Alert archive / Indiana / Areal Flood Warnings in 2011

Areal Flood Warning 29, NWS Indianapolis, IN

April 28, 201111 counties in Indiana

NWS Indianapolis, IN issued this areal flood warning at Apr 28, 2011, 6:36 AM EDT for 11 counties in Indiana. It was in force for 29 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: Apr 28, 2011, 6:36 AM EDT (10:36 UTC)
Expired: Apr 29, 2011, 11:30 AM EDT
In force: 29 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: None

Counties Boone County, IN, Carroll County, IN, Clinton County, IN, Fountain County, IN, Hamilton County, IN, Howard County, IN, Montgomery County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 68 km from the middle of the area, began a volume at 10:37 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 00:00Z, 10.6 hours before the alert went out and 262 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: 775 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 96 m²/s²
0-3 km storm-relative helicity: 521 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Indianapolis, IN wrote its last area forecast discussion before this areal flood warning went out at Apr 28, 5:55 AM EDT, 41 minutes earlier.

Area forecast discussion, Apr 28, 5:55 AM EDT, 41 minutes before

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Hazardous weather outlook, Apr 28, 5:40 AM EDT, 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
540 AM EDT THU APR 28 2011

INZ021-028>031-035>049-051>057-060>065-067>072-290945-
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION-PARKE-
PUTNAM-HENDRICKS-MARION-HANCOCK-HENRY-VIGO-CLAY-OWEN-MORGAN-
JOHNSON-SHELBY-RUSH-SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-
DECATUR-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
540 AM EDT THU APR 28 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL INDIANA.

.DAY ONE...TODAY AND TONIGHT.

SHOWERS AND ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EARLY EVENING. NEARLY ANY SHOWER OR STORM WILL BE CAPABLE OF
PRODUCING SMALL HAIL AND WIND GUSTS TO 50 MPH. A FEW STORMS MAY
APPROACH SEVERE LIMITS.

IN ADDITION...BREEZY CONDITIONS ARE EXPECTED TODAY AND THIS
EVENING WITH WIND GUSTS OF 40 MPH EXPECTED. WITH SOILS SATURATED
DUE TO RECENT RAINS...WINDS OF THIS MAGNITUDE MAY BE ABLE TO BRING
DOWN TREES. UNSECURED OUTDOOR OBJECTS WILL LIKELY BE BLOWN ABOUT.

FINALLY...EXTENSIVE FLOODING WILL CONTINUE ALONG AREA RIVERS.
MAJOR FLOODING WILL CONTINUE ALONG PORTIONS OF AREA RIVERS IN
SOUTHERN AND SOUTHWEST INDIANA...AND PERHAPS ALONG THE TIPPECANOE
RIVER IN CARROLL COUNTY.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

EXTENSIVE FLOODING WILL CONTINUE ALONG AREA RIVERS FOR AT LEAST
THE NEXT SEVERAL DAYS...WITH MAJOR FLOODING ALONG PORTIONS OF
RIVERS IN SOUTHERN AND SOUTHWEST INDIANA...AND PERHAPS ALONG THE
TIPPECANOE RIVER IN CARROLL COUNTY.

THUNDERSTORMS WITH HEAVY RAIN WILL BE POSSIBLE AGAIN FROM SATURDAY
NIGHT THROUGH SUNDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO REPORT DAMAGE FROM STRONG WINDS
TODAY...ALONG WITH ANY HAIL OR THUNDERSTORM WINDS.

&&

MORE INFORMATION...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND
CLIMATE INFORMATION CAN BE FOUND...AT HTTP://WEATHER.GOV/IND (ALL
LOWERCASE)

NIELD

In the hours before

Special weather statement, Apr 28, 4:46 AM EDT, 1 hour 50 minutes before

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Special weather statement, Apr 28, 5:39 AM EDT, 57 minutes before

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The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 9:03 PM EDT	Areal Flood Warning	IND	Clay, Fountain, Montgomery, Parke, Putnam, Sullivan and 4 more	7 hr
Apr 27, 9:59 PM EDT	Areal Flood Warning	IND	Boone, Hendricks	3 hr
Apr 27, 10:55 PM EDT	Special Weather Statement	IND	Randolph	35 min
Apr 27, 10:58 PM EDT	Tornado Warning	IND	Delaware, Randolph	27 min
Apr 27, 11:19 PM EDT	Tornado Warning	IND	Randolph	15 min
Apr 28, 12:40 AM EDT	Wind Advisory	IND	Bartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more	4 hr
Apr 28, 1:08 AM EDT	River Flood Warning	IND	Carroll, Tippecanoe, White	41 hr
Apr 28, 5:27 AM EDT	Areal Flood Warning	IND	Boone, Montgomery	30 hr
Apr 28, 6:47 AM EDT	Areal Flood Warning	IND	Clay, Greene, Hendricks, Marion, Montgomery, Morgan and 6 more	29 hr
Apr 28, 4:28 PM EDT	Special Weather Statement	IND	Johnson	47 min
Apr 28, 4:30 PM EDT	Severe Thunderstorm Warning	IND	Brown, Monroe	30 min
Apr 28, 4:37 PM EDT	Special Weather Statement	IND	Knox	38 min
Apr 28, 4:57 PM EDT	Special Weather Statement	IND	Bartholomew	48 min
Apr 28, 5:12 PM EDT	Special Weather Statement	IND	Jackson	48 min
Apr 28, 5:14 PM EDT	Special Weather Statement	IND	Martin	46 min
Apr 28, 5:29 PM EDT	Severe Thunderstorm Warning	IND	Jackson, Jennings	20 min
Apr 28, 5:37 PM EDT	Special Weather Statement	IND	Monroe	38 min
Apr 28, 5:52 PM EDT	Special Weather Statement	IND	Jennings	23 min
Apr 28, 6:32 PM EDT	River Flood Warning	IND	Hamilton, Marion	23 hr

Nearby

Areal Flood Warnings in Indiana, 2011 Every areal flood warning 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.