Alert archive / Ohio / Flash Flood Watches in 2014

Flash Flood Watch 3, NWS Wilmington, OH

May 12, 201412 counties in Ohio; Fayette County, Union County, Wayne County, Indiana

NWS Wilmington, OH issued this flash flood watch at May 12, 2014, 12:00 AM EDT for 12 counties in Ohio; Fayette County, Union County, Wayne County, Indiana. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
May 12, 2014, 12:00 AM EDT (04:00 UTC)
Expired
May 12, 2014, 7:59 AM EDT
In force
8 hr
Issued by
NWS Wilmington, OH
Flood severity
None

Counties Fayette County, IN, Union County, IN, Wayne County, IN, Auglaize County, OH, Champaign County, OH, Clark County, OH, Darke County, OH, Greene County, OH, Hardin County, OH, Logan County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH

The radar

The Cincinnati radar (KILN), 84 km from the middle of the area, began a volume at 04:02 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, 4.0 hours before the alert went out and 84 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 2014-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 556 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 2014-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
556 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1269 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
260 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at May 11, 8:17 PM EDT, 3 hours 43 minutes earlier.

Area forecast discussion, May 11, 8:17 PM EDT, 3 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON OH
817 PM EDT SUN MAY 11 2014

.SYNOPSIS...
SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THIS EVENING AND ON
MONDAY AS MULTIPLE DISTURBANCES WORK ACROSS THE REGION. ADDITIONAL
THUNDERSTORMS ARE EXPECTED ON TUESDAY AS A COLD FRONT APPROACHES
THE AREA.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS THE AREA THIS
EVENING AS AN UPPER LEVEL DISTURBANCE MOVES THROUGH THE AREA. SOME
OF THESE THUNDERSTORMS WILL CONTINUE TO BE STRONG TO SEVERE AND
THEREFORE WILL CONTINUE MENTIONING THE SEVERE THREAT IN THE HWO. THERE
WILL BE A LULL OR DECREASE IN PRECIPITATION DURING PART OF THE
NIGHT. BY THE END OF THE NEAR TERM HOWEVER MODELS ARE INDICATING
THAT A DECAYING MCS WILL BE MOVING INTO THE AREA.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
DECAYING MCS WILL MOVE ACROSS THE AREA THROUGH THE MIDDLE OF THE
DAY. ALTHOUGH THERE IS SOME DISAGREEMENT WITH THE MODELS ON THE
STRENGTH OF THIS FEATURE THERE IS ENOUGH CONFIDENCE TO INCREASE
PRECIPITATION CHANCES FOR THE MORNING AND MID DAY HOURS ON MONDAY.
WITH THIS PRECIPITATION MOVING INTO THE AREA HAVE ALSO INCREASED
CLOUD COVER AND DECREASED TEMPERATURES FOR MONDAY. THERE WILL BE A
LATE DAY RECOVERY IN TEMPERATURES.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
COLD FRONT WILL APPROACH THE REGION ON TUESDAY AND MOVE INTO THE
FORECAST AREA TUESDAY NIGHT. EXPECT THIS BOUNDARY TO STALL OUT
ACROSS THE AREA ON WEDNESDAY. SO CHANCE OF SHOWERS AND THUNDERSTORMS
WILL INCREASE THROUGH THE DAY TUESDAY AND CONTINUE INTO TUESDAY
EVENING WITH GREATER COVERAGE IN THE WEST CLOSER TO THE BOUNDARY.
APPEARS THAT THERE MAY BE A LULL IN ACTIVITY LATER TUESDAY NIGHT
INTO WEDNESDAY MORNING AS INSTABILITY DECREASES TO A DIURNAL MINIMUM
AND UPPER SUPPORT IS WEAK. BUT THEN A MORE VIGOROUS SHORT WAVE WILL
APPROACH FROM THE SOUTHWEST ON WEDNESDAY PROVIDING LARGE SCALE LIFT.
SO SHOWERS AND THUNDERSTORMS SHOULD BECOME NUMEROUS. TEMPERATURES
WILL BE WELL ABOVE NORMAL TUESDAY AND TUESDAY NIGHT. WEDNESDAY HIGHS
WILL BE QUITE DEPENDENT ON EXTENT OF CLOUD COVER AND HOW FAST
PRECIPITATION DEVELOPS.

SOUTHERN STREAM SHORT WAVE WILL LIFT TOWARDS THE REGION WEDNESDAY
NIGHT AND PHASE WITH THE NORTHERN STREAM. THIS WILL DEVELOP A CLOSED
LOW THAT WILL THEN SLOWLY LIFT NORTH THROUGH THE END OF THE WEEK.
INITIAL DISTURBANCE WILL MOVE EAST OF THE FORECAST AREA LATE
THURSDAY. THIS WILL HELP PUSH THE COLD FRONT EAST OF THE AREA. BUT
UNTIL THIS OCCURS CONDITIONS WILL BE WET WITH SHOWERS AND EMBEDDED
THUNDERSTORMS. THERE WILL BE A NARROWED DIURNAL RANGE WITH LOWS NEAR
NORMAL AND HIGHS BELOW NORMAL. ADDITIONAL WEAK DISTURBANCES ROTATING
AROUND THE UPPER LOW COULD BRING A FEW LIGHT SHOWERS WITH THE
SOMEWHAT BETTER CHANCE OF MEASURABLE PRECIPITATION ON FRIDAY.
SURFACE HIGH PRESSURE WILL BE ABLE TO BUILD IN OVER THE WEEKEND.
TEMPERATURES WILL BE 6 TO 12 DEGREES BELOW NORMAL FOR THE END OF THE
WEEK THROUGH THE WEEKEND.

&&

.AVIATION /00Z MONDAY THROUGH FRIDAY/...
SCATTERED STORMS WILL CONTINUE THROUGH THE EARLY PART OF THE TAF
PERIOD. THESE COULD STILL BRING GUSTY WINDS WITH HEAVY DOWNPOURS
TEMPORARILY REDUCING VISIBILITY TO IFR. APPEARS THAT CONVECTION
SHOULD DIMINISH AFTER 03Z. THERE IS QUITE A BIT OF UNCERTAINTY
CONCERNING LATER CONVECTIVE POTENTIAL. BUT THERE ARE SIGNALS THAT
THE REMAINS OF A COMPLEX OF STORMS COULD DROP INTO THE REGION
AFTER 09Z. SO HAVE INCLUDED VCTS AT ALL TERMINALS FOR SEVERAL
HOURS AROUND 12Z. IT IS NOT OUT OF THE QUESTION THAT SOME
VISIBILITY RESTRICTIONS IN MIST COULD DEVELOP LATE TONIGHT...
ESPECIALLY IF STORMS DO NOT MATERIALIZE. BUT GIVEN UNCERTAINTIES
INVOLVED HAVE NOT INCLUDED IN THE FORECAST EXCEPT AT KLUK. IF A
COMPLEX DOES MOVE ACROSS THE AREA IN THE MORNING THEN THE CHANCE
OF ADDITIONAL STORMS THROUGH THE REMAINDER OF THE TAF PERIOD WILL
BE QUITE LOW.

OUTLOOK...THUNDERSTORMS POSSIBLE TUESDAY INTO WEDNESDAY NIGHT.
MVFR CEILINGS AND VISIBILITIES POSSIBLE WEDNESDAY INTO THURSDAY.

&&

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

&&

SYNOPSIS...NOVAK
NEAR TERM...NOVAK
SHORT TERM...NOVAK
LONG TERM...
AVIATION...
Hazardous weather outlook, May 11, 6:02 PM EDT, 5 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON OH
602 PM EDT SUN MAY 11 2014

INZ050-058-059-066-073>075-080-KYZ089>100-OHZ026-034-035-042>046-
051>056-060>065-070>074-077>082-088-122215-
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-
602 PM EDT SUN MAY 11 2014

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.

SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THROUGH THIS
EVENING. A FEW OF THESE STORMS MAY BECOME STRONG TO SEVERE. THE
MAIN THREATS WOULD BE DAMAGING WINDS AND LARGE HAIL. AN ISOLATED
TORNADO CANNOT BE RULED OUT.  IN ADDITION...BRIEF HEAVY DOWNPOURS
WILL BE POSSIBLE WITH THE THUNDERSTORMS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.

In the hours before

Local storm report, May 11, 9:26 PM EDT, 2 hours 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
926 PM EDT SUN MAY 11 2014

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

0627 PM     HAIL             ALPINE                  39.55N 85.18W
05/11/2014  M1.00 INCH       FAYETTE            IN   LAW ENFORCEMENT

            TREES ALSO REPORTED DOWN.

&&

ANOVAK
Special weather statement, May 11, 9:30 PM EDT, 2 hours 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON OH
930 PM EDT SUN MAY 11 2014

OHZ063-064-120200-
FAYETTE OH-PICKAWAY OH-
930 PM EDT SUN MAY 11 2014

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL PICKAWAY AND EASTERN
FAYETTE COUNTIES THROUGH 1000 PM EDT...

AT 929 PM EDT...RADAR INDICATED A STRONG THUNDERSTORM NEAR NEW
HOLLAND...MOVING EAST AT 25 MPH.

STORM HAZARDS INCLUDE...
WINDS TO 50 MPH...
ONE HALF INCH DIAMETER HAIL...

SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...CIRCLEVILLE.

ALSO...DEER CREEK LAKE...FIVE POINTS...WILLIAMSPORT...FOX AND LOGAN
ELM VILLAGE ARE NEAR THE PATH OF THIS STRONG THUNDERSTORM.

RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT. IF THIS STORM BECOMES
STRONGER...THEN A WARNING MAY BE NEEDED.

LAT...LON 3973 8289 3951 8288 3952 8330 3965 8334
Local storm report, May 11, 9:46 PM EDT, 2 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON OH
946 PM EDT SUN MAY 11 2014

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

0942 PM     TSTM WND GST     NEW HOLLAND             39.55N 83.26W
05/11/2014  M60 MPH          FAYETTE            OH   AMATEUR RADIO

&&
Local storm report, May 11, 10:46 PM EDT, 1 hour 14 minutes before
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Special weather statement, May 11, 10:57 PM EDT, 1 hour 3 minutes before
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Local storm report, May 11, 11:46 PM EDT, 14 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
May 11, 8:30 PM EDTSpecial Weather StatementILNButler45 min
May 11, 8:31 PM EDTSpecial Weather StatementILNFranklin29 min
May 11, 8:34 PM EDTSevere Thunderstorm WarningILNFranklin, Pickaway41 min
May 11, 8:56 PM EDTSpecial Weather StatementILNWarren34 min
May 11, 9:24 PM EDTSpecial Weather StatementILNLicking36 min
May 11, 9:30 PM EDTSpecial Weather StatementILNPickaway30 min
May 11, 9:44 PM EDTSevere Thunderstorm WarningILNFairfield, Fayette, Pickaway, Ross46 min
May 11, 10:13 PM EDTSevere Thunderstorm WarningILNHocking, Pickaway, Ross47 min
May 11, 10:57 PM EDTSpecial Weather StatementILNHocking33 min
May 11, 11:10 PM EDTAreal Flood AdvisoryILNFairfield, Hocking, Pickaway, Ross2 hr
May 12, 1:15 AM EDTSpecial Weather StatementILNMercer30 min
May 12, 1:41 AM EDTAreal Flood AdvisoryILNAuglaize, Darke, Mercer, Miami, Shelby3 hr
May 12, 1:44 AM EDTSpecial Weather StatementILNAuglaize, Darke, Mercer31 min
May 12, 2:14 AM EDTSpecial Weather StatementILNAuglaize, Miami, Shelby31 min
May 12, 2:26 AM EDTAreal Flood AdvisoryILNMiami, Montgomery, Preble6 hr
May 12, 2:42 AM EDTAreal Flood AdvisoryILNChampaign, Clark, Greene, Hardin, Logan5 hr
May 12, 2:46 AM EDTSpecial Weather StatementILNChampaign, Clark, Hardin, Logan, Miami, Montgomery29 min
May 12, 3:16 AM EDTSpecial Weather StatementILNChampaign, Clark, Greene, Madison, Union29 min
May 12, 3:44 AM EDTSpecial Weather StatementILNDelaware, Greene, Madison, Union31 min
May 12, 3:55 AM EDTAreal Flood AdvisoryILNButler, Warren4 hr
May 12, 4:45 AM EDTAreal Flood AdvisoryILNAuglaize, Darke, Mercer, Miami, Shelby3 hr
May 12, 5:18 PM EDTSpecial Weather StatementILNCarroll27 min
May 12, 5:42 PM EDTSpecial Weather StatementILNSwitzerland33 min

Nearby

Flash Flood Watches in Ohio, 2014Flash Flood Watches in Indiana, 2014Every flash flood watch in 2014

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.