Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 119, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 31, 2012, 6:13 PM EDT for Glades County, Florida. It was in force for 47 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 31, 2012, 6:13 PM EDT (22:13 UTC)
- Expired
- Jul 31, 2012, 7:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
County Glades County, FL
The radar
The Melbourne radar (KMLB), 124 km from the middle of the area, began a volume at 22:12 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
Tampa Bay, FL (KTBW), launched 12:00Z, 10.2 hours before the alert went out and 150 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
- 1766 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -43 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.
821
WUUS52 KMFL 312213
SVRMFL
FLC043-312300-
/O.NEW.KMFL.SV.W.0119.120731T2213Z-120731T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
613 PM EDT TUE JUL 31 2012
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN GLADES COUNTY IN SOUTH FLORIDA.
* UNTIL 700 PM EDT
* AT 610 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 6 MILES NORTHWEST OF LAKEPORT...AND MOVING NORTH
AT 10 MPH.
* THE STORM WILL AFFECT...
BUCKHEAD RIDGE...
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.
FREQUENT 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 2717 8088 2713 8087 2708 8094 2704 8092
2703 8096 2705 8098 2698 8107 2692 8107
2693 8110 2691 8110 2687 8126 2703 8130
2704 8127 2712 8127 2713 8117 2721 8117
2722 8095
TIME...MOT...LOC 2213Z 166DEG 8KT 2705 8120
$$
102 follow-up statements
169
WWUS52 KMFL 312242
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
642 PM EDT TUE JUL 31 2012
FLC043-312300-
/O.CON.KMFL.SV.W.0119.000000T0000Z-120731T2300Z/
GLADES FL-
642 PM EDT TUE JUL 31 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHEASTERN GLADES COUNTY...
AT 640 PM EDT...A SEVERE THUNDERSTORM WAS REPORTED. LARGE HAIL. THIS
STORM WAS LOCATED 10 MILES WEST OF BRIGHTON SEMINOLE INDIAN...MOVING
NORTH AT 10 MPH.
LAT...LON 2717 8088 2713 8087 2708 8094 2704 8092
2703 8096 2705 8098 2698 8107 2696 8108
2701 8111 2701 8115 2699 8121 2703 8130
2704 8127 2712 8127 2713 8117 2721 8117
2722 8095
TIME...MOT...LOC 2242Z 166DEG 8KT 2711 8122
$$
10655
WWUS52 KMFL 312255
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
655 PM EDT TUE JUL 31 2012
FLC043-312305-
/O.EXP.KMFL.SV.W.0119.000000T0000Z-120731T2300Z/
GLADES FL-
655 PM EDT TUE JUL 31 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GLADES COUNTY
WILL EXPIRE AT 700 PM EDT...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORM HAS
DISSIPATED. THUS THE THUNDERSTORM WARNING WILL EXPIRE AT 700 PM EDT.
LAT...LON 2717 8088 2713 8087 2708 8094 2704 8092
2703 8096 2705 8098 2698 8107 2696 8108
2701 8111 2701 8115 2699 8121 2703 8130
2704 8127 2712 8127 2713 8117 2721 8117
2722 8095
TIME...MOT...LOC 2255Z 166DEG 8KT 2714 8123
$$
10The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 3:22 PM EDT | Special Weather Statement | MFL | Miami-Dade | 38 min |
| Jul 31, 3:59 PM EDT | Special Weather Statement | MFL | Miami-Dade | 46 min |
| Jul 31, 4:36 PM EDT | Areal Flood Advisory | MFL | Miami-Dade | 101 min |
| Jul 31, 4:45 PM EDT | Special Weather Statement | MFL | Miami-Dade | 30 min |
| Jul 31, 4:51 PM EDT | Special Weather Statement | MFL | Miami-Dade | 24 min |
| Jul 31, 5:31 PM EDT | Special Weather Statement | MFL | Glades | 44 min |
| Jul 31, 6:39 PM EDT | Special Marine Warning | MFL | 66 min | |
| Jul 31, 7:15 PM EDT | Special Weather Statement | MFL | Palm Beach | 45 min |
| Jul 31, 7:26 PM EDT | Severe Thunderstorm Warning | MFL | Palm Beach | 49 min |
| Jul 31, 7:45 PM EDT | Special Marine Warning | MFL | 60 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.