Alert archive / Ohio / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 320, NWS Wilmington, OH

August 27, 2003Clinton County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Aug 27, 2003, 12:16 PM EDT for Clinton County, Ohio. It was in force for 44 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 27, 2003, 12:16 PM EDT (16:16 UTC)
Expired: Aug 27, 2003, 1:00 PM EDT
In force: 44 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

County Clinton County, OH

The radar

The Cincinnati radar (KILN), 3 km from the middle of the area, began a volume at 16:20 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.3 hours before the alert went out and 5 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: 2457 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KILN 271616
SVRILN
OHC027-271700-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1216 PM EDT WED AUG 27 2003

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLINTON COUNTY IN OHIO...

* UNTIL 100 PM EDT...

* AT 1216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTH OF WILMINGTON...MOVING SOUTHEAST
  AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  BLANCHESTER...
  WILMINGTON...

THIS IS A DANGEROUS STORM...CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS. IF YOU ARE IN THE STORMS PATH...TAKE COVER IN A
STURDY STRUCTURE UNTIL THE STORM PASSES.

LAT...LON 3956 8393 3927 8399 3925 8382 3946 8360

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 Aug 27, 11:20 AM EDT, 56 minutes earlier.

Area forecast discussion, Aug 27, 11:20 AM EDT, 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
1120 AM EDT WED AUG 27 2003

YET ANOTHER THUNDERSTORM COMPLEX HAS ENTERED OUR WESTERN COUNTIES.
RUC INDICATES CAPES ABOVE 4000 J/KG THIS AFTERNOON WITH A FRONT
MOVING DOWN FROM THE GREAT LAKES...SO THIS COULD BE ANOTHER DAY OF
PROTRACTED TSRA...AND MORE WARNINGS ARE LIKELY. ALREADY UPDATED
ZONES TO ADD SEVERE WORDING. REST OF FORECAST LOOKS GOOD WITH TEMPS
RANGING FROM MID 80S NORTH TO AROUND 90 SOUTH.

.ILN...NONE.

CONIGLIO

Hazardous weather outlook, Aug 27, 5:00 AM EDT, 7 hours 16 minutes before

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-271100-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
500 AM EDT WED AUG 27 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN INDIANA...NORTHERN
KENTUCKY AND THE SOUTHWEST QUARTER OF OHIO.

.DAY ONE...TODAY

SCATTERED THUNDERSTORMS WILL BE POSSIBLE TODAY...ESPECIALLY THIS
AFTERNOON AND INTO THIS EVENING. A FEW OF THE STORMS MAY APPROACH
SEVERE LIMITS WITH DAMAGING WINDS BEING THE PRIMARY SEVERE WEATHER
THREAT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Aug 27, 8:05 AM EDT, 4 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
805 AM EDT WED AUG 27 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 AM    POWELL                    OH   WIND DAMAGE
08/27/03   DELAWARE                       TREES DOWN AND POWER
                                          OUTAGES

0645 AM    PLAIN CITY                OH   WIND DAMAGE
08/27/03   MADISON                        2 TREES DOWN

RLG

Special weather statement, Aug 27, 8:05 AM EDT, 4 hours 11 minutes before

OHZ026-035-044>046-056-271221-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
805 AM EDT WED AUG 27 2003

...SEVERE THUNDERSTORM WATCH NUMBER 898 HAS BEEN ALLOWED TO EXPIRE...

THUNDERSTORMS HAVE WEAKENED ACROSS THE REGION.  THEREFORE...THE
SEVERE THUNDERSTORM WATCH HAS BEEN ALLOWED TO EXPIRE.

Local storm report, Aug 27, 8:27 AM EDT, 3 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
827 AM EDT WED AUG 27 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0820 AM    DUBLIN                    OH   FLOOD
08/27/03   FRANKLIN                       WATER COVERING ROADS

RLG

Local storm report, Aug 27, 8:52 AM EDT, 3 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
852 AM EDT WED AUG 27 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0730 PM    COUNTYWIDE                OH   WIND DAMAGE
08/26/03   HARDIN                         TREES DOWN

RLG

Local storm report, Aug 27, 9:32 AM EDT, 2 hours 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
932 AM EDT WED AUG 27 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0555 AM    5 W SPRINGFIELD           OH   WIND DAMAGE
08/27/03   CLARK                          SEVERAL TREES DOWN IN THE
                                          WESTERN PART OF THE
                                          COUNTY.REPORTED BY LAW
                                          ENFORCEMENT.

0745 AM    DUBLIN                    OH   FLOOD
08/27/03   FRANKLIN                       WATER COVERING NUMEROUS
                                          ROADS. REPORTED BY LAW
                                          ENFORCEMENT.

0820 AM    DUBLIN                    OH   FLOOD
08/27/03   FRANKLIN                       WATER CPVERING NUMEROUS
                                          ROADS. REPORTED BY LAW
                                          ENFORCEMENT.

GAT

Special weather statement, Aug 27, 9:57 AM EDT, 2 hours 19 minutes before

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-272000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
957 AM EDT WED AUG 27 2003

...SEVERE THUNDERSTORMS WILL BE POSSIBLE AGAIN TODAY INTO THIS
EVENING...

A MOIST UNSTABLE AIRMASS REMAINS IN PLACE OVER THE OHIO VALLEY.  A
COLD FRONT DROPPING DOWN FROM THE GREAT LAKES WILL MOVE INTO THE
REGION TODAY.  THUNDERSTORMS ARE DEVELOPING AHEAD OF THE FRONT.  SOME
OF THE THUNDERSTORMS ARE EXPECTED TO BECOME SEVERE...WITH DAMAGING
WINDS AS THE MAIN THREAT.  LARGE HAIL AND LOCALIZED FLOODING WILL
ALSO BE POSSIBLE.

SPOTTER ACTIVATION MAY BE NEEDED TODAY THROUGH THIS EVENING.
EMERGENCY MANAGERS SHOULD HAVE ACTION PLANS IN PLACE.  LISTEN TO
NOAA WEATHER RADIO FOR UPDATES...AND ANY POSSIBLE WATCHES AND
WARNINGS.

CONIGLIO

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 8:05 PM EDT	Severe Thunderstorm Warning	ILN	Licking	55 min
Aug 27, 5:41 AM EDT	Severe Thunderstorm Warning	ILN	Clark	49 min
Aug 27, 6:04 AM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin	41 min
Aug 27, 6:25 AM EDT	Severe Thunderstorm Warning	ILN	Madison	35 min
Aug 27, 11:27 AM EDT	Severe Thunderstorm Warning	ILN	Clark	63 min
Aug 27, 11:34 AM EDT	Severe Thunderstorm Warning	ILN	Montgomery	56 min
Aug 27, 11:59 AM EDT	Severe Thunderstorm Warning	ILN	Miami	31 min
Aug 27, 12:04 PM EDT	Severe Thunderstorm Warning	ILN	Greene	56 min
Aug 27, 12:05 PM EDT	Severe Thunderstorm Warning	ILN	Warren	40 min
Aug 27, 12:22 PM EDT	Severe Thunderstorm Warning	ILN	Fayette	38 min
Aug 27, 12:50 PM EDT	Severe Thunderstorm Warning	ILN	Pickaway, Ross	40 min
Aug 27, 1:22 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield	53 min
Aug 27, 2:16 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	44 min
Aug 27, 7:43 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	32 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2003 Every severe thunderstorm warning in 2003

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.