Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 313, NWS Indianapolis, IN

September 3, 2011Delaware County, Madison County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Sep 3, 2011, 7:15 PM EDT for Delaware County, Madison County, Indiana. It was in force for 24 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: Sep 3, 2011, 7:15 PM EDT (23:15 UTC)
Expired: Sep 3, 2011, 7:39 PM EDT
In force: 24 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Delaware County, IN, Madison County, IN

The radar

The Indianapolis radar (KIND), 83 km from the middle of the area, began a volume at 23:18 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.3 hours before the alert went out and 181 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: 2038 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1480 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -45 m²/s²
0-3 km storm-relative helicity: -23 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.

517 
WUUS53 KIND 032315
SVRIND
INC035-095-040000-
/O.NEW.KIND.SV.W.0313.110903T2315Z-110904T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
715 PM EDT SAT SEP 3 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DELAWARE COUNTY IN EAST CENTRAL INDIANA...
  NORTHERN MADISON COUNTY IN CENTRAL INDIANA...

* UNTIL 800 PM EDT

* AT 714 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES SOUTHWEST OF
  ALEXANDRIA...OR 7 MILES NORTH OF ANDERSON...AND MOVING NORTHEAST AT
  25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALEXANDRIA...
  ORESTES...
  SUMMITVILLE...
  GASTON...

THIS INCLUDES INTERSTATE 69 BETWEEN MILE MARKERS 39 AND 51.

THOSE ATTENDING OUTDOOR EVENTS IN THE WARNED AREAS ARE IN THE PATH 
OF THIS STORM AND SHOULD PREPARE FOR DANGEROUS WEATHER CONDITIONS.

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. REMEMBER...WHEN THUNDER 
ROARS GO INDOORS.

&&

LAT...LON 4038 8532 4006 8572 4017 8587 4021 8586
      4038 8567
TIME...MOT...LOC 2315Z 223DEG 22KT 4019 8572
WIND...HAIL 60MPH <.75IN

$$

RYAN

1 follow-up statement

359 
WWUS53 KIND 032339
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
739 PM EDT SAT SEP 3 2011

INC035-095-032347-
/O.CAN.KIND.SV.W.0313.000000T0000Z-110904T0000Z/
DELAWARE-MADISON-
739 PM EDT SAT SEP 3 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DELAWARE AND
NORTHERN MADISON 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.
HOWEVER GUSTY WINDS TO 45 MPH...DANGEROUS LIGHTNING...SMALL HAIL AND 
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM...ESPECIALLY 
OVER NORTHWEST DELAWARE COUNTY. REMEMBER...WHEN THUNDER ROARS GO 
INDOORS.

LAT...LON 4038 8532 4006 8572 4017 8587 4021 8586
      4038 8567
TIME...MOT...LOC 2337Z 223DEG 22KT 4029 8560

$$

RYAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 4:17 PM EDT	Special Weather Statement	IND	Delaware	43 min
Sep 3, 4:54 PM EDT	Special Weather Statement	IND	Monroe	36 min
Sep 3, 4:59 PM EDT	Special Weather Statement	IND	Hancock	31 min
Sep 3, 5:20 PM EDT	Special Weather Statement	IND	Marion	40 min
Sep 3, 5:22 PM EDT	Special Weather Statement	IND	Johnson	23 min
Sep 3, 5:28 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Marion	47 min
Sep 3, 5:57 PM EDT	Special Weather Statement	IND	Shelby	48 min
Sep 3, 6:05 PM EDT	Special Weather Statement	IND	Hancock	25 min
Sep 3, 6:07 PM EDT	Special Weather Statement	IND	Madison	23 min
Sep 3, 6:18 PM EDT	Special Weather Statement	IND	Fountain	42 min
Sep 3, 6:25 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	36 min
Sep 3, 6:31 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Hancock, Madison	44 min
Sep 3, 6:39 PM EDT	Special Weather Statement	IND	Madison	36 min
Sep 3, 6:50 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Madison	25 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.