Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 33, NWS Louisville, KY

June 9, 2021Washington County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Jun 9, 2021, 12:23 AM EDT for Washington County, Indiana. 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
Jun 9, 2021, 12:23 AM EDT (04:23 UTC)
Expired
Jun 9, 2021, 12:42 AM EDT
In force
19 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Washington County, IN

The radar

The Louisville radar (KLVX), 59 km from the middle of the area, began a volume at 04:24 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 00:00Z, 4.4 hours before the alert went out and 226 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 00:00Z on 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
20 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1310 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

528 
WUUS53 KLMK 090423
SVRLMK
INC175-090500-
/O.NEW.KLMK.SV.W.0033.210609T0423Z-210609T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
1223 AM EDT Wed Jun 9 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Southwestern Washington County in south central Indiana...

* Until 100 AM EDT.

* At 1222 AM EDT, a severe thunderstorm was located 10 miles south of
  Salem, moving northeast at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  southwestern Washington County, including the following
  locations... Fredericksburg, Organ Springs, Shorts Corner, Becks
  Mill and New Pekin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building. Rotation is occurring with this storm.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3854 8597 3842 8616 3842 8621 3843 8624
      3860 8618
TIME...MOT...LOC 0422Z 210DEG 13KT 3846 8617 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

SCHOETTMER
2 follow-up statements
411 
WWUS53 KLMK 090435
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
1235 AM EDT Wed Jun 9 2021

INC175-090500-
/O.CON.KLMK.SV.W.0033.000000T0000Z-210609T0500Z/
Washington IN-
1235 AM EDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM EDT
FOR SOUTHWESTERN WASHINGTON COUNTY...

At 1234 AM EDT, a severe thunderstorm was located 7 miles south of
Salem, moving northeast at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Organ Springs, Shorts Corner and Becks Mill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building. Rotation is occurring with this storm.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3854 8597 3846 8615 3848 8622 3860 8618
TIME...MOT...LOC 0434Z 210DEG 13KT 3850 8614 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

SCHOETTMER
661 
WWUS53 KLMK 090442
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
1242 AM EDT Wed Jun 9 2021

INC175-090452-
/O.CAN.KLMK.SV.W.0033.000000T0000Z-210609T0500Z/
Washington IN-
1242 AM EDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WASHINGTON COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 3854 8597 3846 8615 3848 8622 3860 8618
TIME...MOT...LOC 0442Z 210DEG 13KT 3852 8612 

$$

SCHOETTMER

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 8, 8:02 PM EDTSpecial Weather StatementLMKPerry43 min
Jun 9, 12:19 AM EDTSpecial Weather StatementLMKWashington26 min
Jun 9, 1:18 AM EDTSpecial Weather StatementLMKWashington27 min
Jun 9, 2:18 AM EDTSpecial Weather StatementLMKFloyd27 min
Jun 9, 2:24 AM EDTSpecial Weather StatementLMKWashington36 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2021Every severe thunderstorm warning 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.