Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 90, NWS Indianapolis, IN

April 27, 2011Boone County, Hendricks County, Marion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Apr 27, 2011, 7:04 PM EDT for Boone County, Hendricks County, Marion County, Indiana. It was in force for 41 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 27, 2011, 7:04 PM EDT (23:04 UTC)
Expired: Apr 27, 2011, 7:45 PM EDT
In force: 41 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 50.0 mph

Counties Boone County, IN, Hendricks County, IN, Marion County, IN

The radar

The Indianapolis radar (KIND), 23 km from the middle of the area, began a volume at 23:04 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.

What was reported inside it

Time	Report	Where	Remark
Apr 27, 7:29 PM EDT	FUNNEL CLOUD	Brownsburg, IN	WALL CLOUD AND FUNNEL CLOUD OBSERVED

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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 194 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: 791 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 93 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.

649 
WUUS53 KIND 272304
SVRIND
INC011-063-097-272345-
/O.NEW.KIND.SV.W.0090.110427T2304Z-110427T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
704 PM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  NORTHERN HENDRICKS COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN MARION COUNTY IN CENTRAL INDIANA...

* UNTIL 745 PM EDT

* AT 700 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR DANVILLE...OR 19 
MILES WEST OF INDIANAPOLIS...AND MOVING NORTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LIZTON AROUND 710 PM EDT...
  PITTSBORO...BROWNSBURG AND CLERMONT AROUND 715 PM EDT...
  EAGLE CREEK RESERVOIR AROUND 725 PM EDT...
  WHITESTOWN AND ZIONSVILLE AROUND 745 PM EDT...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 122 AND 138.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 57 AND 71.

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 3997 8625 3993 8625 3993 8615 3970 8644
      3979 8665 4006 8645
TIME...MOT...LOC 2303Z 212DEG 15KT 3983 8649
WIND...HAIL <50MPH <.75IN

$$


77/TDUD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 8:26 PM EDT	Severe Thunderstorm Warning	IND	Carroll	34 min
Apr 26, 9:21 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	39 min
Apr 26, 9:34 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tippecanoe	41 min
Apr 26, 11:35 PM EDT	Flash Flood Warning	IND	Daviess, Greene, Knox, Lawrence, Martin, Monroe and 1 more	5 hr
Apr 26, 11:42 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Sullivan	24 min
Apr 27, 12:48 AM EDT	Flash Flood Warning	IND	Bartholomew, Brown, Decatur, Jackson, Jennings	5 hr
Apr 27, 1:10 AM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings	50 min
Apr 27, 2:06 AM EDT	Special Weather Statement	IND	Clinton, Howard, Tipton	39 min
Apr 27, 5:32 AM EDT	Areal Flood Warning	IND	Bartholomew, Jackson, Jennings	30 hr
Apr 27, 7:05 PM EDT	Tornado Warning	IND	Boone, Hendricks, Marion	40 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.