Alert archive / Indiana / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 21, NWS Louisville, KY
NWS Louisville, KY issued this severe thunderstorm warning at Apr 3, 2018, 4:19 PM EDT for Clark County, Jefferson County, Scott County, Indiana; Trimble County, Kentucky. It was in force for 26 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 3, 2018, 4:19 PM EDT (20:19 UTC)
- Expired
- Apr 3, 2018, 4:45 PM EDT
- In force
- 26 min
- Issued by
- NWS Louisville, KY
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Clark County, IN, Jefferson County, IN, Scott County, IN, Trimble County, KY
The radar
The Louisville radar (KLVX), 97 km from the middle of the area, began a volume at 20:18 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 3, 4:33 PM EDT | TSTM WND GST 60 | 1 Ene Madison, IN | TIME ESTIMATED BY RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 3, 1:16 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.3 hours before the alert went out and 166 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
- 542 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 358 m²/s²
- 0-3 km storm-relative helicity
- 356 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
742
WUUS53 KLMK 032019
SVRLMK
INC019-077-143-KYC223-032045-
/O.NEW.KLMK.SV.W.0021.180403T2019Z-180403T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
419 PM EDT TUE APR 3 2018
The National Weather Service in Louisville has issued a
* Severe Thunderstorm Warning for...
Jefferson County in south central Indiana...
Northeastern Clark County in south central Indiana...
Central Scott County in south central Indiana...
Northwestern Trimble County in central Kentucky...
* Until 445 PM EDT
* At 419 PM EDT, severe thunderstorms were located along a line
extending from 11 miles south of Vernon to 6 miles east of
Scottsburg to 13 miles north of Prospect, moving northeast at 45
mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Madison, Lexington, Hanover, Saluda, Smyrna, Milton, Kent, Dupont,
Wakefield and Canaan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 800 PM EDT for south central
Indiana...and central Kentucky.
LAT...LON 3886 8528 3874 8531 3874 8533 3871 8532
3861 8534 3848 8578 3863 8574 3880 8580
3882 8574 3883 8573 3883 8571 3882 8570
3882 8561 3885 8561 3885 8557 3888 8557
3888 8554 3891 8553 3891 8531
TIME...MOT...LOC 2019Z 243DEG 39KT 3882 8565 3868 8564 3853 8568
HAIL...0.88IN
WIND...60MPH
$$
EER2 follow-up statements
463
WWUS53 KLMK 032033
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
433 PM EDT TUE APR 3 2018
INC143-032042-
/O.CAN.KLMK.SV.W.0021.000000T0000Z-180403T2045Z/
Scott IN-
433 PM EDT TUE APR 3 2018
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SCOTT COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 800 PM EDT for south central
Indiana...and central Kentucky.
LAT...LON 3886 8528 3874 8531 3874 8533 3871 8532
3861 8534 3850 8571 3855 8570 3861 8559
3861 8557 3868 8557 3872 8556 3878 8558
3888 8557 3888 8554 3891 8553 3891 8531
TIME...MOT...LOC 2032Z 243DEG 39KT 3888 8549 3874 8548 3859 8552
$$
INC019-077-KYC223-032045-
/O.CON.KLMK.SV.W.0021.000000T0000Z-180403T2045Z/
Jefferson IN-Clark IN-Trimble KY-
433 PM EDT TUE APR 3 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR JEFFERSON...NORTHEASTERN CLARK AND NORTHWESTERN TRIMBLE
COUNTIES...
At 432 PM EDT, severe thunderstorms were located along a line
extending from 9 miles southeast of Vernon to near Madison to 10
miles west of Bedford, moving northeast at 45 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Madison, Hanover, Saluda, Smyrna, Milton, Kent, Dupont, Wakefield,
Canaan and North Madison.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 800 PM EDT for south central
Indiana...and central Kentucky.
LAT...LON 3886 8528 3874 8531 3874 8533 3871 8532
3861 8534 3850 8571 3855 8570 3861 8559
3861 8557 3868 8557 3872 8556 3878 8558
3888 8557 3888 8554 3891 8553 3891 8531
TIME...MOT...LOC 2032Z 243DEG 39KT 3888 8549 3874 8548 3859 8552
HAIL...0.88IN
WIND...60MPH
$$
EER456
WWUS53 KLMK 032043
SVSLMK
Severe Weather Statement
National Weather Service Louisville KY
443 PM EDT TUE APR 3 2018
INC019-077-KYC223-032053-
/O.EXP.KLMK.SV.W.0021.000000T0000Z-180403T2045Z/
Jefferson IN-Clark IN-Trimble KY-
443 PM EDT TUE APR 3 2018
...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON...NORTHEASTERN CLARK
AND NORTHWESTERN TRIMBLE COUNTIES WILL EXPIRE AT 445 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.
A tornado watch remains in effect until 800 PM EDT for south central
Indiana...and central Kentucky.
Report severe weather to local law enforcement, post your report to
the National Weather Service Louisville Facebook page, or tweet your
report using hashtag L, M, K, spotter.
LAT...LON 3886 8528 3874 8531 3874 8533 3871 8532
3861 8534 3850 8571 3855 8570 3861 8559
3861 8557 3868 8557 3872 8556 3878 8558
3888 8557 3888 8554 3891 8553 3891 8531
TIME...MOT...LOC 2043Z 243DEG 39KT 3893 8537 3879 8536 3864 8540
$$
EERThe office that day
Everything else NWS Louisville, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 9:04 PM EDT | Flash Flood Watch | LMK | Clark, Dubois, Jefferson, Orange, Scott, Washington | 7 hr |
| Apr 2, 9:41 PM EDT | Special Weather Statement | LMK | Orange | 34 min |
| Apr 2, 10:49 PM EDT | Special Weather Statement | LMK | Dubois | 41 min |
| Apr 2, 11:31 PM EDT | Special Weather Statement | LMK | Jefferson, Scott | 44 min |
| Apr 3, 12:49 AM EDT | Areal Flood Advisory | LMK | Jefferson, Scott, Washington | 3 hr |
| Apr 3, 11:26 AM EDT | River Flood Advisory | LMK | Crawford, Perry | 48 hr |
| Apr 3, 2:04 PM EDT | Special Weather Statement | LMK | Dubois | 26 min |
| Apr 3, 2:33 PM EDT | Special Weather Statement | LMK | Dubois | 27 min |
| Apr 3, 3:05 PM EDT | Special Weather Statement | LMK | Orange, Washington | 25 min |
| Apr 3, 3:53 PM EDT | Special Weather Statement | LMK | Scott, Washington | 37 min |
| Apr 3, 4:41 PM EDT | Severe Thunderstorm Warning | LMK | Jefferson | 19 min |
| Apr 3, 6:27 PM EDT | Special Weather Statement | LMK | Clark | 33 min |
| Apr 3, 7:53 PM EDT | Severe Thunderstorm Warning | LMK | Clark | 37 min |
| Apr 3, 9:46 AM EDT | Special Weather Statement | LMK | Fayette, Jessamine, Mercer | 29 min |
| Apr 3, 3:59 PM EDT | Special Weather Statement | LMK | Ohio | 16 min |
| Apr 3, 4:46 PM EDT | Special Weather Statement | LMK | Oldham | 29 min |
| Apr 3, 4:57 PM EDT | Severe Thunderstorm Warning | LMK | Henry, Jefferson, Oldham | 33 min |
| Apr 3, 5:05 PM EDT | Special Weather Statement | LMK | Henry | 10 min |
| Apr 3, 5:24 PM EDT | Special Weather Statement | LMK | Henry | 21 min |
| Apr 3, 6:07 PM EDT | Severe Thunderstorm Warning | LMK | Harrison | 23 min |
| Apr 3, 6:19 PM EDT | Special Weather Statement | LMK | Franklin | 26 min |
| Apr 3, 6:28 PM EDT | Severe Thunderstorm Warning | LMK | Franklin, Scott | 47 min |
| Apr 3, 6:37 PM EDT | Special Weather Statement | LMK | Ohio | 23 min |
| Apr 3, 6:55 PM EDT | Special Weather Statement | LMK | Harrison | 35 min |
| Apr 3, 7:06 PM EDT | Severe Thunderstorm Warning | LMK | Harrison | 24 min |
| Apr 3, 7:08 PM EDT | Special Weather Statement | LMK | Trimble | 22 min |
| Apr 3, 7:13 PM EDT | Severe Thunderstorm Warning | LMK | Breckinridge | 32 min |
| Apr 3, 7:23 PM EDT | Severe Thunderstorm Warning | LMK | Breckinridge, Butler, Grayson, Ohio | 37 min |
| Apr 3, 7:30 PM EDT | Severe Thunderstorm Warning | LMK | Butler, Edmonson, Grayson, Ohio, Warren | 30 min |
| Apr 3, 7:36 PM EDT | Severe Thunderstorm Warning | LMK | Breckinridge, Bullitt, Hardin, Meade, Nelson | 39 min |
| Apr 3, 7:46 PM EDT | Severe Thunderstorm Warning | LMK | Ohio | 18 min |
| Apr 3, 7:55 PM EDT | Severe Thunderstorm Warning | LMK | Grayson, Hardin | 35 min |
| Apr 3, 7:57 PM EDT | Severe Thunderstorm Warning | LMK | Butler, Edmonson, Grayson, Hart, Warren | 33 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 2018Severe Thunderstorm Warnings in Kentucky, 2018Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.