Alert archive / Ohio / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 161, NWS Wilmington, OH

July 6, 2003Mercer County, Ohio

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 6, 2003, 7:31 PM EDT for Mercer 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: Jul 6, 2003, 7:31 PM EDT (23:31 UTC)
Expired: Jul 6, 2003, 8:15 PM EDT
In force: 44 min
Issued by: NWS Wilmington, OH
Area: Counties, with a storm outline in the text

County Mercer County, OH

The radar

The Northern Indiana radar (KIWX), 127 km from the middle of the area, began a volume at 23:33 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
Jul 6, 6:45 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.5 hours before the alert went out and 142 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: 379 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

525 
WUUS51 KILN 062331
SVRILN
OHC107-070015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON OH
731 PM EDT SUN JUL 6 2003

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

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

* UNTIL 815 PM EDT...

* AT 731 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTHWEST OF COLDWATER...MOVING
  SOUTHEAST AT 20 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  CELINA...
  COLDWATER...
  ST. HENRY...

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 4054 8481 4063 8475 4075 8452 4035 8442
          4035 8458 4045 8482

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 6, 3:25 PM EDT, 4 hours 6 minutes earlier.

Area forecast discussion, Jul 6, 3:25 PM EDT, 4 hours 6 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
325 PM EDT SUN JUL 6 2003

JUICY AIRMASS IN PLACE ACROSS AREA ONCE AGAIN THIS AFTERNOON. TEMPS
ACROSS OUR FA INTO THE MID TO UPPER 80S WITH DEWPOINTS INTO THE
LOW/MID 70S. JUST TO OUR W ACROSS INDIANA...TEMPS INTO THE LOW 90S
WITH MID 70 DEWPOINTS. THIS RESULTING IN SBCAPES IN THE 2000-3000
RANGE ACROSS MUCH OF OUR AREA WITH 3000-4000 JUST TO OUR WEST.
NUMEROUS BOUNDARIES FLOATING AROUND AREA HELPING TO KICK OFF
CONVECTION QUITE A BIT EARLIER TODAY THAN PAST FEW DAYS.  THUS
EXPECT COVERAGE TO CONTINUE TO INCREASE ACROSS OUR AREA THROUGH LATE
AFTERNOON/EARLY EVENING. FOCUS THEN SHIFTS TO SHORT WAVE CURRENTLY
PUSHING INTO NORTHERN IL. THIS PROGGED TO PUSH ACROSS LOWER GREAT
LAKES THROUGH THE OVERNIGHT WITH 8H/9H JET FORECAST TO INCREASE
ACROSS NORTHERN IND/NRN OH. LOOKS LIKE BEST FOCUS WILL REMAIN JUST
TO OUR NORTH BUT POSSIBILITY EXISTS FOR SOME OF THIS TO SNEAK INTO
NORTHERN PORTIONS OF FA. WILL GENERALLY GO WITH 40 TO 50 POPS ACROSS
ENTIRE FA. WITH HIGH PWATS...WILL MENTION POSSIBILITY OF LOCALLY
HEAVY RAIN. SEVERE WEATHER PARAMETERS SOMEWHAT MARGINAL WITH WETBULB
ZERO AROUND 11K AND MAX DELTA THETAE IN THE 15 TO 20 DEGREE RANGE.
GIVEN HIGH INSTABILITY THOUGH...SOME ISOLATED LARGE HAIL/DAMAGING
WINDS STILL POSSIBLE. WILL PRETTY MUCH HANG ON TO CHANCE PCPN
THROUGH MIDDLE PART OF WEEK AS SERIES OF S/W CONTINUE TO PUSH ACROSS
AREA.

.ILN...NONE.

Hazardous weather outlook, Jul 6, 4:53 AM EDT, 14 hours 38 minutes before

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-061045-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
453 AM EDT SUN JUL 6 2003

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

.DAY ONE...TODAY
STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND
TONIGHT.  THE MAIN THREAT BEING DAMAGING WINDS AND LARGE HAIL.
THESE STORMS COULD ALSO CREATE FLOODING PROBLEMS ESPECIALLY THOSE
THAT OCCUR NORTH OF I-70.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
THREAT OF STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE MOST
AFTERNOONS AND EVENINGS AS A NEARLY STATIONARY FRONT OSCILLATES OVER
THE OHIO VALLEY.  LOCALIZED FLOODING THREAT WILL ALSO EXIST.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.

 TIPTON

In the hours before

Local storm report, Jul 6, 5:46 PM EDT, 1 hour 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
546 PM EDT SUN JUL 6 2003

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

0505 PM    1 W CHRISTIANSBURG        OH   WIND DAMAGE
07/06/03   MIAMI                          TREES DOWN REPORTED BY LAW
                                          ENFORCEMENT.

0540 PM    PIQUA                     OH   FLOOD
07/06/03   MIAMI                          HIGH WATER ON ROADS

RLG

Local storm report, Jul 6, 6:05 PM EDT, 1 hour 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
605 PM EDT SUN JUL 6 2003

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

0520 PM    SPRINGFIELD               OH   WIND DAMAGE
07/06/03   CLARK                          TREES DOWN REPORTED BY
                                          TRAINED SPOTTER.

RLG

Local storm report, Jul 6, 6:12 PM EDT, 1 hour 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
612 PM EDT SUN JUL 6 2003

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

0515 PM    1 W SPRINGFIELD           OH   WIND DAMAGE
07/06/03   CLARK                          LARGE LIMBS DOWN REPORTED
                                          BY TRAINED SPOTTER.

RLG

Local storm report, Jul 6, 6:36 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
636 PM EDT SUN JUL 6 2003

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

0634 PM    CELINA                    OH   FLASH FLOOD
07/06/03   MERCER                         HIGH WATER ON AREA ROADS
                                          ONE FOOT DEEP REPORTED BY
                                          LAW ENFORCEMENT.

AR

Local storm report, Jul 6, 6:59 PM EDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
659 PM EDT SUN JUL 6 2003

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

0610 PM    MOUNT HEALTHY             OH   WIND DAMAGE
07/06/03   HAMILTON                       MANY TREES DOWN REPORTED
                                          BY LAW ENFORCEMENT.

Local storm report, Jul 6, 7:22 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, OH
722 PM EDT SUN JUL 6 2003

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

0300 PM    1 N DRY RIDGE             KY   WIND DAMAGE
07/06/03   GRANT                          POWER LINES DOWN

RLG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:30 PM EDT	Severe Thunderstorm Warning	ILN	Preble	45 min
Jul 5, 8:53 PM EDT	Severe Thunderstorm Warning	ILN	Butler	52 min
Jul 5, 9:00 PM EDT	Severe Thunderstorm Warning	ILN	Montgomery	45 min
Jul 5, 9:15 PM EDT	Severe Thunderstorm Warning	ILN	Miami	45 min
Jul 5, 9:27 PM EDT	Tornado Warning	ILN	Greene, Montgomery	33 min
Jul 5, 9:49 PM EDT	Tornado Warning	ILN	Champaign	41 min
Jul 5, 9:59 PM EDT	Severe Thunderstorm Warning	ILN	Greene	31 min
Jul 5, 11:09 PM EDT	Severe Thunderstorm Warning	ILN	Delaware	51 min
Jul 5, 11:20 PM EDT	Severe Thunderstorm Warning	ILN	Franklin	25 min
Jul 5, 11:30 PM EDT	Severe Thunderstorm Warning	ILN	Licking	45 min
Jul 6, 3:31 PM EDT	Severe Thunderstorm Warning	ILN	Scioto	29 min
Jul 6, 3:38 PM EDT	Severe Thunderstorm Warning	ILN	Shelby	37 min
Jul 6, 4:25 PM EDT	Severe Thunderstorm Warning	ILN	Miami	50 min
Jul 6, 4:40 PM EDT	Severe Thunderstorm Warning	ILN	Champaign	50 min
Jul 6, 4:47 PM EDT	Severe Thunderstorm Warning	ILN	Clark	58 min
Jul 6, 4:59 PM EDT	Severe Thunderstorm Warning	ILN	Mercer	61 min
Jul 6, 5:59 PM EDT	Severe Thunderstorm Warning	ILN	Hamilton	46 min
Jul 6, 6:04 PM EDT	Flash Flood Warning	ILN	Mercer	116 min
Jul 6, 7:55 PM EDT	Flash Flood Warning	ILN	Mercer	2 hr

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.