Alert archive / Florida / Wind Chill Advisories in 2010

Wind Chill Advisory 7, NWS Miami, FL

January 8, 20104 counties in Florida

NWS Miami, FL issued this wind chill advisory at Jan 8, 2010, 3:14 PM EST for 4 counties in Florida. It took effect at Jan 9, 2010, 3:00 AM EST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jan 8, 2010, 3:14 PM EST (20:14 UTC)
In effect from: Jan 9, 2010, 3:00 AM EST
Expired: Jan 9, 2010, 9:00 AM EST
In force: 6 hr
Issued by: NWS Miami, FL

Counties Collier County, FL, Glades County, FL, Hendry County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 123 km from the middle of the area, began a volume at 20:14 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 12:00Z, 8.2 hours before the alert went out and 112 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1072 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind chill advisory 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 wind chill advisory went out at Jan 8, 12:46 PM EST, 2 hours 28 minutes earlier.

Area forecast discussion, Jan 8, 12:46 PM EST, 2 hours 28 minutes before

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Hazardous weather outlook, Jan 8, 4:43 AM EST, 10 hours 31 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
443 AM EST FRI JAN 8 2010

FLZ063-066>075-168-172>174-090045-
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-INLAND MIAMI DADE-
METRO MIAMI DADE-MAINLAND MONROE-COASTAL PALM BEACH-
COASTAL BROWARD-COASTAL MIAMI DADE-FAR SOUTH MIAMI DADE-
443 AM EST FRI JAN 8 2010

...WIND CHILLS BELOW 35 DEGREES LATE TONIGHT LAKE OKEECHOBEE REGION...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

RIP CURRENTS: A SOUTH TO SOUTHWEST WIND OF 5 TO 10 MPH TODAY WILL
RESULT IN A SLIGHT RISK OF RIP CURRENTS AT THE COLLIER COUNTY
BEACHES.

TEMPERATURES: ANOTHER STRONG COLD FRONT WILL MOVE ACROSS SOUTH
FLORIDA LATE TONIGHT WITH WIND CHILL READINGS BELOW 35 DEGREES
ACROSS INLAND PALM BEACH, GLADES AND HENDRY COUNTIES. WIND CHILLS
WILL BE IN THE RANGE OF THE UPPER 30S TO LOWER 40S ACROSS THE
REMAINDER OF SOUTH FLORIDA LATE TONIGHT WITH THE EXCEPTION OF THE
IMMEDIATE SOUTHEAST COASTAL REGION.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE COLD FRONT WILL MOVE SOUTH OF THE REGION BY SUNRISE SATURDAY
WITH A RETURN TO BELOW FREEZING TEMPERATURES FOR SUNDAY AND MONDAY
MORNINGS ACROSS INTERIOR SOUTH FLORIDA.

STAY TUNED TO THE LATEST FORECAST UPDATES ON THIS COLD WEATHER
EPISODE ALONG WITH POSSIBLE ADDITIONAL FREEZE WATCHES AND
POSSIBLE FREEZE WARNINGS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 8, 9:22 AM EST	Red Flag Warning	MFL	Broward, Miami-Dade, Palm Beach	3 hr
Jan 8, 2:36 PM EST	Freeze Watch	MFL	Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more	22 hr
Jan 8, 2:47 PM EST	Wind Chill Watch	MFL	Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more	22 hr
Jan 8, 3:29 PM EST	Fire Weather Watch	MFL	Broward, Miami-Dade, Monroe, Palm Beach	37 hr

Nearby

Wind Chill Advisories in Florida, 2010 Every wind chill advisory in 2010

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.