Alert archive / Ohio / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 9, NWS Cleveland, OH

April 9, 2001Knox County, Morrow County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Apr 9, 2001, 3:40 PM EDT for Knox County, Morrow County, Ohio. It was in force for 65 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: Apr 9, 2001, 3:40 PM EDT (19:40 UTC)
Expired: Apr 9, 2001, 4:45 PM EDT
In force: 65 min
Issued by: NWS Cleveland, OH
Area: Whole counties

Counties Knox County, OH, Morrow County, OH

The radar

The Cleveland radar (KCLE), 123 km from the middle of the area, began a volume at 19:44 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 9, 11:00 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.7 hours before the alert went out and 153 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: 554 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 1060 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 160 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KCLE 091941
SVRCLE
OHC083-117-092045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
340 PM EDT MON APR 9 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  KNOX COUNTY IN OHIO...
  MORROW COUNTY IN OHIO...

* UNTIL 445 PM EDT

* AT 340 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTH OF MOUNT GILEAD...MOVING   EAST  
  AT 30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...
  MOUNT VERNON
  MOUNT GILEAD
  GAMBIER
  FREDERICKTOWN
  DANVILLE
  CENTERBURG

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
hWILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN CLEVELAND.

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 12:30 PM EDT	Severe Thunderstorm Warning	CLE	Trumbull	45 min
Apr 9, 2:23 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	37 min
Apr 9, 3:09 PM EDT	Tornado Warning	CLE	Stark, Wayne	51 min
Apr 9, 3:57 PM EDT	Severe Thunderstorm Warning	CLE	Stark	48 min
Apr 9, 4:16 PM EDT	Severe Thunderstorm Warning	CLE	Wayne	44 min
Apr 9, 4:27 PM EDT	Tornado Warning	CLE	Wayne	33 min
Apr 9, 4:42 PM EDT	Severe Thunderstorm Warning	CLE	Stark	48 min
Apr 9, 4:52 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	38 min
Apr 9, 4:57 PM EDT	Severe Thunderstorm Warning	CLE	Wayne	33 min
Apr 9, 5:11 PM EDT	Severe Thunderstorm Warning	CLE	Knox	49 min

Nearby

Severe Thunderstorm Warnings in Ohio, 2001 Every severe thunderstorm warning in 2001

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.