Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

August 12, 2021Perry County, Indiana

NWS Louisville, KY issued this special weather statement at Aug 12, 2021, 7:07 PM CDT for Perry County, Indiana. It was in force for 23 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: Aug 12, 2021, 7:07 PM CDT (00:07 UTC)
Expired: Aug 12, 2021, 7:30 PM CDT
In force: 23 min
Issued by: NWS Louisville, KY
Hail: 0.00 in
Wind: 40

County Perry County, IN

The radar

The Louisville radar (KLVX), 62 km from the middle of the area, began a volume at 00:10 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, 0.1 hours before the alert went out and 211 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: 1786 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 1455 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -25 m²/s²
0-3 km storm-relative helicity: 0 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 Aug 12, 6:40 PM CDT, 27 minutes earlier.

Area forecast discussion, Aug 12, 6:40 PM CDT, 27 minutes before

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Hazardous weather outlook, Aug 12, 5:22 PM CDT, 1 hour 45 minutes before

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In the hours before

Special weather statement, Aug 12, 6:15 PM CDT, 52 minutes before

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Special weather statement, Aug 12, 6:42 PM CDT, 25 minutes before

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Special weather statement, Aug 12, 7:02 PM CDT, 5 minutes before

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Special weather statement, Aug 12, 7:07 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
Aug 12, 7:31 PM CDT	Special Weather Statement	LMK	Meade	29 min
Aug 12, 8:03 PM CDT	Special Weather Statement	LMK	Henry	27 min
Aug 12, 8:26 PM CDT	Special Weather Statement	LMK	Spencer	19 min
Aug 12, 8:45 PM CDT	Special Weather Statement	LMK	Shelby	30 min
Aug 12, 8:52 PM CDT	Special Weather Statement	LMK	Spencer	23 min
Aug 12, 9:04 PM CDT	Severe Thunderstorm Warning	LMK	Shelby, Spencer	14 min
Aug 12, 9:14 PM CDT	Special Weather Statement	LMK	Franklin	31 min
Aug 12, 9:32 PM CDT	Special Weather Statement	LMK	Anderson, Harrison, Scott, Woodford	28 min
Aug 12, 10:08 PM CDT	Special Weather Statement	LMK	Scott	22 min
Aug 12, 10:53 PM CDT	Special Weather Statement	LMK	Grayson	37 min
Aug 13, 12:49 PM CDT	Special Weather Statement	LMK	Nicholas	26 min
Aug 13, 1:17 PM CDT	Special Weather Statement	LMK	Scott	28 min
Aug 13, 2:07 PM CDT	Special Weather Statement	LMK	Metcalfe	23 min
Aug 13, 2:28 PM CDT	Areal Flood Advisory	LMK	Metcalfe, Monroe	2 hr
Aug 13, 2:51 PM CDT	Flash Flood Warning	LMK	Metcalfe, Monroe	3 hr
Aug 13, 3:15 PM CDT	Special Weather Statement	LMK	Metcalfe	15 min
Aug 13, 3:49 PM CDT	Areal Flood Advisory	LMK	Barren, Metcalfe, Monroe	3 hr
Aug 13, 4:16 PM CDT	Special Weather Statement	LMK	Washington	29 min
Aug 13, 4:21 PM CDT	Special Weather Statement	LMK	Marion	24 min
Aug 13, 4:39 PM CDT	Severe Thunderstorm Warning	LMK	Marion, Washington	36 min
Aug 13, 4:46 PM CDT	Special Weather Statement	LMK	Bourbon	29 min
Aug 13, 4:51 PM CDT	Special Weather Statement	LMK	Scott	24 min
Aug 13, 4:56 PM CDT	Special Weather Statement	LMK	Harrison	19 min
Aug 13, 4:59 PM CDT	Special Weather Statement	LMK	Fayette	31 min
Aug 13, 5:04 PM CDT	Special Weather Statement	LMK	Anderson	26 min
Aug 13, 5:11 PM CDT	Special Weather Statement	LMK	Jessamine	34 min
Aug 13, 5:13 PM CDT	Special Weather Statement	LMK	Nelson	32 min
Aug 13, 5:21 PM CDT	Areal Flood Advisory	LMK	Fayette, Jessamine	3 hr
Aug 13, 5:24 PM CDT	Special Weather Statement	LMK	Edmonson	36 min
Aug 13, 5:25 PM CDT	Areal Flood Advisory	LMK	Scott, Woodford	3 hr
Aug 13, 5:27 PM CDT	Special Weather Statement	LMK	Nicholas	33 min
Aug 13, 5:33 PM CDT	Special Weather Statement	LMK	Anderson	27 min
Aug 13, 5:36 PM CDT	Special Weather Statement	LMK	Bullitt	24 min
Aug 13, 5:48 PM CDT	Special Weather Statement	LMK	Nelson	27 min
Aug 13, 6:11 PM CDT	Special Weather Statement	LMK	Nelson	19 min
Aug 13, 6:49 PM CDT	Special Weather Statement	LMK	Shelby	11 min
Aug 12, 7:02 PM CDT	Special Weather Statement	LMK	Crawford, Washington	28 min

Nearby

Special Weather Statements in Indiana, 2021 Every special weather statement in 2021

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.