Alert archive / Michigan / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Northern Indiana

March 15, 2012Steuben County, Indiana; Branch County, Hillsdale County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at Mar 15, 2012, 7:28 PM EDT for Steuben County, Indiana; Branch County, Hillsdale County, Michigan. It was in force for 47 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: Mar 15, 2012, 7:28 PM EDT (23:28 UTC)
Expired: Mar 15, 2012, 8:15 PM EDT
In force: 47 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Steuben County, IN, Branch County, MI, Hillsdale County, MI

The radar

The Northern Indiana radar (KIWX), 87 km from the middle of the area, began a volume at 23:30 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
Mar 15, 7:47 PM EDT	HAIL 1	1 Ne Kinderhook, MI
Mar 15, 7:49 PM EDT	HAIL 0.75	Kinderhook, MI

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

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 11.5 hours before the alert went out and 154 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: 2007 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 66 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.

328 
WUUS53 KIWX 152328
SVRIWX
INC151-MIC023-059-160015-
/O.NEW.KIWX.SV.W.0008.120315T2328Z-120316T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
728 PM EDT THU MAR 15 2012

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BRANCH COUNTY IN SOUTHWEST MICHIGAN...
  SOUTHWESTERN HILLSDALE COUNTY IN SOUTHEAST MICHIGAN...
  NORTHEASTERN STEUBEN COUNTY IN NORTHEAST INDIANA...

* UNTIL 815 PM EDT

* AT 725 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  SEVERE STORM WAS LOCATED 11 MILES NORTHWEST OF FREMONT...OR 9 MILES
  SOUTHWEST OF COLDWATER...AND MOVING EAST AT 20 MPH.

* LOCATIONS IN THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
  FREMONT...
  READING...

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
COLDWATER LAKE...KINDERHOOK...MARBLE LAKE...CALIFORNIA...RAY...CLEAR
LAKE...LONG LAKE...MONTGOMERY...CAMDEN...CAMBRIA...BEAR LAKE AND LAKE
WILSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4195 8465 4171 8464 4172 8493 4177 8512
      4190 8519
TIME...MOT...LOC 2328Z 277DEG 19KT 4183 8507
WIND...HAIL <50MPH 1.00IN

$$

NG

2 follow-up statements

432 
WWUS53 KIWX 152352
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
752 PM EDT THU MAR 15 2012

INC151-MIC023-059-160015-
/O.CON.KIWX.SV.W.0008.000000T0000Z-120316T0015Z/
STEUBEN IN-HILLSDALE MI-BRANCH MI-
752 PM EDT THU MAR 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR SOUTHEASTERN BRANCH...SOUTHWESTERN HILLSDALE AND NORTHEASTERN
STEUBEN COUNTIES...

AT 748 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS SEVERE
STORM WAS LOCATED 5 MILES NORTH OF FREMONT...OR ABOUT 10 MILES SOUTH
OF COLDWATER...AND MOVING EAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  FREMONT...READING...CALIFORNIA...RAY...LONG LAKE...CLEAR LAKE...
  MONTGOMERY...CAMDEN...CAMBRIA AND BEAR LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4173 8493 4177 8502 4191 8507 4195 8465
      4171 8464
TIME...MOT...LOC 2352Z 289DEG 20KT 4179 8493
WIND...HAIL <50MPH 1.00IN

$$

NG

160 
WWUS53 KIWX 160006
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
806 PM EDT THU MAR 15 2012

INC151-MIC023-059-160016-
/O.EXP.KIWX.SV.W.0008.000000T0000Z-120316T0015Z/
STEUBEN IN-HILLSDALE MI-BRANCH MI-
806 PM EDT THU MAR 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BRANCH...
SOUTHWESTERN HILLSDALE AND NORTHEASTERN STEUBEN COUNTIES WILL EXPIRE
AT 815 PM EDT...

AT 802 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAD WEAKENED.
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO
EXPIRE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4173 8493 4177 8502 4191 8507 4195 8465
      4171 8464
TIME...MOT...LOC 0006Z 289DEG 20KT 4173 8485

$$

NG

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 15, 5:01 AM EDT	Special Weather Statement	IWX	Kosciusko	44 min
Mar 15, 5:26 AM EDT	Special Weather Statement	IWX	Allen, DeKalb, Noble, Whitley	64 min
Mar 15, 6:25 AM EDT	Special Weather Statement	IWX	Wells	50 min
Mar 15, 3:58 PM EDT	Special Weather Statement	IWX	Pulaski	32 min
Mar 15, 5:21 PM EDT	Special Weather Statement	IWX	Pulaski	39 min
Mar 15, 5:22 PM EDT	Special Weather Statement	IWX	Noble	23 min
Mar 15, 5:29 PM EDT	Severe Thunderstorm Warning	IWX	Fulton, Pulaski	46 min
Mar 15, 5:51 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte, Starke	54 min
Mar 15, 6:11 PM EDT	Special Weather Statement	IWX	Miami	34 min
Mar 15, 6:43 PM EDT	Severe Thunderstorm Warning	IWX	Pulaski, Starke	47 min
Mar 15, 7:17 PM EDT	Special Weather Statement	IWX	Wabash	43 min
Mar 15, 7:20 PM EDT	Flash Flood Warning	IWX	Pulaski, Starke	6 hr
Mar 15, 7:32 PM EDT	Special Weather Statement	IWX	Pulaski	28 min
Mar 15, 4:24 AM EDT	Special Weather Statement	IWX	Cass	66 min
Mar 15, 5:25 AM EDT	Special Weather Statement	IWX	Saint Joseph	50 min
Mar 15, 5:27 AM EDT	Special Weather Statement	IWX	Saint Joseph	48 min
Mar 15, 6:30 AM EDT	Special Weather Statement	IWX	Branch, Hillsdale	60 min
Mar 15, 5:34 PM EDT	Special Weather Statement	IWX	Branch	41 min
Mar 15, 6:23 PM EDT	Special Weather Statement	IWX	Branch	22 min
Mar 15, 6:43 PM EDT	Special Weather Statement	IWX	Hillsdale	32 min
Mar 15, 6:48 PM EDT	Special Weather Statement	IWX	Branch	27 min
Mar 15, 7:21 PM EDT	Special Weather Statement	IWX	Branch	24 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2012 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.