Alert archive / Ohio / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Cleveland, OH

April 16, 1993Mahoning County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 16, 1993, 12:45 AM EDT for Mahoning County, Ohio. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
Apr 16, 1993, 12:45 AM EDT (04:45 UTC)
Expired
Apr 16, 1993, 1:15 AM EDT
In force
30 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Mahoning County, OH

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 4.8 hours before the alert went out and 88 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 00:00Z on 1993-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Pittsburgh, PA at 00:00Z on 1993-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 229 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2593 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
229 m²/s²
0-3 km storm-relative helicity
370 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.

000 
TTAA00 KYNG 160451 COR
SVRYNG
OHC099-PAC073-160530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE YOUNGSTOWN OH
1245 AM EDT FRI APR 16 1993

THE NATIONAL WEATHER SERVICE IN YOUNGSTOWN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHEAST OHIO

   ...MAHONING COUNTY


IN NORTHWEST PENNSYLVANIA

   ...LAWRENCE COUNTY

AT 1240 AM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
POSSIBLE SEVERE THUNDERSTORMS FROM YOUNGSTOWN SOUTH TO EAST LIVERPOOL.
THESE STORMS WERE MOVING TO THE NORTHEAST AT 50 MPH AND WILL REACH NEW
CASTLE PENNSYLVANIA BY 100 AM.


THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

MITCHELL
$$
...CORRECTED WORDING IN LINE OF THUNDERSTORMS...

What forecasters said that day

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

In the hours before

Special weather statement, Apr 15, 8:01 PM EDT, 4 hours 44 minutes before
OHZALL-160100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
758 PM EDT THU APR 15 1993

A TORNADO WATCH IS IN EFFECT FOR MUCH OF THE WESTERN THIRD OF OHIO UNTIL
11 PM EDT TONIGHT.

SOME CITIES THAT ARE INCLUDED IN THE WATCH ARE CINCINNATI...DAYTON...
FINDLAY...LIMA...SPRINGFIELD AND TOLEDO.

AT 745 PM EDT THE LEADING EDGE OF A LINE OF SHOWERS AND STRONG
THUNDERSTORMS EXTENDED FROM NEAR TOLEDO TO FINDLAY TO LIMA TO DAYTON TO
NEAR CINCINNATI. THE LINE WAS MOVING TO THE NORTHEAST AROUND 30 MPH.

THE STRONGEST STORMS IN THIS LINE ARE CAPABLE OF PRODUCING FREQUENT
LIGHTNING...HAIL...VERY HEAVY RAIN AND WIND GUSTS TO 55 MPH. FLASH
FLOODING WAS REPORTED AROUND 720 PM IN ROSS...WHICH IS LOCATED ABOUT 16
MILES NORTH OF CINCINNATI. IN ADDITION...ONE-QUARTER INCH HAIL WAS
REPORTED IN DAYTON AROUND 740 PM.

OTHER SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER THE REMAINDER OF THE
STATE. THIS PRECIPITATION WAS MOVING TO THE NORTH AROUND 30 MPH.
THESE SHOWERS AND THUNDERSTORMS ARE CAPABLE OF FREQUENT LIGHTNING...
HEAVY RAIN AND GUSTY WINDS.

STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA FOR THE INFORMATION ON
THIS POTENTIALLY DANGEROUS WEATHER SITUATION.

HOVIS
Special weather statement, Apr 15, 10:09 PM EDT, 2 hours 36 minutes before
OHZALL-160400-

SPECIAL WEATHER STATEMENT AND EVENING OHIO WEATHER STORY
NATIONAL WEATHER SERVICE CLEVELAND OH
1005 PM EDT THU APR 15 1993

...THE TORNADO WATCH FOR PORTIONS OF WESTERN OHIO THIS EVENING HAS BEEN
CANCELLED...

...A FLOOD WATCH WAS IN EFFECT FOR THE SOUTHWEST QUARTER OF OHIO
OVERNIGHT...

STORMY WEATHER AFFECTED THE WESTERN THIRD OF OHIO EARLY THIS EVENING
PROMPTING A TORNADO WATCH TO BE ISSUED. AT 10PM THE TORNADO WATCH FOR
PORTIONS OF SOUTHWEST OHIO WAS CANCELLED.

AFTER RECORD-BREAKING WARMTH PUSHED INTO OHIO TODAY BEHIND A WARM FRONT
STRONG AND ISOLATED SEVERE THUNDERSTORMS BROKE OUT AHEAD OF A COLD FRONT
EARLIER THIS EVENING. SOME OF THESE SEVERE STORMS PRODUCED LARGE HAIL
AND DAMAGING WINDS...CAUSING DOWNED TREES AND POWER LINES IN SOUTHWEST
OHIO...SPECIFICALLY BUTLER AND HAMILTON COUNTIES.

SOME OF THE STORMS HAD PRODUCED LOCALIZED RAINFALL IN THE ONE TO 2 INCH
RANGE...CAUSING SOME FLASH FLOODING ALSO IN BUTLER COUNTY. WITH RAIN
COVERING MUCH OF THE SOUTHWEST...ADDITIONAL RAINFALL UP TO AN INCH IS
POSSIBLE OVERNIGHT. WITH THE GROUND SATURATED AND THE RAIN CAUSING
RUNOFF...MINOR FLOODING WILL BE POSSIBLE IN THE SOUTHWEST QUARTER OF THE
STATE UNTIL THE RAIN ENDS WITH THE PASSAGE OF A COLD FRONT EARLY FRIDAY.

AS A RESULT OF THESE STORMS A FLOOD WATCH WAS IN EFFECT FOR THE
SOUTHWEST QUARTER OF THE STATE TIL FRIDAY MORNING.

RECORDS HIGHS WERE TIED AT YOUNGSTOWN AND AKRON-CANTON THIS AFTERNOON...
AKRON-CANTON AT 79 DEGREES AND YOUNGSTOWN AT 81 DEGREE. OLD RECORDS FOR
BOTH LOCATIONS WERE SET IN 1976.

THE MOVEMENT OF THE COLD FRONT WILL CONTINUE TO INFLUENCE THE OHIO
WEATHER FOR THE NEXT COUPLE OF DAYS. BRISK WINDS AHEAD OF THE FRONT WILL
PRECEDE AND THEN ACCOMPANY SOME SHOWERS AND THUNDERSTORMS TONIGHT.

THE FRONT WILL MOVE THROUGH MOST OF THE WESTERN HALF OF OHIO BY DAYBREAK
AND SHOWERS AND THUNDERSTORMS WILL BE QUITE NUMEROUS WITH IT. SOME OF
THEM COULD BE ACCOMPANIED BY HIGH WINDS...HAIL OR HEAVY RAINS IN
SOUTHERN OHIO. TEMPERATURES WILL DIP DOWN INTO THE 40'S IN WESTERN OHIO
AND THE MID 50'S IN EASTERN OHIO OVERNIGHT.

THE COLDER WEATHER WILL STAY AROUND FOR THE WEEKEND WITH HIGHS ONLY
EXPECTED TO REACH THE 40'S TO LOWER 50'S.

ON THE EVENING WEATHER MAP...A STRONG LOW PRESSURE AREA CENTERED OVER
SOUTHERN LAKE MICHIGAN EXTENDED A WARM FRONT ACROSS SOUTHERN MICHIGAN
THEN CURVED DOWN ACROSS PENNSYLVANIA. A COLD FRONT CURVED SOUTH FROM THE
LOW ACROSS TENNESSEE AND ALABAMA.

THE LOW WILL TRACK NORTH INTO MICHIGAN BY FRIDAY MORNING. THE WARM
FRONT WILL CONTINUE TO PUSH NORTH TOWARD NEW ENGLAND WHILE THE COLD
FRONT CROSSES OHIO AND REACHES THE MID ATLANTIC COAST BY FRIDAY EVENING.
A TROUGH OF LOW PRESSURE WILL FOLLOW THE FRONT ACROSS OHIO FRIDAY NIGHT.
WEAK HIGH PRESSURE WILL THEN BUILD INTO OHIO FROM THE SOUTHWEST DURING
SATURDAY.

SEM
Special weather statement, Apr 16, 12:40 AM EDT, 5 minutes before
OHZ002-003-160730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
1240 AM EDT FRI APR 16 1993

LOCALLY HEAVY RAIN AND GUSTY WINDS WERE AFFECTING THE LAKESHORE COUNTIES
AND NORTH CENTRAL OHIO EARLY FRIDAY MORNING.

AT 1230 AM EDT...RADAR SHOWED A LARGE AREA OF RAIN WITH EMBEDDED
THUNDERSTORMS OVER MOST OF EASTERN OHIO. THUNDERSTORMS WITH HEAVY RAIN
WERE LOCATED OVER THE EASTERN SUBURBS OF CLEVELAND AND NEAR GENEVA IN
ASHTABULA COUNTY. THE STORMS WERE MOVING NORTHEAST AROUND 40 MPH.

HEAVY RAIN AND WIND GUSTS UP TO 50 MPH WILL OCCUR WITH THE
THUNDERSTORMS. SOME STREET FLOODING IS LIKELY DUE TO THE HEAVY RAIN AND
SOME SMALL CREEKS MAY OVERFLOW.

THE RAIN AREA WAS MOVING RAPIDLY NORTHEAST AND SHOULD END OVER NORTH
CENTRAL OHIO AND THE CENTRAL LAKESHORE COUNTIES BY 2 AM AND OVER THE
EAST LAKESHORE BY 330 AM EDT. BOATERS ON LAKE ERIE SHOULD SEEK SAFE
HARBOR UNTIL THE STORMS PASS. LISTEN TO NOAA WEATHER RADIO FOR UPDATES.

GABRIC

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 12:27 AM EDTSevere Thunderstorm WarningCLEColumbiana48 min
Apr 16, 12:36 AM EDTTornado WarningCLEStark69 min
Apr 16, 12:58 AM EDTSevere Thunderstorm WarningCLETrumbull47 min

Nearby

Severe Thunderstorm Warnings in Ohio, 1993Every severe thunderstorm warning in 1993

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.