Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 92, NWS Indianapolis, IN

April 28, 2011Jackson County, Jennings County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 28, 2011, 5:29 PM EDT for Jackson County, Jennings County, Indiana. It was in force for 20 min. 2 reports 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 28, 2011, 5:29 PM EDT (21:29 UTC)
Expired: Apr 28, 2011, 5:49 PM EDT
In force: 20 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Jackson County, IN, Jennings County, IN

The radar

The Louisville radar (KLVX), 98 km from the middle of the area, began a volume at 21:29 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 28, 5:45 PM EDT	TSTM WND DMG	Seymour, IN	TREES BLOCKED INTERSTATE 65 FOR A PERIOD, SEVERAL FALLING ON CARS AND A SEMI TRUCK.
Apr 28, 5:46 PM EDT	HAIL 0.25	Seymour, IN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.5 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 742 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

231 
WUUS53 KIND 282129
SVRIND
INC071-079-282200-
/O.NEW.KIND.SV.W.0092.110428T2129Z-110428T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
529 PM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JACKSON COUNTY IN SOUTH CENTRAL INDIANA...
  SOUTHWESTERN JENNINGS COUNTY IN SOUTHEAST INDIANA...

* UNTIL 600 PM EDT

* AT 524 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED NEAR BROWNSTOWN...OR 10 MILES WEST OF SEYMOUR...
  AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CORTLAND AROUND 535 PM EDT...
  SEYMOUR AROUND 540 PM EDT...
  CROTHERSVILLE AROUND 550 PM EDT...
  PARIS CROSSING AROUND 600 PM EDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 37 AND 51.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3875 8592 3877 8611 3891 8622 3905 8612
      3904 8609 3904 8602 3891 8554 3889 8555
      3888 8558 3886 8558 3885 8561 3883 8562
      3881 8566 3882 8574 3880 8581 3873 8585
      3871 8589
TIME...MOT...LOC 2129Z 284DEG 32KT 3893 8602
WIND...HAIL <50MPH 1.00IN

$$

77/TDUD

2 follow-up statements

951 
WWUS53 KIND 282141
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
541 PM EDT THU APR 28 2011

INC071-079-282200-
/O.CON.KIND.SV.W.0092.000000T0000Z-110428T2200Z/
JACKSON-JENNINGS-
541 PM EDT THU APR 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
JACKSON AND SOUTHWESTERN JENNINGS COUNTIES UNTIL 600 PM EDT...

AT 542 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR SEYMOUR...MOVING EAST AT 35 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CROTHERSVILLE AROUND 550 PM EDT...
  PARIS CROSSING AROUND 600 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3877 8584 3878 8587 3881 8589 3883 8601
      3891 8604 3897 8602 3900 8599 3903 8598
      3891 8554 3889 8555 3888 8558 3886 8558
      3885 8561 3883 8562 3881 8566 3882 8574
      3880 8581
TIME...MOT...LOC 2141Z 284DEG 32KT 3890 8589
WIND...HAIL <50MPH 1.00IN

$$

77/TDUD

204 
WWUS53 KIND 282149
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
549 PM EDT THU APR 28 2011

INC071-079-282159-
/O.CAN.KIND.SV.W.0092.000000T0000Z-110428T2200Z/
JACKSON-JENNINGS-
549 PM EDT THU APR 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN JACKSON AND
SOUTHWESTERN JENNINGS COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3877 8584 3878 8587 3881 8589 3883 8601
      3891 8604 3897 8602 3900 8599 3903 8598
      3891 8554 3889 8555 3888 8558 3886 8558
      3885 8561 3883 8562 3881 8566 3882 8574
      3880 8581
TIME...MOT...LOC 2149Z 284DEG 32KT 3888 8580

$$

77/TDUD

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 9:03 PM EDT	Areal Flood Warning	IND	Clay, Fountain, Montgomery, Parke, Putnam, Sullivan and 4 more	7 hr
Apr 27, 9:59 PM EDT	Areal Flood Warning	IND	Boone, Hendricks	3 hr
Apr 27, 10:55 PM EDT	Special Weather Statement	IND	Randolph	35 min
Apr 27, 10:58 PM EDT	Tornado Warning	IND	Delaware, Randolph	27 min
Apr 27, 11:19 PM EDT	Tornado Warning	IND	Randolph	15 min
Apr 28, 12:40 AM EDT	Wind Advisory	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more	4 hr
Apr 28, 1:08 AM EDT	River Flood Warning	IND	Carroll, Tippecanoe, White	41 hr
Apr 28, 5:27 AM EDT	Areal Flood Warning	IND	Boone, Montgomery	30 hr
Apr 28, 6:36 AM EDT	Areal Flood Warning	IND	Boone, Carroll, Clinton, Fountain, Hamilton, Howard and 5 more	29 hr
Apr 28, 6:47 AM EDT	Areal Flood Warning	IND	Clay, Greene, Hendricks, Marion, Montgomery, Morgan and 6 more	29 hr
Apr 28, 4:28 PM EDT	Special Weather Statement	IND	Johnson	47 min
Apr 28, 4:30 PM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe	30 min
Apr 28, 4:37 PM EDT	Special Weather Statement	IND	Knox	38 min
Apr 28, 4:57 PM EDT	Special Weather Statement	IND	Bartholomew	48 min
Apr 28, 5:12 PM EDT	Special Weather Statement	IND	Jackson	48 min
Apr 28, 5:14 PM EDT	Special Weather Statement	IND	Martin	46 min
Apr 28, 5:37 PM EDT	Special Weather Statement	IND	Monroe	38 min
Apr 28, 5:52 PM EDT	Special Weather Statement	IND	Jennings	23 min
Apr 28, 6:32 PM EDT	River Flood Warning	IND	Hamilton, Marion	23 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2011 Every severe thunderstorm warning in 2011

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.