Alert archive / Ohio / Flash Flood Warnings in 2014

Flash Flood Warning 21, NWS Cleveland, OH

August 2, 2014Trumbull County, Ohio

NWS Cleveland, OH issued this flash flood warning at Aug 2, 2014, 2:25 PM EDT for Trumbull County, Ohio. It was in force for 5 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, 2:25 PM EDT (18:25 UTC)
Expired
Aug 2, 2014, 7:00 PM EDT
In force
5 hr
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Flood severity
None

County Trumbull County, OH

The radar

The Cleveland radar (KCLE), 90 km from the middle of the area, began a volume at 18:28 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, 6.4 hours before the alert went out and 114 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.

903 
WGUS51 KCLE 021825
FFWCLE
OHC155-022300-
/O.NEW.KCLE.FF.W.0021.140802T1825Z-140802T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A

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

* UNTIL 700 PM EDT.

* AT 224 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  TRUMBULL COUNTY. RAINFALL OF 1 TO 3 INCHES HAVE OCCURRED SINCE 
  130 PM. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES WILL BE       
  POSSIBLE.
 
* LOCATIONS IMPACTED INCLUDE...
  WARREN...
  WEST FARMINGTON...
  NILES...
  NEWTON FALLS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.

&&

LAT...LON 4114 8099 4113 8100 4150 8101 4150 8053
      4147 8051 4114 8051

$$
2 follow-up statements
475 
WGUS71 KCLE 021951
FFSCLE

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

OHC155-022300-
/O.CON.KCLE.FF.W.0021.000000T0000Z-140802T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-
351 PM EDT SAT AUG 2 2014

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR TRUMBULL COUNTY UNTIL
700 PM EDT...

AT 350 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO 
INDICATE LIGHT SHOWERS OVER MUCH OF TRUMBULL COUNTY. THERE WERE 
STILL POCKETS OF HEAVIER RAINFALL WHICH COULD PRODUCE ANOTHER QUICK 
HALF AN INCH.

RADAR ESTIMATES AND RAINFALL REPORTS INDICATED THAT AROUND 2 INCHES 
OF RAIN FELL OVER MUCH OF SOUTHWESTERN TRUMBULL COUNTY IN UNDER 1 
HOUR. THIS COMBINED WITH RAINS FROM LAST NIGHT CAUSED SOME FLOODING 
ISSUES...MAINLY LOW LYING AREAS AND UNDERPASSES.

THE WATER CONTINUES TO RECEDE AND SHOULD FLOW INTO AREA CREEKS AND 
RIVERS THROUGH 7 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE. 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 4114 8099 4113 8100 4150 8101 4150 8053
      4147 8051 4114 8051

$$
858 
WGUS71 KCLE 022257
FFSCLE

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

OHC155-022307-
/O.EXP.KCLE.FF.W.0021.000000T0000Z-140802T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRUMBULL OH-
657 PM EDT SAT AUG 2 2014

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR TRUMBULL COUNTY
WILL BE ALLOWED TO EXPIRE AT 700 PM EDT...

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 4114 8099 4113 8100 4150 8101 4150 8053
      4147 8051 4114 8051

$$

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, 2:09 PM EDTFlash Flood WarningCLELake4 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.