Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 2, NWS Indianapolis, IN

February 27, 20117 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Feb 27, 2011, 10:46 PM EST for 7 counties in Indiana. It was in force for 44 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
Feb 27, 2011, 10:46 PM EST (03:46 UTC)
Expired
Feb 27, 2011, 11:30 PM EST
In force
44 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Boone County, IN, Hamilton County, IN, Hendricks County, IN, Marion County, IN, Morgan County, IN, Owen County, IN, Putnam County, IN

The radar

The Indianapolis radar (KIND), 17 km from the middle of the area, began a volume at 03:48 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

Lincoln, IL (KILX), launched 00:00Z, 3.8 hours before the alert went out and 188 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, Lincoln, IL at 00:00Z on 2011-02-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2011-02-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.1939587897117Sfc1 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
124 J/kg
Mixed-layer CIN
-220 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

952 
WUUS53 KIND 280346
SVRIND
INC011-057-063-097-109-119-133-280430-
/O.NEW.KIND.SV.W.0002.110228T0346Z-110228T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1046 PM EST SUN FEB 27 2011

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  SOUTHWESTERN HAMILTON COUNTY IN CENTRAL INDIANA...
  HENDRICKS COUNTY IN CENTRAL INDIANA...
  NORTHERN MARION COUNTY IN CENTRAL INDIANA...
  NORTHWESTERN MORGAN COUNTY IN CENTRAL INDIANA...
  NORTHEASTERN OWEN COUNTY IN WEST CENTRAL INDIANA...
  SOUTHERN PUTNAM COUNTY IN WEST CENTRAL INDIANA...

* UNTIL 1130 PM EST

* AT 1044 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED 12 MILES SOUTH OF GREENCASTLE...OR 27 MILES EAST
  OF TERRE HAUTE...AND MOVING NORTHEAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BELLE UNION...LITTLE POINT...FILLMORE AND EMINENCE AROUND 1055 PM
  EST...
  STILESVILLE...AMO...COATESVILLE AND MONROVIA AROUND 1100 PM EST...
  DANVILLE AND CLAYTON AROUND 1105 PM EST...
  AVON...PLAINFIELD AND INDIANAPOLIS INT'L AIRPORT AROUND 1110 PM
  EST...
  BROWNSBURG AND EAGLE CREEK RESERVOIR AROUND 1115 PM EST...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 113 AND 133.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 31 AND 83.

THIS INCLUDES INTERSTATE 74 BETWEEN MILE MARKERS 59 AND 73.

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

&&

LAT...LON 4005 8631 4000 8614 3985 8602 3937 8681
      3951 8702
TIME...MOT...LOC 0346Z 227DEG 63KT 3950 8684
WIND...HAIL <50MPH 1.00IN

$$

MRD/JK
2 follow-up statements
439 
WWUS53 KIND 280356
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1056 PM EST SUN FEB 27 2011

INC011-057-063-097-109-119-133-280430-
/O.CON.KIND.SV.W.0002.000000T0000Z-110228T0430Z/
BOONE-HAMILTON-HENDRICKS-MARION-MORGAN-OWEN-PUTNAM-
1056 PM EST SUN FEB 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
OWEN...NORTHWESTERN MORGAN...SOUTHERN PUTNAM...HENDRICKS...NORTHERN
MARION...SOUTHEASTERN BOONE AND SOUTHWESTERN HAMILTON COUNTIES UNTIL
1130 PM EST...

AT 1053 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED 7 MILES EAST OF GREENCASTLE...OR 32 MILES SOUTH OF
CRAWFORDSVILLE...MOVING NORTHEAST AT 60 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  DANVILLE AND CLAYTON AROUND 1105 PM EST...
  AVON AND PLAINFIELD AROUND 1110 PM EST...
  BROWNSBURG...EAGLE CREEK RESERVOIR...CLERMONT AND PITTSBORO AROUND
  1115 PM EST...
  CROWS NEST...WYNNEDALE...ROCKY RIPPLE AND SPRING HILL AROUND 1120
  PM EST...
  ZIONSVILLE...WILLIAMS CREEK AND MERIDIAN HILLS AROUND 1125 PM
  EST...

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.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

&&

LAT...LON 4005 8631 4000 8614 3985 8602 3937 8681
      3951 8702
TIME...MOT...LOC 0356Z 229DEG 59KT 3964 8667
WIND...HAIL <50MPH 1.00IN

$$

MRD/JK
933 
WWUS53 KIND 280421
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
1121 PM EST SUN FEB 27 2011

INC011-057-063-097-109-119-133-280431-
/O.EXP.KIND.SV.W.0002.000000T0000Z-110228T0430Z/
BOONE-HAMILTON-HENDRICKS-MARION-MORGAN-OWEN-PUTNAM-
1121 PM EST SUN FEB 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OWEN...
NORTHWESTERN MORGAN...SOUTHERN PUTNAM...HENDRICKS...NORTHERN
MARION...SOUTHEASTERN BOONE AND SOUTHWESTERN HAMILTON COUNTIES WILL
EXPIRE AT 1130 PM EST/1030 PM CST/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN INDIANAPOLIS.

LAT...LON 4005 8631 4000 8614 3985 8602 3937 8681
      3951 8702
TIME...MOT...LOC 0421Z 229DEG 59KT 3991 8626

$$

MRD/JK

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 9:32 PM ESTSevere Thunderstorm WarningINDBoone, Clinton, Hamilton, Howard, Montgomery, Tipton43 min
Feb 27, 10:14 PM ESTSpecial Weather StatementINDFountain, Tippecanoe31 min
Feb 27, 11:05 PM ESTSevere Thunderstorm WarningINDFountain, Montgomery, Parke, Putnam, Vermillion40 min
Feb 27, 11:46 PM ESTSpecial Weather StatementINDBoone29 min
Feb 28, 12:31 AM ESTAreal Flood WarningINDBoone, Clay, Fountain, Hendricks, Marion, Montgomery and 7 more42 hr
Feb 28, 12:35 AM ESTAreal Flood WarningINDBoone, Decatur, Delaware, Hamilton, Hancock, Henry and 5 more42 hr
Feb 28, 1:08 AM ESTTornado WarningINDBartholomew, Brown, Johnson, Monroe, Morgan37 min
Feb 28, 1:25 AM ESTTornado WarningINDDelaware, Randolph35 min
Feb 28, 1:29 AM ESTAreal Flood WarningINDDelaware, Henry, Randolph41 hr
Feb 28, 1:59 AM ESTSevere Thunderstorm WarningINDHamilton, Hendricks, Marion31 min
Feb 28, 2:08 AM ESTTornado WarningINDClay, Hendricks, Morgan, Owen, Parke, Putnam and 1 more37 min
Feb 28, 2:19 AM ESTTornado WarningINDDelaware, Henry, Madison, Randolph26 min
Feb 28, 2:24 AM ESTAreal Flood WarningINDBoone, Clinton, Delaware, Hamilton, Howard, Madison and 1 more40 hr
Feb 28, 2:33 AM ESTSevere Thunderstorm WarningINDHamilton, Hancock, Hendricks, Madison, Marion, Morgan and 1 more27 min
Feb 28, 2:38 AM ESTTornado WarningINDHendricks, Marion, Morgan, Putnam37 min
Feb 28, 2:43 AM ESTTornado WarningINDDelaware, Henry, Randolph32 min
Feb 28, 3:42 AM ESTSevere Thunderstorm WarningINDHancock, Henry, Rush, Shelby48 min
Feb 28, 4:05 AM ESTSevere Thunderstorm WarningINDBartholomew, Decatur, Rush, Shelby40 min
Feb 28, 5:22 AM ESTRiver Flood WarningINDDelaware, Madison56 hr
Feb 28, 5:22 AM ESTRiver Flood WarningINDHamilton, Madison62 hr
Feb 28, 5:22 AM ESTRiver Flood WarningINDHamilton, Marion4 days
Feb 28, 5:22 AM ESTRiver Flood WarningINDMarion, Morgan4 days
Feb 28, 5:22 AM ESTRiver Flood WarningINDMarion, Morgan4 days
Feb 28, 5:22 AM ESTRiver Flood WarningINDClay, Greene62 hr
Feb 28, 11:18 AM ESTRiver Flood WarningINDMorgan, Owen10 days
Feb 28, 11:18 AM ESTRiver Flood WarningINDMorgan, Owen10 days
Feb 28, 11:18 AM ESTRiver Flood WarningINDShelby50 hr
Feb 28, 11:18 AM ESTRiver Flood WarningINDMontgomery, Parke35 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2011Every 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.