Alert archive / Ohio / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, OH

May 1, 2012Clinton County, Greene County, Ohio

NWS Wilmington, OH issued this special weather statement at May 1, 2012, 9:59 PM EDT for Clinton County, Greene County, Ohio. It was in force for 31 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, 9:59 PM EDT (01:59 UTC)
Expired
May 1, 2012, 10:30 PM EDT
In force
31 min
Issued by
NWS Wilmington, OH

Counties Clinton County, OH, Greene County, OH

The radar

The Cincinnati radar (KILN), 25 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

Pittsburgh, PA (KPIT), launched 00:00Z, 2.0 hours before the alert went out and 322 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-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2012-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2012-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1907 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
144 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.

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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 4 minutes earlier.

Area forecast discussion, May 1, 7:55 PM EDT, 2 hours 4 minutes before
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Hazardous weather outlook, May 1, 8:08 PM EDT, 1 hour 51 minutes before
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In the hours before

Special weather statement, May 1, 8:05 PM EDT, 1 hour 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
805 PM EDT TUE MAY 1 2012

OHZ071-072-078>080-020045-
BROWN OH-CLINTON OH-WARREN OH-CLERMONT OH-HIGHLAND OH-
805 PM EDT TUE MAY 1 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN HIGHLAND...NORTHEASTERN
CLERMONT...SOUTHEASTERN WARREN...SOUTHERN CLINTON AND NORTHERN BROWN
COUNTIES THROUGH 845 PM EDT...

AT 801 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR EDENTON...
MOVING EAST AT 45 MPH.

WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THIS STORM.

IN ADDITION...FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAIN CAN
BE EXPECTED WITH THIS STORM.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...BLANCHESTER...
FAYETTEVILLE...ST. MARTIN...LYNCHBURG...NEW VIENNA...HILLSBORO AND
MARSHALL.

ALSO...WOODVILLE...CHASETOWN...WESTBORO...MIDLAND...MARTINSVILLE...
MORRISVILLE...RUSSELL AND NEW MARKET 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 3938 8360 3912 8346 3913 8413 3931 8417

BINAU
Local storm report, May 1, 8:09 PM EDT, 1 hour 50 minutes before
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Local storm report, May 1, 8:29 PM EDT, 1 hour 30 minutes before
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Local storm report, May 1, 8:49 PM EDT, 1 hour 10 minutes before
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Special weather statement, May 1, 9:00 PM EDT, 59 minutes 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, 0 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

The office that day

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

IssuedProductOfficeCountiesLasted
May 1, 8:05 PM EDTSpecial Weather StatementILNHighland40 min
May 1, 9:00 PM EDTSpecial Weather StatementILNPreble60 min
May 1, 9:06 PM EDTAreal Flood AdvisoryILNPreble4 hr
May 1, 9:31 PM EDTFlash Flood WarningILNButler, Montgomery, Preble3 hr
May 1, 10:00 PM EDTAreal Flood WarningILNHamilton3 hr
May 1, 10:01 PM EDTSpecial Weather StatementILNButler29 min
May 1, 10:21 PM EDTSpecial Weather StatementILNClinton, Fayette39 min
May 1, 10:28 PM EDTFlash Flood WarningILNButler, Hamilton4 hr
May 1, 10:30 PM EDTAreal Flood AdvisoryILNClinton, Greene, Warren3 hr
May 1, 11:26 PM EDTSpecial Weather StatementILNClinton34 min
May 1, 11:29 PM EDTSevere Thunderstorm WarningILNBrown, Clermont, Clinton, Highland, Warren31 min
May 1, 11:36 PM EDTAreal Flood AdvisoryILNBrown, Clermont, Highland3 hr
May 1, 11:44 PM EDTSpecial Weather StatementILNButler61 min
May 2, 12:08 AM EDTSpecial Weather StatementILNWarren37 min
May 2, 12:12 AM EDTFlash Flood WarningILNBrown, Clermont, Clinton, Highland, Warren4 hr
May 2, 12:17 AM EDTSpecial Weather StatementILNPike28 min
May 2, 12:19 AM EDTAreal Flood AdvisoryILNAuglaize, Mercer3 hr
May 2, 12:40 AM EDTSpecial Weather StatementILNClermont35 min
May 2, 12:53 AM EDTAreal Flood AdvisoryILNPike, Ross3 hr
May 2, 12:57 AM EDTSpecial Weather StatementILNPike, Ross33 min
May 2, 1:12 AM EDTSpecial Weather StatementILNGreene33 min
May 2, 1:23 AM EDTAreal Flood AdvisoryILNAuglaize, Hardin, Logan, Shelby, Union3 hr
May 2, 1:24 AM EDTSpecial Weather StatementILNPike, Scioto21 min
May 2, 2:25 AM EDTAreal Flood WarningILNHamilton9 hr
May 2, 2:38 AM EDTRiver Flood WarningILNClermont, Hamilton9 hr
May 2, 2:38 AM EDTRiver Flood WarningILNClermont, Hamilton, Warren11 hr

Nearby

Special Weather Statements in Ohio, 2012Every 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.