Alert archive / Indiana / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 151
The Storm Prediction Center issued this severe thunderstorm watch at May 6, 2004, 9:10 PM EST for 26 counties in Indiana; 12 counties in Michigan; 17 counties in Ohio. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2004, 9:10 PM EST (02:10 UTC)
- Expired
- May 7, 2004, 2:00 AM EST
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 55 counties
Adams County, IN, Allen County, IN, Benton County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Jackson County, MI, Kalamazoo County, MI, Lenawee County, MI, Monroe County, MI, Saint Joseph County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Crawford County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Huron County, OH, Lucas County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH
The radar
The Northern Indiana radar (KIWX), 30 km from the middle of the area, began a volume at 02:11 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
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 9:21 PM EST | Severe Thunderstorm Warning | IWX | Hillsdale | 39 min |
| May 6, 9:25 PM EST | Severe Thunderstorm Warning | DTX | Lenawee | 65 min |
| May 6, 9:26 PM EST | Severe Thunderstorm Warning | IWX | Kosciusko | 64 min |
| May 6, 9:40 PM EST | Severe Thunderstorm Warning | IWX | DeKalb | 65 min |
| May 6, 9:50 PM EST | Severe Thunderstorm Warning | DTX | Monroe | 55 min |
| May 6, 10:01 PM EST | Severe Thunderstorm Warning | IWX | Defiance, Williams | 59 min |
| May 6, 10:21 PM EST | Severe Thunderstorm Warning | IWX | Steuben | 54 min |
| May 6, 10:43 PM EST | Severe Thunderstorm Warning | DTX | Washtenaw | 62 min |
| May 6, 11:11 PM EST | Severe Thunderstorm Warning | DTX | Wayne | 49 min |
| May 7, 1:25 AM EST | Severe Thunderstorm Warning | DTX | Lenawee | 65 min |
| May 7, 1:50 AM EST | Severe Thunderstorm Warning | DTX | Washtenaw | 55 min |
| May 7, 1:57 AM EST | Severe Thunderstorm Warning | CLE | Lucas | 48 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
Detroit, MI (KDTX), launched 00:00Z, 2.2 hours before the alert went out and 216 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
- 1012 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 1564 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 290 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 070210
SEL1
SPC WW 070210
INZ000-MIZ000-OHZ000-LMZ000-LEZ000-070700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 151
NWS STORM PREDICTION CENTER NORMAN OK
1010 PM EDT THU MAY 6 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN INDIANA
SOUTHERN LOWER MICHIGAN
NORTHWEST OHIO
LAKE MICHIGAN
LAKE ERIE
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1010 PM
UNTIL 300 AM EDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 55 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 70 MILES WEST SOUTHWEST OF SOUTH
BEND INDIANA TO 55 MILES SOUTHEAST OF DETROIT MICHIGAN.
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.
DISCUSSION...THUNDERSTORMS JUST DEVELOPING INVOF COLD FRONT OVER
MICHIANA REGION EXPECTED TO DEVELOP MAINLY ESE DURING THE NEXT FEW
HOURS. AREA SOUNDINGS AND MODERATE /40-50 KT/ DEEP WNWLY SHEAR
APPEAR FAVORABLE FOR BOTH HAIL AND HIGH WIND. ACTIVITY MAY EVOLVE
INTO A FORWARD-PROPAGATING MCS THAT WOULD EXTEND WIND THREAT INTO NW
OH LATER THIS EVENING. AT THE SAME TIME...ADDITIONAL DEVELOPMENT
MAY OCCUR IN THE UPWIND DIRECTION TOWARD/INTO NRN IL...POSING MAINLY
A THREAT FOR LARGE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29035.
...CORFIDI
420,0873 422,0823 405,0823 402,0873SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 8:37 PM EST | Mesoscale Discussion | SPC | Allen, DeKalb, Elkhart, Kosciusko, LaGrange, Noble and 2 more | 83 min |
| May 7, 6:38 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Benton, Blackford, Boone, Carroll and 30 more | 97 min |
| May 7, 8:30 AM EST | Mesoscale Discussion | SPC | Adams, Allen, Blackford, Carroll, Cass, Clinton and 17 more | 90 min |
| May 7, 8:30 AM EST | Severe Thunderstorm Watch | SPC | Adams, Allen, Blackford, Boone, Carroll, Cass and 26 more | 6 hr |
| May 6, 10:05 PM EST | Mesoscale Discussion | SPC | Ashland, Ashtabula, Cuyahoga, Geauga, Lake, Lorain and 7 more | 85 min |
| May 6, 10:20 PM EST | Severe Thunderstorm Watch | SPC | Ashland, Ashtabula, Carroll, Columbiana, Crawford, Cuyahoga and 27 more | 5 hr |
| May 7, 2:13 AM EST | Mesoscale Discussion | SPC | Ashtabula, Carroll, Columbiana, Cuyahoga, Erie, Geauga and 15 more | 62 min |
| May 7, 9:29 AM EST | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Coshocton, Guernsey, Harrison and 9 more | 91 min |
| May 7, 10:00 AM EST | Severe Thunderstorm Watch | SPC | Athens, Belmont, Coshocton, Gallia, Guernsey, Harrison and 10 more | 6 hr |
| May 7, 11:49 AM EST | Mesoscale Discussion | SPC | Athens, Champaign, Clark, Clinton, Delaware, Fairfield and 24 more | 86 min |
| May 7, 12:49 PM EST | Mesoscale Discussion | SPC | Athens, Belmont, Gallia, Guernsey, Harrison, Hocking and 7 more | 86 min |
Nearby
Severe Thunderstorm Watches in Indiana, 2004Severe Thunderstorm Watches in Ohio, 2004Severe Thunderstorm Watches in Michigan, 2004Every severe thunderstorm watch in 2004
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.