Alert archive / Indiana / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 331, NWS Wilmington, OH

August 9, 2011Ripley County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 9, 2011, 9:02 PM EDT for Ripley County, Indiana. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 9, 2011, 9:02 PM EDT (01:02 UTC)
Expired
Aug 9, 2011, 9:45 PM EDT
In force
43 min
Issued by
NWS Wilmington, OH
Area
Storm-based polygon

County Ripley County, IN

The radar

The Indianapolis radar (KIND), 115 km from the middle of the area, began a volume at 01:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 9, 3:28 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.0 hours before the alert went out and 138 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 2011-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 494 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 2011-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939587897Sfc1 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
494 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1492 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

127 
WUUS51 KILN 100102
SVRILN
INC137-100145-
/O.NEW.KILN.SV.W.0331.110810T0102Z-110810T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
902 PM EDT TUE AUG 9 2011

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN RIPLEY COUNTY IN SOUTHEAST INDIANA...

* UNTIL 945 PM EDT.

* AT 857 PM EDT...RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF
  PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 7 MILES
  NORTHWEST OF HOLTON...MOVING SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHERN
  RIPLEY COUNTY...INCLUDING OTTER VILLAGE...HOLTON...NEW MARION...
  REXVILLE...BENHAM...OLEAN...CROSS PLAINS AND FRIENDSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
TUESDAY EVENING FOR SOUTHEASTERN INDIANA AND NORTHERN KENTUCKY AND
SOUTHWESTERN OHIO.

&&

LAT...LON 3919 8544 3915 8538 3896 8513 3894 8514
      3892 8517 3893 8520 3891 8521 3891 8544
      3891 8545
TIME...MOT...LOC 0102Z 313DEG 28KT 3911 8545

$$
2 follow-up statements
867 
WWUS51 KILN 100121
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
921 PM EDT TUE AUG 9 2011

INC137-100145-
/O.CON.KILN.SV.W.0331.000000T0000Z-110810T0145Z/
RIPLEY IN-
921 PM EDT TUE AUG 9 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR SOUTHERN RIPLEY COUNTY...

AT 918 PM EDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR
NEW MARION...MOVING SOUTHEAST AT 30 MPH.

THIS STORM WILL AFFECT MAINLY RURAL AREAS OF SOUTHERN RIPLEY
COUNTY...INCLUDING NEW MARION...REXVILLE...BENHAM...OLEAN...CROSS
PLAINS AND FRIENDSHIP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3911 8544 3910 8533 3896 8513 3894 8514
      3893 8516 3893 8520 3891 8521 3891 8545
TIME...MOT...LOC 0121Z 313DEG 28KT 3902 8535

$$
248 
WWUS51 KILN 100137
SVSILN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
937 PM EDT TUE AUG 9 2011

INC137-100147-
/O.EXP.KILN.SV.W.0331.000000T0000Z-110810T0145Z/
RIPLEY IN-
937 PM EDT TUE AUG 9 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RIPLEY COUNTY WILL
EXPIRE AT 945 PM EDT...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

PLEASE REPORT PREVIOUS WIND DAMAGE OR HAIL TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...877-633-6772.

LAT...LON 3911 8544 3910 8533 3896 8513 3894 8514
      3893 8516 3893 8520 3891 8521 3891 8545
TIME...MOT...LOC 0137Z 313DEG 28KT 3893 8524

$$

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 8:16 PM EDTSpecial Weather StatementILNFranklin44 min
Aug 9, 8:46 PM EDTSpecial Weather StatementILNRipley29 min
Aug 9, 9:58 PM EDTSpecial Weather StatementILNRipley32 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2011Every severe thunderstorm 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.