENDED FROM NEAR MILES CITY TO ROYAL PALM 
  HAMMOCK MOVING EAST AT 25 MPH.

* THE STORM WILL AFFECT...
  ROCK ISLAND
  INTERSTATE 75 ALLIGATOR ALLEY
  JEROME
  COPELAND
  MILES CITY
  OASIS RANGER STATION
  MICCOSUKEE INDIAN RESERVATION

SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS OF 60
MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY
INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

LAT...LON 2622 8154 2628 8137 2625 8127 2625 8090
      2589 8090 2586 8094 2586 8107 2589 8110
      2598 8160

$$
HANDEL

2 follow-up statements

000
WWUS52 KMFL 080428
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1225 AM EDT FRI APR 8 2005

FLC021-080445-
/O.CON.KMFL.SV.W.0013.000000T0000Z-050408T0445Z/
COLLIER FL-
1225 AM EDT FRI APR 8 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1245 AM EDT FOR 
CENTRAL AND EASTERN COLLIER COUNTY...

AT 1222 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED FROM THE BIG CYPRESS 
RESERVATION ALONG ALLIGATOR ALLEY TO THE TOWN OF OCHOPEE...AND WAS 
MOVING EAST AT 25 MPH.

THIS SEVERE THUNDERSTORM WILL REMAIN OVER RURAL PORTIONS OF EASTERN 
COLLIER COUNTY MAINLY BETWEEN INTERSTATE 75 AND U.S. HIGHWAY 41.

REPORT SEVERE WEATHER OR DAMAGE TO THE NATIONAL WEATHER SERVICE 
FORECAST OFFICE IN MIAMI DIRECTLY AT 305.229.4522.

LAT...LON 2622 8154 2628 8137 2625 8127 2625 8090
      2589 8090 2586 8094 2586 8107 2589 8110
      2598 8160

$$
HANDEL

000
WWUS52 KMFL 080447
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1245 AM EDT FRI APR 8 2005

FLC021-080455-
/O.EXP.KMFL.SV.W.0013.000000T0000Z-050408T0445Z/
COLLIER FL-
1245 AM EDT FRI APR 8 2005

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL AND EASTERN COLLIER 
COUNTY EXPIRED AT 1245 AM EDT...

AT 1245 AM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
STORM THAT PROMPTED THE WARNING HAD WEAKENED BELOW SEVERE LIMITS. 
FREQUENT CLOUD TO GROUND LIGHTNING...HEAVY RAIN...AND WIND GUSTS TO 
45 MPH ARE STILL POSSIBLE ACROSS EASTERN COLLIER COUNTY THROUGH 130 
AM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT FRIDAY
MORNING FOR SOUTHERN FLORIDA.

LAT...LON 2622 8154 2628 8137 2625 8127 2625 8090
      2589 8090 2586 8094 2586 8107 2589 8110
      2598 8160

$$
HANDEL

The office that day

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

Issued	Product	Office	Lasted
Apr 7, 8:16 PM EDT	Special Marine Warning	MFL	59 min
Apr 7, 10:57 PM EDT	Special Marine Warning	MFL	93 min
Apr 8, 12:18 AM EDT	Special Marine Warning	MFL	87 min
Apr 8, 12:20 AM EDT	Special Marine Warning	MFL	115 min
Apr 8, 12:35 AM EDT	Special Marine Warning	MFL	85 min
Apr 8, 1:58 AM EDT	Special Marine Warning	MFL	2 hr
Apr 8, 3:50 AM EDT	Special Marine Warning	MFL	85 min
Apr 8, 8:04 AM EDT	Special Marine Warning	MFL	86 min
Apr 8, 8:57 AM EDT	Special Marine Warning	MFL	63 min

Nearby

Severe Thunderstorm Warnings in Florida, 2005 Every severe thunderstorm warning in 2005

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.