Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 103, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 1, 2012, 6:23 PM EDT for Collier County, Florida. It was in force for 37 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
- Jul 1, 2012, 6:23 PM EDT (22:23 UTC)
- Expired
- Jul 1, 2012, 7:00 PM EDT
- In force
- 37 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Collier County, FL
The radar
The Miami radar (KAMX), 118 km from the middle of the area, began a volume at 22:23 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
Miami, FL (KMFL), launched 12:00Z, 10.4 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.
- Mixed-layer CAPE
- 2142 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 796 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
441 WUUS52 KMFL 012223 SVRMFL FLC021-012300- /O.NEW.KMFL.SV.W.0103.120701T2223Z-120701T2300Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 623 PM EDT SUN JUL 1 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL COLLIER COUNTY IN SOUTH FLORIDA. * UNTIL 700 PM EDT * AT 618 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 MILE MARKER 90 ON ALLIGATOR ALLEY...AND MOVING WEST AT 10 MPH. * THE STORM WILL AFFECT... INTERSECTION ALLIGATOR ALLEY AND SR 29... AND SURROUNDING COMMUNITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS CAN PRODUCE VERY STRONG WINDS IN EXCESS OF 58 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 2603 8160 2629 8154 2621 8122 2602 8127 TIME...MOT...LOC 2223Z 104DEG 10KT 2613 8135 $$ AK
2 follow-up statements
193 WWUS52 KMFL 012236 SVSMFL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 636 PM EDT SUN JUL 1 2012 FLC021-012300- /O.CON.KMFL.SV.W.0103.000000T0000Z-120701T2300Z/ COLLIER FL- 636 PM EDT SUN JUL 1 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT FOR CENTRAL COLLIER COUNTY... AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR ROCK ISLAND...MOVING WEST AT 5 TO 10 MPH. REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. OR YOU CAN ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT 305.229.4528 TO REPORT SEVERE WEATHER. LAT...LON 2602 8132 2603 8160 2629 8154 2622 8124 TIME...MOT...LOC 2236Z 105DEG 8KT 2612 8138 $$ AK
882 WWUS52 KMFL 012252 SVSMFL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 652 PM EDT SUN JUL 1 2012 FLC021-012302- /O.EXP.KMFL.SV.W.0103.000000T0000Z-120701T2300Z/ COLLIER FL- 652 PM EDT SUN JUL 1 2012 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COLLIER COUNTY WILL EXPIRE AT 700 PM EDT... THUNDERSTORMS REMAIN IN THE AREA. FREQUENT LIGHTNING...GUSTY WINDS TO 45 MPH AND VERY HEAVY RAINFALL ARE STILL POSSIBLE. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES. LAT...LON 2602 8132 2603 8160 2629 8154 2622 8124 TIME...MOT...LOC 2252Z 105DEG 8KT 2613 8142 $$ AK
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 4:23 PM EDT | Special Weather Statement | MFL | Monroe | 52 min |
| Jul 1, 4:29 PM EDT | Special Weather Statement | MFL | Palm Beach | 46 min |
| Jul 1, 6:30 PM EDT | Special Weather Statement | MFL | Hendry | 45 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.