Alert archive / Ohio / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Cleveland, OH

August 11, 2016Ashtabula County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 11, 2016, 2:50 PM EDT for Ashtabula County, Ohio. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 11, 2016, 2:50 PM EDT (18:50 UTC)
Expired
Aug 11, 2016, 5:45 PM EDT
In force
3 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Ashtabula County, OH

The radar

The Cleveland radar (KCLE), 100 km from the middle of the area, began a volume at 18:50 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 (KAGC), launched 12:00Z, 6.8 hours before the alert went out and 149 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 12:00Z on 2016-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1056 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2016-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 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
1056 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

600 
WGUS51 KCLE 111850
FFWCLE
OHC007-112145-
/O.NEW.KCLE.FF.W.0003.160811T1850Z-160811T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
250 PM EDT THU AUG 11 2016

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ASHTABULA COUNTY IN NORTHEASTERN OHIO...

* UNTIL 545 PM EDT

* AT 248 PM EDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN WITH THESE SLOW MOVING THUNDERSTORMS WITH
  ADDITIONAL RAINFALL EXPECTED OVER THE NEXT HOUR. RAINFALL RATES
  HAVE INCREASED TO 4 INCHES PER HOUR WHICH CAN QUICKLY PRODUCE
  FLASH FLOODING. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  JEFFERSON...ORWELL...ANDOVER...HARTSGROVE...ROAMING SHORES...
  PIERPONT...CHERRY VALLEY AND ROCK CREEK.

LAT...LON 4182 8052 4150 8052 4150 8100 4172 8100

$$

JAMISON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 2:07 PM EDTSpecial Weather StatementCLEAshtabula38 min
Aug 11, 2:26 PM EDTAreal Flood AdvisoryCLEAshtabula109 min
Aug 11, 2:59 PM EDTSpecial Weather StatementCLEHuron46 min
Aug 11, 3:11 PM EDTSpecial Marine WarningCLE64 min
Aug 11, 3:17 PM EDTAreal Flood AdvisoryCLEMahoning, Trumbull118 min
Aug 11, 3:26 PM EDTSpecial Weather StatementCLEWood34 min
Aug 11, 3:47 PM EDTSpecial Weather StatementCLELucas43 min
Aug 11, 3:50 PM EDTSpecial Weather StatementCLEHancock40 min
Aug 11, 3:56 PM EDTSevere Thunderstorm WarningCLEHancock, Seneca, Wyandot49 min
Aug 11, 4:20 PM EDTSpecial Marine WarningCLE55 min
Aug 11, 4:22 PM EDTSpecial Weather StatementCLELorain53 min
Aug 11, 4:30 PM EDTSevere Thunderstorm WarningCLECuyahoga45 min
Aug 11, 5:12 PM EDTSpecial Weather StatementCLECuyahoga, Geauga, Lake48 min
Aug 11, 5:58 PM EDTSpecial Weather StatementCLEGeauga62 min
Aug 11, 6:21 PM EDTSevere Thunderstorm WarningCLEAshtabula23 min

Nearby

Flash Flood Warnings in Ohio, 2016Every flash flood warning in 2016

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.