Alert archive / Florida / Freeze Watches in 2018

Freeze Watch 2, NWS Miami, FL

January 3, 2018Glades County, Hendry County, Florida

NWS Miami, FL issued this freeze watch at Jan 3, 2018, 3:15 PM EST for Glades County, Hendry County, Florida. It took effect at Jan 5, 2018, 1:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 3, 2018, 3:15 PM EST (20:15 UTC)
In effect from
Jan 5, 2018, 1:00 AM EST
Expired
Jan 4, 2018, 10:11 AM EST
In force
Issued by
NWS Miami, FL

Counties Glades County, FL, Hendry County, FL

The radar

The Miami radar (KAMX), 148 km from the middle of the area, began a volume at 20:20 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, 8.3 hours before the alert went out and 161 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.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2018-01-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2018-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 306 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
465 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
306 m²/s²
0-3 km storm-relative helicity
556 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this freeze watch went out at Jan 3, 12:53 PM EST, 2 hours 22 minutes earlier.

Area forecast discussion, Jan 3, 12:53 PM EST, 2 hours 22 minutes before
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Hazardous weather outlook, Jan 3, 12:14 PM EST, 3 hours 1 minute before
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In the hours before

Local storm report, Jan 3, 10:38 AM EST, 4 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1038 AM EST WED JAN 03 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0954 AM     NON-TSTM WND GST 2 NNW VANDERBILT BEACH  26.30N  81.84W
01/03/2018  M43 MPH          GMZ656             FL   MESONET

            A NON-THUNDERSTORM WIND GUST OF 43 MPH 37 KNOTS WAS
            RECORDED BY THE WEATHERBUG MESONET SITE KBNPS LOCATED AT
            KALEA BAY AT 955 AM EST.

&&

EVENT NUMBER MFL1800002

KELLY
Local storm report, Jan 3, 10:40 AM EST, 4 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1040 AM EST WED JAN 03 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1024 AM     NON-TSTM WND GST 1 S MARCO ISLAND        25.92N  81.73W
01/03/2018  M42 MPH          GMZ656             FL   MESONET

            A NON-THUNDERSTORM WIND GUST OF 42 MPH 37 KNOTS WAS
            RECORDED BY THE WEATHERBUG MESONET SITE MRCSC LOCATED AT
            THE CHARTER CLUB OF MARCO BEACH AT 1024 AM EST.

&&

EVENT NUMBER MFL1800003

KELLY
Local storm report, Jan 3, 11:05 AM EST, 4 hours 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1105 AM EST WED JAN 03 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1045 AM     NON-TSTM WND GST 10 NW PAHOKEE           26.90N  80.79W
01/03/2018  M40 MPH          AMZ610             FL   MESONET

            A NON-THUNDERSTORM WIND GUST OF 40 MPH 35 KNOTS WAS
            REPORTED BY THE SFWMD MESONET SITE LZ40 LOCATED OVER THE
            CENTER OF LAKE OKEECHOBEE AT 1045 AM EST.

&&

EVENT NUMBER MFL1800004

KELLY
Local storm report, Jan 3, 11:35 AM EST, 3 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1135 AM EST WED JAN 03 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1126 AM     NON-TSTM WND GST 2 ESE HAVERHILL         26.68N  80.10W
01/03/2018  M46 MPH          PALM BEACH         FL   ASOS

            A NON-THUNDERSTORM WIND GUST OF 46 MPH 40 KNOTS WAS
            RECORDED AT THE KPBI ASOS LOCATED AT PALM BEACH
            INTERNATIONAL AIRPORT AT 1126 AM EST.

&&

EVENT NUMBER MFL1800005

KELLY
Local storm report, Jan 3, 2:21 PM EST, 54 minutes before
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Local storm report, Jan 3, 3:12 PM EST, 3 minutes before
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The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 3, 2:52 AM ESTFreeze WatchMFLGlades30 hr
Jan 3, 2:53 AM ESTWind Chill AdvisoryMFLBroward, Collier, Glades, Hendry, Palm Beach31 hr
Jan 3, 12:09 PM ESTGale WarningMFL7 hr
Jan 3, 12:09 PM ESTSmall Craft AdvisoryMFL49 hr

Nearby

Freeze Watches in Florida, 2018Every freeze watch in 2018

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.