Alert archive / Ohio / Areal Flood Warnings in 2012

Areal Flood Warning 9, NWS Cleveland, OH

May 7, 2012Portage County, Summit County, Ohio

NWS Cleveland, OH issued this areal flood warning at May 7, 2012, 10:37 PM EDT for Portage County, Summit County, Ohio. It was in force for 6 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: May 7, 2012, 10:37 PM EDT (02:37 UTC)
Expired: May 8, 2012, 4:30 AM EDT
In force: 6 hr
Issued by: NWS Cleveland, OH
Area: Storm-based polygon
Flood severity: None

Counties Portage County, OH, Summit County, OH

The radar

The Cleveland radar (KCLE), 46 km from the middle of the area, began a volume at 02:37 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, 2.6 hours before the alert went out and 141 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: 920 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1102 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

606 
WGUS41 KCLE 080237
FLWCLE

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
1037 PM EDT MON MAY 7 2012

OHC133-153-080830-
/O.NEW.KCLE.FA.W.0009.120508T0237Z-120508T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PORTAGE OH-SUMMIT OH-
1037 PM EDT MON MAY 7 2012

THE NATIONAL WEATHER SERVICE CLEVELAND HAS ISSUED A

* FLOOD WARNING FOR URBAN AREAS AND SMALL STREAMS IN...
  PORTAGE COUNTY...
  SUMMIT COUNTY...

* UNTIL 430 AM EDT...

* AT 1033 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAIN FALLING OVER THE WARNING AREA. IN
  ADDITION...THUNDERSTORMS WITH HEAVY RAIN MOVED THROUGH THE AREA
  EARLIER IN THE EVENING. THIS RAINFALL HAS BEEN HEAVY ENOUGH TO
  PRODUCE FLOODING.  LAW ENFORCEMENT IN THE AREA REPORTED SEVERAL
  COUNTY ROADS COVERED WITH WATER IN LOW LYING AREAS.

* SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE AKRON AND
  RAVENNA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. MOST FLOODING DEATHS OCCUR IN AUTOMOBILES. TURN AROUND DONT
DROWN!

&&

LAT...LON 4092 8165 4098 8165 4099 8169 4127 8168
      4128 8156 4133 8159 4135 8159 4135 8101
      4099 8100 4099 8141 4091 8143

$$

KING

1 follow-up statement

708 
WGUS81 KCLE 080836
FLSCLE

FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
436 AM EDT TUE MAY 8 2012

OHC133-153-080835-
/O.EXP.KCLE.FA.W.0009.000000T0000Z-120508T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PORTAGE OH-SUMMIT OH-
436 AM EDT TUE MAY 8 2012

...THE FLOOD WARNING THAT WAS IN EFFECT FOR SUMMIT AND PORTAGE
COUNTIES HAS BEEN ALLOWED TO EXPIRE...

FLOODING HAS SUBSIDED AND NO NEW FLOODING IS EXPECTED.  SOME PONDING 
OF WATER IN LOW LYING AREAS AND ON ROADWAYS IS LIKELY THE NEXT FEW 
HOURS. 

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CLEVELAND.

LAT...LON 4092 8165 4098 8165 4099 8169 4127 8168
      4128 8156 4133 8159 4135 8159 4135 8101
      4099 8100 4099 8141 4091 8143

$$

KUBINA

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this areal flood warning went out at May 7, 10:04 PM EDT, 33 minutes earlier.

Area forecast discussion, May 7, 10:04 PM EDT, 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
1004 PM EDT MON MAY 7 2012

.SYNOPSIS...
LOW PRESSURE OVER INDIANA WILL CROSS LAKE ERIE TONIGHT AND MOVE
INTO QUEBEC ON TUESDAY. THE TRAILING COLD FRONT WILL MOVE EAST OF
THE AREA TUESDAY MORNING. A TOUGH ALOFT AND A COUPLE OF SURFACE
TROUGHS WILL CROSS THE AREA WEDNESDAY INTO THURSDAY. HIGH PRESSURE
WILL BUILD IN FROM THE WEST LATER THURSDAY AND FRIDAY.

&&

.NEAR TERM /UNTIL 6 AM TUESDAY MORNING/...
UPDATED GRIDS BASED ON RADAR WITH HIGHEST POPS OF COURSE EAST AND
SOUTH. DID KEEP LOW CHANCE POPS NORTHWEST. COULD SEE A FEW SHOWERS
THERE BUT FOR THE MOST PART PRECIP HAS ENDED THERE. DID KEEP
THUNDER EAST THROUGH AT LEAST THE FIRST HALF OF THE NIGHT ALTHOUGH
LIGHTNING MOSTLY OUT OF THE ANVIL AS MOST NEW CONVECTION IS EAST
OF THE AREA.

PREVIOUS...THE FRONT AND WEAK SURFACE LOW WILL SLOWLY MOVE ACROSS
THE AREA OVERNIGHT. THE SHOWERS AND STORMS SHOULD FILL IN
OVERNIGHT AS THE SURFACE LOW/FRONT BEGIN TO INTERACT WITH THE
APPROACHING TROUGH AND INCREASING DIVERGENCE ALOFT. WE WILL HAVE
TO WATCH THE TRIPLE POINT AS IT MOVES ACROSS THE AREA FOR ENHANCED
LOW LEVEL SHEAR AND STRONGER STORMS. EVENTUALLY THE LOW WILL
DEEPEN LATER TONIGHT AND TUESDAY AS IT INTERACTS WITH TROUGH
ALOFT. I THINK THE WIND WILL SHIFT BACK FROM THE SOUTH/SOUTHWEST
JUST ABOUT EVERYWHERE THIS EVENING EXCEPT FOR PERHAPS TOLEDO TO
PORT CLINTON. THE STORMS SHOULD HAVE THE MOST INSTABILITY FROM
ROUGHLY MARION TO AKRON TO MEADVILLE AND POINTS SOUTHEAST. THE
THREAT OF THE HEAVIEST RAIN WILL OCCUR WITH CONVECTION AND MAINLY
IN THAT SAME AREA FROM MARION TO AKRON AND MEADVILLE SOUTHEAST.
THIS AREA HAS BEEN RELATIVELY DRY THE LAST 6 WEEKS OR SO (EXCEPT
FOR LOCALIZED SPOTS) AND WILL NOT ISSUE A FLOOD WATCH BUT WILL
MENTION HEAVY DOWNPOURS AND HANDLE THUNDERSTORM FLOODING/PONDING
WITH STATEMENTS/FLOOD ADVISORIES.

RAN THE HOURLY TEMPERATURES FROM THE GFS/MAV MOS GUIDANCE AND
EXTRACTED THE LOW TONIGHT FROM THE MINIMUM TEMPERATURE BY 12Z...
GENERALLY THE UPPER 50S.

&&

.SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY NIGHT/...
THE RAIN WILL PULL OUT OF NE OH/NW PA TUESDAY MORNING. A SHOWER
COULD POP UP DURING THE AFTERNOON JUST ABOUT ANYWHERE BUT I THINK
THE ODDS OF GETTING WET ARE PRETTY SMALL AT ANY ONE SPOT (10-15%)
AND WILL NOT MENTION IT IN THE FORECAST. IT WILL NOT BE ALL THAT
COLD IN THE MORNING AND IF WE CAN GET THE SUN TO COME OUT (AND I
THINK THERE SHOULD AT LEAST BE SOME BREAKS IN THE CLOUDS) THEN
WE SHOULD SEE TEMPERATURES RECOVER TO THE LOWER 70S IN MANY AREAS.
COOLER WEDNESDAY AND THURSDAY AS THE TROUGH ALOFT ROTATES THROUGH
WITH SHOWERS JUST ABOUT ANYWHERE/ANYTIME ON WEDNESDAY AND MAINLY
ACROSS NE OH/NW PA ON THURSDAY. WILL NOT GO AS COLD AS IT COULD BE
FOR HIGHS WEDNESDAY AND THURSDAY SINCE WE ONLY NEED A FEW HOURS OF
DRY WEATHER AND A FEW PEAKS OF SUNSHINE TO SNEAK INTO THE 60S THIS
TIME OF YEAR...BUT PLACES THAT STAY CLOUDY/SHOWERY WILL HOLD IN THE
50S. STILL WATCHING FOR THE THREAT OF FROST LATE THURSDAY
NIGHT/EARLY FRIDAY MORNING AS THE SURFACE HIGH BUILDS IN AND WINDS
LIGHTEN UP.

&&

.LONG TERM /FRIDAY THROUGH MONDAY/...
SURFACE HIGH PRESSURE AND BUILDING UPPER LEVEL RIDGE WILL BE OVER
THE AREA ON FRIDAY. TEMPERATURES ACROSS THE EASTERN PORTION OF THE
FORECAST AREA WILL BE INFLUENCED BY LIGHT NORTHERLY FLOW OFF THE
LAKE...KEEPING TEMPERATURES JUST BELOW NORMAL IN THE LOW
60S(POSSIBLY STRUGGLING TO REACH 60 NEAR THE LAKESHORE).

AFTER THAT WE TURN OUR ATTENTION TO THE UPPER LEVEL TROUGH THAT WILL
SLOWLY PUSH SOUTHEAST ACROSS THE UPPER GREAT LAKES FROM LATE
SATURDAY INTO MONDAY. RETURN FLOW SHOULD INCREASE AHEAD OF THIS
TROUGH ON SATURDAY HELPING TEMPERATURES TO RECOVER TO NEAR 70. THE
GFS HAS BEEN A FAST OUTLIER WITH THE SPEED OF THE FRONT ON SATURDAY
NIGHT...WHILE THE ECMWF/GEM SHOW THE FRONT STALLING AS IT APPROACHES
OHIO. HAVE BACKED OFF ON THE TIMING OF ANY SHOWERS ASSOCIATED WITH
THE FRONT...REMOVING CHANCES OF RAIN FROM SATURDAY AFTERNOON WITH
CONCERNS THAT MOISTURE WILL BE A LIMITING FACTOR FOR SHOWERS...EVEN
AS IT SLOWLY SETTLES SOUTH ON SUNDAY.

&&

.AVIATION /02Z TUESDAY THROUGH SATURDAY/...
LOW PRESSURE NEAR CMH WILL CONTINUE TRACKING ENE TONIGHT ALONG A
FRONTAL BOUNDARY. SHOWERS AND THUNDERSTORMS WILL PERSIST ACROSS
THE REGION INTO THE OVERNIGHT HOURS. SITES SUCH AS TOL AND ERI
WILL HAVE LEAST CHANGES OF TS IMPACTS...WHEREAS SOUTHERN SITES
FROM YNG-CAK-MFD-FDY HAVE ALREADY BEEN IMPACTED BY TSRA THIS
EVENING OR WILL BE THROUGH 03Z. SHRA WITH VCTS ESPECIALLY FOR
SOUTHERN SITES WILL PERSIST THROUGH 06-08Z.

WITH THE FRONT SAGGING SOUTH OF THE AREA ALL GUIDANCE INDICATING
MVFR TO EVEN IFR BUILDING IN ACROSS SITES LATE OVERNIGHT AND TUE
MORNING...WITH ONLY SLOW IMPROVEMENT THROUGH 15-17Z. WENT WITH VFR
CONDITIONS ACROSS MOST SITES MID-LATE AFTERNOON.

.OUTLOOK...NON-VFR POSSIBLE LATE WEDNESDAY BEHIND A COLD FRONT.

&&

.MARINE...
WILL STILL HAVE TO WAIT TO SEE IF WEST WINDS BEHIND THE LOW WILL
COME UP ENOUGH ON TUE TO PRODUCE SCA CONDITIONS. RIGHT NOW IT
CONTINUES TO LOOK LIKE NEAR SCA CONDITIONS BUT JUST A LITTLE MORE
WIND CAN PUSH AVERAGE WAVES ON THE EAST HALF TO THE 4 FOOT THRESHOLD.

WINDS SHOULD TURN NW WITH A SECONDARY COLD FRONT FOR WED AND AND
INCREASE TO 10 TO 20 KNOTS WHICH LOOK TO KICK WAVES TO MARGINAL SCA
CONDITIONS. HIGH PRESSURE MOVES OVER THE LAKE BY THU NIGHT TO
DIMINISH THE WINDS THEN THE HIGH WEAKENS BUT LINGERS NEAR THE LAKE
THROUGH SAT SO FAIRLY LIGHT WINDS SHOULD CONTINUE.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...NONE.
PA...NONE.
MARINE...NONE.

&&

SYNOPSIS...KOSARIK
NEAR TERM...TK/KOSARIK
SHORT TERM...KOSARIK
LONG TERM...KEC
AVIATION...ABE
MARINE...ADAMS

Hazardous weather outlook, May 7, 3:36 PM EDT, 7 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
336 PM EDT MON MAY 7 2012

OHZ003-006>014-017>023-027>033-036>038-047-089-PAZ001>003-081945-
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
ASHTABULA INLAND-HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
336 PM EDT MON MAY 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
OHIO...NORTHEAST OHIO...NORTHWEST OHIO AND NORTHWEST PENNSYLVANIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THE STORM PREDICTION CENTER HAS INDICATED THAT THERE IS SLIGHT
RISK FOR SEVERE WEATHER THIS EVENING INTO TONIGHT. THE MAIN SEVERE
WEATHER THREAT WILL OCCUR FROM NEAR THE INTERSTATE 71 CORRIDOR AND
POINTS EAST. DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL WOULD BE
THE MOST LIKELY SEVERE WEATHER THREAT...BUT AN ISOLATED TORNADO
CANNOT BE RULED OUT.

LOCALLY HEAVY RAINFALL IS ALSO LIKELY WITH SOME OF THE
THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

FROST IS POSSIBLE LATE THURSDAY NIGHT AND EARLY FRIDAY
MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

LEZ061-142>149-162>169-081945-
LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY-
MAUMEE BAY TO RENO BEACH OH-RENO BEACH TO THE ISLANDS OH-
THE ISLANDS TO VERMILION OH-VERMILION TO AVON POINT OH-
AVON POINT TO WILLOWICK OH-WILLOWICK TO GENEVA-ON-THE LAKE OH-GENEVA-
ON-THE-LAKE TO CONNEAUT OH-CONNEAUT OH TO RIPLEY NY-
LAKE ERIE OPEN WATERS FROM MAUMEE BAY TO RENO BEACH-
LAKE ERIE OPEN WATERS FROM RENO BEACH TO THE ISLANDS-
LAKE ERIE OPEN WATERS FROM THE ISLANDS TO VERMILION-
LAKE ERIE OPEN WATERS FROM VERMILION TO AVON POINT-
LAKE ERIE OPEN WATERS FROM AVON POINT TO WILLOWICK-
LAKE ERIE OPEN WATERS FROM WILLOWICK TO GENEVA-ON-THE-LAKE-
LAKE ERIE OPEN WATERS FROM GENEVA-ON-THE-LAKE TO CONNEAUT-
LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY-
336 PM EDT MON MAY 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED.

In the hours before

Local storm report, May 7, 8:49 PM EDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
849 PM EDT MON MAY 07 2012

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

0827 PM     HAIL             HUBBARD                 41.16N 80.57W
05/07/2012  E1.00 INCH       TRUMBULL           OH   PUBLIC

&&

YEAGER

Local storm report, May 7, 8:51 PM EDT, 1 hour 46 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE CLEVELAND OH
851 PM EDT MON MAY 07 2012

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

0827 PM     HAIL             7 E VIENNA              41.26N 80.54W
05/07/2012  E0.75 INCH       TRUMBULL           OH   PUBLIC

&&

YEAGER

Local storm report, May 7, 8:52 PM EDT, 1 hour 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
852 PM EDT MON MAY 07 2012

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

0847 PM     HAIL             2 W MASSILLON           40.79N 81.56W
05/07/2012  E0.75 INCH       STARK              OH   PUBLIC

&&

YEAGER

Local storm report, May 7, 9:03 PM EDT, 1 hour 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
903 PM EDT MON MAY 07 2012

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

0838 PM     HAIL             4 N YOUNGSTOWN          41.16N 80.65W
05/07/2012  E1.00 INCH       TRUMBULL           OH   PUBLIC

&&

YEAGER

Local storm report, May 7, 9:04 PM EDT, 1 hour 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
904 PM EDT MON MAY 07 2012

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

0823 PM     HAIL             HUBBARD                 41.16N 80.57W
05/07/2012  E1.25 INCH       TRUMBULL           OH   PUBLIC

&&

YEAGER

Local storm report, May 7, 9:06 PM EDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CLEVELAND OH
906 PM EDT MON MAY 07 2012

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

0829 PM     HAIL             VIENNA                  41.26N 80.68W
05/07/2012  E1.00 INCH       TRUMBULL           OH   PUBLIC

&&

YEAGER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 8:16 PM EDT	Areal Flood Advisory	CLE	Ashland, Knox, Medina, Morrow, Richland, Wayne	6 hr
May 7, 8:25 PM EDT	Severe Thunderstorm Warning	CLE	Trumbull	35 min
May 7, 8:33 PM EDT	Areal Flood Warning	CLE	Trumbull	6 hr
May 7, 9:25 PM EDT	River Flood Warning	CLE	Ottawa, Sandusky, Wood	20 hr
May 8, 11:23 AM EDT	River Flood Warning	CLE	Marion	32 hr
May 8, 6:40 PM EDT	River Flood Warning	CLE	Trumbull	10 hr

Nearby

Areal Flood Warnings in Ohio, 2012 Every areal flood warning 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.