Alert archive / Michigan / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 102, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Sep 26, 1998, 7:47 AM EDT for Huron County, Michigan. It was in force for 58 min. 1 report 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
- Sep 26, 1998, 7:47 AM EDT (11:47 UTC)
- Expired
- Sep 26, 1998, 8:45 AM EDT
- In force
- 58 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Huron County, MI
The radar
The Detroit radar (KDTX), 144 km from the middle of the area, began a volume at 11:43 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 |
|---|---|---|---|
| Sep 26, 8:15 AM EDT | Hail 0.75 | Caseville, 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 00:00Z, 11.8 hours before the alert went out and 140 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
- 1629 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 175 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, Sep 26, 4:37 AM EDT, 3 hours 10 minutes before
MIZ047-048-053-261400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 437 AM EDT SAT SEP 26 1998 ...SEVERE THUNDERSTORM WATCH 835 IS IN EFFECT THROUGH 1000 AM... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR BAY...MIDLAND...AND SAGINAW COUNTIES IN EFFECT THROUGH 10 AM. THIS WOULD INCLUDE THE COMMUNITIES OF BAY CITY...MIDLAND AND SAGINAW. THUNDERSTORMS HAVE DEVELOPED AHEAD OF A WARM FRONTAL BOUNDARY STRETCHING ACROSS SOUTHERN MICHIGAN AT 430 AM. THESE STORMS WHICH PRODUCED LARGE HAIL OVER WISCONSIN ARE MOVING EAST OVER LAKE MICHIGAN. A SEVERE THUNDERSTORM WATCH MEANS THAT SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. PERSONS SHOULD BE ALERT TO CHANGING WEATHER CONDITIONS...AND STAY TUNED FOR FURTHER UPDATES. STRUBLE
Special weather statement, Sep 26, 4:37 AM EDT, 3 hours 10 minutes before
MIZ047-048-053-261400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 437 AM EDT SAT SEP 26 1998 ...SEVERE THUNDERSTORM WATCH 835 IS IN EFFECT THROUGH 1000 AM... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR BAY...MIDLAND...AND SAGINAW COUNTIES IN EFFECT THROUGH 10 AM. THIS WOULD INCLUDE THE COMMUNITIES OF BAY CITY...MIDLAND AND SAGINAW. THUNDERSTORMS HAVE DEVELOPED AHEAD OF A WARM FRONTAL BOUNDARY STRETCHING ACROSS SOUTHERN MICHIGAN AT 430 AM. THESE STORMS WHICH PRODUCED LARGE HAIL OVER WISCONSIN ARE MOVING EAST OVER LAKE MICHIGAN. A SEVERE THUNDERSTORM WATCH MEANS THAT SEVERE THUNDERSTORMS ARE POSSIBLE IN AND NEAR THE WATCH AREA. PERSONS SHOULD BE ALERT TO CHANGING WEATHER CONDITIONS...AND STAY TUNED FOR FURTHER UPDATES. STRUBLE
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 7:13 AM EDT | Severe Thunderstorm Warning | DTX | Bay | 32 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.