Alert archive / Ohio / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 312, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Jul 21, 1998, 9:43 AM EDT for Medina County, Ohio. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 21, 1998, 9:43 AM EDT (13:43 UTC)
- Expired
- Jul 21, 1998, 10:30 AM EDT
- In force
- 47 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Medina County, OH
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 21, 6:30 AM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 1.7 hours before the alert went out and 171 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.
- Mixed-layer CAPE
- 1313 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
678 WUUS1 KCLE 211342 RRA SVRCLE OHC103-211430- BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CLEVELAND OH 943 AM EDT TUE JUL 21 1998 THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MEDINA COUNTY IN NORTHEASTERN OHIO * UNTIL 1030 AM EDT * AT 944 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG TO SEVERE THUNDERSTORMS OVER NORTH CENTRAL OHIO MOVING SOUTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORMS WILL BE NEAR... HOMERVILLE LODI WESTFIELD CENTER SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS AND LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS GABRIC
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.
NWS Cleveland, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 21, 2:45 AM EDT, 6 hours 58 minutes earlier.
Area forecast discussion, Jul 21, 2:45 AM EDT, 6 hours 58 minutes before
FORECAST COORDINATION MESSAGE NATIONAL WEATHER SERVICE WILMINGTON OH 245 AM EDT TUE JUL 21 1998 FORECAST CHALLENGE...CONVECTION POTENTIAL THROUGH PERIOD. AT THE MOMENT...IR AND RADAR IMAGERY SHOWING BOW ECHO IN SOUTHERN ONTARIO AND NORTHERN OH. SYSTEM WILL STAY WELL NORTH OF CWA. KILN AND KIWX SHOWING SOME A SMALL CLUSTER OF TSRA BETWEEN FWA AND LIMA WHICH ACCORDING TO LAPS DATA IS IN AN AREA OF MOISTURE CONVERGENCE. MODELS ARE PRETTY SIMILAR WITH THE OVERALL PATTERN. BERMUDA HIGH BUILDS IN OVER MUCH OF SOUTHERN OHIO WITH A 700 MB CAP OF 9 TO 10 DEGREES THROUGH MUCH OF THE FORECAST PERIOD. THIS WILL SUPPRESS CONVECTION OVER MUCH OF FORECAST AREA...ESPECIALLY SOUTHERN 2/3. THE MAIN ACTIVITY WILL REMAIN ALONG A NEARLY STATIONARY BOUNDARY IN SOUTHERN WI/MI AND NORTHERN IL/IN/OH. THE NORTHERN JET STREAM WILL PROVIDE THE UPPER LEVEL SUPPORT. IN FACT ALL THREE MODELS SHOW THE WHOLE BOUNDARY LIGHTING UP OVERNIGHT TONIGHT. THE BERMUDA HIGH BEGINS TO SLIDE SOUTHWARD ON WEDNESDAY AS STATIONARY BOUNDARY DRIFTS SOUTH INTO NORTHERN AND CENTRAL IL/IN/OH ALONG WITH ASSOCIATED UPPER LEVEL SUPPORT. FWC GUIDANCE HAS PRETTY GOOD HANDLE ON POPS AND TEMPS THROUGH PERIOD. THINK SUMMER TIME POP (30%) NORTH OF DAY AND CMH WOULD BE REASONABLE FOR TODAY AND ISOLATED OR NO MENTION REST OF CWA. DAY 094/072 090/072 085 114 CMH 094/073 091/071 084 214 CVG 095/073 091/071 084 114 PHM 095/071 092/072 087 114 TIPTON
In the hours before
Special weather statement, Jul 21, 4:03 AM EDT, 5 hours 40 minutes before
OHZ003-006>014-017>023-027>033-037-038-047-089-PAZ001>003-210415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 1202 AM EDT TUE JUL 21 1998 THE STORM PREDICTION CENTER INDICATES THAT THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHERN OHIO TODAY AND TONIGHT. SOME THUNDERSTORMS MAY DEVELOP DURING THE HEAT OF THE DAY THIS AFTERNOON WITH HIGH WINDS AND LARGE HAIL. OTHER THUNDERSTORMS WILL DEVELOP LATER TONIGHT AHEAD OF A COLD FRONT WHICH WILL PRESS SOUTHWARD FROM THE UPPER GREAT LAKES TO JUST NORTH OF LAKE ERIE BY DAYBREAK WEDNESDAY. SEVERE STORMS ARE POSSIBLE AHEAD OF THIS FRONT AS WELL. SKYWARN ACTIVATION IS POSSIBLE.
Special weather statement, Jul 21, 4:05 AM EDT, 5 hours 38 minutes before
OHZ003-006>014-017>023-027>033-037-038-047-089-PAZ001>003-211500- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CLEVELAND OH 405 AM EDT TUE JUL 21 1998 THE STORM PREDICTION CENTER INDICATES THAT THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHERN OHIO TODAY AND TONIGHT. SOME THUNDERSTORMS MAY DEVELOP DURING THE HEAT OF THE DAY THIS AFTERNOON WITH HIGH WINDS AND LARGE HAIL. OTHER THUNDERSTORMS WILL DEVELOP LATER TONIGHT AHEAD OF A COLD FRONT WHICH WILL PRESS SOUTHWARD FROM THE UPPER GREAT LAKES TO JUST NORTH OF LAKE ERIE BY DAYBREAK WEDNESDAY. SEVERE STORMS ARE POSSIBLE AHEAD OF THIS FRONT AS WELL. SKYWARN ACTIVATION IS POSSIBLE. (CORRECTED ISSUE TIME )
Special weather statement, Jul 21, 4:05 AM EDT, 5 hours 38 minutes before
OHZ003-006>014-017>023-027>033-037-038-047-089-PAZ001>003-211500- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CLEVELAND OH 405 AM EDT TUE JUL 21 1998 THE STORM PREDICTION CENTER INDICATES THAT THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS ACROSS NORTHERN OHIO TODAY AND TONIGHT. SOME THUNDERSTORMS MAY DEVELOP DURING THE HEAT OF THE DAY THIS AFTERNOON WITH HIGH WINDS AND LARGE HAIL. OTHER THUNDERSTORMS WILL DEVELOP LATER TONIGHT AHEAD OF A COLD FRONT WHICH WILL PRESS SOUTHWARD FROM THE UPPER GREAT LAKES TO JUST NORTH OF LAKE ERIE BY DAYBREAK WEDNESDAY. SEVERE STORMS ARE POSSIBLE AHEAD OF THIS FRONT AS WELL. SKYWARN ACTIVATION IS POSSIBLE. (CORRECTED ISSUE TIME )
Special weather statement, Jul 21, 9:00 AM EDT, 43 minutes before
LEZ530-OHZ003-006>014-017>023-027>033-036>038-047-089-520>526-211355- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 900 AM EDT TUE JUL 21 1998 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL NOON FOR NORTHERN OHIO. ALSO...A SPECIAL MARINE WARNING REMAINS IN EEFECT FOR LAKE ERIE FROM MAUMEE BAY TO RIPLEY NEW YORK UNTIL ABOUT 1030 AM. AT 855 AM...DOPPLER RADAR IN CLEVELAND SHOWED STRONG THUNDERSTORMS OVER GEAUGA COUNTY MOVING INTO ASHTABULA COUNTY. ALSO...STRONG STORMS OVER OTTAWA COUNTY WERE MOVING SOUTHEAST INTO SANDUSKY AND ERIE COUNTIES. THESE STORMS WERE STILL CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH...HAIL AND FREQUENT LIGHTNING. ELSEWHERE IN NORTHERN OHIO...CLUSTERS OF THUNDERSTORMS WERE SCATTERED ACROSS THE AREA. GUSTY WINDS...BRIEF HEAVY RAIN WILL ACCOMPANY THE STORMS. IF THUNDERSTORMS APPROACH YOUR AREA...GO INSIDE A STURDY BUILDING AWAY FROM WINDOWS. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR UPDATES AND WARNINGS. GABRIC
Special weather statement, Jul 21, 9:00 AM EDT, 43 minutes before
LEZ530-OHZ003-006>014-017>023-027>033-036>038-047-089-520>526-211355- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 900 AM EDT TUE JUL 21 1998 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL NOON FOR NORTHERN OHIO. ALSO...A SPECIAL MARINE WARNING REMAINS IN EEFECT FOR LAKE ERIE FROM MAUMEE BAY TO RIPLEY NEW YORK UNTIL ABOUT 1030 AM. AT 855 AM...DOPPLER RADAR IN CLEVELAND SHOWED STRONG THUNDERSTORMS OVER GEAUGA COUNTY MOVING INTO ASHTABULA COUNTY. ALSO...STRONG STORMS OVER OTTAWA COUNTY WERE MOVING SOUTHEAST INTO SANDUSKY AND ERIE COUNTIES. THESE STORMS WERE STILL CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH...HAIL AND FREQUENT LIGHTNING. ELSEWHERE IN NORTHERN OHIO...CLUSTERS OF THUNDERSTORMS WERE SCATTERED ACROSS THE AREA. GUSTY WINDS...BRIEF HEAVY RAIN WILL ACCOMPANY THE STORMS. IF THUNDERSTORMS APPROACH YOUR AREA...GO INSIDE A STURDY BUILDING AWAY FROM WINDOWS. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR UPDATES AND WARNINGS. GABRIC
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:35 AM EDT | Severe Thunderstorm Warning | CLE | Lucas | 35 min |
| Jul 21, 6:48 AM EDT | Severe Thunderstorm Warning | CLE | Wood | 47 min |
| Jul 21, 6:57 AM EDT | Severe Thunderstorm Warning | CLE | Ottawa, Sandusky | 48 min |
| Jul 21, 7:05 AM EDT | Severe Thunderstorm Warning | CLE | Hancock, Seneca | 45 min |
| Jul 21, 7:42 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron | 48 min |
| Jul 21, 7:47 AM EDT | Severe Thunderstorm Warning | CLE | Lorain | 48 min |
| Jul 21, 7:55 AM EDT | Severe Thunderstorm Warning | CLE | Ashland, Richland | 45 min |
| Jul 21, 8:04 AM EDT | Severe Thunderstorm Warning | CLE | Crawford, Wyandot | 46 min |
| Jul 21, 8:06 AM EDT | Severe Thunderstorm Warning | CLE | Lucas | 49 min |
| Jul 21, 8:22 AM EDT | Severe Thunderstorm Warning | CLE | Cuyahoga, Lake | 48 min |
| Jul 21, 8:25 AM EDT | Severe Thunderstorm Warning | CLE | Ottawa | 50 min |
| Jul 21, 8:30 AM EDT | Severe Thunderstorm Warning | CLE | Geauga | 50 min |
| Jul 21, 9:41 AM EDT | Severe Thunderstorm Warning | CLE | Ashland, Wayne | 49 min |
| Jul 21, 7:03 PM EDT | Severe Thunderstorm Warning | CLE | Wood | 62 min |
| Jul 21, 7:05 PM EDT | Severe Thunderstorm Warning | CLE | Ottawa | 65 min |
| Jul 21, 7:33 PM EDT | Severe Thunderstorm Warning | CLE | Erie, Sandusky | 62 min |
| Jul 21, 7:46 PM EDT | Severe Thunderstorm Warning | CLE | Seneca | 64 min |
| Jul 21, 7:52 PM EDT | Severe Thunderstorm Warning | CLE | Lorain | 63 min |
| Jul 21, 7:57 PM EDT | Severe Thunderstorm Warning | CLE | Huron | 63 min |
Nearby
Severe Thunderstorm Warnings in Ohio, 1998Every severe thunderstorm warning in 1998
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.