Alert archive / Florida / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 1, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jan 25, 2011, 10:23 PM EST for Broward County, Palm Beach County, Florida. It was in force for 37 min. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 25, 2011, 10:23 PM EST (03:23 UTC)
- Expired
- Jan 25, 2011, 11:00 PM EST
- In force
- 37 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
Counties Broward County, FL, Palm Beach County, FL
The radar
The Miami radar (KAMX), 100 km from the middle of the area, began a volume at 03:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 25, 10:47 PM EST | TSTM WND GST 62 | Deerfield Beach, FL | A THUNDERSTORM PRODUCED A WIND GUST OF 62 MPH IN DEERFIELD BEACH |
| Jan 25, 10:48 PM EST | TSTM WND GST 64 | 1 E Parkland, FL | A THUNDERSTORM PRODUCED A WIND GUST OF 64 MPH AT THE INTERSECTION OF WEST HILLSBORO AND SOUTH POWERLINE DRIVE NEAR PARKLAND |
| Jan 25, 10:50 PM EST | TSTM WND GST 49 | Boynton Beach, FL | A THUNDERSTORM PRODUCED A WIND GUST OF 49 MPH IN WEST BOYNTON BEACH. |
| Jan 25, 10:50 PM EST | TORNADO 0 | Boca Raton, FL | FOLLOWING REPORTS FROM THE PUBLIC RELAYED TO THE NWS BY THE MEDIA, A TEAM SURVEYED THE AREA THIS MORNING. IN THE NEIGHBORHOOD OF CAMEO WOODS NEAR THE INTERSECTION OF MILITARY TRAIL AND CAMINO REAL, LARGE SNAPPED OFF TREE BRANCHES WERE OBSERVED ALONG WITH A LAR |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 25, 8:03 PM EST | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Miami, FL (KMFL), launched 00:00Z, 3.4 hours before the alert went out and 74 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
- 1046 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 8.2
The text
As transmitted, in the capitals the NWS used until 2016.
347
WUUS52 KMFL 260323
SVRMFL
FLC011-099-260400-
/O.NEW.KMFL.SV.W.0001.110126T0323Z-110126T0400Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
1023 PM EST TUE JAN 25 2011
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN BROWARD COUNTY IN SOUTH FLORIDA.
SOUTHEASTERN PALM BEACH COUNTY IN SOUTH FLORIDA.
* UNTIL 1100 PM EST
* AT 1019 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
DETECTED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED
ALONG A LINE EXTENDING FROM 4 MILES SOUTH OF WELLINGTON TO 9 MILES
NORTHWEST OF PARKLAND...AND MOVING EAST AT 25 MPH.
* THE LINE OF STORMS WILL AFFECT...
GOLDEN LAKES...
HAVERHILL...
GREENACRES CITY...
MISSION BAY...
LAKE WORTH...
COCONUT CREEK...
AND SURROUNDING COMMUNITIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO
ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN AN INTERIOR
ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS IF A TORNADO IS
SPOTTED.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EST WEDNESDAY
MORNING FOR SOUTHERN FLORIDA.
&&
LAT...LON 2655 8003 2655 8004 2645 8005 2638 8007
2629 8007 2622 8009 2631 8044 2670 8027
2669 8003
TIME...MOT...LOC 0322Z 282DEG 22KT 2661 8022 2636 8035
$$
BAXTER2 follow-up statements
275
WWUS52 KMFL 260337
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1037 PM EST TUE JAN 25 2011
FLC011-099-260400-
/O.CON.KMFL.SV.W.0001.000000T0000Z-110126T0400Z/
PALM BEACH FL-BROWARD FL-
1037 PM EST TUE JAN 25 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM EST
FOR NORTHEASTERN BROWARD AND SOUTHEASTERN PALM BEACH COUNTIES...
AT 1032 PM EST...DOPPLER RADAR CONTINUE TO INDICATED A LINE OF SEVERE
THUNDERSTORMS WITH DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM FLORIDA GARDENS TO
PARKLAND...MOVING EAST AT 25 MPH.
SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS OF 70
MPH...DEADLY LIGHTNING...AND VERY HEAVY RAINFALL. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. THIS STORM HAS THE POTENTIAL TO CAUSE SERIOUS
INJURY AND SIGNIFICANT DAMAGE TO PROPERTY.
REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EST WEDNESDAY
MORNING FOR SOUTHERN FLORIDA.
LAT...LON 2633 8038 2669 8020 2669 8003 2655 8003
2655 8004 2645 8005 2638 8007 2629 8007
2622 8009
TIME...MOT...LOC 0336Z 282DEG 22KT 2659 8013 2634 8026
$$
BAXTER988
WWUS52 KMFL 260402
SVSMFL
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
1102 PM EST TUE JAN 25 2011
FLC011-099-260412-
/O.EXP.KMFL.SV.W.0001.000000T0000Z-110126T0400Z/
PALM BEACH FL-BROWARD FL-
1102 PM EST TUE JAN 25 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BROWARD AND
SOUTHEASTERN PALM BEACH COUNTIES HAS EXPIRED...
NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE THUNDERSTORMS HAVE
MOVED OUT OF THE WARNED AREA. THUS THE THUNDERSTORM WARNING HAS
EXPIRED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EST WEDNESDAY
MORNING FOR SOUTHERN FLORIDA.
LAT...LON 2633 8038 2669 8020 2669 8003 2655 8003
2655 8004 2645 8005 2638 8007 2629 8007
2622 8009
TIME...MOT...LOC 0337Z 282DEG 22KT 2659 8012 2634 8025
$$
BAXTERThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 25, 8:32 PM EST | Special Marine Warning | MFL | 58 min | |
| Jan 25, 8:55 PM EST | Special Weather Statement | MFL | Hendry | 35 min |
| Jan 25, 9:12 PM EST | Special Weather Statement | MFL | Palm Beach | 48 min |
| Jan 25, 9:39 PM EST | Special Weather Statement | MFL | Broward | 36 min |
| Jan 25, 9:58 PM EST | Special Weather Statement | MFL | Palm Beach | 47 min |
| Jan 25, 10:28 PM EST | Special Marine Warning | MFL | 92 min | |
| Jan 25, 10:34 PM EST | Special Weather Statement | MFL | Broward | 26 min |
| Jan 25, 11:00 PM EST | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 45 min |
| Jan 25, 11:12 PM EST | Special Marine Warning | MFL | 93 min | |
| Jan 25, 11:22 PM EST | Special Weather Statement | MFL | Miami-Dade | 23 min |
| Jan 25, 11:59 PM EST | Special Marine Warning | MFL | 46 min | |
| Jan 26, 12:49 AM EST | Special Marine Warning | MFL | 41 min | |
| Jan 26, 1:25 AM EST | Special Marine Warning | MFL | 50 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.