Alert archive / Indiana / Flash Flood Warnings in 2008

Flash Flood Warning 13, NWS Northern Indiana

May 31, 2008Allen County, Indiana

NWS Northern Indiana issued this flash flood warning at May 31, 2008, 2:01 AM EDT for Allen County, Indiana. It was in force for 6 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 31, 2008, 2:01 AM EDT (06:01 UTC)
Expired
May 31, 2008, 8:00 AM EDT
In force
6 hr
Issued by
NWS Northern Indiana
Area
Storm-based polygon
Flood severity
None

County Allen County, IN

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 6.0 hours before the alert went out and 219 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, Cncnati-Daytn, OH at 00:00Z on 2008-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 279 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, Cncnati-Daytn, OH at 00:00Z on 2008-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
279 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1362 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 310605
FFWIWX
INC003-311200-
/O.NEW.KIWX.FF.W.0013.080531T0601Z-080531T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
201 AM EDT SAT MAY 31 2008

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ALLEN COUNTY IN NORTHEAST INDIANA

* UNTIL 800 AM EDT

* AT 200 AM EDT...HEAVY RAIN HAD MOVED OUT OF THE AREA. HOWEVER 
  FLOODING FROM RUN-OFF OF THE HEAVY RAIN EARLIER TONIGHT HAS CAUSED 
  SPY RUN TO GO ABOVE FLOOD STAGE. AT 200 AM SPY RUN WAS AT 11.4 
  FEET AND RISING. SPY RUN IS EXPECTED TO CREST AROUND 12 FEET 
  CAUSING FLOODING IN FRANKE PARK AND THE EASTBROOK AND WESTBROOK 
  NEIGHBORHOODS. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW 
  HAVEN...HUNTERTOWN... AND FORT WAYNE

LAT...LON 4124 8529 4123 8482 4097 8484 4099 8529
TIME...MOT...LOC 0601Z 180DEG 0KT 4106 8493

$$
1 follow-up statement
000 
WGUS73 KIWX 310909
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
457 AM EDT SAT MAY 31 2008

INC003-311200-
/O.CON.KIWX.FF.W.0013.000000T0000Z-080531T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ALLEN IN-
457 AM EDT SAT MAY 31 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 AM EDT FOR
CENTRAL ALLEN COUNTY IN NORTHEAST INDIANA...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW
HAVEN AND FORT WAYNE.

FLOODING FROM THE OVERNIGHT DELUGE CONTINUES ALONG SPY RUN CREEK.  
AT 400 AM THE STAGE OF THE CREEK WAS 12.45 FEET AND RISING. 
FLOOD STAGE IS 11 FEET. THE CREEK IS NEAR CREST. CITY OFFICIALS 
REPORT SOME FLOODED STREETS NEAR SPY RUN AND FLOODING IN FRANKE PARK.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT DRIVE THROUGH FLOODED ROADWAYS. 

IF YOU HAVE FLOODING TO REPORT...YOU CAN CALL YOUR LOCAL LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4099 8524 4117 8524 4118 8495 4098 8495
      4098 8506
TIME...MOT...LOC 0857Z 180DEG 0KT 4106 8493

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 8:20 PM EDTFlash Flood WarningIWXWhite5 hr
May 30, 9:43 PM EDTTornado WarningIWXBlackford, Grant37 min
May 30, 11:19 PM EDTAreal Flood AdvisoryIWXAllen, Huntington, Whitley3 hr
May 31, 7:20 AM EDTRiver Flood WarningIWXCass, Miami, Wabash22 hr

Nearby

Flash Flood Warnings in Indiana, 2008Every flash flood warning in 2008

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.