Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

August 26, 2021Clark County, Indiana

NWS Louisville, KY issued this special weather statement at Aug 26, 2021, 8:43 PM EDT for Clark County, Indiana. It was in force for 32 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 26, 2021, 8:43 PM EDT (00:43 UTC)
Expired: Aug 26, 2021, 9:15 PM EDT
In force: 32 min
Issued by: NWS Louisville, KY
Hail: 0.25 in
Wind: 40

County Clark County, IN

The radar

The Louisville radar (KLVX), 50 km from the middle of the area, began a volume at 00:47 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, 0.7 hours before the alert went out and 264 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: 661 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 1851 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 14 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 26, 7:56 PM EDT, 47 minutes earlier.

Area forecast discussion, Aug 26, 7:56 PM EDT, 47 minutes before

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Hazardous weather outlook, Aug 26, 3:27 PM EDT, 5 hours 16 minutes before

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In the hours before

Special weather statement, Aug 26, 6:15 PM EDT, 2 hours 28 minutes before

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Special weather statement, Aug 26, 7:07 PM EDT, 1 hour 36 minutes before

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Special weather statement, Aug 26, 7:52 PM EDT, 51 minutes before

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Local storm report, Aug 26, 8:23 PM EDT, 20 minutes before

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Special weather statement, Aug 26, 8:43 PM EDT, 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 26, 8:00 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson	30 min
Aug 26, 8:29 PM EDT	Flash Flood Warning	LMK	Jefferson	2 hr
Aug 27, 12:53 PM EDT	Special Weather Statement	LMK	Ohio	52 min
Aug 27, 1:31 PM EDT	Areal Flood Advisory	LMK	Butler, Edmonson, Grayson, Hart, Warren	3 hr
Aug 27, 2:54 PM EDT	Areal Flood Advisory	LMK	Fayette	2 hr
Aug 27, 3:06 PM EDT	Areal Flood Advisory	LMK	Adair, Casey, Taylor	3 hr
Aug 27, 3:11 PM EDT	Special Weather Statement	LMK	Washington	34 min
Aug 27, 3:15 PM EDT	Areal Flood Advisory	LMK	Jessamine, Mercer, Woodford	3 hr
Aug 27, 3:28 PM EDT	Areal Flood Advisory	LMK	Madison	3 hr
Aug 27, 3:41 PM EDT	Special Weather Statement	LMK	Mercer	34 min
Aug 27, 3:45 PM EDT	Special Weather Statement	LMK	Anderson, Woodford	15 min
Aug 27, 3:49 PM EDT	Special Weather Statement	LMK	Oldham	26 min
Aug 27, 3:59 PM EDT	Special Weather Statement	LMK	Bourbon	31 min
Aug 27, 4:07 PM EDT	Special Weather Statement	LMK	Franklin	23 min
Aug 27, 4:17 PM EDT	Areal Flood Advisory	LMK	Bourbon, Clark, Fayette, Nicholas	3 hr
Aug 27, 4:21 PM EDT	Areal Flood Advisory	LMK	Anderson, Franklin, Shelby	3 hr
Aug 27, 4:25 PM EDT	Special Weather Statement	LMK	Lincoln	35 min
Aug 27, 4:32 PM EDT	Areal Flood Advisory	LMK	Boyle, Garrard, Jessamine, Lincoln	3 hr
Aug 27, 4:43 PM EDT	Special Weather Statement	LMK	Harrison	17 min
Aug 27, 5:36 PM EDT	Areal Flood Advisory	LMK	Harrison, Scott	114 min
Aug 26, 10:07 PM EDT	Areal Flood Advisory	LMK	Clark, Floyd	113 min
Aug 27, 3:53 PM EDT	Special Weather Statement	LMK	Crawford	37 min
Aug 27, 4:16 PM EDT	Special Weather Statement	LMK	Orange	29 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.