Alert archive / Ohio / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 12, NWS Wilmington, OH

April 5, 2003Clinton County, Fayette County, Madison County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Apr 5, 2003, 12:07 AM EST for Clinton County, Fayette County, Madison County, Ohio. It was in force for 38 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: Apr 5, 2003, 12:07 AM EST (05:07 UTC)
Expired: Apr 5, 2003, 12:45 AM EST
In force: 38 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

Counties Clinton County, OH, Fayette County, OH, Madison County, OH

The radar

The Cincinnati radar (KILN), 24 km from the middle of the area, began a volume at 05:07 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 4, 10:20 PM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 5.1 hours before the alert went out and 22 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: 628 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1237 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

600 
WUUS51 KILN 050507
SVRILN
OHC027-047-097-050545-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
1206 AM EST SAT APR 5 2003

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

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

* UNTIL 1245 AM EST...

* AT 1206 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES WEST OF
  CHOCTAW LAKE TO 8 MILES NORTH OF WILMINGTON....OR ALONG A LINE
  EXTENDING FROM 8 MILES EAST OF SPRINGFIELD TO 8 MILES NORTH OF
  WILMINGTON...MOVING EAST AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  BLOOMINGBURG...
  CHOCTAW LAKE...
  JEFFERSON...
  JEFFERSONVILLE...
  LONDON...
  MOUNT STERLING...
  NEW HOLLAND...
  SABINA...
  WASHINGTON COURT HOUSE...
  WILMINGTON...

DAMAGING WINDS ARE LIKELY WITH THIS STORM. IF YOU ARE IN THE STORMS
PATH...TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES.

LAT...LON 3936 8397 3937 8395 3956 8387 3955 8369
          3978 8358 4003 8350 4003 8328 3979 8326
          3946 8331 3935 8396

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 Apr 4, 8:15 PM EST, 3 hours 52 minutes earlier.

Area forecast discussion, Apr 4, 8:15 PM EST, 3 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
815 PM EST FRI APR 4 2003

WITH UPDATED FORECAST THAT WAS JUST SENT ALSO ADJUSTED TIMING OF
PRECIPITATION IN SOME ZONES. EARLIER SCATTERED ACTIVITY IN THE SOUTH
DIMINISHED WITH LOSS OF HEATING. SO IT LOOKS LIKE IT WILL TAKE THE
APPROACH OF THE COLD FRONT TO GET PRECIPITATION INTO THAT PART OF
THE AREA. HOWEVER ACTIVITY CONTINUES OFF AND ON ACROSS NORTHERN
ZONES WHICH ARE CLOSER TO THE WARM FRONT.

.ILN...NONE.

Hazardous weather outlook, Apr 4, 5:37 AM EST, 18 hours 30 minutes before

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ034-035-042>046-051>056-
060>065-070>074-077>082-088-041030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
537 AM EST FRI APR 4 2003

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

.DAY ONE...TODAY
THERE IS A POTENTIAL FOR SEVERE THUNDERSTORMS LATER THIS AFTERNOON
AND INTO THIS EVENING...ESPECIALLY FOR SOUTHEAST INDIANA...NORTHERN
KENTUCKY AND SOUTHERN OHIO. HOWEVER...A POSSIBILITY FOR SEVERE
THUNDERSTORMS DOES EXIST IN PORTIONS OF THE MIAMI AND WHITEWATER
VALLEY REGIONS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON OR THIS
EVENING.

In the hours before

Local storm report, Apr 4, 9:37 PM EST, 2 hours 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
937 PM EST FRI APR 4 2003

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

0525 PM    1 N RATHBONE              OH   .75 INCH HAIL
04/04/03   DELAWARE

0914 PM    3 NW ROCKFORD             OH   .75 INCH HAIL
04/04/03   MERCER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 10:36 PM EST	Severe Thunderstorm Warning	ILN	Darke, Preble	24 min
Apr 4, 11:01 PM EST	Severe Thunderstorm Warning	ILN	Butler, Darke, Miami, Montgomery, Preble	29 min
Apr 4, 11:28 PM EST	Severe Thunderstorm Warning	ILN	Miami, Montgomery	47 min
Apr 4, 11:35 PM EST	Severe Thunderstorm Warning	ILN	Delaware, Union	40 min
Apr 4, 11:36 PM EST	Severe Thunderstorm Warning	ILN	Butler, Hamilton	24 min
Apr 4, 11:40 PM EST	Tornado Warning	ILN	Fayette, Madison, Montgomery	35 min
Apr 4, 11:43 PM EST	Tornado Warning	ILN	Montgomery	32 min
Apr 4, 11:45 PM EST	Severe Thunderstorm Warning	ILN	Clark, Clinton, Greene, Warren	30 min
Apr 4, 11:57 PM EST	Severe Thunderstorm Warning	ILN	Butler, Hamilton	33 min
Apr 5, 12:27 AM EST	Severe Thunderstorm Warning	ILN	Clermont, Hamilton, Warren	33 min
Apr 5, 12:51 AM EST	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Hocking, Licking, Pickaway, Ross	39 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.