Alert archive / Indiana / Tornado Watches in 2006

Tornado Watch 79

March 13, 200619 counties in Indiana; 13 counties in Michigan

The Storm Prediction Center issued this tornado watch at Mar 13, 2006, 12:23 AM EST for 19 counties in Indiana; 13 counties in Michigan. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Mar 13, 2006, 12:23 AM EST (05:23 UTC)
Expired
Mar 13, 2006, 7:00 AM EST
In force
7 hr
Issued by
the Storm Prediction Center
All 32 counties

Allen County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, White County, IN, Whitley County, IN, Allegan County, MI, Barry County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Eaton County, MI, Hillsdale County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Saint Joseph County, MI, Van Buren County, MI

The radar

The Northern Indiana radar (KIWX), 97 km from the middle of the area, began a volume at 05:24 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.

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 13, 12:55 AM ESTTornado WarningIWXPulaski, White50 min
Mar 13, 2:37 AM ESTSevere Thunderstorm WarningIWXBerrien38 min
Mar 13, 3:13 AM ESTSevere Thunderstorm WarningIWXSaint Joseph32 min
Mar 13, 3:22 AM ESTSevere Thunderstorm WarningIWXElkhart38 min
Mar 13, 3:31 AM ESTSevere Thunderstorm WarningIWXSaint Joseph44 min
Mar 13, 3:45 AM ESTSevere Thunderstorm WarningIWXLaGrange45 min
Mar 13, 3:54 AM ESTSevere Thunderstorm WarningIWXBranch36 min
Mar 13, 5:30 AM ESTSevere Thunderstorm WarningIWXFulton, Kosciusko30 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 5.4 hours before the alert went out and 252 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 2006-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 730 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 2006-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 286 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
730 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
565 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
286 m²/s²
0-3 km storm-relative helicity
322 m²/s²
Significant tornado parameter
1.5
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

000 
WWUS20 KWNS 130523
SEL9  
SPC WW 130523
INZ000-MIZ000-LMZ000-131200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 79
NWS STORM PREDICTION CENTER NORMAN OK
1225 AM EST MON MAR 13 2006

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       NORTHERN INDIANA
       SOUTHWEST LOWER MICHIGAN
       LAKE MICHIGAN

EFFECTIVE THIS MONDAY MORNING FROM 1225 AM UNTIL 700 AM EST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF KALAMAZOO
MICHIGAN TO 60 MILES SOUTH SOUTHEAST OF VALPARAISO INDIANA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU9).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 76...WW 77...WW 78...

DISCUSSION...CLUSTERS OF SEVERE THUNDERSTORMS OVER NORTHERN IL WILL
SPREAD ACROSS WATCH AREA OVERNIGHT.  EXTREMELY STRONG WIND FIELDS
COUPLED WITH SUFFICIENT INSTABILITY WILL POSE A RISK OF LARGE
HAIL...DAMAGING WINDS...AND ISOLATED TORNADOES.  GREATEST TORNADO
RISK WILL BE WITH ISOLATED SUPERCELL MOVING INTO NORTHWEST IND.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 24040.


...HART

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 12, 7:28 PM ESTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 17 more92 min
Mar 12, 8:15 PM ESTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 24 more90 min
Mar 12, 8:28 PM ESTSevere Thunderstorm WatchSPCCarroll, Jo Daviess, Rock Island, Stephenson, Whiteside7 hr
Mar 12, 9:00 PM ESTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 47 more90 min
Mar 12, 9:42 PM ESTTornado WatchSPCAdams, Bond, Boone, Brown, Bureau, Calhoun and 58 more7 hr
Mar 13, 12:30 AM ESTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 41 more2 hr
Mar 13, 12:52 AM ESTMesoscale DiscussionSPCCarroll83 min
Mar 13, 1:35 AM ESTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more85 min
Mar 13, 2:06 AM ESTTornado WatchSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more6 hr
Mar 13, 4:19 AM ESTMesoscale DiscussionSPCChampaign, Clark, Clay, Coles, Crawford, Cumberland and 9 more86 min
Mar 13, 4:52 AM ESTTornado WatchSPCBond, Champaign, Clark, Clay, Coles, Crawford and 19 more7 hr
Mar 13, 7:08 AM ESTMesoscale DiscussionSPCAlexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 7 more97 min
Mar 12, 11:39 PM ESTMesoscale DiscussionSPCAllen, Carroll, Cass, Clinton, DeKalb, Elkhart and 18 more96 min
Mar 13, 7:56 AM ESTSevere Thunderstorm WatchSPCClark, Crawford, Dubois, Floyd, Gibson, Harrison and 9 more4 hr
Mar 13, 10:39 AM ESTMesoscale DiscussionSPCAdams, Allen, Blackford, Boone, Carroll, Cass and 28 more66 min
Mar 13, 10:44 AM ESTTornado WatchSPCAdams, Allen, DeKalb, Elkhart, Huntington, Kosciusko and 7 more5 hr
Mar 13, 11:22 AM ESTSevere Thunderstorm WatchSPCClark, Dearborn, Floyd, Harrison, Jefferson, Ohio and 3 more10 hr
Mar 13, 3:13 PM ESTMesoscale DiscussionSPCClark, Dearborn, Jefferson, Ohio, Ripley, Switzerland92 min
Mar 13, 3:16 AM ESTMesoscale DiscussionSPCBarry, Bay, Branch, Calhoun, Clinton, Eaton and 26 more89 min
Mar 13, 3:51 AM ESTTornado WatchSPCLenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more7 hr
Mar 13, 8:57 AM ESTMesoscale DiscussionSPCBaraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more5 hr
Mar 13, 3:19 PM ESTMesoscale DiscussionSPCLapeer, Macomb, Monroe, Oakland, Wayne56 min

Nearby

Tornado Watches in Indiana, 2006Tornado Watches in Michigan, 2006Every tornado watch in 2006

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.