Alert archive / Ohio / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, OH

May 1, 2012Butler County, Ohio

NWS Wilmington, OH issued this special weather statement at May 1, 2012, 10:01 PM EDT for Butler County, Ohio. It was in force for 29 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: May 1, 2012, 10:01 PM EDT (02:01 UTC)
Expired: May 1, 2012, 10:30 PM EDT
In force: 29 min
Issued by: NWS Wilmington, OH

County Butler County, OH

The radar

The Cincinnati radar (KILN), 76 km from the middle of the area, began a volume at 02:01 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.0 hours before the alert went out and 346 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: 579 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1059 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 1, 7:55 PM EDT, 2 hours 6 minutes earlier.

Area forecast discussion, May 1, 7:55 PM EDT, 2 hours 6 minutes before

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Hazardous weather outlook, May 1, 8:08 PM EDT, 1 hour 53 minutes before

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In the hours before

Local storm report, May 1, 8:09 PM EDT, 1 hour 52 minutes before

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Local storm report, May 1, 8:29 PM EDT, 1 hour 32 minutes before

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Local storm report, May 1, 8:49 PM EDT, 1 hour 12 minutes before

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Special weather statement, May 1, 9:00 PM EDT, 1 hour 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
900 PM EDT TUE MAY 1 2012

INZ050-058-059-OHZ060-061-070-020200-
UNION IN-FAYETTE IN-WAYNE IN-BUTLER OH-MONTGOMERY OH-PREBLE OH-
900 PM EDT TUE MAY 1 2012

...A LINE OF THUNDERSTORMS WILL AFFECT PREBLE...WESTERN
MONTGOMERY...NORTHWESTERN BUTLER...SOUTHERN WAYNE...FAYETTE AND
UNION COUNTIES THROUGH 1000 PM EDT...

AT 9 PM EDT...RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
ACROSS SOUTHERN WAYNE AND FAYETTE AND UNION COUNTIES.

THESE STORMS WERE MOVING EAST AT 40 MPH.

WIND GUSTS TO 30 MPH AND ONE HALF INCH DIAMETER HAIL ARE POSSIBLE
WITH THIS STORM.

IN ADDITION...FREQUENT CLOUD TO GROUND LIGHTNING AND VERY HEAVY RAIN
CAN BE EXPECTED WITH THESE STORMS.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...WEST COLLEGE CORNER...
RICHMOND...NEW PARIS...CAMDEN...EATON...GRATIS...WEST ALEXANDRIA AND
LEWISBURG.

ALSO...COTTAGE GROVE...KITCHEL...WITTS STATION...COLLEGE CORNER...
GOODWINS CORNER...SPRING GROVE...BOSTON AND RICHMOND MUNICIPAL
AIRPORT ARE NEAR THE PATH OF THIS STRONG THUNDERSTORM.

DO NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS. MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. WATER WILL
POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND SMALL
STREAMS.

LAT...LON 3969 8530 3979 8531 3979 8530 3979 8523
      3983 8523 3985 8522 3987 8441 3956 8439
      3953 8531 3968 8531

Special weather statement, May 1, 9:59 PM EDT, 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
959 PM EDT TUE MAY 1 2012

OHZ054-062-063-071-072-020230-
CLINTON OH-FAYETTE OH-GREENE OH-MADISON OH-WARREN OH-
959 PM EDT TUE MAY 1 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN WARREN...
SOUTHWESTERN MADISON...SOUTHEASTERN GREENE...NORTHWESTERN FAYETTE AND
NORTHERN CLINTON COUNTIES THROUGH 1030 PM EDT...

AT 957 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM WILBERFORCE TO GENNTOWN...MOVING EAST AT 40 MPH.

WIND GUSTS TO 45 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. IN ADDITION...VERY HEAVY RAINFALL WILL OCCUR.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...JAMESTOWN...
JEFFERSONVILLE...WILMINGTON AND SABINA.

ALSO...CAESAR CREEK STATE PARK...NEW BURLINGTON...NEW JASPER...
OREGONIA...HARVEYSBURG...MIDDLETON CORNER...BELL CENTER AND GLADSTONE
ARE NEAR THE PATH OF THIS LINE OF STRONG THUNDERSTORMS.

LAT...LON 3978 8385 3977 8364 3973 8364 3971 8342
      3948 8357 3939 8373 3945 8430

HATZOS

Special weather statement, May 1, 10:01 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1001 PM EDT TUE MAY 1 2012

INZ066-074-OHZ070-077-020230-
FRANKLIN IN-DEARBORN IN-BUTLER OH-HAMILTON OH-
1001 PM EDT TUE MAY 1 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN
HAMILTON...SOUTHERN BUTLER...NORTHERN DEARBORN AND SOUTHEASTERN
FRANKLIN COUNTIES THROUGH 1030 PM EDT...

AT 957 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM SCIPIO TO LAWRENCEVILLE...MOVING EAST AT 35 MPH.

WIND GUSTS TO 45 MPH AND ONE HALF INCH DIAMETER HAIL ARE POSSIBLE
WITH THESE STORMS.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...HARRISON...HAMILTON...
ROSS...FAIRFIELD...SPRINGDALE AND FOREST PARK.

ALSO...ST. CHARLES...NEW ALSACE...ROCKDALE...OKEANA...DOVER...
MCGONIGLE...ALERT AND LOGAN ARE NEAR THE PATH OF THIS LINE OF STRONG
THUNDERSTORMS.

LAT...LON 3943 8442 3930 8443 3920 8463 3922 8508
      3931 8506 3949 8483

HATZOS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 8:05 PM EDT	Special Weather Statement	ILN	Highland	40 min
May 1, 9:00 PM EDT	Special Weather Statement	ILN	Preble	60 min
May 1, 9:06 PM EDT	Areal Flood Advisory	ILN	Preble	4 hr
May 1, 9:31 PM EDT	Flash Flood Warning	ILN	Butler, Montgomery, Preble	3 hr
May 1, 9:59 PM EDT	Special Weather Statement	ILN	Clinton, Greene	31 min
May 1, 10:00 PM EDT	Areal Flood Warning	ILN	Hamilton	3 hr
May 1, 10:21 PM EDT	Special Weather Statement	ILN	Clinton, Fayette	39 min
May 1, 10:28 PM EDT	Flash Flood Warning	ILN	Butler, Hamilton	4 hr
May 1, 10:30 PM EDT	Areal Flood Advisory	ILN	Clinton, Greene, Warren	3 hr
May 1, 11:26 PM EDT	Special Weather Statement	ILN	Clinton	34 min
May 1, 11:29 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Highland, Warren	31 min
May 1, 11:36 PM EDT	Areal Flood Advisory	ILN	Brown, Clermont, Highland	3 hr
May 1, 11:44 PM EDT	Special Weather Statement	ILN	Butler	61 min
May 2, 12:08 AM EDT	Special Weather Statement	ILN	Warren	37 min
May 2, 12:12 AM EDT	Flash Flood Warning	ILN	Brown, Clermont, Clinton, Highland, Warren	4 hr
May 2, 12:17 AM EDT	Special Weather Statement	ILN	Pike	28 min
May 2, 12:19 AM EDT	Areal Flood Advisory	ILN	Auglaize, Mercer	3 hr
May 2, 12:40 AM EDT	Special Weather Statement	ILN	Clermont	35 min
May 2, 12:53 AM EDT	Areal Flood Advisory	ILN	Pike, Ross	3 hr
May 2, 12:57 AM EDT	Special Weather Statement	ILN	Pike, Ross	33 min
May 2, 1:12 AM EDT	Special Weather Statement	ILN	Greene	33 min
May 2, 1:23 AM EDT	Areal Flood Advisory	ILN	Auglaize, Hardin, Logan, Shelby, Union	3 hr
May 2, 1:24 AM EDT	Special Weather Statement	ILN	Pike, Scioto	21 min
May 2, 2:25 AM EDT	Areal Flood Warning	ILN	Hamilton	9 hr
May 2, 2:38 AM EDT	River Flood Warning	ILN	Clermont, Hamilton	9 hr
May 2, 2:38 AM EDT	River Flood Warning	ILN	Clermont, Hamilton, Warren	11 hr

Nearby

Special Weather Statements in Ohio, 2012 Every special weather statement in 2012

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.