Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 158, NWS Indianapolis, IN

July 19, 2012Boone County, Clinton County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 19, 2012, 6:32 PM EDT for Boone County, Clinton County, Indiana. It was in force for 28 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: Jul 19, 2012, 6:32 PM EDT (22:32 UTC)
Expired: Jul 19, 2012, 7:00 PM EDT
In force: 28 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Boone County, IN, Clinton County, IN

The radar

The Indianapolis radar (KIND), 57 km from the middle of the area, began a volume at 22:35 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
Jul 19, 6:35 PM EDT	HAIL 1	Frankfort, IN	LOCATED AT STATE ROAD 158 AND INTERSTATE 65
Jul 19, 6:42 PM EDT	TSTM WND GST 55	Frankfort, IN

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 19, 4:11 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 182 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: 1080 J/kg
Mixed-layer CIN: -228 J/kg
Mixed-layer LCL: 1472 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 111 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.

113 
WUUS53 KIND 192232
SVRIND
INC011-023-192300-
/O.NEW.KIND.SV.W.0158.120719T2232Z-120719T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
632 PM EDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN BOONE COUNTY IN CENTRAL INDIANA...
  SOUTHERN CLINTON COUNTY IN CENTRAL INDIANA...

* UNTIL 700 PM EDT

* AT 630 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 NEAR FRANKFORT...AND MOVING
  SOUTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FRANKFORT...
  KIRKLIN...

THIS INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 145 AND 159.

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 4022 8624 3999 8624 4019 8670 4024 8670
      4036 8663
TIME...MOT...LOC 2233Z 293DEG 24KT 4024 8655
WIND...HAIL 60MPH <.75IN

$$

50

2 follow-up statements

318 
WWUS53 KIND 192248
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
648 PM EDT THU JUL 19 2012

INC011-023-192300-
/O.CON.KIND.SV.W.0158.000000T0000Z-120719T2300Z/
BOONE-CLINTON-
648 PM EDT THU JUL 19 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
CLINTON AND NORTHEASTERN BOONE COUNTIES UNTIL 700 PM EDT...

AT 644 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 6 MILES SOUTHEAST OF FRANKFORT...
MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  KIRKLIN.

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 4019 8663 4033 8654 4022 8624 3999 8624
TIME...MOT...LOC 2248Z 293DEG 24KT 4020 8643
WIND...HAIL 60MPH <.75IN

$$

50

528 
WWUS53 KIND 192300
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
700 PM EDT THU JUL 19 2012

INC011-023-192310-
/O.EXP.KIND.SV.W.0158.000000T0000Z-120719T2300Z/
BOONE-CLINTON-
700 PM EDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CLINTON AND
NORTHEASTERN BOONE COUNTIES HAS EXPIRED...

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 AROUND 50 MPH ARE STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4019 8663 4033 8654 4022 8624 3999 8624
TIME...MOT...LOC 2248Z 293DEG 24KT 4020 8643

$$

50

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 3:19 AM EDT	Heat Advisory	IND	Bartholomew, Brown, Clay, Daviess, Decatur, Greene and 9 more	17 hr
Jul 19, 3:33 PM EDT	Special Weather Statement	IND	Lawrence	27 min
Jul 19, 3:58 PM EDT	Special Weather Statement	IND	Monroe	32 min
Jul 19, 4:13 PM EDT	Special Weather Statement	IND	Jackson	32 min
Jul 19, 4:28 PM EDT	Severe Thunderstorm Warning	IND	Jackson, Lawrence	47 min
Jul 19, 4:40 PM EDT	Special Weather Statement	IND	Daviess	50 min
Jul 19, 4:54 PM EDT	Special Weather Statement	IND	Jennings	36 min
Jul 19, 5:23 PM EDT	Special Weather Statement	IND	Tippecanoe	37 min
Jul 19, 5:50 PM EDT	Special Weather Statement	IND	Fountain	25 min
Jul 19, 5:59 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Montgomery, Tippecanoe	31 min
Jul 19, 6:16 PM EDT	Special Weather Statement	IND	Parke	29 min
Jul 19, 6:29 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Montgomery, Putnam	31 min
Jul 19, 7:17 PM EDT	Special Weather Statement	IND	Hamilton	28 min
Jul 19, 7:48 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Marion, Rush, Shelby	27 min

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.