Alert archive / Kentucky / Flash Flood Watches in 2021
Flash Flood Watch 4, NWS Louisville, KY
NWS Louisville, KY issued this flash flood watch at Jun 18, 2021, 3:30 PM EDT for Henry County, Trimble County, Kentucky; Jefferson County, Scott County, Indiana. It took effect at Jun 19, 2021, 12:00 AM EDT. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Jun 18, 2021, 3:30 PM EDT (19:30 UTC)
- In effect from
- Jun 19, 2021, 12:00 AM EDT
- Expired
- Jun 19, 2021, 10:00 AM EDT
- In force
- 10 hr
- Issued by
- NWS Louisville, KY
- Flood severity
- None
Counties Jefferson County, IN, Scott County, IN, Henry County, KY, Trimble County, KY
The radar
The Louisville radar (KLVX), 87 km from the middle of the area, began a volume at 19:31 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.5 hours before the alert went out and 165 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1560 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
779 WGUS63 KLMK 181930 FFALMK URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Louisville KY 330 PM EDT Fri Jun 18 2021 INZ078-079-KYZ032-033-190330- /O.NEW.KLMK.FF.A.0004.210619T0400Z-210619T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Scott-Jefferson-Trimble-Henry- Including the cities of New Castle, Bedford, Madison, Scottsburg, and Milton 330 PM EDT Fri Jun 18 2021 ...FLASH FLOOD WATCH IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH SATURDAY MORNING... The National Weather Service in Louisville has issued a * Flash Flood Watch for portions of Indiana and north central Kentucky, including the following areas, in Indiana, Jefferson and Scott. In north central Kentucky, Henry and Trimble. * From Midnight EDT tonight through Saturday morning. * Thunderstorms may produce heavy rain late tonight into early Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ 13
2 follow-up statements
785 WGUS63 KLMK 190324 FFALMK Flood Watch National Weather Service Louisville KY 1124 PM EDT Fri Jun 18 2021 INZ078-079-KYZ032-033-191400- /O.CON.KLMK.FF.A.0004.210619T0400Z-210619T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Scott-Jefferson-Trimble-Henry- Including the cities of New Castle, Bedford, Madison, Scottsburg, and Milton 1124 PM EDT Fri Jun 18 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 AM EDT SATURDAY... The Flash Flood Watch continues for * Portions of Indiana and north central Kentucky, including the following areas, in Indiana, Jefferson and Scott. In north central Kentucky, Henry and Trimble. * Until 10 AM EDT Saturday. * Repeated thunderstorms capable of intense rainfall could result in Flash Flooding tonight into Saturday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ BJS
680 WGUS63 KLMK 191355 FFALMK Flood Watch National Weather Service Louisville KY 955 AM EDT Sat Jun 19 2021 INZ078-079-KYZ032-033-191500- /O.EXP.KLMK.FF.A.0004.000000T0000Z-210619T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Scott-Jefferson-Trimble-Henry- Including the cities of New Castle, Bedford, Madison, Scottsburg, and Milton 955 AM EDT Sat Jun 19 2021 ...FLASH FLOOD WATCH WILL EXPIRE AT 10 AM EDT THIS MORNING... The Flash Flood Watch for portions of Indiana and north central Kentucky, including the following areas, in Indiana, Jefferson and Scott, and in north central Kentucky, Henry and Trimble, will expire at 10 AM EDT this morning. Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. $$ 13
The office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 12:13 PM EDT | Special Weather Statement | LMK | Harrison | 32 min |
Nearby
Flash Flood Watches in Kentucky, 2021Flash Flood Watches in Indiana, 2021Every flash flood watch 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.