Alert archive / Florida / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 2, NWS Key West, FL
NWS Key West, FL issued this severe thunderstorm warning at Aug 25, 2012, 7:11 AM EDT for Monroe 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 25, 2012, 7:11 AM EDT (11:11 UTC)
- Expired
- Aug 25, 2012, 7:45 AM EDT
- In force
- 34 min
- Issued by
- NWS Key West, FL
- Area
- Storm-based polygon
County Monroe County, FL
The radar
The Miami radar (KAMX), 56 km from the middle of the area, began a volume at 11:11 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 00:00Z, 11.2 hours before the alert went out and 81 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
- 14 J/kg
- Mixed-layer CIN
- -336 J/kg
- Mixed-layer LCL
- 1966 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
176
WUUS52 KKEY 251111
SVRKEY
FLC087-251145-
/O.NEW.KKEY.SV.W.0002.120825T1111Z-120825T1145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KEY WEST FL
711 AM EDT SAT AUG 25 2012
THE NATIONAL WEATHER SERVICE IN KEY WEST HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MONROE/UPPER KEYS COUNTY IN SOUTHEAST FLORIDA...
THIS INCLUDES THE COMMUNITY OF KEY LARGO...
* UNTIL 745 AM EDT
* AT 704 AM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 11 MILES SOUTHEAST OF ROUTE
1/CARD SOUND ROAD SPLIT...OR 13 MILES EAST OF KEY LARGO...AND
MOVING WEST AT 25 MPH.
* COMMUNITIES IN THE PATH OF THE SEVERE WEATHER INCLUDE ROUTE 1/CARD
SOUND ROAD S AND ROCK HARBOR
LAT...LON 2517 8035 2511 8039 2506 8046 2505 8045
2505 8047 2499 8052 2497 8056 2501 8055
2508 8047 2512 8049 2512 8047 2510 8046
2511 8044 2515 8047 2518 8046 2518 8044
2516 8045 2514 8041 2518 8039
TIME...MOT...LOC 1109Z 095DEG 21KT 2506 8027
$$
CLR1 follow-up statement
241
WWUS52 KKEY 251130
SVSKEY
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE KEY WEST FL
730 AM EDT SAT AUG 25 2012
FLC087-251145-
/O.CON.KKEY.SV.W.0002.000000T0000Z-120825T1145Z/
MONROE/UPPER KEYS FL-
730 AM EDT SAT AUG 25 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 AM EDT
FOR MONROE COUNTY IN THE UPPER KEYS...
AT 727 AM EDT...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED
NEAR KEY LARGO...MOVING WEST AT 25 MPH.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCK
HARBOR.
LAT...LON 2517 8035 2511 8039 2506 8046 2505 8045
2505 8047 2499 8052 2497 8056 2501 8055
2508 8047 2512 8049 2512 8047 2510 8046
2511 8044 2515 8047 2518 8046 2518 8044
2516 8045 2514 8041 2518 8039
TIME...MOT...LOC 1130Z 095DEG 21KT 2507 8041
$$
CLRThe office that day
Everything else NWS Key West, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:01 PM EDT | Special Marine Warning | KEY | 89 min | |
| Aug 24, 8:41 PM EDT | Special Marine Warning | KEY | 49 min | |
| Aug 24, 8:47 PM EDT | Special Marine Warning | KEY | 43 min | |
| Aug 24, 9:01 PM EDT | Special Marine Warning | KEY | 59 min | |
| Aug 24, 9:18 PM EDT | Special Marine Warning | KEY | 57 min | |
| Aug 24, 9:23 PM EDT | Special Marine Warning | KEY | 52 min | |
| Aug 24, 9:27 PM EDT | Special Marine Warning | KEY | 48 min | |
| Aug 24, 10:00 PM EDT | Special Marine Warning | KEY | 60 min | |
| Aug 24, 11:00 PM EDT | Special Marine Warning | KEY | 45 min | |
| Aug 25, 12:30 AM EDT | Hurricane Watch | KEY | Monroe | 4 hr |
| Aug 25, 12:30 AM EDT | Tropical Storm Warning | KEY | Monroe | 59 hr |
| Aug 25, 4:53 AM EDT | Hurricane Warning | KEY | Monroe | 38 hr |
| Aug 25, 7:22 AM EDT | Severe Thunderstorm Warning | KEY | Monroe | 38 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.