Alert archive / Ohio / Special Weather Statements in 2012

Special Weather Statement, NWS Wilmington, OH

July 15, 2012Madison County, Ohio

NWS Wilmington, OH issued this special weather statement at Jul 15, 2012, 9:27 PM EDT for Madison County, Ohio. It was in force for 33 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 15, 2012, 9:27 PM EDT (01:27 UTC)
Expired
Jul 15, 2012, 10:00 PM EDT
In force
33 min
Issued by
NWS Wilmington, OH

County Madison County, OH

The radar

The Cincinnati radar (KILN), 55 km from the middle of the area, began a volume at 01:29 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.5 hours before the alert went out and 53 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, Cncnati-Daytn, OH at 00:00Z on 2012-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1190 joules per kilogram.LCLLFCEL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2012-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
1190 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
1078 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.3

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 Jul 15, 7:39 PM EDT, 1 hour 48 minutes earlier.

Area forecast discussion, Jul 15, 7:39 PM EDT, 1 hour 48 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
739 PM EDT SUN JUL 15 2012

.SYNOPSIS...
AN UPPER LEVEL DISTURBANCE WILL CONTINUE TO WORK THROUGH THE AREA
THIS EVENING KEEPING SHOWERS AND THUNDERSTORMS ACROSS THE REGION.
SHOWERS AND THUNDERSTORMS WILL STAY IN THE FORECAST FOR PARTS OF
THE AREA TO START THE WORK WEEK AS MOISTURE WORKS NORTH INTO THE
AREA.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
ISOLATED TO SCATTERED THUNDERSTORM ACTIVITY WILL CONTINUE OVER THE
NEXT COUPLE OF HOURS BEFORE DECREASING ACROSS THE AREA WITH
SUNSET. MADE ONLY MINOR ADJUSTMENT TO TEMPERATURES FOR THE
OVERNIGHT TO ADJUST FOR CURRENT TRENDS. WENT CLOSE TO GUIDANCE FOR
LOW TEMPERATURES OVERNIGHT.  NORTHERN PORTIONS OF THE FA WILL
BEGIN TO CLEAR OUT LATER DURING THE OVERNIGHT AND SOME FOG
FORMATION WILL BE POSSIBLE. FOG DOES NOT LOOK LIKE IT WILL BE
DENSE ENOUGH TO PUT IN THE FORECAST AT THIS AND THEREFORE LEFT FOG
OUT CURRENTLY FOR THE OVERNIGHT.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
MOISTURE WILL WORK UP INTO SOUTHERN PORTIONS OF THE FA FOR MONDAY
DURING THE DAY BRINGING A CHANCE OF SHOWERS AND THUNDERSTORMS TO
NORTHERN KENTUCKY...SOUTHERN OHIO...AND SE INDIANA. THE REST OF
THE AREA WILL REMAIN DRY ON MONDAY. WITH LESS CLOUD COVER AND
PRECIPITATION ACROSS THE AREA EXPECT TEMPERATURES TO BE SLIGHTLY
WARMER THAN SUNDAY. WENT WITH HIGHS IN THE UPPER 80S TO THE LOWER
90S WITH THE LOWEST TEMPERATURES ACROSS SOUTHERN PORTIONS OF THE
FA WHERE MORE CLOUD COVER AND PRECIPITATION WILL BE PRESENT.
PRECIPITATION WILL TAPER OFF DURING THE EVENING HOURS MONDAY NIGHT
AND HIGH PRESSURE WILL BRIEFLY WORK INTO THE AREA.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
RISING UPPER HEIGHTS AND SOUTHWEST LOW LEVEL FLOW WILL RESULT IN
TEMPERATURES AND DEW POINTS CONTINUING TO INCREASE TUESDAY WITH A
WARM AND MUGGY TUESDAY NIGHT. HAVE LEANED TOWARDS WARMER GUIDANCE
FOR TEMPERATURES BOTH PERIODS. A WEAK DISTURBANCE ROUNDING AN
UPPER RIDGE WILL COMBINED WITH PEAK HEATING COULD RESULT IN SOME
STORMS DEVELOPING TUESDAY AFTERNOON INTO THE EVENING. CHANCE OF
STORMS WILL INCREASE HEADING INTO WEDNESDAY AS A COLD FRONT MOVES
INTO THE AREA FROM THE NORTH. THE FRONT WILL SAG SOUTH WEDNESDAY
NIGHT AND THURSDAY RESULTING IN A GOOD CHANCE OF SHOWERS AND
THUNDERSTORMS NEAR AND AHEAD OF THE FRONT.

THE FRONT WILL CLEAR THE FORECAST AREA BY THURSDAY EVENING WITH HIGH
PRESSURE BUILDING IN THROUGH THE REST OF THE WEEK. THIS WILL USHER
IN LESS HUMID AIR WITH TEMPERATURES CLOSER TO NORMAL. THE HIGH WILL
MOVE OFF TO THE EAST ON SUNDAY AND THERE IS THE POSSIBILITY OF A
SYSTEM APPROACHING FROM THE NORTHWEST. BUT QUITE A BIT OF
UNCERTAINTY THAT FAR OUT IN TIME WHETHER THERE WILL MUCH OF A CHANCE
OF RAIN ON SUNDAY.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
SCATTERED SHOWERS WITH A FEW THUNDERSTORMS WILL CONTINUE INTO THIS
EVENING...MAINLY NEAR KDAY AND KILN. THIS ACTIVITY WILL DIMINISH
BEFORE MIDNIGHT. SCATTERED CU WILL REMAIN ACROSS THE AREA OVERNIGHT
TONIGHT. IT IS APPEARING LESS LIKELY NOW THAT A STRATUS DECK WILL
DEVELOP OVERNIGHT TONIGHT. HAVE THEREFORE REMOVED THIS FEATURE
FROM THE FORECAST. IN TURN HOWEVER...PLENTY OF SURFACE
MOISTURE WILL COMBINE WITH RADIATIONAL COOLING UNDER MOSTLY CLEAR
SKIES TO ALLOW FOR FOG/MIST TO DEVELOP ACROSS THE AREA. THIS SEEMS
REASONABLE AS AREAS UPSTREAM ACROSS IL/IN LAST NIGHT EXPERIENCED
SEVERAL HOURS OF MVFR VSBYS. THE BEST CHANCES FOR MORE DENSE
FOG/MIST APPEARS TO BE ACROSS THE SOUTHERN TERMINALS. AFTER
SUNRISE...VFR CONDITIONS ARE EXPECTED TO RETURN WITH SCATTERED CU
LASTING THROUGHOUT THE DAY.

OUTLOOK...THUNDERSTORMS POSSIBLE WEDNESDAY.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...NONE.
KY...NONE.
IN...NONE.

&&

SYNOPSIS...NOVAK
NEAR TERM...NOVAK
SHORT TERM...NOVAK
LONG TERM...
AVIATION...LATTO
Hazardous weather outlook, Jul 15, 5:31 AM EDT, 15 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
531 AM EDT SUN JUL 15 2012

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-160945-
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-
531 AM EDT SUN JUL 15 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...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Special weather statement, Jul 15, 7:38 PM EDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
738 PM EDT SUN JUL 15 2012

OHZ042-051-061-160015-
DARKE OH-MIAMI OH-MONTGOMERY OH-
738 PM EDT SUN JUL 15 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN MONTGOMERY...
SOUTHWESTERN MIAMI AND SOUTHEASTERN DARKE COUNTIES THROUGH 815 PM
EDT...

AT 734 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR UNION
CORNERS...MOVING SOUTHEAST AT 20 MPH.

WIND GUSTS TO 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS STORM.

IN ADDITION...HEAVY RAIN CAN BE EXPECTED WITH THIS STORM.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...COVINGTON...PLEASANT
HILL...WEST MILTON AND TROY.

ALSO...PITSBURG...CIRCLE HILL...LAURA...POTSDAM...LUDLOW FALLS...
PHILLIPSBURG...GARLAND AND UNION ARE NEAR THE PATH OF THIS STRONG
THUNDERSTORM.

WATER WILL POND ON ROADS AND MAY QUICKLY FILL ROADSIDE DITCHES AND
SMALL STREAMS.

LAT...LON 4007 8415 3983 8437 4003 8461 4015 8445
Special weather statement, Jul 15, 8:02 PM EDT, 1 hour 25 minutes before
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Special weather statement, Jul 15, 8:23 PM EDT, 1 hour 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
823 PM EDT SUN JUL 15 2012

OHZ051>054-061-062-160100-
CHAMPAIGN OH-CLARK OH-GREENE OH-MADISON OH-MIAMI OH-MONTGOMERY OH-
823 PM EDT SUN JUL 15 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
MONTGOMERY...SOUTHEASTERN MIAMI...NORTHERN MADISON...NORTHWESTERN
GREENE...CLARK AND SOUTHERN CHAMPAIGN COUNTIES THROUGH 900 PM EDT...

AT 816 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM TROY TO URBANA...MOVING SOUTHEAST AT 20 MPH.

WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...NEW CARLISLE...
MECHANICSBURG...HUBER HEIGHTS...SPRINGFIELD...ENON...FAIRBORN AND
CHOCTAW LAKE.

ALSO...LAWRENCEVILLE...POWHATTAN...CATAWBA STATION...PHONETON...
DONNELSVILLE...NEW MOOREFIELD...BRANDT AND ROSEDALE ARE NEAR THE PATH
OF THIS LINE OF STRONG THUNDERSTORMS.

LAT...LON 4015 8350 4011 8350 4011 8343 4002 8326
      3984 8374 3978 8401 3998 8430 3999 8418
      4019 8357

ASL
Special weather statement, Jul 15, 8:55 PM EDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
855 PM EDT SUN JUL 15 2012

OHZ053-054-062-160130-
CLARK OH-GREENE OH-MADISON OH-
855 PM EDT SUN JUL 15 2012

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL MADISON...
NORTHEASTERN GREENE AND CLARK COUNTIES THROUGH 930 PM EDT...

AT 850 PM EDT...RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE
EXTENDING FROM HUBER HEIGHTS TO SPRINGFIELD TO NEW MOOREFIELD...
MOVING EAST SOUTHEAST AT 20 MPH.

WIND GUSTS TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...FAIRBORN...YELLOW
SPRINGS...SOUTH CHARLESTON...LONDON AND CEDARVILLE.

ALSO...HOLIDAY VALLEY...HARMONY...SOUTH VIENNA...HUSTEAD...
SPRINGFIELD MUNICIPAL AIRPORT...BRIGHTON...PLATTSBURG AND PITCHIN ARE
NEAR THE PATH OF THIS LINE OF STRONG THUNDERSTORMS.

LAT...LON 3988 8330 3979 8351 3971 8384 3983 8408
      3984 8405 3988 8405 3989 8405 3993 8393
      4002 8369 4002 8367

ASL
Special weather statement, Jul 15, 9:20 PM EDT, 7 minutes before
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Special weather statement, Jul 15, 9:27 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:02 PM EDTSpecial Weather StatementILNMiami28 min
Jul 15, 8:23 PM EDTSpecial Weather StatementILNClark37 min
Jul 15, 8:55 PM EDTSpecial Weather StatementILNClark, Madison35 min
Jul 15, 8:57 PM EDTSevere Thunderstorm WarningILNClark, Greene33 min
Jul 15, 9:20 PM EDTSpecial Weather StatementILNGreene25 min
Jul 15, 9:38 PM EDTSpecial Weather StatementILNGreene37 min
Jul 15, 10:12 PM EDTSpecial Weather StatementILNGreene33 min
Jul 16, 12:17 AM EDTSpecial Weather StatementILNClinton28 min
Jul 16, 12:40 AM EDTSpecial Weather StatementILNClinton35 min
Jul 16, 3:34 PM EDTHeat AdvisoryILNAdams, Auglaize, Brown, Butler, Champaign, Clark and 26 more28 hr
Jul 15, 10:03 PM EDTSpecial Weather StatementILNFranklin42 min

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.