Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 135, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Aug 23, 2012, 5:56 PM EDT for Glades County, Hendry County, Florida. It was in force for 34 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
- Aug 23, 2012, 5:56 PM EDT (21:56 UTC)
- Expired
- Aug 23, 2012, 6:30 PM EDT
- In force
- 34 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Glades County, FL, Hendry County, FL
The radar
The Miami radar (KAMX), 146 km from the middle of the area, began a volume at 21:57 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, 9.9 hours before the alert went out and 137 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
- 3149 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
848 WUUS52 KMFL 232156 SVRMFL FLC043-051-232230- /O.NEW.KMFL.SV.W.0135.120823T2156Z-120823T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 556 PM EDT THU AUG 23 2012 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME SOUTH CENTRAL GLADES COUNTY IN SOUTH FLORIDA. WESTERN HENDRY COUNTY IN SOUTH FLORIDA. * UNTIL 630 PM EDT * AT 551 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 12 MILES NORTHEAST OF KERI TO KERI...AND MOVING NORTHWEST AT 10 MPH. * THE LINE OF STORMS WILL AFFECT... KERI... AND SURROUNDING COMMUNITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND OR LARGE HAIL. FREQUENT TO EXCESSIVE LIGHTNING AND HEAVY RAINFALL IS ALSO POSSIBLE. IF THE STORM APPROACHES YOUR LOCATION, SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR AND STAY AWAY FROM WINDOWS. && LAT...LON 2667 8116 2652 8140 2666 8151 2678 8127 TIME...MOT...LOC 2156Z 139DEG 8KT 2669 8123 2661 8138 $$ GARCIA
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 8:39 PM EDT | Special Weather Statement | MFL | Collier | 66 min |
| Aug 22, 9:35 PM EDT | Special Marine Warning | MFL | 40 min | |
| Aug 23, 7:53 AM EDT | Special Marine Warning | MFL | 52 min | |
| Aug 23, 3:34 PM EDT | Special Weather Statement | MFL | Palm Beach | 26 min |
| Aug 23, 4:26 PM EDT | Special Weather Statement | MFL | Collier | 19 min |
| Aug 23, 4:48 PM EDT | Special Weather Statement | MFL | Collier | 42 min |
| Aug 23, 5:27 PM EDT | Special Weather Statement | MFL | Hendry | 33 min |
| Aug 23, 6:58 PM EDT | Special Weather Statement | MFL | Glades | 32 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.