Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

May 4, 2021Barren County, Monroe County, Kentucky

NWS Louisville, KY issued this special weather statement at May 4, 2021, 6:26 AM CDT for Barren County, Monroe County, Kentucky. It was in force for 19 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: May 4, 2021, 6:26 AM CDT (11:26 UTC)
Expired: May 4, 2021, 6:45 AM CDT
In force: 19 min
Issued by: NWS Louisville, KY

Counties Barren County, KY, Monroe County, KY

The radar

The Nashville radar (KOHX), 96 km from the middle of the area, began a volume at 11:27 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, 11.4 hours before the alert went out and 107 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: 2263 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1050 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 7.6

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 May 4, 6:17 AM CDT, 9 minutes earlier.

Area forecast discussion, May 4, 6:17 AM CDT, 9 minutes before

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Hazardous weather outlook, May 4, 5:23 AM CDT, 1 hour 3 minutes before

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In the hours before

Special weather statement, May 4, 5:03 AM CDT, 1 hour 23 minutes before

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Special weather statement, May 4, 5:20 AM CDT, 1 hour 6 minutes before

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Local storm report, May 4, 5:40 AM CDT, 46 minutes before

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Special weather statement, May 4, 5:54 AM CDT, 32 minutes before

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Special weather statement, May 4, 5:58 AM CDT, 28 minutes before

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Special weather statement, May 4, 6:26 AM 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
May 4, 12:08 AM CDT	Special Weather Statement	LMK	Warren	22 min
May 4, 12:12 AM CDT	Severe Thunderstorm Warning	LMK	Edmonson, Warren	33 min
May 4, 12:26 AM CDT	Severe Thunderstorm Warning	LMK	Allen, Monroe	34 min
May 4, 12:45 AM CDT	Special Weather Statement	LMK	Edmonson	15 min
May 4, 1:32 AM CDT	Special Weather Statement	LMK	Barren, Warren	43 min
May 4, 1:57 AM CDT	Special Weather Statement	LMK	Metcalfe	33 min
May 4, 2:15 AM CDT	Special Weather Statement	LMK	Monroe	30 min
May 4, 2:18 AM CDT	Special Weather Statement	LMK	Warren	27 min
May 4, 2:43 AM CDT	Special Weather Statement	LMK	Barren	32 min
May 4, 2:54 AM CDT	Special Weather Statement	LMK	Butler	36 min
May 4, 3:13 AM CDT	Severe Thunderstorm Warning	LMK	Barren, Edmonson, Hart	32 min
May 4, 3:22 AM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland	23 min
May 4, 3:27 AM CDT	Flash Flood Warning	LMK	Barren	3 hr
May 4, 3:42 AM CDT	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	33 min
May 4, 3:47 AM CDT	Special Weather Statement	LMK	Adair, Butler, Clinton, Cumberland, Edmonson, Green and 2 more	28 min
May 4, 3:55 AM CDT	Flash Flood Watch	LMK	Adair, Allen, Barren, Butler, Casey, Clinton and 13 more	22 hr
May 4, 4:06 AM CDT	Flash Flood Warning	LMK	Cumberland, Monroe	3 hr
May 4, 4:11 AM CDT	Special Weather Statement	LMK	Butler	34 min
May 4, 4:21 AM CDT	Flash Flood Warning	LMK	Butler	5 hr
May 4, 4:24 AM CDT	Special Weather Statement	LMK	Edmonson, Warren	36 min
May 4, 4:51 AM CDT	Flash Flood Warning	LMK	Edmonson, Hart	3 hr
May 4, 5:03 AM CDT	Special Weather Statement	LMK	Green	27 min
May 4, 5:20 AM CDT	Special Weather Statement	LMK	Allen, Barren, Logan, Simpson, Warren	40 min
May 4, 5:21 AM CDT	Flash Flood Warning	LMK	Adair, Cumberland, Metcalfe	3 hr
May 4, 5:49 AM CDT	Flash Flood Warning	LMK	Barren, Edmonson, Metcalfe, Warren	3 hr
May 4, 5:54 AM CDT	Flash Flood Warning	LMK	Logan, Simpson, Warren	3 hr
May 4, 5:58 AM CDT	Special Weather Statement	LMK	Allen, Simpson	47 min
May 4, 6:10 AM CDT	Severe Thunderstorm Warning	LMK	Allen, Simpson	20 min
May 4, 6:28 AM CDT	Areal Flood Advisory	LMK	Allen, Barren, Metcalfe, Monroe	3 hr
May 4, 6:43 AM CDT	Special Weather Statement	LMK	Allen, Cumberland, Monroe	47 min
May 4, 6:51 AM CDT	Flash Flood Warning	LMK	Adair, Barren, Clinton, Cumberland, Metcalfe, Monroe and 1 more	6 hr
May 4, 8:46 AM CDT	Areal Flood Warning	LMK	Logan, Simpson, Warren	3 hr
May 4, 8:50 AM CDT	Areal Flood Warning	LMK	Barren, Edmonson, Metcalfe, Warren	4 hr
May 4, 10:12 AM CDT	River Flood Warning	LMK	Cumberland, Monroe	11 hr
May 4, 1:19 PM CDT	River Flood Warning	LMK	Butler, Warren	4 days
May 4, 1:19 PM CDT	River Flood Warning	LMK	Butler, Muhlenberg, Ohio	5 days
May 4, 5:40 PM CDT	Special Weather Statement	LMK	Warren	50 min
May 4, 5:48 PM CDT	Special Weather Statement	LMK	Spencer	27 min
May 4, 6:13 PM CDT	Special Weather Statement	LMK	Simpson	47 min
May 4, 6:26 PM CDT	Special Weather Statement	LMK	Edmonson	49 min
May 4, 6:41 PM CDT	Special Weather Statement	LMK	Butler	34 min
May 4, 6:56 PM CDT	Special Weather Statement	LMK	Butler	34 min
May 4, 5:54 AM CDT	Special Weather Statement	LMK	Orange	36 min

Nearby

Special Weather Statements in Kentucky, 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.