Alert archive / Ohio / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, OH

May 1, 2012Butler County, Ohio; Franklin County, Indiana

NWS Wilmington, OH issued this special weather statement at May 1, 2012, 11:44 PM EDT for Butler County, Ohio; Franklin County, Indiana. It was in force for 61 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, 11:44 PM EDT (03:44 UTC)
Expired: May 2, 2012, 12:45 AM EDT
In force: 61 min
Issued by: NWS Wilmington, OH

Counties Franklin County, IN, Butler County, OH

The radar

The Cincinnati radar (KILN), 89 km from the middle of the area, began a volume at 03:48 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, 3.7 hours before the alert went out and 328 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, 11:34 PM EDT, 10 minutes earlier.

Area forecast discussion, May 1, 11:34 PM EDT, 10 minutes before

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Hazardous weather outlook, May 1, 11:15 PM EDT, 29 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
1115 PM EDT TUE MAY 1 2012

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-030315-
WAYNE-FAYETTE IN-UNION IN-FRANKLIN IN-RIPLEY-DEARBORN-OHIO-
SWITZERLAND-CARROLL-GALLATIN-BOONE-KENTON-CAMPBELL-OWEN-GRANT-
PENDLETON-BRACKEN-ROBERTSON-MASON-LEWIS-HARDIN-MERCER-AUGLAIZE-DARKE-
SHELBY-LOGAN-UNION OH-DELAWARE-MIAMI-CHAMPAIGN-CLARK-MADISON-
FRANKLIN OH-LICKING-PREBLE-MONTGOMERY-GREENE-FAYETTE OH-PICKAWAY-
FAIRFIELD-BUTLER-WARREN-CLINTON-ROSS-HOCKING-HAMILTON-CLERMONT-BROWN-
HIGHLAND-ADAMS-PIKE-SCIOTO-
1115 PM EDT TUE MAY 1 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL
INDIANA...SOUTHEAST INDIANA...NORTHEAST KENTUCKY...NORTHERN
KENTUCKY...CENTRAL OHIO...MIAMI VALLEY OF OHIO...SOUTH CENTRAL
OHIO...SOUTHWEST OHIO AND WEST CENTRAL OHIO.

.DAY ONE...TONIGHT.
THUNDERSTORMS WILL CONTINUE TO TRACK ACROSS THE AREA FROM WEST TO
EAST TONIGHT. THESE STORMS WILL CONTAIN HEAVY RAIN WHICH MAY LEAD
TO FLOODING. ALONG WITH THE FLOOD THREAT...GUSTY WINDS AND SMALL
HAIL WILL ALSO BE POSSIBLE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
SEVERAL ROUNDS OF HEAVY SHOWERS AND THUNDERSTORMS WEDNESDAY
THROUGH SATURDAY MAY RESULT IN A FLASH FLOOD THREAT. IF CONDITIONS
INDICATE EXCESSIVE RAIN POTENTIAL ON ACCOUNT OF REPEATED HEAVY
THUNDERSTORMS...A FLASH FLOOD WATCH MAY BE NECESSARY FOR THE MOST
VULNERABLE COUNTIES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, May 1, 10:01 PM EDT, 1 hour 43 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

Special weather statement, May 1, 10:21 PM EDT, 1 hour 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1021 PM EDT TUE MAY 1 2012

OHZ062-063-072-080-020300-
CLINTON OH-FAYETTE OH-GREENE OH-HIGHLAND OH-
1021 PM EDT TUE MAY 1 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHERN HIGHLAND...
SOUTHEASTERN GREENE...FAYETTE AND CLINTON COUNTIES THROUGH 1100 PM
EDT...

AT 1020 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM BOOKWALTER TO CUBA...MOVING EAST AT 40 MPH.

WIND GUSTS TO 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...
WILMINGTON...WASHINGTON COURT HOUSE...
JEFFERSONVILLE...LYNCHBURG...SABINA...NEW VIENNA...
BLOOMINGBURG...LEESBURG.

ALSO...BLOOMINGTON...CUBA...OCTA...BURTONVILLE...BOOKWALTER...
MELVIN...MILLEDGEVILLE AND MARTINSVILLE ARE NEAR THE PATH OF THIS
LINE OF STRONG THUNDERSTORMS.

LAT...LON 3937 8338 3921 8359 3920 8386 3925 8387
      3925 8401 3939 8400 3972 8368 3970 8325

HATZOS

Special weather statement, May 1, 11:26 PM EDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
1126 PM EDT TUE MAY 1 2012

OHZ071-072-078>080-020400-
BROWN OH-CLINTON OH-WARREN OH-CLERMONT OH-HIGHLAND OH-
1126 PM EDT TUE MAY 1 2012

...A STRONG THUNDERSTORM WILL AFFECT WESTERN HIGHLAND...NORTHERN
CLERMONT...SOUTHEASTERN WARREN...SOUTHERN CLINTON AND NORTHERN BROWN
COUNTIES THROUGH MIDNIGHT EDT...

AT 1125 PM EDT...RADAR INDICATED TWO STRONG THUNDERSTORMS. ONE WAS
LOCATED NEAR SPRINGVALE...AND ANOTHER WAS LOCATED NEAR FAYETTEVILLE.
THESE STORMS ARE MOVNIG EAST AT 35 MPH.

WIND GUSTS TO 40 MPH AND PENNY SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.

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

ALSO...MURDOCK...SPRINGVALE...DALLASBURG...GOSHEN...PLEASANT PLAIN...
BUTLERVILLE...NEWTONSVILLE AND EDENTON ARE NEAR THE PATH OF THIS
STRONG THUNDERSTORM.

LAT...LON 3935 8368 3922 8364 3911 8369 3915 8427
      3931 8425

HATZOS

Local storm report, May 1, 11:29 PM EDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
1129 PM EDT TUE MAY 01 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1114 PM     HEAVY RAIN       GLENDALE                39.27N 84.46W
05/01/2012  M2.68 INCH       HAMILTON           OH   BROADCAST MEDIA

            STORM TOTAL RAINFALL.

&&

SFH

Special weather statement, May 1, 11:44 PM EDT, 0 minutes before

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Special weather statement, May 1, 11:44 PM EDT, 0 minutes before

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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, 10:01 PM EDT	Special Weather Statement	ILN	Butler	29 min
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 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 Special Weather Statements in Indiana, 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.