Alert archive / Indiana / Flash Flood Warnings in 2007

Flash Flood Warning 2, NWS Northern Indiana

May 1, 2007Allen County, Indiana

NWS Northern Indiana issued this flash flood warning at May 1, 2007, 6:44 PM 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 counties it named.

The facts

Issued
May 1, 2007, 6:44 PM EDT (22:44 UTC)
Expired
May 2, 2007, 12:45 AM EDT
In force
6 hr
Issued by
NWS Northern Indiana
Area
Whole counties

County Allen County, IN

The radar

The Northern Indiana radar (KIWX), 61 km from the middle of the area, began a volume at 22:46 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.7 hours before the alert went out and 214 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 12:00Z on 2007-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 12:00Z on 2007-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
2 J/kg
Mixed-layer CIN
-307 J/kg
Mixed-layer LCL
1988 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KIWX 012244
FFWIWX
INC003-020445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
644 PM EDT TUE MAY 1 2007

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

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

* UNTIL 1245 AM EDT

* AT 641 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE
  WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FORT       
WAYNE...WALLEN...LEO-CEDARVILLE...HARLAN...CUBA...ARI...ARCOLA...WOOD
BURN...HUNTERTOWN...GRABILL AND GEORGETOWN

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 4094 8531 4096 8482 4127 8482 4127 8530

$$

JC
2 follow-up statements
000 
WGUS73 KIWX 020248
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1043 PM EDT TUE MAY 1 2007

INC003-020445-
ALLEN IN-
1043 PM EDT TUE MAY 1 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
ALLEN COUNTY IN NORTHEAST INDIANA...

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
WALLEN...TOWNLEY...TILLMAN...ROLLING HILLS...NINE MILE... 
MAPLES...LEO-CEDARVILLE...HARLAN...CUBA...ARCOLA...NEW 
HAVEN...MONROEVILLE...HUNTERTOWN...GRABILL...GEORGETOWN AND FORT 
WAYNE.

RAINFALL HAS ENDED ACROSS ALLEN COUNTY INDIANA. HOWEVER... RUNOFF 
FROM THE HEAVY RAIN WAS STILL CAUSING RAPID RISES ON CREEKS IN THE 
COUNTY... INCLUDING SPY RUN. SPY RUN IS EXPECTED TO CREST LATE 
TONIGHT NEAR FLOOD STAGE.

EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL EARLIER TONIGHT WILL CAUSE 
FLOODING OF SMALL CREEKS AND STREAMS AS WELL AS OTHER DRAINAGE AREAS 
AND LOW LYING SPOTS.

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

LAT...LON 4094 8531 4096 8482 4127 8482 4127 8530

$$
000 
WGUS73 KIWX 020420
FFSIWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
1217 AM EDT WED MAY 2 2007

INC003-020427-
ALLEN IN-
1217 AM EDT WED MAY 2 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR ALLEN COUNTY IN
NORTHEAST INDIANA...

THE THUNDERSTORMS WHICH PRODUCED THE HEAVY RAINFALL ACROSS MUCH OF 
ALLEN COUNTY HAVE MOVED WELL EAST OF THE AREA. LOCATIONS IN AND 
AROUND SPY RUN CREEK AS WELL AS SURROUNDING AREAS ARE NO LONGER IN 
DANGER FOR FLOODING FROM THIS EVENT. THEREFORE THE FLASH FLOOD 
WARNING HAS BEEN CANCELLED.

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

LAT...LON 4094 8531 4096 8482 4127 8482 4127 8530

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 4:30 PM EDTSevere Thunderstorm WarningIWXElkhart, Saint Joseph47 min
May 1, 4:48 PM EDTTornado WarningIWXSteuben42 min
May 1, 4:56 PM EDTSevere Thunderstorm WarningIWXAllen34 min
May 1, 5:09 PM EDTSevere Thunderstorm WarningIWXKosciusko, Noble, Whitley36 min
May 1, 5:15 PM EDTSevere Thunderstorm WarningIWXLaGrange, Steuben44 min
May 1, 5:28 PM EDTSevere Thunderstorm WarningIWXAllen62 min
May 1, 5:44 PM EDTSevere Thunderstorm WarningIWXKosciusko, Whitley61 min
May 1, 6:24 PM EDTSevere Thunderstorm WarningIWXPulaski22 min
May 1, 6:27 PM EDTSevere Thunderstorm WarningIWXAllen63 min

Nearby

Flash Flood Warnings in Indiana, 2007Every flash flood warning in 2007

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.