Alert archive / Kentucky / Special Weather Statements in 2018

Special Weather Statement, NWS Louisville, KY

September 6, 2018Allen County, Warren County, Kentucky

NWS Louisville, KY issued this special weather statement at Sep 6, 2018, 3:21 PM CDT for Allen County, Warren County, Kentucky. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 6, 2018, 3:21 PM CDT (20:21 UTC)
Expired: Sep 6, 2018, 4:00 PM CDT
In force: 39 min
Issued by: NWS Louisville, KY

Counties Allen County, KY, Warren County, KY

The radar

The Nashville radar (KOHX), 65 km from the middle of the area, began a volume at 20:24 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 12:00Z, 8.4 hours before the alert went out and 78 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: 920 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 1033 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 6, 2:26 PM CDT, 55 minutes earlier.

Area forecast discussion, Sep 6, 2:26 PM CDT, 55 minutes before

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Hazardous weather outlook, Sep 6, 2:33 PM CDT, 48 minutes before

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In the hours before

Special weather statement, Sep 6, 11:57 AM CDT, 3 hours 24 minutes before

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Special weather statement, Sep 6, 12:48 PM CDT, 2 hours 33 minutes before

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Local storm report, Sep 6, 1:33 PM CDT, 1 hour 48 minutes before

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Special weather statement, Sep 6, 1:39 PM CDT, 1 hour 42 minutes before

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Special weather statement, Sep 6, 2:35 PM CDT, 46 minutes before

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Special weather statement, Sep 6, 3:21 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 11:57 AM CDT	Special Weather Statement	LMK	Nelson	33 min
Sep 6, 12:48 PM CDT	Special Weather Statement	LMK	Butler	27 min
Sep 6, 1:39 PM CDT	Special Weather Statement	LMK	Edmonson, Hart, Ohio	36 min
Sep 6, 2:35 PM CDT	Special Weather Statement	LMK	Clinton	25 min
Sep 6, 2:40 PM CDT	Flash Flood Watch	LMK	Bourbon, Clark, Fayette, Franklin, Harrison, Henry and 9 more	3 days
Sep 6, 3:47 PM CDT	Special Weather Statement	LMK	Woodford	28 min
Sep 6, 4:02 PM CDT	Special Weather Statement	LMK	Allen, Warren	43 min
Sep 6, 4:18 PM CDT	Special Weather Statement	LMK	Franklin	42 min
Sep 6, 4:22 PM CDT	Special Weather Statement	LMK	Monroe	38 min
Sep 6, 4:46 PM CDT	Special Weather Statement	LMK	Clark	29 min
Sep 6, 4:49 PM CDT	Special Weather Statement	LMK	Franklin	26 min
Sep 6, 5:19 PM CDT	Areal Flood Advisory	LMK	Clark	56 min
Sep 6, 6:37 PM CDT	Special Weather Statement	LMK	Bourbon	38 min
Sep 6, 11:03 AM CDT	Special Weather Statement	LMK	Harrison	27 min
Sep 6, 4:06 PM CDT	Special Weather Statement	LMK	Dubois	24 min

Nearby

Special Weather Statements in Kentucky, 2018 Every special weather statement 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.