Alert archive / Michigan / Tornado Warnings in 1998

Tornado Warning 80, NWS Northern Indiana

August 24, 1998Hillsdale County, Michigan; Williams County, Ohio

NWS Northern Indiana issued this tornado warning at Aug 24, 1998, 5:27 AM EDT for Hillsdale County, Michigan; Williams County, Ohio. It was in force for 48 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Aug 24, 1998, 5:27 AM EDT (09:27 UTC)
Expired
Aug 24, 1998, 6:15 AM EDT
In force
48 min
Issued by
NWS Northern Indiana
Area
Whole counties

Counties Hillsdale County, MI, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 101 km from the middle of the area, began a volume at 09:27 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.

What was reported inside it

TimeReportWhereRemark
Aug 24, 5:30 AM EDTThunderstorm WindHillsdale, MIWIDESPREAD TREE DAMAGE AND POWER LINES DOWN ACROSS THE COUNTY.
Aug 24, 6:00 AM EDTHail 0.88Pioneer, OH
Aug 24, 6:00 AM EDTThunderstorm WindBryan, OHTHE FRONTIER CABLEVISION BUILDING LOST PART OF ITS ROOF.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 9.5 hours before the alert went out and 146 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, Detroit, MI at 00:00Z on 1998-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 812 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, Detroit, MI at 00:00Z on 1998-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
812 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
1734 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.6

Open this sounding in Storm Lab

The text

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

987 
WFUS53 KIWX 240931
TORFWA
MIC059-OHC171-241015-

BULLETIN- EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTHERN INDIANA
427 AM EST MON AUG 24 1998

THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HILLSDALE COUNTY IN SOUTH CENTRAL LOWER MICHIGAN
  NORTHERN WILLIAMS COUNTY IN NORTHWESTERN OHIO

* UNTIL 615 AM EDT (515 AM EST)

* AT 525 AM EDT... DOPPLER RADAR AT NORTH WEBSTER INDICATED A
  DEVELOPING TORNADO 14 MILES SOUTH OF HILLSDALE NEAR THE MICHIGAN
  INDIANA STATE LINE MOVING EAST AT 45 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO ARE...
  MONTPELIER
  PIONEER
  WALDRON
  MONTGOMERY
  CAMDEN
  COLUMBIA

THIS IS A DANGEROUS STORM ACT QUICKLY. SEEK SHELTER IN AN
INTERIOR ROOM ON THE LOWEST FLOOR AWAY FROM WINDOWS.

JAH

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 3:56 AM EDTSevere Thunderstorm WarningIWXCass34 min
Aug 24, 4:13 AM EDTSevere Thunderstorm WarningIWXSaint Joseph47 min
Aug 24, 4:39 AM EDTSevere Thunderstorm WarningIWXBranch51 min
Aug 24, 5:14 AM EDTSevere Thunderstorm WarningIWXHillsdale46 min
Aug 24, 5:36 AM EDTSevere Thunderstorm WarningIWXBranch49 min
Aug 24, 3:31 PM EDTSevere Thunderstorm WarningIWXBerrien64 min
Aug 24, 4:03 PM EDTSevere Thunderstorm WarningIWXCass62 min
Aug 24, 4:31 PM EDTSevere Thunderstorm WarningIWXSaint Joseph49 min
Aug 24, 4:53 PM EDTSevere Thunderstorm WarningIWXBranch47 min
Aug 24, 5:11 PM EDTSevere Thunderstorm WarningIWXHillsdale49 min
Aug 24, 5:57 AM EDTSevere Thunderstorm WarningIWXFulton63 min
Aug 24, 6:15 AM EDTSevere Thunderstorm WarningIWXWilliams50 min
Aug 24, 6:48 AM EDTSevere Thunderstorm WarningIWXHenry62 min
Aug 24, 6:55 AM EDTSevere Thunderstorm WarningIWXWilliams50 min
Aug 24, 7:15 AM EDTSevere Thunderstorm WarningIWXFulton50 min
Aug 24, 7:45 AM EDTSevere Thunderstorm WarningIWXHenry45 min
Aug 24, 7:50 AM EDTFlash Flood WarningIWXFulton, Henry, Williams3 hr
Aug 24, 8:01 AM EDTSevere Thunderstorm WarningIWXPutnam49 min
Aug 24, 8:31 AM EDTSevere Thunderstorm WarningIWXHenry34 min
Aug 24, 5:11 PM EDTSevere Thunderstorm WarningIWXDefiance, Paulding, Williams49 min
Aug 24, 5:29 PM EDTSevere Thunderstorm WarningIWXVan Wert46 min
Aug 24, 5:46 PM EDTSevere Thunderstorm WarningIWXHenry, Putnam49 min
Aug 24, 5:46 PM EDTSevere Thunderstorm WarningIWXFulton49 min
Aug 24, 6:09 PM EDTSevere Thunderstorm WarningIWXAllen51 min

Nearby

Tornado Warnings in Michigan, 1998Tornado Warnings in Ohio, 1998Every tornado warning in 1998Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.