Alert archive / Ohio / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 891

August 26, 20034 states

The Storm Prediction Center issued this severe thunderstorm watch at Aug 26, 2003, 9:10 AM EDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Aug 26, 2003, 9:10 AM EDT (13:10 UTC)
Expired
Aug 26, 2003, 2:00 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
All 66 counties

Monroe County, MI, Allegany County, NY, Cattaraugus County, NY, Chautauqua County, NY, Steuben County, NY, Allen County, OH, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Columbiana County, OH, Crawford County, OH, Cuyahoga County, OH, Defiance County, OH, Erie County, OH, Fulton County, OH, Geauga County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Holmes County, OH, Huron County, OH, Lake County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Portage County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Van Wert County, OH, Wayne County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Forest County, PA, Jefferson County, PA, Lawrence County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Potter County, PA, Tioga County, PA, Venango County, PA, Warren County, PA

The radar

The Cleveland radar (KCLE), 17 km from the middle of the area, began a volume at 13:09 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.

Warnings issued inside it

15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 26, 9:18 AM EDTSevere Thunderstorm WarningPBZVenango57 min
Aug 26, 9:26 AM EDTFlash Flood WarningPBZClarion3 hr
Aug 26, 10:00 AM EDTSevere Thunderstorm WarningCLECrawford, Erie60 min
Aug 26, 10:47 AM EDTSevere Thunderstorm WarningIWXVan Wert43 min
Aug 26, 11:20 AM EDTSevere Thunderstorm WarningCTPWarren55 min
Aug 26, 11:31 AM EDTSevere Thunderstorm WarningPBZVenango59 min
Aug 26, 11:32 AM EDTSevere Thunderstorm WarningIWXVan Wert58 min
Aug 26, 11:40 AM EDTSevere Thunderstorm WarningIWXAllen65 min
Aug 26, 11:47 AM EDTFlash Flood WarningPBZVenango3 hr
Aug 26, 11:53 AM EDTSevere Thunderstorm WarningCLEMahoning52 min
Aug 26, 12:16 PM EDTSevere Thunderstorm WarningPBZLawrence59 min
Aug 26, 12:36 PM EDTSevere Thunderstorm WarningPBZButler54 min
Aug 26, 12:44 PM EDTFlash Flood WarningPBZButler3 hr
Aug 26, 1:13 PM EDTSevere Thunderstorm WarningPBZArmstrong, Indiana62 min
Aug 26, 1:50 PM EDTFlash Flood WarningPBZLawrence3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 1.2 hours before the alert went out and 179 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 2003-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 390 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2003-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
390 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
1045 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 11:02 PM EDTMesoscale DiscussionSPCGogebic58 min
Aug 26, 12:27 AM EDTMesoscale DiscussionSPCMonroe, Wayne63 min
Aug 26, 2:35 AM EDTMesoscale DiscussionSPCClare, Gladwin, Isabella, Lake, Mecosta, Midland and 3 more85 min
Aug 26, 3:49 AM EDTMesoscale DiscussionSPCAllegan, Barry, Branch, Calhoun, Cass, Clinton and 12 more116 min
Aug 26, 5:41 AM EDTMesoscale DiscussionSPCAntrim, Cheboygan, Crawford, Emmet, Montmorency, Oscoda and 1 more94 min
Aug 26, 6:00 AM EDTSevere Thunderstorm WatchSPCAlpena, Antrim, Charlevoix, Cheboygan, Crawford, Emmet and 7 more4 hr
Aug 26, 7:47 AM EDTMesoscale DiscussionSPCAlpena, Crawford, Montmorency, Oscoda, Presque Isle58 min
Aug 26, 2:15 PM EDTSevere Thunderstorm WatchSPCBerrien, Branch, Cass, Saint Joseph4 hr
Aug 26, 8:30 AM EDTMesoscale DiscussionSPCAllegany, Cattaraugus, Chautauqua, Steuben, Wyoming2 hr
Aug 26, 11:08 AM EDTMesoscale DiscussionSPCAshland, Athens, Auglaize, Belmont, Carroll, Champaign and 32 more2 hr
Aug 26, 1:05 PM EDTSevere Thunderstorm WatchSPCAthens, Auglaize, Belmont, Butler, Carroll, Champaign and 39 more5 hr
Aug 26, 2:19 PM EDTMesoscale DiscussionSPCMonroe, Noble116 min
Aug 26, 3:46 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Belmont, Carroll, Champaign and 37 more119 min
Aug 26, 4:25 PM EDTSevere Thunderstorm WatchSPCAllen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 39 more6 hr
Aug 26, 6:18 PM EDTMesoscale DiscussionSPCAllen, Ashland, Auglaize, Belmont, Carroll, Columbiana and 35 more57 min
Aug 26, 7:55 PM EDTMesoscale DiscussionSPCAshland, Belmont, Carroll, Columbiana, Coshocton, Delaware and 21 more65 min

Nearby

Severe Thunderstorm Watches in Ohio, 2003Severe Thunderstorm Watches in Pennsylvania, 2003Severe Thunderstorm Watches in New York, 2003Every severe thunderstorm watch in 2003

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.