Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 116, NWS Indianapolis, IN

May 7, 2012Randolph County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 7, 2012, 4:24 PM EDT for Randolph County, Indiana. It was in force for 21 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: May 7, 2012, 4:24 PM EDT (20:24 UTC)
Expired: May 7, 2012, 4:45 PM EDT
In force: 21 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Randolph County, IN

The radar

The Cincinnati radar (KILN), 131 km from the middle of the area, began a volume at 20:24 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
May 7, 4:24 PM EDT	HAIL 1	3 Sse Ridgeville, 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, 8.4 hours before the alert went out and 132 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: 807 J/kg
Mixed-layer CIN: -29 J/kg
Mixed-layer LCL: 961 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 21 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.

481 
WUUS53 KIND 072024
SVRIND
INC135-072045-
/O.NEW.KIND.SV.W.0116.120507T2024Z-120507T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
424 PM EDT MON MAY 7 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN RANDOLPH COUNTY IN EAST CENTRAL INDIANA...

* UNTIL 445 PM EDT

* AT 422 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 6 MILES
  NORTH OF WINCHESTER...OR 12 MILES SOUTH OF PORTLAND...AND MOVING
  EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SARATOGA...
  SALEM...
  UNION CITY...

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 4018 8481 4019 8511 4031 8511 4032 8485
      4032 8481 4031 8480
TIME...MOT...LOC 2024Z 265DEG 31KT 4026 8499
WIND...HAIL 60MPH 1.00IN

$$

JAS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 8:08 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke, Vermillion	52 min
May 7, 7:19 AM EDT	Special Weather Statement	IND	Parke, Vermillion, Vigo	41 min
May 7, 3:43 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	47 min
May 7, 4:01 PM EDT	Areal Flood Advisory	IND	Delaware	3 hr
May 7, 4:37 PM EDT	Severe Thunderstorm Warning	IND	Randolph	18 min
May 7, 5:07 PM EDT	Special Weather Statement	IND	Hendricks	23 min
May 7, 5:27 PM EDT	Special Weather Statement	IND	Marion	48 min
May 7, 6:55 PM EDT	Areal Flood Advisory	IND	Jackson	4 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.