Alert archive / Florida / Wind Chill Advisories in 2010

Wind Chill Advisory 4, NWS Key West, FL

December 13, 2010Monroe County, Florida

NWS Key West, FL issued this wind chill advisory at Dec 13, 2010, 3:18 PM EST for Monroe County, Florida. It took effect at Dec 14, 2010, 1:00 AM EST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Dec 13, 2010, 3:18 PM EST (20:18 UTC)
In effect from: Dec 14, 2010, 1:00 AM EST
Expired: Dec 14, 2010, 10:00 AM EST
In force: 9 hr
Issued by: NWS Key West, FL

County Monroe County, FL

The radar

The Miami radar (KAMX), 51 km from the middle of the area, began a volume at 20:21 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, 8.3 hours before the alert went out and 69 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: 865 m above ground
0-6 km bulk shear: 94 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 154 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 Key West, FL wrote its last area forecast discussion before this wind chill advisory went out at Dec 13, 3:00 PM EST, 18 minutes earlier.

Area forecast discussion, Dec 13, 3:00 PM EST, 18 minutes before

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Hazardous weather outlook, Dec 13, 2:05 PM EST, 1 hour 13 minutes before

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In the hours before

Local storm report, Dec 13, 10:34 AM EST, 4 hours 44 minutes before

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Local storm report, Dec 13, 11:25 AM EST, 3 hours 53 minutes before

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Local storm report, Dec 13, 12:32 PM EST, 2 hours 46 minutes before

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Local storm report, Dec 13, 1:37 PM EST, 1 hour 41 minutes before

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Local storm report, Dec 13, 2:33 PM EST, 45 minutes before

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Local storm report, Dec 13, 2:53 PM EST, 25 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 13, 3:48 PM EST	Small Craft Advisory	KEY		24 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.