Alert archive / Ohio / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 784
The Storm Prediction Center issued this severe thunderstorm watch at Jul 21, 2003, 6:10 AM EDT for 15 counties in Indiana; 8 counties in Kentucky; 36 counties in Ohio. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2003, 6:10 AM EDT (10:10 UTC)
- Expired
- Jul 21, 2003, 12:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 59 counties
Dearborn County, IN, Decatur County, IN, Fayette County, IN, Franklin County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Ohio County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Switzerland County, IN, Union County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Pendleton County, KY, Adams County, OH, Allen County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Highland County, OH, Holmes County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Richland County, OH, Ross County, OH, Shelby County, OH, Union County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 53 km from the middle of the area, began a volume at 10:10 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
28 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:30 AM EDT | Severe Thunderstorm Warning | IND | Delaware, Henry, Rush | 60 min |
| Jul 21, 6:38 AM EDT | Severe Thunderstorm Warning | IND | Decatur | 67 min |
| Jul 21, 6:46 AM EDT | Severe Thunderstorm Warning | IND | Randolph | 59 min |
| Jul 21, 6:49 AM EDT | Severe Thunderstorm Warning | ILN | Fayette, Franklin, Union, Wayne | 41 min |
| Jul 21, 6:50 AM EDT | Severe Thunderstorm Warning | IND | Jackson, Jennings, Lawrence | 55 min |
| Jul 21, 6:54 AM EDT | Severe Thunderstorm Warning | IWX | Jay | 36 min |
| Jul 21, 7:03 AM EDT | Severe Thunderstorm Warning | ILN | Ripley | 42 min |
| Jul 21, 7:07 AM EDT | Severe Thunderstorm Warning | ILN | Mercer | 23 min |
| Jul 21, 7:17 AM EDT | Severe Thunderstorm Warning | LMK | Jefferson, Scott | 43 min |
| Jul 21, 7:19 AM EDT | Severe Thunderstorm Warning | ILN | Preble | 26 min |
| Jul 21, 7:22 AM EDT | Severe Thunderstorm Warning | ILN | Dearborn | 38 min |
| Jul 21, 7:24 AM EDT | Severe Thunderstorm Warning | ILN | Darke | 36 min |
| Jul 21, 7:30 AM EDT | Severe Thunderstorm Warning | ILN | Ohio, Switzerland | 45 min |
| Jul 21, 7:34 AM EDT | Severe Thunderstorm Warning | ILN | Auglaize | 41 min |
| Jul 21, 7:41 AM EDT | Severe Thunderstorm Warning | ILN | Miami, Montgomery, Shelby | 49 min |
| Jul 21, 7:44 AM EDT | Severe Thunderstorm Warning | ILN | Preble | 31 min |
| Jul 21, 7:47 AM EDT | Severe Thunderstorm Warning | ILN | Carroll, Gallatin | 43 min |
| Jul 21, 7:49 AM EDT | Severe Thunderstorm Warning | ILN | Campbell, Grant, Kenton, Owen | 41 min |
| Jul 21, 7:52 AM EDT | Severe Thunderstorm Warning | ILN | Warren | 38 min |
| Jul 21, 7:54 AM EDT | Severe Thunderstorm Warning | ILN | Hardin | 51 min |
| Jul 21, 7:59 AM EDT | Severe Thunderstorm Warning | ILN | Pendleton | 46 min |
| Jul 21, 8:04 AM EDT | Severe Thunderstorm Warning | ILN | Clark, Greene | 41 min |
| Jul 21, 8:10 AM EDT | Severe Thunderstorm Warning | ILN | Champaign, Logan | 50 min |
| Jul 21, 8:52 AM EDT | Severe Thunderstorm Warning | CLE | Marion | 38 min |
| Jul 21, 9:17 AM EDT | Severe Thunderstorm Warning | CLE | Morrow | 43 min |
| Jul 21, 9:25 AM EDT | Severe Thunderstorm Warning | CLE | Knox | 50 min |
| Jul 21, 9:34 AM EDT | Severe Thunderstorm Warning | CLE | Richland | 41 min |
| Jul 21, 10:08 AM EDT | Severe Thunderstorm Warning | CLE | Holmes | 52 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.2 hours before the alert went out and 54 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
- 756 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1300 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 211008
SEL4
SPC WW 211010
INZ000-KYZ000-OHZ000-211600-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 784
NWS STORM PREDICTION CENTER NORMAN OK
610 AM EDT MON JUL 21 2003
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEASTERN INDIANA
FAR NORTHERN KENTUCKY
SOUTHWEST AND CENTRAL OHIO
EFFECTIVE THIS MONDAY MORNING FROM 610 AM UNTIL 1200 PM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES
EAST AND WEST OF A LINE FROM 60 MILES NORTH NORTHWEST OF COLUMBUS
OHIO TO 35 MILES SOUTH SOUTHWEST OF CINCINNATI OHIO.
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 783...
DISCUSSION...LINE OF STRONG TO SEVERE THUNDERSTORMS CONTINUES MOVING
ESEWD ACROSS INDIANA EARLY THIS MORNING AT 45 KT. THIS LINEAR MCS
IS EXPECTED TO MAINTAIN A SIMILAR MOTION/INTENSITY ACROSS WW DURING
THE NEXT SEVERAL HOURS...WITH ATTENDANT THREAT OF DAMAGING WINDS.
ISOLATED VERY STRONG/SIGNIFICANT WIND DAMAGE MAY ACCOMPANY THIS BOW
ECHO SYSTEM.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29045.
...EVANS
404,0814 383,0831 383,0860 404,0845SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 10:39 PM EDT | Mesoscale Discussion | SPC | Elkhart, Kosciusko, LaGrange, LaPorte, Marshall, Noble and 3 more | 66 min |
| Jul 20, 10:48 PM EDT | Mesoscale Discussion | SPC | Lake, Newton | 117 min |
| Jul 20, 11:15 PM EDT | Severe Thunderstorm Watch | SPC | Lake, Porter | 7 hr |
| Jul 21, 12:45 AM EDT | Severe Thunderstorm Watch | SPC | Allen, DeKalb, Elkhart, Fulton, Huntington, Kosciusko and 11 more | 5 hr |
| Jul 21, 2:56 AM EDT | Mesoscale Discussion | SPC | Bartholomew, Benton, Boone, Brown, Clay, Clinton and 20 more | 2 hr |
| Jul 21, 4:15 AM EDT | Severe Thunderstorm Watch | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 47 more | 6 hr |
| Jul 21, 5:12 AM EDT | Mesoscale Discussion | SPC | Gibson, Knox, Posey, Sullivan, Vanderburgh | 2 hr |
| Jul 21, 6:03 AM EDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 17 more | 117 min |
| Jul 21, 11:27 AM EDT | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 29 more | 2 hr |
| Jul 21, 4:26 PM EDT | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Fulton, Jasper, Kosciusko and 12 more | 94 min |
| Jul 21, 7:39 AM EDT | Mesoscale Discussion | SPC | Boyd, Bracken, Carter, Fleming, Greenup, Harrison and 5 more | 96 min |
| Jul 21, 8:03 AM EDT | Mesoscale Discussion | SPC | Allen, Anderson, Barren, Breckinridge, Bullitt, Butler and 31 more | 117 min |
| Jul 21, 8:40 AM EDT | Severe Thunderstorm Watch | SPC | Bath, Boyd, Carter, Elliott, Greenup, Lawrence and 3 more | 5 hr |
| Jul 21, 12:55 PM EDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Barren, Boyle, Butler, Caldwell and 34 more | 6 hr |
| Jul 21, 2:41 PM EDT | Mesoscale Discussion | SPC | Bell, Floyd, Harlan, Knott, Leslie, Letcher and 3 more | 64 min |
| Jul 21, 4:14 PM EDT | Mesoscale Discussion | SPC | Allen, Christian, Cumberland, Logan, Monroe, Muhlenberg and 3 more | 2 hr |
| Jul 21, 2:11 AM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Crawford, Cuyahoga, Erie, Geauga and 24 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 2003Severe Thunderstorm Watches in Indiana, 2003Severe Thunderstorm Watches in Kentucky, 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.