Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 331, NWS Louisville, KY

July 8, 2012Washington County, Indiana

NWS Louisville, KY issued this severe thunderstorm warning at Jul 8, 2012, 3:00 PM EDT for Washington County, Indiana. It was in force for 30 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: Jul 8, 2012, 3:00 PM EDT (19:00 UTC)
Expired: Jul 8, 2012, 3:30 PM EDT
In force: 30 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Washington County, IN

The radar

The Louisville radar (KLVX), 85 km from the middle of the area, began a volume at 19:04 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 8, 2:48 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.0 hours before the alert went out and 202 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: 2132 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

422 
WUUS53 KLMK 081900
SVRLMK
INC175-081930-
/O.NEW.KLMK.SV.W.0331.120708T1900Z-120708T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
300 PM EDT SUN JUL 8 2012

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN WASHINGTON COUNTY IN SOUTH CENTRAL INDIANA...

* UNTIL 330 PM EDT

* AT 258 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PUMPKIN CENTER...MOVING EAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...

  MAINLY RURAL AREAS OF NORTHEASTERN WASHINGTON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER IN A SUBSTANTIAL SHELTER. THIS STORM WILL PRODUCE A BURST
OF DAMAGING WINDS...LARGE HAIL...TORRENTIAL RAINS...AND FREQUENT
LIGHTNING. MINOR FLOODING IS POSSIBLE IN LOW SPOTS.

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3876 8598 3877 8595 3876 8594 3876 8590
      3875 8589 3864 8589 3859 8603 3876 8604
      3877 8603 3876 8601 3877 8599
TIME...MOT...LOC 1858Z 259DEG 10KT 3874 8593
WIND...HAIL 60MPH 1.00IN

$$

MP

2 follow-up statements

682 
WWUS53 KLMK 081915
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
315 PM EDT SUN JUL 8 2012

INC175-081930-
/O.CON.KLMK.SV.W.0331.000000T0000Z-120708T1930Z/
WASHINGTON IN-
315 PM EDT SUN JUL 8 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHEASTERN WASHINGTON COUNTY...

AT 315 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LITTLE YORK...MOVING
EAST AT 10 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING
WINDS.

* THE SEVERE THUNDERSTORM WILL ALSO IMPACT...

  MAINLY RURAL AREAS OF NORTHEASTERN WASHINGTON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

&&

LAT...LON 3876 8598 3877 8595 3876 8594 3876 8590
      3875 8589 3868 8589 3867 8603 3876 8604
      3877 8603 3876 8601 3877 8599
TIME...MOT...LOC 1915Z 259DEG 10KT 3875 8587
WIND...HAIL 60MPH 0.75IN

$$

MP

139 
WWUS53 KLMK 081922
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
322 PM EDT SUN JUL 8 2012

INC175-081932-
/O.EXP.KLMK.SV.W.0331.000000T0000Z-120708T1930Z/
WASHINGTON IN-
322 PM EDT SUN JUL 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WASHINGTON COUNTY
WILL EXPIRE AT 330 PM EDT...

THE STORMS THAT PROMPTED THE WARNING HAVE WEAKENED AND ARE NO LONGER
SEVERE. HOWEVER STRONG STORMS REMAIN IN THE AREA. THESE ARE CAPABLE 
OF PRODUCING PERIODS OF HEAVY RAIN...DANGEROUS LIGHTNING...AND GUSTY 
WINDS UP TO 50 MPH.

REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR POST YOUR REPORT TO
THE NATIONAL WEATHER SERVICE LOUISVILLE FACEBOOK PAGE.

LAT...LON 3876 8598 3877 8595 3876 8594 3876 8590
      3875 8589 3868 8589 3867 8603 3876 8604
      3877 8603 3876 8601 3877 8599
TIME...MOT...LOC 1922Z 259DEG 10KT 3875 8585

$$

MP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 12:35 PM EDT	Special Weather Statement	LMK	Harrison	30 min
Jul 8, 1:08 PM EDT	Severe Thunderstorm Warning	LMK	Clark, Floyd, Harrison, Washington	32 min
Jul 8, 1:12 PM EDT	Special Weather Statement	LMK	Dubois	28 min
Jul 8, 1:43 PM EDT	Special Weather Statement	LMK	Floyd, Harrison	42 min
Jul 8, 2:07 PM EDT	Special Weather Statement	LMK	Orange	28 min
Jul 8, 2:11 PM EDT	Severe Thunderstorm Warning	LMK	Orange	29 min
Jul 8, 2:25 PM EDT	Special Weather Statement	LMK	Washington	30 min
Jul 8, 2:31 PM EDT	Severe Thunderstorm Warning	LMK	Washington	44 min
Jul 8, 2:33 PM EDT	Special Weather Statement	LMK	Crawford	42 min
Jul 8, 2:40 PM EDT	Severe Thunderstorm Warning	LMK	Orange	30 min
Jul 8, 2:51 PM EDT	Severe Thunderstorm Warning	LMK	Crawford, Orange	29 min
Jul 8, 3:03 PM EDT	Severe Thunderstorm Warning	LMK	Dubois	21 min
Jul 8, 3:27 PM EDT	Severe Thunderstorm Warning	LMK	Crawford, Harrison, Orange, Washington	38 min
Jul 8, 3:36 PM EDT	Special Weather Statement	LMK	Jefferson, Scott	24 min
Jul 8, 3:38 PM EDT	Severe Thunderstorm Warning	LMK	Crawford, Dubois, Orange	47 min
Jul 8, 4:01 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	29 min
Jul 8, 4:22 PM EDT	Areal Flood Advisory	LMK	Crawford, Dubois, Orange	3 hr
Jul 8, 4:22 PM EDT	Severe Thunderstorm Warning	LMK	Dubois	28 min
Jul 8, 4:32 PM EDT	Special Weather Statement	LMK	Jefferson	28 min
Jul 8, 4:37 PM EDT	Areal Flood Advisory	LMK	Orange, Washington	3 hr
Jul 8, 4:42 PM EDT	Areal Flood Advisory	LMK	Crawford, Harrison	2 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2012 Every severe thunderstorm warning in 2012

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.