Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 20, NWS Cleveland, OH

August 2, 2014Lake County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 2, 2014, 2:09 PM EDT for Lake County, Ohio. It was in force for 4 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 2, 2014, 2:09 PM EDT (18:09 UTC)
Expired
Aug 2, 2014, 6:00 PM EDT
In force
4 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Lake County, OH

The radar

The Cleveland radar (KCLE), 63 km from the middle of the area, began a volume at 18:10 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, 6.2 hours before the alert went out and 172 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 2014-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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 2014-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
93 J/kg
Mixed-layer CIN
-106 J/kg
Mixed-layer LCL
1182 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

989 
WGUS51 KCLE 021809
FFWCLE
OHC085-022200-
/O.NEW.KCLE.FF.W.0020.140802T1809Z-140802T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
209 PM EDT SAT AUG 2 2014

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAKE COUNTY IN NORTHEAST OHIO...

* UNTIL 600 PM EDT.

* AT 206 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL AMOUNTS UP TO 2 INCHES HAVE OCCURRED          
  WITH ADDITIONAL AMOUNTS OF 1 TO 2 INCHES POSSIBLE. 

* LOCATIONS IMPACTED INCLUDE...
  PAINESVILLE...
  WILLOUGHBY...
  PERRY...
  MENTOR...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 4172 8100 4171 8110 4164 8111 4164 8129
      4157 8130 4157 8149 4164 8149 4174 8135
      4177 8129 4178 8123 4185 8106 4186 8100

$$
2 follow-up statements
917 
WGUS71 KCLE 021944
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
344 PM EDT SAT AUG 2 2014

OHC085-022200-
/O.CON.KCLE.FF.W.0020.000000T0000Z-140802T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAKE OH-
344 PM EDT SAT AUG 2 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LAKE COUNTY UNTIL 600 PM
EDT...

AT 336 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT ONLY SOME LIGHT SHOWERS REMAINED ACROSS PORTIONS OF LAKE 
COUNTY. RADAR ESTIMATES AND RAINFALL MEASUREMENTS ACROSS THE COUNTY 
INDICATE THAT 2 TO LOCALLY 3 INCHES OF RAIN FELL ACROSS THE COUNTY 
IN ABOUT AN HOUR. THERE WERE REPORTS OF FLOODING IN A FEW LOCATIONS 
ACROSS THE COUNTY...MAINLY FLOODING OF UNDERPASSES.  

THE WATER CONTINUES TO RECEDE AND SHOULD FLOW INTO AREA CREEKS AND 
RIVERS THROUGH 6 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. TURN AROUND...DON'T DROWN!

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 4172 8100 4171 8110 4164 8111 4164 8129
      4157 8130 4157 8149 4164 8149 4174 8135
      4177 8129 4178 8123 4185 8106 4186 8100

$$
388 
WGUS71 KCLE 022200
FFSCLE

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
600 PM EDT SAT AUG 2 2014

OHC085-022210-
/O.EXP.KCLE.FF.W.0020.000000T0000Z-140802T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAKE OH-
600 PM EDT SAT AUG 2 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR LAKE COUNTY HAS
EXPIRED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 4172 8100 4171 8110 4164 8111 4164 8129
      4157 8130 4157 8149 4164 8149 4174 8135
      4177 8129 4178 8123 4185 8106 4186 8100

$$

OUDEMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 6:09 AM EDTAreal Flood AdvisoryCLEHancock, Wood4 hr
Aug 2, 10:53 AM EDTSpecial Marine WarningCLE82 min
Aug 2, 11:45 AM EDTSpecial Marine WarningCLE90 min
Aug 2, 1:46 PM EDTSpecial Marine WarningCLE89 min
Aug 2, 1:58 PM EDTAreal Flood AdvisoryCLELake3 hr
Aug 2, 2:25 PM EDTFlash Flood WarningCLETrumbull5 hr
Aug 2, 2:50 PM EDTAreal Flood AdvisoryCLEAshtabula4 hr

Nearby

Flash Flood Warnings in Ohio, 2014Every flash flood warning 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.