Alert archive / Indiana / Flash Flood Watches in 2011

Flash Flood Watch 3, NWS Northern Indiana

April 26, 201121 counties in Indiana; 4 counties in Michigan; 8 counties in Ohio

NWS Northern Indiana issued this flash flood watch at Apr 26, 2011, 3:22 PM EDT for 21 counties in Indiana; 4 counties in Michigan; 8 counties in Ohio. It took effect at Apr 27, 2011, 2:00 AM EDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Apr 26, 2011, 3:22 PM EDT (19:22 UTC)
In effect from
Apr 27, 2011, 2:00 AM EDT
Expired
Apr 28, 2011, 4:00 AM EDT
In force
26 hr
Issued by
NWS Northern Indiana
Flood severity
None
All 33 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Branch County, MI, Cass County, MI, Hillsdale County, MI, Saint Joseph County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 38 km from the middle of the area, began a volume at 19:22 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.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.4 hours before the alert went out and 233 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, Detroit, MI at 12:00Z on 2011-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Detroit, MI at 12:00Z on 2011-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 687 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
687 m²/s²
0-3 km storm-relative helicity
744 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

824 
WGUS63 KIWX 261922
FFAIWX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
322 PM EDT TUE APR 26 2011

...FLASH FLOOD WATCH ACROSS THE AREA LATE TONIGHT AND WEDNESDAY...

.A LOW PRESSURE SYSTEM WILL MOVE NORTH-NORTHEAST ALONG A STALLED
BOUNDARY ACROSS THE AREA LATE TONIGHT AND WEDNESDAY. THIS SYSTEM
IS EXPECTED TO CAUSE HEAVY RAIN... AT LEAST OVER PORTIONS OF THE
AREA. THE COMBINATION OF HEAVY RAINFALL ON SATURATED GROUNDS WITH
RIVERS ACROSS THE AREA RUNNING HIGH OR ALREADY ABOVE FLOOD
STAGE... MAY RESULT IN FLASH FLOODING OF STREAMS... CREEKS... AND
OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA
ALSO POSSIBLE.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-270330-
/O.NEW.KIWX.FF.A.0003.110427T0600Z-110428T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
322 PM EDT TUE APR 26 2011 /222 PM CDT TUE APR 26 2011/

...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHERN INDIANA...SOUTHWEST 
 MICHIGAN AND NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...
 IN NORTHERN INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...
 DE KALB...ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...
 KOSCIUSKO...LA PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...
 PULASKI...ST. JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...
 WHITE AND WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...
 CASS MI...HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...
 ALLEN OH...DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...
 VAN WERT AND WILLIAMS.

* FROM LATE TONIGHT THROUGH WEDNESDAY EVENING

* HEAVY RAIN... AT LEAST OVER PORTIONS OF THE AREA IS EXPECTED
  LATE TONIGHT AND WEDNESDAY. THE COMBINATION OF HEAVY RAINFALL ON
  SATURATED GROUNDS WITH RIVERS ACROSS THE AREA RUNNING HIGH OR
  ALREADY ABOVE FLOOD STAGE... MAY RESULT IN FLASH FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS... CREEKS... AND
  OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA
  ALSO POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
5 follow-up statements
205 
WGUS63 KIWX 270316
FFAIWX

FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1116 PM EDT TUE APR 26 2011

...FLASH FLOOD WATCH ACROSS THE AREA LATE TONIGHT AND WEDNESDAY...

.A LOW PRESSURE SYSTEM WILL MOVE NORTH NORTHEAST ALONG A STALLED
BOUNDARY ACROSS THE AREA OVERNIGHT AND WEDNESDAY. THIS SYSTEM
IS EXPECTED TO CAUSE HEAVY RAIN... AT LEAST OVER PORTIONS OF THE
AREA. THE COMBINATION OF HEAVY RAINFALL ON SATURATED GROUNDS WITH
RIVERS ACROSS THE AREA RUNNING HIGH OR ALREADY ABOVE FLOOD
STAGE... MAY RESULT IN FLASH FLOODING OF STREAMS... CREEKS... AND
OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA
ALSO POSSIBLE.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-271130-
/O.CON.KIWX.FF.A.0003.110427T0600Z-110428T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
1116 PM EDT TUE APR 26 2011 /1016 PM CDT TUE APR 26 2011/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN INDIANA...SOUTHWEST MICHIGAN AND 
 NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
 INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...DE KALB...
 ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...KOSCIUSKO...
 LA PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...PULASKI...ST. 
 JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...WHITE AND 
 WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...CASS MI...
 HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...ALLEN OH...
 DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...VAN WERT 
 AND WILLIAMS.

* THROUGH WEDNESDAY EVENING

* HEAVY RAIN... AT LEAST OVER PORTIONS OF THE AREA IS EXPECTED
  OVERNIGHT AND WEDNESDAY. THE COMBINATION OF HEAVY RAINFALL ON
  SATURATED GROUNDS WITH RIVERS ACROSS THE AREA RUNNING HIGH OR
  ALREADY ABOVE FLOOD STAGE...MAY RESULT IN FLASH FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS... CREEKS... 
  AND OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE 
  AREA ALSO POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
349 
WGUS63 KIWX 270853
FFAIWX

FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
453 AM EDT WED APR 27 2011

...FLASH FLOOD WATCH ACROSS THE AREA THROUGH THIS EVENING...

.A PAIR OF ADDITIONAL UPPER LEVEL DISTURBANCES WILL INTERACT WITH
A STALLED FRONTAL BOUNDARY ACROSS THE AREA TO PROVIDE MORE SHOWERS
AND THUNDERSTORMS FROM THIS MORNING THROUGH THIS EVENING. THE
COMBINATION OF HEAVY RAINFALL ON SATURATED GROUNDS AND RIVERS
ACROSS THE AREA RUNNING HIGH OR ALREADY ABOVE FLOOD STAGE...MAY
RESULT IN FLASH FLOODING OF STREAMS...CREEKS...AND OTHER LOW LYING
AREAS TODAY. RAPID WATER RISES ARE ALSO POSSIBLE ON AREA RIVERS.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-271700-
/O.CON.KIWX.FF.A.0003.000000T0000Z-110428T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
453 AM EDT WED APR 27 2011 /353 AM CDT WED APR 27 2011/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN INDIANA...SOUTHWEST MICHIGAN AND NORTHWEST
  OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTHERN
  INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...DE KALB...
  ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...KOSCIUSKO... LA
  PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...PULASKI...ST.
  JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...WHITE AND
  WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...CASS MI...
  HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...ALLEN OH...
  DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...VAN WERT AND
  WILLIAMS.

* THROUGH THIS EVENING

* HEAVY RAIN...HEAVY RAINFALL IS POSSIBLE ACROSS THE AREA THIS
  MORNING. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP
  THIS AFTERNOON...AT LEAST ACROSS PORTIONS OF THE AREA...WHICH
  WILL ALSO BE CAPABLE OF LOCALIZED HEAVY RAIN. THE COMBINATION OF
  HEAVY RAINFALL ON SATURATED GROUNDS WITH RIVERS ACROSS THE AREA
  RUNNING HIGH OR ALREADY ABOVE FLOOD STAGE...MAY RESULT IN FLASH
  FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS... CREEKS... 
  AND OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE 
  AREA ALSO POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
162 
WGUS63 KIWX 271523
FFAIWX

FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1123 AM EDT WED APR 27 2011

...FLASH FLOOD WATCH ACROSS THE AREA THROUGH THIS EVENING...

.A PAIR OF UPPER LEVEL DISTURBANCES WILL INTERACT WITH A STALLED
FRONTAL BOUNDARY ACROSS THE AREA TO PROVIDE MORE SHOWERS AND
THUNDERSTORMS THROUGH THIS EVENING. RAINFALL ASSOCIATED WITH THE
FIRST OF THESE TWO SYSTEMS WILL LIFT NORTH OF THE AREA EARLY THIS
AFTERNOON... WHILE RAIN ASSOCIATED WITH THE SECOND SYSTEM
CURRENTLY OVER THE SOUTHERN PLAINS AND MID MISSISSIPPI WILL LIKELY
SPREAD BACK INTO THE AREA LATE THIS AFTERNOON. THE COMBINATION OF
HEAVY RAINFALL ON SATURATED GROUNDS MAY RESULT IN FLASH FLOODING
OF STREAMS...CREEKS...AND OTHER LOW LYING AREAS TODAY. RAPID WATER
RISES ARE ALSO POSSIBLE ON RIVERS IN THE AREA.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-280000-
/O.CON.KIWX.FF.A.0003.000000T0000Z-110428T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
1123 AM EDT WED APR 27 2011 /1023 AM CDT WED APR 27 2011/

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 8 PM EDT /7 PM CDT/
THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN INDIANA...SOUTHWEST MICHIGAN AND 
 NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
 INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...DE KALB...
 ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...KOSCIUSKO...
 LA PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...PULASKI...ST. 
 JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...WHITE AND 
 WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...CASS MI...
 HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...ALLEN OH...
 DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...VAN WERT 
 AND WILLIAMS.

* UNTIL 8 PM EDT /7 PM CDT/ THIS EVENING

* HEAVY RAIN WILL TAPER OFF EARLY THIS AFTERNOON... HOWEVER MORE
  SHOWERS AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP THIS
  AFTERNOON...AT LEAST ACROSS PORTIONS OF THE AREA...WHICH WILL
  ALSO BE CAPABLE OF LOCALIZED HEAVY RAIN. THE COMBINATION OF
  HEAVY RAINFALL ON SATURATED GROUNDS...MAY RESULT IN FLASH
  FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS... CREEKS... 
 AND OTHER LOW LYING AREAS... WITH RAPID RISES ON RIVERS IN THE 
 AREA ALSO POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
984 
WGUS63 KIWX 271847
FFAIWX

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
247 PM EDT WED APR 27 2011

...FLASH FLOOD WATCH ACROSS THE AREA EXTENDED THROUGH LATE TONIGHT...

.A STRONG LOW PRESSURE SYSTEM OVER ARKANSAS THIS AFTERNOON IS
EXPECTED TO MOVE RAPIDLY NORTHEAST TO SOUTHERN ONTARIO BY THURSDAY
MORNING. RAIN WILL OVERSPREAD THE AREA AS THIS SYSTEM MOVES THROUGH
OVERNIGHT...WITH ADDITIONAL RAINFALL AMOUNTS AROUND AN INCH
POSSIBLE. THIS HEAVY RAIN COMBINED WITH SATURATED GROUND
CONDITIONS MAY RESULT IN FLASH FLOODING OF STREAMS AND OTHER LOW
LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA ALSO
POSSIBLE.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-280300-
/O.EXT.KIWX.FF.A.0003.000000T0000Z-110428T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
247 PM EDT WED APR 27 2011 /147 PM CDT WED APR 27 2011/

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH LATE TONIGHT...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* PORTIONS OF NORTHERN INDIANA...SOUTHWEST MICHIGAN AND 
 NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
 INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...DE KALB...
 ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...KOSCIUSKO...
 LA PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...PULASKI...ST. 
 JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...WHITE AND 
 WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...CASS MI...
 HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...ALLEN OH...
 DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...VAN WERT 
 AND WILLIAMS.

* THROUGH LATE TONIGHT

* RAIN WILL OVERSPREAD THE AREA AGAIN TONIGHT WITH ADDITIONAL
  RAINFALL AMOUNTS AROUND AN INCH POSSIBLE BY THURSDAY MORNING. THE
  COMBINATION OF HEAVY RAINFALL ON SATURATED GROUNDS...MAY RESULT
  IN FLASH FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS AND OTHER LOW
  LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA ALSO
  POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$
634 
WGUS63 KIWX 280157
FFAIWX

FLOOD WATCH
NATIONAL WEATHER SERVICE NORTHERN INDIANA
957 PM EDT WED APR 27 2011

...FLASH FLOOD WATCH IN EFFECT TONIGHT...

.A STRONG LOW PRESSURE SYSTEM OVER SOUTHERN INDIANA WILL TRACK
NORTHEAST INTO SOUTHEAST ONTARIO BY THURSDAY MORNING. RAIN WILL
CONTINUE TO OVERSPREAD THE AREA AS THIS SYSTEM MOVES THROUGH
OVERNIGHT...WITH ADDITIONAL RAINFALL AMOUNTS BETWEEN A HALF INCH
AND AN INCH...AND POSSIBLE HIGHER AMOUNTS IN THUNDERSTORMS
GENERALLY EAST OF INTERSTATE 69. THIS POTENTIAL HEAVY RAIN
COMBINED WITH SATURATED GROUND CONDITIONS MAY RESULT IN FLASH
FLOODING OF STREAMS AND OTHER LOW LYING AREAS...WITH RAPID RISES
ON RIVERS IN THE AREA ALSO POSSIBLE.

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-
005-015-016-024-025-280800-
/O.CON.KIWX.FF.A.0003.000000T0000Z-110428T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
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...NEW CARLISLE...WALKERTON...ELKHART...GOSHEN...
NAPPANEE...LAGRANGE...TOPEKA...SHIPSHEWANA...ANGOLA...FREMONT...
KENDALLVILLE...LIGONIER...ALBION...AUBURN...GARRETT...KNOX...
NORTH JUDSON...BASS LAKE...WINAMAC...FRANCESVILLE...MEDARYVILLE...
PLYMOUTH...BREMEN...CULVER...ROCHESTER...AKRON...WARSAW...
WINONA LAKE...SYRACUSE...MENTONE...COLUMBIA CITY...TRI-LAKES...
SOUTH WHITLEY...FORT WAYNE...NEW HAVEN...MONTICELLO...BROOKSTON...
MONON...LOGANSPORT...ROYAL CENTER...PERU...GRISSOM AFB...MEXICO...
WABASH...NORTH MANCHESTER...HUNTINGTON...ROANOKE...BLUFFTON...
OSSIAN...DECATUR...BERNE...MARION...GAS CITY...UPLAND...
HARTFORD CITY...MONTPELIER...PORTLAND...DUNKIRK...NILES...
BENTON HARBOR...ST. JOSEPH...BUCHANAN...DOWAGIAC...CASSOPOLIS...
MARCELLUS...STURGIS...THREE RIVERS...WHITE PIGEON...MENDON...
COLDWATER...BRONSON...HILLSDALE...LITCHFIELD...JONESVILLE...
BRYAN...WAUSEON...ARCHBOLD...FAYETTE...SWANTON...DEFIANCE...
SHERWOOD...HICKSVILLE...NAPOLEON...DESHLER...LIBERTY CENTER...
PAULDING...ANTWERP...MELROSE...OTTAWA...PANDORA...KALIDA...
FORT JENNINGS...VAN WERT...DELPHOS...OHIO CITY...LIMA...
SPENCERVILLE
957 PM EDT WED APR 27 2011 /857 PM CDT WED APR 27 2011/

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM EDT /3 AM CDT/
THURSDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHERN INDIANA...SOUTHWEST MICHIGAN AND 
  NORTHWEST OHIO...INCLUDING THE FOLLOWING AREAS...IN NORTHERN 
  INDIANA...ADAMS...ALLEN IN...BLACKFORD...CASS IN...DE KALB...
  ELKHART...FULTON IN...GRANT...HUNTINGTON...JAY...KOSCIUSKO...
  LA PORTE...LAGRANGE...MARSHALL...MIAMI...NOBLE...PULASKI...ST. 
  JOSEPH IN...STARKE...STEUBEN...WABASH...WELLS...WHITE AND 
  WHITLEY. IN SOUTHWEST MICHIGAN...BERRIEN...BRANCH...CASS MI...
  HILLSDALE AND ST. JOSEPH MI. IN NORTHWEST OHIO...ALLEN OH...
  DEFIANCE...FULTON OH...HENRY...PAULDING...PUTNAM...VAN WERT 
  AND WILLIAMS.

* UNTIL 4 AM EDT /3 AM CDT/ THURSDAY

* RAIN WILL CONTINUE TO OVERSPREAD THE AREA AGAIN TONIGHT WITH
  ADDITIONAL RAINFALL AMOUNTS AROUND AN INCH POSSIBLE BY THURSDAY
  MORNING. THE COMBINATION OF HEAVY RAINFALL ON SATURATED
  GROUNDS...MAY RESULT IN FLASH FLOODING.

* HEAVY RAIN MAY CAUSE FLASH FLOODING OF STREAMS AND OTHER LOW 
  LYING AREAS... WITH RAPID RISES ON RIVERS IN THE AREA ALSO 
  POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.

YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.

&&

$$

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Apr 26, 2:44 PM EDT, 38 minutes earlier.

Area forecast discussion, Apr 26, 2:44 PM EDT, 38 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTHERN INDIANA
244 PM EDT TUE APR 26 2011

.SHORT TERM...
SHRTWV LIFTING NE ACROSS THE AREA THIS AFTN AS ANOTHER STRONG UPR
LEVEL TROF DIGS INTO THE SRN PLAINS. THIS WILL CAUSE CDFNT OVER WRN
IL TO MOVE INTO OUR AREA THIS EVE AND WEAKEN/STALL OUT AS NEXT LOW
DEEPENS OVER THE SRN PLAINS. IN RESPONSE TO NRN SHRTWV/CDFNT... SCT
TSTMS WHICH DEVELOPED OVER CENTRAL IL EARLY THIS AFTN SHOULD MOVE
ACROSS OUR AREA LATE THIS AFTN/EARLY THIS EVE. 12Z NAM NOT AS
BULLISH WITH BACKED SOUTHERLY LOW LEVEL FLOW/CURVED HODOGRAPHS
DURING THIS PERIOD AS EARLIER RUN... AND WOLCOTT PROFILER/18Z DTX
SOUNDING INDICATES ONLY WK DIRECTIONAL SHEAR THOUGH STRONG SPEED
SHEAR. ALSO... CLOUD COVER HAS LIMITED DIURNAL
HEATING/DESTABILIZATION OVER OUR AREA BUT THE LOW CLOUDS APPEAR TO
GRDLY BREAKING UP ON VISIBLE IMAGERY. THUS... RISK OF SVR TSTMS
STILL VALID LATE THIS AFTN/EARLY EVE... WITH GREATEST THREAT
DAMAGING WINDS. LARGE HAIL ALSO PSBL AS COOLING ALOFT ASSOCIATED
WITH SHRTWV LIFTING ACROSS THE CWA STEEPENS LAPSE RATES.

MODELS APPEAR TO HAVE CONVECTIVE FEEDBACK ISSUES WITH SRN PLAINS LOW
AS IT LIFTS NNE ALONG STALLED BOUNDARY AND ACROSS OUR CWA
TONIGHT/WED. GIVEN THIS PROBLEM, LEANED TOWARD LATEST SREF WHICH
SUGGESTS A SLOWER AND MORE CONSISTENT DEEPENING AS THE LOW MOVES
THROUGH THE AREA. GIVEN STRONG FORCING OVER PROLONGED PERIOD AS LOW
LIFTS NNE ALONG STALLED BOUNDARY IN EXCESSIVELY MOIST AIRMASS WITH
PWAT >1"... LOCALLY HEAVY RAINFALL CERTAINLY LOOKS PSBL AS INDICATED
BY VARIOUS MODEL SOLUTIONS...ALBEIT AT DIFFERENT TIMES AND
LOCATIONS. HWVR...GIVEN SATURATED GROUND CONDITIONS AND HIGH RIVER
LEVELS FROM PERSISTENT RAINS OVER THE PAST FEW WEEKS... FEEL THREAT
OF FLOODING AS THIS SYSTEM MOVES THROUGH IS HIGH ENOUGH TO ISSUE AN
FFA ACROSS THE CWA.

LARGE DIFFERENCES AMONG SHORT RANGE MODELS ON HOW LONG RAIN FROM
THIS SYSTEM WILL LINGER OVER THE AREA WITH GFS SUGGESTING HEAVY RAIN
MAY PERSIST IN DEFORMATION ZONE OVER NW PORTION OF CWA WHILE NAM HAS
MORE WESTERLY TRACK OF UPR LOW PLACING CWA IN DRY SLOT BY WED EVE.
SREF CONTS TO BE A GOOD COMPROMISE SOLUTION WITH WKR SHRTWV LIFTING
NE ACROSS INDIANA/NW OH WED NGT...KEEPING SHOWERS GOING ACROSS OUR
AREA BUT WITH LESS QPF THAN INDICATED BY GFS.

LITTLE CHANGE TO PREVIOUS GRIDDED TEMPS OR 12Z MOS FORECASTS WITH
LOWS TONIGHT EXPECTED TO RANGE FROM THE M40S NEAR LM TO THE UPR 50S
SE... HIGHS WED FROM THE L60S NW TO THE L70S SE... AND TURNING
COOLER WED NGT WITH LOWS IN THE 40S.

&&

.LONG TERM...THURSDAY THROUGH TUESDAY

RAW AND BREEZY CONDITIONS ARE EXPECTED THURSDAY INTO THURSDAY
EVENING UNDERNEATH A MID LEVEL TROUGH AXIS THAT WILL BE PIVOTING
THROUGH THE GREAT LAKES AND OH VALLEY. ALSO EXPECT SCATTERED SHOWERS
PER CYCLONIC FLOW AND WRAP AROUND MOISTURE WITHIN A RELATIVELY
UNSTABLE ENVIRONMENT BELOW 700 HPA. COVERAGE OF SHOWERS AND DRIZZLE
STILL A LITTLE UNCERTAIN SO DECIDED AGAINST UPGRADING FROM CHC TO
SCT WORDING FOR THIS PACKAGE. RIDGING THROUGH THE COLUMN WILL PASS
THROUGH THE AREA FRIDAY INTO SATURDAY MORNING...WHICH WILL PROVIDE
THE FA WILL CLEARING SKIES AND WARMING TEMPS. RETURN FLOW BEHIND
THIS RIDGE BY SATURDAY AFTERNOON WILL SUPPORT ADDITIONAL WAA AND
HIGHS ABOVE NORMAL...APPROXIMATELY 20 DEGREES WARMER THAN THURSDAY.

ATTENTION THEN TURNS TO THE NEXT LONGWAVE UPPER TROUGH TO IMPACT THE
FA SATURDAY NIGHT THROUGH MONDAY. STILL PLENTY OF SPREAD WITHIN
MODEL SOLUTIONS...WITH THE GFS/GEFS MUCH MORE PROGRESSIVE WITH THE
TROUGH AND THE ECMWF MUCH SLOWER. THESE DIFFERENCES ARE MAINLY TIED
TO THE SPEED/DEPTH OF ENERGY ROUNDING THE BASE OF THIS TROUGH AND THE
EASTERN PROGRESS OF AN UPPER LOW THAT MAY STALL OUT OVER THE WESTERN
ATLANTIC FOR A TIME. MORE IMPRESSIVE AND FARTHER WEST WESTERN
ATLANTIC BLOCKING CONTINUES TO BE OFFERED UP IN THE ECMWF...WHICH
HAS RESULTED IN THE SLOWER UPSTREAM TROUGH AND FROPA. TAILORED GRIDS
TOWARDS A GEFS/GFS/ECMWF/PREVIOUS FCST BLEND FOR THIS PACKAGE. OPTED
NOT TO RAISE POPS SATURDAY NIGHT INTO SUNDAY AS THE CWA COULD GET
SPLIT WITH STRONGER FORCING MISSING TO THE NW AND DEEPER MOISTURE
AND INSTABILITY LOCKED UP TO THE SOUTH. LOWERED POPS A BIT ACROSS
THE NORTH ON SUNDAY GIVEN THE TREND TOWARDS THE GFS/GEFS/UKMET
SOLUTIONS. HYDRO/HVY RAIN THREAT NOT LOOKING AS IMPRESSIVE AS THE
CURRENT SYSTEM AS THIS UPPER TROUGH HAS A MORE POSITIVE/NUETRAL LOOK
TO IT. COOLER AIR WILL FILTER IN EARLY NEXT WEEK BEHIND THIS
SYSTEM. LEFT MONDAY AND TUESDAY DRY AT THIS TIME...ALTHOUGH COULD
SEE A FEW INSTABILITY SHOWERS UNDER COLD POOL MONDAY.
COVERAGE/CONFIDENCE TOO LOW TO INTRODUCE POPS ATTM.

&&

.AVIATION...
AIRMASS IN WARM SECTOR DESTABILIZING AND TSTMS FORMING OVER
CENTRAL IL EARLY THIS AFTN. THESE SHOULD MOVE NE AND SPREAD EAST THIS
AFTN AS DIFFUSE CDFNT ALONG MS RIVER MOVES EAST AND UPR LEVEL
SHRTWV LIFTS NE ACROSS NRN INDIANA. ANOTHER LOW PRESSURE SYSTEM
EXPECTED TO LIFT NNE ALONG STALLED FRONT LATE TONIGHT AND WED.
FCST PREDOMINANTLY MVFR CONDITIONS THROUGH THE PERIOD... THOUGH BRIEF
IFR CONDITIONS IN TSRA PSBL THIS AFTN/EVE... ALSO MORE WIDESPREAD
IFR CONDITIONS COULD DVLP LATE TONIGHT OR WED AS NEXT LOW MOVES
THROUGH.

&&

.IWX WATCHES/WARNINGS/ADVISORIES...
IN...FLASH FLOOD WATCH FROM 2 AM EDT /1 AM CDT/ WEDNESDAY THROUGH
     WEDNESDAY EVENING FOR INZ003>009-012>018-020-022>027-
     032>034.

MI...FLASH FLOOD WATCH FROM 2 AM EDT WEDNESDAY THROUGH WEDNESDAY
     EVENING FOR MIZ077>081.

OH...FLASH FLOOD WATCH FROM 2 AM EDT WEDNESDAY THROUGH WEDNESDAY
     EVENING FOR OHZ001-002-004-005-015-016-024-025.

LM...SMALL CRAFT ADVISORY UNTIL 11 PM EDT THIS EVENING FOR LMZ043-046.

&&

SHORT TERM...JT
LONG TERM...STEINWEDEL
AVIATION...JT
Hazardous weather outlook, Apr 26, 3:21 PM EDT, 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORTHERN INDIANA
321 PM EDT TUE APR 26 2011

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-271930-
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
321 PM EDT TUE APR 26 2011 /221 PM CDT TUE APR 26 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

WATER LEVELS ON MANY AREA RIVERS WILL CONTINUE TO RISE THIS
AFTERNOON. PLEASE CONSULT RIVER PRODUCTS ISSUED BY THIS OFFICE
FOR ADDITIONAL DETAILS ON RIVER FLOOD WATCHES AND WARNINGS.

SOUTH WINDS WILL GUST TO 30 TO 40 MPH LATE THIS AFTERNOON.

SCATTERED THUNDERSTORMS ARE EXPECTED LATE THIS AFTERNOON AND EARLY
THIS EVENING. SOME OF THE STORMS MAY BE SEVERE... WITH LARGE
HAIL... DAMAGING WINDS... AND ISOLATED TORNADOES BEING THE MAIN
THREAT.

MORE RAIN WILL LIFT NORTHWARD INTO THE AREA LATE TONIGHT INTO
WEDNESDAY WITH LOCALLY HEAVY RAINFALL POSSIBLE. MANY AREAS REMAIN
SATURATED FROM RECENT HEAVY RAINFALL...AND ADDITIONAL RAIN LATE
TONIGHT MAY RESULT IN FLASH FLOODING... THUS A FLASH FLOOD WATCH
IS IN EFFECT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A FLASH FLOOD WATCH IS IN EFFECT FOR WEDNESDAY.

RIVER FLOODING WILL BECOME INCREASINGLY LIKELY FOR MID TO LATE
WEEK AS RUNOFF FROM RAIN TODAY AND WEDNESDAY WILL LEAD TO
ADDITIONAL RIVER RISES.

THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AND WEDNESDAY
NIGHT. SOME OF THE STORMS COULD BE SEVERE...ESPECIALLY ACROSS
NORTHWEST OHIO AND NORTHEAST INDIANA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED LATE THIS AFTERNOON AND EARLY
THIS EVENING.

&&

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

LMZ043-046-271930-
NEW BUFFALO MI TO ST JOSEPH MI-MICHIGAN CITY IN TO NEW BUFFALO MI-
321 PM EDT TUE APR 26 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

HAZARDOUS CONDITIONS FOR SMALL CRAFT WILL PERSIST THROUGH THIS EVENING.

THERE IS A CHANCE OF THUNDERSTORMS LATE THIS AFTERNOON AND EARLY
THIS EVENING. SOME OF THE STORMS COULD BE SEVERE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

HAZARDOUS CONDITIONS FOR SMALL CRAFT CAN BE EXPECTED AGAIN LATE
WEDNESDAY NIGHT INTO THURSDAY EVENING.

&&

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 9:02 PM EDTFlash Flood WatchIWXAdams, Allen, Blackford, DeKalb, Grant, Huntington and 6 more7 hr
Apr 25, 9:54 PM EDTRiver Flood WarningIWXAllen6 days
Apr 25, 9:54 PM EDTRiver Flood WarningIWXAdams, Allen6 days
Apr 26, 12:18 PM EDTRiver Flood WarningIWXFulton, Kosciusko, Marshall, Pulaski, Starke9 days
Apr 26, 1:44 PM EDTRiver Flood WatchIWXCarroll, White35 hr
Apr 26, 4:30 PM EDTSpecial Weather StatementIWXPulaski30 min
Apr 26, 5:00 PM EDTSpecial Weather StatementIWXPulaski30 min
Apr 26, 5:12 PM EDTSpecial Weather StatementIWXLaPorte33 min
Apr 26, 5:18 PM EDTSevere Thunderstorm WarningIWXLaPorte, Saint Joseph42 min
Apr 26, 5:31 PM EDTSpecial Weather StatementIWXMarshall29 min
Apr 26, 5:43 PM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall32 min
Apr 26, 6:14 PM EDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, LaGrange, Noble20 min
Apr 26, 7:24 PM EDTSpecial Weather StatementIWXPulaski36 min
Apr 26, 5:57 PM EDTSevere Thunderstorm WarningIWXBerrien, Cass38 min
Apr 26, 6:00 PM EDTSpecial Weather StatementIWXVan Buren15 min
Apr 26, 7:38 PM EDTSpecial Weather StatementIWXCass37 min
Apr 25, 9:54 PM EDTRiver Flood WarningIWXDefiance, Henry6 days
Apr 25, 9:54 PM EDTRiver Flood WarningIWXWilliams48 hr
Apr 25, 9:54 PM EDTRiver Flood WarningIWXAllen, Paulding, Putnam62 hr
Apr 25, 10:04 PM EDTRiver Flood WatchIWXPutnam20 hr
Apr 26, 5:48 PM EDTRiver Flood WarningIWXPutnam52 hr

Nearby

Flash Flood Watches in Indiana, 2011Flash Flood Watches in Ohio, 2011Flash Flood Watches in Michigan, 2011Every flash flood watch in 2011

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.