Alert archive / Michigan / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 4, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Mar 28, 1998, 11:42 AM EST for Macomb County, Michigan. It was in force for 63 min. 2 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
- Mar 28, 1998, 11:42 AM EST (16:42 UTC)
- Expired
- Mar 28, 1998, 12:45 PM EST
- In force
- 63 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Macomb County, MI
The radar
The Detroit radar (KDTX), 46 km from the middle of the area, began a volume at 16:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 11:55 AM EST | Thunderstorm Wind 50 | Utica, MI | |
| Mar 28, 11:55 AM EST | Thunderstorm Wind 50 | Roseville, MI |
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 12:00Z, 4.7 hours before the alert went out and 43 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 889 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Mar 28, 9:48 AM EST, 1 hour 54 minutes before
MIZ047>049-053>055-060>063-068>070-075-076-082-083-282200- SEVERE WEATHER OUTLOOK FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 948 AM EST SAT MAR 28 1998 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SHOWERS AND THUNDERSTORMS WILL OCCUR OVER SOUTHEAST MICHIGAN LATE THIS MORNING AND INTO THE AFTERNOON. THERE IS THE POTENTIAL FOR A FEW OF THESE STORMS TO BECOME SEVERE...PRODUCING WIND GUSTS OF OVER 60 MPH. THE BEST CHANCE OF SEVERE WEATHER TODAY WILL BE SOUTH OF I-69. SEVERE THUNDERSTORMS HAVE ALREADY OCCURRED THIS MORNING IN PARTS OF NORTHERN INDIANA. A WEAK COLD FRONT IN THE WESTERN GREAT LAKES THIS MORNING WILL APPROACH SOUTHEAST LOWER MICHIGAN THIS AFTERNOON. WITH UNSEASONABLY WARM AND MOIST AIR IN PLACE OVER THE AREA...SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP AHEAD OF THE FRONT. THESE THUNDERSTORMS WILL MOVE RAPIDLY TO THE NORTHEAST AT SPEEDS IN EXCESS OF 50 MPH. STAY TUNED TO NOAA WEATHER RADIO...AND TO YOUR LOCAL RADIO... TELEVISION...AND CABLE TELEVISION STATIONS FOR THE LATEST WEATHER INFORMATION. ZOLTOWSKI
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 11:14 AM EST | Severe Thunderstorm Warning | DTX | Washtenaw | 46 min |
| Mar 28, 11:22 AM EST | Severe Thunderstorm Warning | DTX | Wayne | 63 min |
| Mar 28, 11:35 AM EST | Severe Thunderstorm Warning | DTX | Oakland | 60 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1998Every severe thunderstorm warning 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.