A strong squall line intensified well ahead of a cold front over the eastern Gulf of Mexico during the early morning hours of January 23rd. The line produced tornadoes in Palm Beach and Miami-Dade counties. In addition to the tornadoes, straight line wind gusts of 60 mph or greater occurred in Broward and Miami-Dade counties. An estimated 40,000 to 50,000 customers lost power in South Florida.

Thunderstorm Wind in BROWARD, FLORIDA
From 23-JAN-17 03:05:00 to 23-JAN-17 03:05:00 (EST-5)
Location: DAVIE
Magnitude: 52.00 EG
Reported by: Public

Several large tree branches down and scattered debris located at the Jacaranda Golf Club. Wind gusts off 50-60 mph were measured with the line of thunderstorms as it moved across Broward County.

Tornado in PALM BEACH, FLORIDA
From 23-JAN-17 01:40:00 to 23-JAN-17 01:49:00 (EST-5)
Location: TEQUESTA
Tornado F-scale: EF1
Property damage: 1.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

Tornado damage was first noted in the Mirabella neighborhood of Palm Beach Gardens west of Florida Turnpike between PGA Boulevard and Donald Ross Road, then followed a somewhat discontinuous path ENE across Palm Beach Gardens to Juno Beach where it moved offshore at the Juno Beach Pier.
EF-1 damage (winds around 90 mph) was concentrated mainly in the Mirabella neighborhood and east of I-95 at The Benjamin School. A few homes had tiles removed in Mirabella, causing broken windows from flying debris. At The Benjamin School Upper Campus, a full set of metal bleachers was blown across a football field for at least 50 yards, with some of the pieces of the bleachers landing in an adjacent wooded area well over 100 yards away. Debris from this location ended up as far away as Dwyer High School about 500 yards east from the original location. At Dwyer High School, the tornadic winds as well as flying debris broke windows, damaged a softball field and caused a small hole in the ceiling over a classroom in the school's main building.
Most of the remainder of the damage along the path was rated EF-0 (winds 65 to 85 mph) and consisted mainly of broken tree branches, uprooted trees and minor roof and fence damage. Areas of concentrated damage were in the Evergrene Community, along Donald Ross Road just east of Old Dixie Highway, and at the Juno Beach Condo mobile home park where 8 units sustained damage. The tornado moved offshore at the Juno Beach Pier around 149 AM where a wind gust of 87 mph was recorded at Juno Beach Pier at 150 AM EDT. The roof was lifted off of one lifeguard stand near the pier, and wood railings were damaged at the north side of the pier.
Estimate of damage at Dwyer High School is between $500,000 and $1 million, with damage estimates not received from other locations.

Thunderstorm Wind in MIAMI-DADE, FLORIDA
From 23-JAN-17 04:20:00 to 23-JAN-17 04:20:00 (EST-5)
Location: KEY BISCAYNE
Magnitude: 56.00 EG
Reported by: Park/Forest Service

Multiple trees were blown over by thunderstorm wind at Bill Baggs Cape Florida State Park.

Thunderstorm Wind in MIAMI-DADE, FLORIDA
From 23-JAN-17 03:55:00 to 23-JAN-17 03:55:00 (EST-5)
Location: MIAMI SHRS
Magnitude: 61.00 EG
Reported by: Social Media

Downed power lines along with gates and mailboxes blown down near NW 118th street and NW 5th avenue reported via twitter.

Thunderstorm Wind in MIAMI-DADE, FLORIDA
From 23-JAN-17 03:46:00 to 23-JAN-17 03:46:00 (EST-5)
Location: MEDLEY
Magnitude: 65.00 EG
Reported by: Broadcast Media

A tractor trailer was overturned near NW 50th Street and 74th avenue in Miami-Dade reported by news media.

Tornado in MIAMI-DADE, FLORIDA
From 23-JAN-17 03:45:00 to 23-JAN-17 03:48:00 (EST-5)
Location: MEDLEY
Tornado F-scale: EF1
Crop damage: 0.00K
Reported by: NWS Storm Survey

A tornado touched down just west of the Palmetto Expressway in the Doral Gardens complex near NW 79th Avenue and NW 48th Street, causing minor roof damage to an apartment building. The tornado then moved ENE and touched back down on the east side of the Palmetto Expressway in a warehouse district from NW 50th Street to NW 52nd Street between NW 74th and 69th avenues. In this area, EF-0 to borderline EF-1 damage (75-85 mph winds) was noted. A tractor trailer was overturned, at least 2 dozen empty cargo containers were moved, and minor roof damage occurred to an office building.
The tornado then moved NE and crossed into Miami Springs. Primarily impacted was the Bird District between Shadow and Ludlum Avenues and Falcon and Dove Avenues. The worst damage was on the 1100 block of Falcon, Plover and Wren consisting of loss of roof covering material and downed trees. Winds were likely in the EF-1 range (90-95 mph) in this area. Damage was observed along a NE path along the remainder of the Miami Springs portion of the path, with most of the damage east of Hammond Drive to Okeechobee Road consisting of downed power lines and trees (EF-0).
After crossing Okeechobee Road, the tornado entered the City of Hialeah and caused damage to the area from Red Road to W 2nd Avenue between West 10th and 13th streets. Four two-story apartment buildings sustained roof damage of EF-1 intensity (up to 95 mph). The tornado passed very close to a water plant, but no damage was noted there. The tornado lifted near W 2nd Avenue and W 13th Street. A total of 13 families were left homeless in Hialeah and required Red Cross assistance.
No damage estimated were received.

Thunderstorm Wind in COLLIER, FLORIDA
From 23-JAN-17 00:50:00 to 23-JAN-17 00:50:00 (EST-5)
Location: GOODLAND
Magnitude: 52.00 EG
Reported by: Emergency Manager

Collier County emergency management reported several trees down in the Goodland area.

Tornado in PALM BEACH, FLORIDA
From 23-JAN-17 01:25:00 to 23-JAN-17 01:30:00 (EST-5)
Location: LOXAHATCHEE
Tornado F-scale: EF1
Crop damage: 0.00K
Reported by: Public

Pictures were received of damage consistent with a tornado in The Acreage. First indication of damage and probable touchdown was near 180th Avenue North and 76th Street North, with a ENE path to Mandarin Boulevard and 78th Road North where borderline EF-1 damage to trees was noted. From Mandarin Boulevard, a break in the damage was observed for over a mile, with damage once again seen at Seminole Pratt Whitney Road and 84th Court North. Damage continued to Hall Boulevard and 85th Road North where the tornado likely lifted.
Damage was to trees and fences along the path. Almost all of the damage was EF-0 (70-80 mph), with one or two spots of EF-1 damage (85-90 mph winds).

Thunderstorm Wind in MIAMI-DADE, FLORIDA
From 23-JAN-17 03:10:00 to 23-JAN-17 03:10:00 (EST-5)
Location: MIAMI NEW TAMIAMI AR
Magnitude: 52.00 EG
Reported by: Park/Forest Service

Several large tree branches down in Shark Valley National Park.