Alert archive / Indiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 9, NWS Northern Indiana

April 18, 2013LaPorte County, Starke County, Indiana

NWS Northern Indiana issued this severe thunderstorm warning at Apr 18, 2013, 9:05 AM CDT for LaPorte County, Starke County, Indiana. It was in force for 40 min. 3 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: Apr 18, 2013, 9:05 AM CDT (14:05 UTC)
Expired: Apr 18, 2013, 9:45 AM CDT
In force: 40 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties LaPorte County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 80 km from the middle of the area, began a volume at 14:05 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
Apr 18, 9:20 AM CDT	TSTM WND DMG	2 Sse Westville, IN	SEMI BLOWN OVER AT US 6 AND US 421 S. REPORT RELAYED BY ABC57
Apr 18, 9:24 AM CDT	TSTM WND DMG	1 Ese Hanna, IN	SEMI BLOWN OVER ON US 30 AT S 300 W. REPORT RELAYED BY ABC57
Apr 18, 9:35 AM CDT	TSTM WND GST 56	2 Ese Brems, IN

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 2 storm reports to this severe thunderstorm warning; the first came 15 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 18, 8:31 AM CDT	Tornado Watch PDS	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 2.1 hours before the alert went out and 230 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 474 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: -203 m²/s²
0-3 km storm-relative helicity: -478 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The text

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

987 
WUUS53 KIWX 181405
SVRIWX
INC091-149-181445-
/O.NEW.KIWX.SV.W.0009.130418T1405Z-130418T1445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
905 AM CDT THU APR 18 2013

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LA PORTE COUNTY IN NORTHWEST INDIANA...
  NORTHEASTERN STARKE COUNTY IN NORTHWEST INDIANA...

* UNTIL 945 AM CDT/1045 AM EDT/

* AT 901 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
  LINE EXTENDING FROM LAKES OF THE FOUR SEASONS TO HEBRON TO DE
  MOTTE...AND MOVING NORTHEAST AT 65 MPH.

  HAZARD...60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WANATAH AND LA CROSSE AROUND 915 AM CDT.
  WESTVILLE AROUND 920 AM CDT.
  KINGSFORD HEIGHTS AROUND 925 AM CDT.
  LA PORTE AND HAMLET AROUND 930 AM CDT.
  KOONTZ LAKE AROUND 935 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE SOUTH WANATAH...THOMASTON...
HASKELL...HANNA...OTIS...BREMS...PINOLA...UNION MILLS...TRACY AND
PINHOOK.

THIS INCLUDES INTERSTATE 80 90 IN INDIANA BETWEEN MILE MARKERS 0 AND
9.

THIS INCLUDES INTERSTATE 94 IN INDIANA BETWEEN MILE MARKERS 33 AND
45.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4177 8683 4176 8653 4166 8653 4166 8649
      4158 8648 4156 8650 4153 8651 4152 8653
      4144 8653 4144 8648 4138 8648 4125 8694
      4172 8695
TIME...MOT...LOC 1405Z 242DEG 55KT 4144 8718 4136 8709
          4125 8707

HAIL...<.75IN
WIND...60MPH

$$

NG

2 follow-up statements

985 
WWUS53 KIWX 181423
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1023 AM EDT THU APR 18 2013

INC091-149-181445-
/O.CON.KIWX.SV.W.0009.000000T0000Z-130418T1445Z/
STARKE IN-LA PORTE IN-
923 AM CDT THU APR 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LA PORTE AND
NORTHEASTERN STARKE COUNTIES UNTIL 945 AM CDT/1045 AM EDT/...

AT 919 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM WESTVILLE TO WANATAH TO LA CROSSE...AND MOVING
NORTHEAST AT 65 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL BE NEAR...
  LA PORTE AND HAMLET AROUND 930 AM CDT.
  KOONTZ LAKE AROUND 935 AM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE KINGSBURY...STILLWELL...SOUTH
CENTER...SALEM HEIGHTS...SPRINGVILLE...GROVERTOWN...BYRON...ROLLING
PRARIE...FISH LAKE AND HUDSON LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4177 8683 4176 8653 4166 8653 4166 8649
      4160 8648 4153 8651 4152 8653 4144 8653
      4144 8648 4138 8648 4129 8687 4172 8695
TIME...MOT...LOC 1423Z 242DEG 55KT 4157 8685 4149 8676
          4138 8674

HAIL...<.75IN
WIND...60MPH

$$

723 
WWUS53 KIWX 181434
SVSIWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1034 AM EDT THU APR 18 2013

INC091-149-181445-
/O.CON.KIWX.SV.W.0009.000000T0000Z-130418T1445Z/
STARKE IN-LA PORTE IN-
934 AM CDT THU APR 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN LA
PORTE AND NORTHEASTERN STARKE COUNTIES UNTIL 945 AM CDT/1045 AM
EDT/...

AT 932 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM LA PORTE TO 5 MILES NORTHEAST OF KINGSFORD
HEIGHTS TO HAMLET...AND MOVING NORTHEAST AT 55 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF EASTERN LA
PORTE AND NORTHEASTERN STARKE COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS HUDSON LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4176 8653 4166 8653 4166 8649 4161 8648
      4153 8651 4152 8653 4144 8653 4144 8648
      4138 8648 4134 8669 4176 8683
TIME...MOT...LOC 1434Z 246DEG 49KT 4162 8667 4154 8658
          4143 8656

HAIL...<.75IN
WIND...60MPH

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 18, 5:55 AM CDT, 3 hours 10 minutes earlier.

Area forecast discussion, Apr 18, 5:55 AM CDT, 3 hours 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
655 AM EDT THU APR 18 2013

.SHORT TERM...(TODAY AND TONIGHT)
ISSUED AT 352 AM EDT THU APR 18 2013

THE MAIN FOCUS IS ON SEVERE WX AND HEAVY RAIN POTENTIAL MAINLY
THIS AFTERNOON AND EVENING...

SYNOPTICALLY...08Z SFC ANALYSIS REVEALS A WARM FRONT DRAPED ACROSS
CENTRAL IN/IL BACK TO A DEVELOPING SFC LOW OVER CENTRAL MO...WITH A
COLD FRONT EXTENDING SOUTH INTO THE SOUTHERN PLAINS. THE SFC
REFLECTION WILL DEEPEN AS IT TRANSLATES NE TOWARD THE IL/IA BORDER
AND EVENTUALLY SOUTHERN WI. THIS WILL OCCUR AS AN INTENSE PV
ANOMALY IN BASE OF DEEP UPPER TROUGH JUST ENTERING THE CENTRAL
HIGH PLAINS LIFTS NORTHEAST INTO THE UPPER MIDWEST BY
TONIGHT...WITH A ROBUST 100-110 KNOT MID LEVEL JET MAX ROUNDING
THE BASE OF TROUGH INTO THE MID MISSISSIPPI VALLEY. ASSOCIATED
~180 METER CENTRAL CONUS MID LEVEL HEIGHT FALLS WILL ALLOW A 60-70
KNOT LOW LEVEL JET TO TAKE SHAPE TODAY FROM AR AND EASTERN MO
NORTHEAST INTO IL/NW INDIANA/MI. THIS JET WILL CARRY AN ABUNDANCE
OF MOISTURE WITH IT AND HELP FINALLY MIX THE WARM FRONT NORTH
THROUGH AT LEAST SOUTHERN/EASTERN ZONES BY 12-13Z.

ELEVATED SHOWERS/STORMS WITH LOCALLY HEAVY RAINFALL IN AREA OF MOIST
ISENTROPIC ASCENT NORTH OF THE FRONT WILL CONTINUE TO CLIP OUR FAR
NORTHWEST INDIANA AND SW LOWER MI ZONES THROUGH THE MORNING HOURS
WITH LIKELY POPS RETAINED HERE. THIS WILL LIMIT DIURNAL HEATING
AHEAD OF PRIMARY PRE-FRONTAL BOUNDARY THIS MORNING. SOUTHERN AND
EASTERN PORTIONS OF THE FORECAST AREA ARE NOW FORECAST TO BECOME
FIRMLY ENTRENCHED IN THE WARM SECTOR THIS MORNING WITH DRY/WINDY
CONDITIONS EXPECTED SHORTLY AFTER DAYBREAK. WIND GUSTS FOR A TIME
MAY APPROACH 45-50 MPH IN WARM SECTOR.

RICH BOUNDARY LAYER MOISTURE FOR MID APRIL (LOW TO MID 60S
DEWPOINTS) IN ADVANCING WARM SECTOR UNDER REMNANT EML AND DEEP
LAYERED 40-50 KNOT SHEAR SUGGEST A FAVORABLE ENVIRONMENT FOR SEVERE
THUNDERSTORMS BY THIS AFTERNOON/EVENING. THE INITIAL FOCUS FOR
CONVECTION WILL LIKELY BE A PRE-FRONTAL CONVECTIVE OUTFLOW
BOUNDARY THAT LATEST HI-RES GUIDANCE FORCES INTO OUR FAR WESTERN
ZONES BTW 15-17Z AND CENTRAL PORTIONS OF THE FA BTW 17-20Z. SPC
DOWNGRADED OUR FAR NORTHWEST (BENTON HARBOR/LA PORTE) DOWN TO A
SLIGHT RISK FOR SEVERE GIVEN THE EARLIER TIMING AND LACK OF
DIURNAL TEMP RECOVERY / BOUNDARY LAYER DESTABILIZATION. MODERATE
RISK WAS SHIFTED FARTHER EAST AND NOW ENCOMPASSES THE REST OF OUR
INDIANA AND MICHIGAN COUNTIES. ENOUGH INSOLATION/SFC HEATING INTO
THE 75-82F RANGE HERE SHOULD YIELD MLCAPE VALUES INTO THE
1000-1500 J/KG RANGE WITH LITTLE CONVECTIVE INHIBITION BY THIS
AFTERNOON.

AS FOR CONVECTIVE MODE/EVOLUTION/THREATS...QLCS DEVELOPMENT IS FAVORED
OVER DISCRETE SUPERCELLS AS LOW/MID LEVEL FLOW REMAINS NEARLY
PARALLEL TO THE LOW LEVEL CONVERGENT BOUNDARY RESULTING IN LESS
HODOGRAPH CURVATURE. THE MAIN THREAT IN THIS SETUP IS DAMAGING
WINDS...ALTHOUGH PROGGED 0-1 KM SHEAR IN EXCESS OF 30 KNOTS DOES
HINT AT THE POTENTIAL FOR MESOVORT TORNADO SPINUPS IN ANY BOWING
SEGMENTS.

THE OTHER THREAT IS HEAVY RAIN/FLOODING...MAINLY OVER NORTHWESTERN
PORTIONS OF THE FORECAST AREA AS PIVOT OF STRONGLY FORCED FRONT
THROUGH OUR OHIO ZONES WILL BE MORE TRANSITORY IN NATURE TONIGHT.
PWATS IN EXCESS OF 1.5" (99TH PERCENTILE), CONVECTIVE ELEMENT, AND
SATURATED SOILS WITH 1-3" (LOCALIZED 3-4" IN THE NW) OF ADDITIONAL
RAIN ANTICIPATED WARRANT CONTINUING THE AREA FLOOD WATCH THIS
AFTERNOON INTO TONIGHT.

&&

.LONG TERM...(FRIDAY THROUGH WEDNESDAY)
ISSUED AT 352 AM EDT THU APR 18 2013

STRONG CDFNT SHOULD BE EAST OF OUR CWA BY 12Z FRIDAY. SOME LINGERING
POST FRONTAL SHOWERS LIKELY OVER ERN PORTIONS OF THE AREA FRI
MORNING. BRIEF CLEARING PSBL BEHIND THE FRONT BEFORE WRAP AROUND
MOISTURE AND MID LEVEL TROF MOVES IN BY MIDDAY BRINGING CLOUDY SKIES
AND SCT SHOWERS BACK INTO THE AREA. STEEP LOW LEVEL LAPSE RATES
WILL EFFICIENTLY MIX DOWN STRONG WINDS ALOFT RESULTING IN ANOTHER
VERY WINDY DAY. A FEW SHOWERS MAY LINGER INTO FRI EVE WHEN BOUNDARY
LAYER SHOULD COOL SUFFICIENTLY TO ALLOW ANY PRECIP REACHING THE
GROUND TO BE SNOW.

HIGH PRESSURE EXPECTED TO MOVE ACROSS THE GRTLKS OVER THE WEEKEND
PROVIDING DRY WX AND COOL TEMPS. LATEST MEDIUM RANGE MODELS CONT TO
SUGGEST THAT ANOTHER RATHER STRONG LOW PRESSURE SYSTEM WILL DEVELOP
OVER THE SRN PLAINS AND TRACK NE INTO THE GRTLKS TUE OR WED.
CONSIDERABLE TIMING DIFFERENCES REMAIN SO LITTLE CHANGE TO PREVIOUS
FCST OF A CHC OF SHOWERS AND TSTMS EARLY NEXT WEEK... WITH TEMPS
NEAR NORMAL MON-TUE... TURNING COOLER BY WED.

&&

.AVIATION...(FOR THE 12Z TAFS THROUGH 12Z FRIDAY MORNING)
ISSUED AT 652 AM EDT THU APR 18 2013

WARM FRONT WAS LIFTING NORTH THROUGH NRN INDIANA EARLY
THIS MORNING WITH SHRA/TS IN AREA OF ISENT LIFT NORTH OF THE FRONT
OVER SRN-CENTRAL MI AND VFR CONDITIONS ACROSS NRN INDIANA. KIWX VWP
SHOWING VERY STRONG WINDS ALOFT... OVER 50KT AT 2KFT. WITH DIURNAL
HEATING TODAY... STRONG WINDS IN THE WARM SECTOR SHOULD MIX TO
THE SFC WITH GUSTS OF 30-35KT EXPECTED BY MIDDAY... STRONGEST AT
FWA. TS ARE EXPECTED TO MOVE EAST FROM IL AHEAD OF THE CDFNT AND
IMPACT THE TERMINALS THIS AFTN/EVE. SEVERE WINDS AND HAIL ARE PSBL
WITH THESE STORMS BUT HELD OFF ADDING THIS TO TAFS UNTIL BETTER
CONFIDENCE IN TIMING/OCCURRENCE IS EVIDENT.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...FLOOD WATCH FROM 2 PM EDT /1 PM CDT/ THIS AFTERNOON THROUGH
     FRIDAY MORNING FOR INZ003>009-012>018-020-022>027-032>034.

     WIND ADVISORY FROM 11 AM EDT /10 AM CDT/ THIS MORNING TO 8 PM
     EDT /7 PM CDT/ THIS EVENING FOR INZ003-012>018-020-022>027-
     032>034.

MI...FLOOD WATCH FROM 2 PM EDT THIS AFTERNOON THROUGH FRIDAY MORNING
     FOR MIZ077>081.

OH...FLOOD WATCH FROM 5 PM EDT THIS AFTERNOON THROUGH FRIDAY MORNING
     FOR OHZ002-004-005-015-016-024-025.

     FLOOD WATCH FROM 2 PM EDT THIS AFTERNOON THROUGH FRIDAY MORNING
     FOR OHZ001.

LM...GALE WARNING UNTIL 2 AM EDT SATURDAY FOR LMZ043-046.

&&

SHORT TERM...STEINWEDEL
LONG TERM...JT
AVIATION...JT

Hazardous weather outlook, Apr 18, 3:03 AM CDT, 6 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
403 AM EDT THU APR 18 2013

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-190815-
LA PORTE-ST. JOSEPH IN-ELKHART-LAGRANGE-STEUBEN-NOBLE-DE KALB-STARKE-
PULASKI-MARSHALL-FULTON IN-KOSCIUSKO-WHITLEY-ALLEN IN-WHITE-CASS IN-
MIAMI-WABASH-HUNTINGTON-WELLS-ADAMS-GRANT-BLACKFORD-JAY-BERRIEN-
CASS MI-ST. JOSEPH MI-BRANCH-HILLSDALE-WILLIAMS-FULTON OH-DEFIANCE-
HENRY-PAULDING-PUTNAM-VAN WERT-ALLEN OH-
INCLUDING THE CITIES OF...MICHIGAN CITY...LA PORTE...SOUTH BEND...
MISHAWAKA...ELKHART...GOSHEN...LAGRANGE...TOPEKA...ANGOLA...
KENDALLVILLE...LIGONIER...AUBURN...GARRETT...KNOX...NORTH JUDSON...
WINAMAC...FRANCESVILLE...PLYMOUTH...BREMEN...ROCHESTER...WARSAW...
WINONA LAKE...COLUMBIA CITY...SOUTH WHITLEY...FORT WAYNE...
MONTICELLO...BROOKSTON...LOGANSPORT...PERU...WABASH...
NORTH MANCHESTER...HUNTINGTON...BLUFFTON...OSSIAN...DECATUR...
BERNE...MARION...HARTFORD CITY...MONTPELIER...PORTLAND...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
STURGIS...THREE RIVERS...COLDWATER...HILLSDALE...BRYAN...WAUSEON...
ARCHBOLD...DEFIANCE...NAPOLEON...PAULDING...ANTWERP...OTTAWA...
PANDORA...VAN WERT...DELPHOS...LIMA
403 AM EDT THU APR 18 2013 /303 AM CDT THU APR 18 2013/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST OHIO...
NORTHERN INDIANA AND SOUTHWEST LOWER MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS MOST OF
THE AREA TODAY AND TONIGHT. THE MOST LIKELY TIMEFRAME FOR SEVERE
THUNDERSTORMS IS THIS AFTERNOON AND THIS EVENING. A LINE OF THUNDERSTORMS
IS EXPECTED TO MOVE EAST ACROSS THE AREA THIS AFTERNOON AND THIS
EVENING WITH WIDESPREAD WIND DAMAGE POSSIBLE AS THE STORMS MOVE
THROUGH. ISOLATED TORNADOES MAY ALSO OCCUR.

A FLOOD WATCH IS ALSO IN EFFECT TODAY AND TONIGHT.

A WIND ADVISORY IS IN EFFECT ALONG AND SOUTH OF ROUTE 30 IN
NORTHERN INDIANA TODAY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

VERY WINDY CONDITIONS ARE EXPECTED AGAIN FRIDAY.

THERE IS A CHANCE OF THUNDERSTORMS AGAIN ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION FOR SEVERE THUNDERSTORMS WILL LIKELY BE NEEDED
THIS AFTERNOON AND TONIGHT. SPOTTER REPORTS OF ANY FLOODING TODAY
AND TONIGHT WILL ALSO BE APPRECIATED.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX

LMZ043-046-190815-
NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI-
403 AM EDT THU APR 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE NEARSHORE WATERS OF
SOUTHEASTERN LAKE MICHIGAN.

.DAY ONE...TODAY AND TONIGHT

A GALE WARNING IS IN EFFECT. THUNDERSTORMS ARE ALSO EXPECTED...
SOME MAY BE SEVERE THIS AFTERNOON AND THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A GALE WARNING IS IN EFFECT THROUGH LATE FRIDAY NIGHT. A SMALL
CRAFT ADVISORY MAY BE NEEDED FOR SATURDAY MORNING.

THUNDERSTORMS ARE POSSIBLE TUESDAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...OR
CHECK OUR WEB SITE AT WEATHER.GOV/IWX/?N=MARINE

In the hours before

Special weather statement, Apr 18, 3:14 AM CDT, 5 hours 51 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
414 AM EDT THU APR 18 2013

INZ003-004-MIZ077-078-180900-
BERRIEN MI-CASS MI-LA PORTE IN-ST. JOSEPH IN-
414 AM EDT THU APR 18 2013

...THUNDERSTORMS MOVING TOWARD NORTHWESTERN CASS...BERRIEN...LA
PORTE AND NORTHWESTERN ST. JOSEPH COUNTIES...

AT 407 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SCATTERED THUNDERSTORMS OVER BERRIEN... LAPORTE... AND NORTHWESTERN
ST. JOSEPH COUNTY...MOVING NORTHEAST AT 65 MPH.

PEA SIZE HAIL...FREQUENT CLOUD TO GROUND LIGHTNING AND BRIEF HEAVY
DOWNPOURS ARE EXPECTED WITH THESE STORMS. THE HEAVY RAIN MAY CAUSE
STREET FLOODING.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...
  BUCHANAN...
  NILES...
  FAIR PLAIN AND ST. JOSEPH...
  DOWAGIAC...BENTON HEIGHTS AND BENTON HARBOR...
  NEW CARLISLE AND NEW BUFFALO...
  THREE OAKS AND SHOREWOOD-TOWER HILL...

STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES.

SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED.

LAT...LON 4207 8622 4208 8594 4206 8589 4140 8670
      4153 8694 4171 8694 4180 8676 4190 8662
      4211 8650 4224 8638 4225 8623
TIME...MOT...LOC 0811Z 219DEG 58KT 4156 8661

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:06 PM CDT	Special Weather Statement	IWX	Kosciusko, Noble, Whitley	39 min
Apr 17, 9:25 PM CDT	River Flood Warning	IWX	LaPorte, Saint Joseph, Starke	9 days
Apr 18, 2:47 AM CDT	Gale Warning	IWX		46 hr
Apr 18, 2:57 AM CDT	Wind Advisory	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 15 more	16 hr
Apr 18, 3:14 AM CDT	Special Weather Statement	IWX	LaPorte	46 min
Apr 18, 9:02 AM CDT	Special Marine Warning	IWX		58 min
Apr 18, 9:17 AM CDT	Severe Thunderstorm Warning	IWX	Cass, Pulaski, White	43 min
Apr 18, 9:38 AM CDT	Severe Thunderstorm Warning	IWX	Fulton, Marshall, Pulaski, Saint Joseph, Starke	52 min
Apr 18, 9:41 AM CDT	Special Weather Statement	IWX	Saint Joseph	49 min
Apr 18, 10:20 AM CDT	Special Weather Statement	IWX	Elkhart, Kosciusko	25 min
Apr 18, 10:21 AM CDT	River Flood Warning	IWX	Elkhart, Saint Joseph	13 days
Apr 18, 10:21 AM CDT	River Flood Warning	IWX	Elkhart, Saint Joseph	5 days
Apr 18, 11:04 AM CDT	River Flood Warning	IWX	Marshall, Saint Joseph, Starke	4 days
Apr 18, 11:40 AM CDT	Special Weather Statement	IWX	Steuben	50 min
Apr 18, 12:19 PM CDT	Special Weather Statement	IWX	Wells	26 min
Apr 18, 2:23 PM CDT	Areal Flood Advisory	IWX	Cass, Miami, White	6 hr
Apr 18, 5:28 PM CDT	Areal Flood Advisory	IWX	Adams, Allen, Blackford, Grant, Huntington, Jay and 3 more	6 hr
Apr 18, 5:43 PM CDT	Special Weather Statement	IWX	Adams, Jay	62 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2013 Every severe thunderstorm warning in 2013

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.