Alert archive / Indiana / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 218, NWS Wilmington, OH

July 20, 2008Ripley County, Indiana

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 20, 2008, 3:25 PM EDT for Ripley County, Indiana. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 20, 2008, 3:25 PM EDT (19:25 UTC)
Expired: Jul 20, 2008, 4:15 PM EDT
In force: 50 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon

County Ripley County, IN

The radar

The Indianapolis radar (KIND), 110 km from the middle of the area, began a volume at 19:28 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.

Issued	Product	Office	Lasted
Jul 20, 3:10 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.4 hours before the alert went out and 131 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: 525 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 1168 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.3

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Wilmington, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 20, 1:50 PM EDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jul 20, 1:50 PM EDT, 1 hour 35 minutes before

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Hazardous weather outlook, Jul 20, 3:23 PM EDT, 2 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE WILMINGTON OH
323 PM EDT SUN JUL 20 2008

INZ050-058-059-066-073>075-080-KYZ089-090-094-211930-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-OWEN-
323 PM EDT SUN JUL 20 2008

...SEVERE THUNDERSTORM WATCH 710 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA AND NORTHERN KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

KYZ091>093-095>100-OHZ026-034-035-042>046-051>056-060>065-070>074-
077>082-088-211930-
BOONE-KENTON-CAMPBELL-GRANT-PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-
HARDIN-MERCER-AUGLAIZE-DARKE-SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-
CHAMPAIGN-CLARK-MADISON-FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-
FAYETTE OH-PICKAWAY-FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-
HAMILTON-CLERMONT-BROWN-HIGHLAND-ADAMS-PIKE-SCIOTO-
323 PM EDT SUN JUL 20 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST KENTUCKY...NORTHERN
KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL
OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 5:19 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Highland	41 min
Jul 20, 5:24 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont	51 min
Jul 20, 5:55 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Highland, Pike	50 min
Jul 20, 6:19 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown	56 min
Jul 20, 6:23 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	52 min
Jul 20, 7:00 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	45 min
Jul 20, 7:43 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont	62 min
Jul 20, 5:35 PM EDT	Severe Thunderstorm Warning	ILN	Bracken, Mason, Pendleton, Robertson	40 min
Jul 20, 7:13 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Campbell, Carroll, Gallatin, Grant, Kenton and 2 more	47 min
Jul 20, 7:28 PM EDT	Tornado Warning	ILN	Boone, Campbell, Kenton	32 min
Jul 20, 5:48 PM EDT	Severe Thunderstorm Warning	ILN	Franklin, Ripley	42 min
Jul 20, 6:14 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Franklin, Ripley	46 min
Jul 20, 6:28 PM EDT	Areal Flood Advisory	ILN	Franklin	2 hr
Jul 20, 6:40 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Ohio, Ripley, Switzerland	50 min
Jul 20, 7:00 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn	30 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2008 Every severe thunderstorm 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; radar from the NEXRAD Level II archive.