Alert archive / Kentucky / Areal Flood Warnings in 2012

Areal Flood Warning 2, NWS Jackson, KY

March 1, 2012Magoffin County, Kentucky

NWS Jackson, KY issued this areal flood warning at Mar 1, 2012, 4:00 AM EST for Magoffin County, Kentucky. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 1, 2012, 4:00 AM EST (09:00 UTC)
Expired: Mar 1, 2012, 9:35 AM EST
In force: 6 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

County Magoffin County, KY

The radar

The Jackson,KY radar (KJKL), 25 km from the middle of the area, began a volume at 08:57 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

Roanoke, VA (KRNK), launched 00:00Z, 9.0 hours before the alert went out and 320 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: 25 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 616 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 281 m²/s²
0-3 km storm-relative helicity: 382 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 areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, KY wrote its last area forecast discussion before this areal flood warning went out at Mar 1, 12:49 AM EST, 3 hours 11 minutes earlier.

Area forecast discussion, Mar 1, 12:49 AM EST, 3 hours 11 minutes before

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Hazardous weather outlook, Mar 1, 12:46 AM EST, 3 hours 14 minutes before

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In the hours before

Local storm report, Feb 29, 10:05 PM EST, 5 hours 55 minutes before

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Special weather statement, Feb 29, 10:05 PM EST, 5 hours 55 minutes before

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Local storm report, Feb 29, 10:08 PM EST, 5 hours 52 minutes before

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Local storm report, Feb 29, 10:10 PM EST, 5 hours 50 minutes before

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Local storm report, Feb 29, 11:44 PM EST, 4 hours 16 minutes before

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The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 1, 4:13 AM EST	River Flood Advisory	JKL	Lee	27 hr
Mar 1, 4:13 AM EST	River Flood Advisory	JKL	Estill	4 days
Mar 1, 2:11 PM EST	Flash Flood Watch	JKL	Bell, Breathitt, Clay, Elliott, Estill, Floyd and 23 more	34 hr

Nearby

Areal Flood Warnings in Kentucky, 2012 Every areal flood warning in 2012

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.