Alert archive / Indiana / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 138, NWS Indianapolis, IN

July 1, 2012Daviess County, Knox County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 1, 2012, 7:13 PM EDT for Daviess County, Knox County, Indiana. It was in force for 47 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: Jul 1, 2012, 7:13 PM EDT (23:13 UTC)
Expired: Jul 1, 2012, 8:00 PM EDT
In force: 47 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Daviess County, IN, Knox County, IN

The radar

The Evansville,IN radar (KVWX), 67 km from the middle of the area, began a volume at 23:14 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 1, 7:20 PM EDT	TSTM WND GST 55	Bicknell, IN	ESTIMATED WINDS OF 50-60 MPH AROUND 700 PM EDT. HALF INCH SIZE HAIL OBSERVED AT THE CURRNT TIME.

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, 11.2 hours before the alert went out and 176 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: 2061 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 1957 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 67 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.

399 
WUUS53 KIND 012313
SVRIND
INC027-083-020000-
/O.NEW.KIND.SV.W.0138.120701T2313Z-120702T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
713 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DAVIESS COUNTY IN SOUTHWEST INDIANA...
  NORTHEASTERN KNOX COUNTY IN SOUTHWEST INDIANA...

* UNTIL 800 PM EDT

* AT 709 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 10
  MILES NORTHWEST OF WASHINGTON...OR 11 MILES NORTHEAST OF
  VINCENNES...AND MOVING NORTH AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BICKNELL...
  EDWARDSPORT...
  OAKTOWN...
  PLAINVILLE...
  FREELANDVILLE...
  SANDBORN...
  ELNORA...

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 3889 8755 3891 8753 3890 8743 3890 8706
      3870 8724 3874 8751 3876 8751 3877 8752
      3878 8750 3881 8753 3885 8753 3886 8755
TIME...MOT...LOC 2313Z 200DEG 9KT 3876 8732
WIND...HAIL 70MPH 1.00IN

$$

TDUD

1 follow-up statement

874 
WWUS53 KIND 012339
SVSIND

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
739 PM EDT SUN JUL 1 2012

INC027-083-020000-
/O.CON.KIND.SV.W.0138.000000T0000Z-120702T0000Z/
DAVIESS-KNOX-
739 PM EDT SUN JUL 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
DAVIESS AND NORTHEASTERN KNOX COUNTIES UNTIL 800 PM EDT...

AT 737 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 13 MILES
EAST OF RUSSELLVILLE...OR 15 MILES NORTHEAST OF VINCENNES...MOVING
NORTH AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  OAKTOWN...PLAINVILLE...FREELANDVILLE...SANDBORN AND ELNORA.

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 3889 8755 3891 8753 3890 8743 3890 8706
      3870 8724 3874 8751 3876 8751 3877 8752
      3878 8750 3881 8753 3885 8753 3886 8755
TIME...MOT...LOC 2339Z 200DEG 9KT 3882 8729
WIND...HAIL 60MPH 1.00IN

$$

HOMANN/TDUD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 3:01 AM EDT	Special Weather Statement	IND	Owen	29 min
Jul 1, 3:25 AM EDT	Special Weather Statement	IND	Monroe	35 min
Jul 1, 4:27 AM EDT	Excessive Heat Watch	IND	Daviess, Greene, Knox, Lawrence, Martin, Sullivan	11 hr
Jul 1, 5:00 AM EDT	Special Weather Statement	IND	Johnson, Morgan	30 min
Jul 1, 7:02 AM EDT	Special Weather Statement	IND	Jennings	28 min
Jul 1, 1:20 PM EDT	Special Weather Statement	IND	Carroll	40 min
Jul 1, 1:33 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Tippecanoe	57 min
Jul 1, 2:56 PM EDT	Severe Thunderstorm Warning	IND	Tipton	22 min
Jul 1, 3:17 PM EDT	Heat Advisory	IND	Bartholomew, Brown, Clay, Daviess, Decatur, Greene and 9 more	29 hr
Jul 1, 4:37 PM EDT	Severe Thunderstorm Warning	IND	Randolph	38 min
Jul 1, 5:22 PM EDT	Severe Thunderstorm Warning	IND	Decatur, Jennings	38 min
Jul 1, 5:56 PM EDT	Severe Thunderstorm Warning	IND	Knox	49 min
Jul 1, 6:04 PM EDT	Severe Thunderstorm Warning	IND	Jackson, Jennings	41 min
Jul 1, 6:43 PM EDT	Severe Thunderstorm Warning	IND	Knox	47 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.