Alert archive / Indiana / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS Northern Indiana

May 20, 20144 counties in Indiana

NWS Northern Indiana issued this flash flood warning at May 20, 2014, 10:13 PM CDT for 4 counties in Indiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 20, 2014, 10:13 PM CDT (03:13 UTC)
Expired
May 21, 2014, 1:15 AM CDT
In force
3 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

Counties LaPorte County, IN, Marshall County, IN, Saint Joseph County, IN, Starke County, IN

The radar

The Northern Indiana radar (KIWX), 84 km from the middle of the area, began a volume at 03:17 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

Lincoln, IL (KILX), launched 00:00Z, 3.2 hours before the alert went out and 227 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 2014-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1813 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2014-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.193958Sfc1 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
1813 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1422 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.8

Open this sounding in Storm Lab

The text

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

143 
WGUS53 KIWX 210313
FFWIWX
INC091-099-141-149-210615-
/O.NEW.KIWX.FF.W.0002.140521T0313Z-140521T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1013 PM CDT TUE MAY 20 2014

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN MARSHALL COUNTY IN NORTH CENTRAL INDIANA...
  THIS INCLUDES THE CITIES OF...PLYMOUTH...BREMEN...
  ST. JOSEPH COUNTY IN NORTH CENTRAL INDIANA...
  THIS INCLUDES THE CITIES OF...GEORGETOWN...SOUTH BEND...
  MISHAWAKA...GULIVOIRE PARK...GRANGER...
  LA PORTE COUNTY IN NORTHWEST INDIANA...
  THIS INCLUDES THE CITIES OF...WESTVILLE...TRAIL CREEK...MICHIGAN
  CITY...LA PORTE...
  NORTHERN STARKE COUNTY IN NORTHWEST INDIANA...

* UNTIL 115 AM CDT/215 AM EDT/

* AT 1008 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM THUNDERSTORMS ALONG A LINE EXTENDING FROM 6
  MILES NORTHWEST OF NORTH LIBERTY TO WESTVILLE TO 18 MILES WEST OF
  WANATAH...OR ALONG A LINE EXTENDING FROM 11 MILES EAST OF LA PORTE
  TO WESTVILLE TO LAKES OF THE FOUR SEASONS...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ROSELAND...KINGSFORD HEIGHTS...LA CROSSE...LAKEVILLE...OSCEOLA...
  WALKERTON...KOONTZ LAKE AND HAMLET

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 4172 8694 4173 8693 4176 8687 4176 8607
      4135 8608 4130 8656 4125 8694

$$
3 follow-up statements
124 
WGUS73 KIWX 210419
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1119 PM CDT TUE MAY 20 2014

INC091-099-141-149-210615-
/O.CON.KIWX.FF.W.0002.000000T0000Z-140521T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARKE IN-ST. JOSEPH IN-LA PORTE IN-MARSHALL IN-
1119 PM CDT TUE MAY 20 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM CDT/215 AM
EDT/ FOR NORTHERN MARSHALL...LA PORTE...ST. JOSEPH AND NORTHERN
STARKE COUNTIES...

AT 1208 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
HEAVY RAIN STILL FALLING ACROSS NORTHERN MARSHALL AND SOUTHERN ST. 
JOSEPH COUNTY. HEAVY RAIN HAS EXITED THE REST OF THE WARNING AREA 
BUT RADAR ESTIMATED OVER 2 INCHES OF RAIN FELL OVER CENTRAL LA PORTE 
COUNTY. RUNOFF FROM THIS EXCESSIVE RAINFALL CAN STILL CAUSE FLASH 
FLOODING TO OCCUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING/500 AM EDT WEDNESDAY MORNING/ FOR NORTHERN INDIANA
AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

&&

LAT...LON 4172 8694 4173 8693 4176 8687 4176 8607
      4135 8608 4130 8656 4125 8694

$$
692 
WGUS73 KIWX 210532
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
132 AM EDT WED MAY 21 2014

INC149-210539-
/O.CAN.KIWX.FF.W.0002.000000T0000Z-140521T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STARKE IN-
1232 AM CDT WED MAY 21 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN STARKE
COUNTY...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING/500 AM EDT WEDNESDAY MORNING/ FOR NORTHERN INDIANA
AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

LAT...LON 4142 8608 4144 8647 4145 8694 4172 8694
      4173 8693 4176 8687 4176 8607

$$

INC091-099-141-210615-
/O.CON.KIWX.FF.W.0002.000000T0000Z-140521T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. JOSEPH IN-LA PORTE IN-MARSHALL IN-
132 AM EDT WED MAY 21 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT/115 AM
CDT/ FOR NORTHERN MARSHALL...LA PORTE AND ST. JOSEPH COUNTIES...

AT 1226 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING HEAVY RAIN OVER NORTHERN LA PORTE 
COUNTY. CENTRAL LA PORTE COUNTY ALSO RECEIVED OVER 2 INCHES OF RAIN 
EARLIER. RUNOFF FROM THESE STORMS COULD STILL PRODUCE AREAS OF FLASH 
FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GEORGETOWN...
BREMEN...LA PORTE...KINGSFORD HEIGHTS...WALKERTON...SOUTH BEND...
ROSELAND...OSCEOLA...NORTH LIBERTY...NEW CARLISLE...MISHAWAKA...
LAKEVILLE...GULIVOIRE PARK AND GRANGER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 AM EDT
WEDNESDAY MORNING/400 AM CDT WEDNESDAY MORNING/ FOR NORTHERN INDIANA
AND SOUTHERN MICHIGAN AND NORTHWESTERN OHIO.

&&

LAT...LON 4142 8608 4144 8647 4145 8694 4172 8694
      4173 8693 4176 8687 4176 8607

$$
405 
WGUS73 KIWX 210610
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
210 AM EDT WED MAY 21 2014

INC091-099-141-210617-
/O.EXP.KIWX.FF.W.0002.000000T0000Z-140521T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ST. JOSEPH IN-LA PORTE IN-MARSHALL IN-
210 AM EDT WED MAY 21 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 215 AM EDT/115 AM CDT/ FOR
NORTHERN MARSHALL...LA PORTE AND ST. JOSEPH COUNTIES...

THE HEAVIEST RAINFALL HAS MOVED OUT OF THE WARNED AREA. A FEW BRIEF 
DOWNPOURS ARE STILL POSSIBLE THROUGH THE EARLY MORNING HOURS BUT THE 
THREAT FOR FLASH FLOODING HAS SUBSIDED.

LAT...LON 4142 8608 4144 8647 4145 8694 4172 8694
      4173 8693 4176 8687 4176 8607

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 7:57 PM CDTSpecial Marine WarningIWX2 hr
May 20, 8:53 PM CDTSpecial Weather StatementIWXLaPorte22 min
May 20, 8:59 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph46 min
May 20, 10:07 PM CDTSevere Thunderstorm WarningIWXLaPorte, Marshall, Saint Joseph53 min
May 20, 11:09 PM CDTSevere Thunderstorm WarningIWXKosciusko, Marshall36 min
May 20, 11:18 PM CDTSpecial Marine WarningIWX87 min
May 20, 11:37 PM CDTSevere Thunderstorm WarningIWXKosciusko, Noble, Whitley38 min
May 21, 12:06 AM CDTSevere Thunderstorm WarningIWXAllen, DeKalb, Noble, Whitley39 min
May 21, 12:50 AM CDTSpecial Weather StatementIWXLaGrange25 min
May 21, 1:29 AM CDTSpecial Marine WarningIWX61 min
May 21, 2:19 AM CDTSpecial Weather StatementIWXElkhart, LaGrange26 min
May 21, 2:22 AM CDTSpecial Weather StatementIWXSaint Joseph38 min
May 21, 2:33 AM CDTSpecial Weather StatementIWXSteuben42 min
May 21, 2:37 AM CDTSpecial Weather StatementIWXSteuben38 min
May 21, 2:50 AM CDTSevere Thunderstorm WarningIWXSteuben40 min
May 21, 5:29 AM CDTSpecial Weather StatementIWXDeKalb, Elkhart, LaGrange, Noble, Steuben61 min
May 21, 6:07 AM CDTSpecial Weather StatementIWXAllen, Whitley23 min
May 21, 6:33 AM CDTSpecial Weather StatementIWXAllen27 min
May 21, 8:51 AM CDTSpecial Weather StatementIWXWabash24 min
May 21, 9:28 AM CDTMarine Dense Fog AdvisoryIWX8 hr
May 21, 9:55 AM CDTSpecial Weather StatementIWXMiami35 min

Nearby

Flash Flood Warnings in Indiana, 2014Every flash flood warning in 2014

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.