Alert archive / Kentucky / Winter Storm Watches in 2016

Winter Storm Watch 2, NWS Louisville, KY

January 20, 201649 counties in Kentucky; Clark County, Floyd County, Harrison County, Indiana

NWS Louisville, KY issued this winter storm watch at Jan 20, 2016, 3:28 AM CST for 49 counties in Kentucky; Clark County, Floyd County, Harrison County, Indiana. It took effect at Jan 21, 2016, 6:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 20, 2016, 3:28 AM CST (09:28 UTC)
In effect from: Jan 21, 2016, 6:00 PM CST
Expired: Jan 21, 2016, 2:37 AM CST
In force
Issued by: NWS Louisville, KY

All 52 counties

Clark County, IN, Floyd County, IN, Harrison County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 56 km from the middle of the area, began a volume at 09:33 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

Nashville Metro, TN (KBNA), launched 00:00Z, 9.5 hours before the alert went out and 200 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: 1779 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 109 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 winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Louisville, KY wrote its last area forecast discussion before this winter storm watch went out at Jan 20, 3:04 AM CST, 24 minutes earlier.

Area forecast discussion, Jan 20, 3:04 AM CST, 24 minutes before

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Hazardous weather outlook, Jan 19, 8:45 PM CST, 6 hours 43 minutes before

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Nearby

Winter Storm Watches in Kentucky, 2016 Winter Storm Watches in Indiana, 2016 Every winter storm watch in 2016

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.