Alert archive / Michigan / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 55, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Sep 19, 1997, 4:44 PM EDT for Genesee County, Saginaw County, Michigan. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 19, 1997, 4:44 PM EDT (20:44 UTC)
- Expired
- Sep 19, 1997, 5:15 PM EDT
- In force
- 31 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
Counties Genesee County, MI, Saginaw County, MI
The radar
The Detroit radar (KDTX), 63 km from the middle of the area, began a volume at 20:46 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 19, 3:15 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 8.7 hours before the alert went out and 63 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
- 1487 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 153 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 19, 3:26 PM EDT, 1 hour 18 minutes before
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</html>Special weather statement, Sep 19, 3:27 PM EDT, 1 hour 17 minutes before
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</html>Special weather statement, Sep 19, 3:32 PM EDT, 1 hour 12 minutes before
MIZ047>049-053>055-060>063-068>070-075>076-082>083-201200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT PONTIAC MI 332 PM EDT FRI SEP 19 1997 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS... PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS SOUTHEAST LOWER MICHIGAN THIS AFTERNOON AND TONIGHT. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE THIS AFTERNOON AND EVENING GENERALLY SOUTH OF A LINE FROM MERRILL IN SAGINAW COUNTY TO FORESTVILLE IN SANILAC COUNTY. THIS INCLUDES THE COMMMUNITIES OF FLINT... DETROIT...AND ANN ARBOR. THE THUNDERSTORMS WHICH BECOME SEVERE WILL BE CAPABLE OF PRODUCING HAIL UP TO 1 3/4 INCH IN DIAMATER AND WIND GUSTS UP TO 80 MPH. SPOTTER ACTIVATION WILL BE REQUIRED FOR SAGINAW...TUSCOLA...SANILAC...SHIAWASSEE...GENESEE... LAPEER...ST CLAIR...LIVINGSTON...MACOMB...WASHTENAW...WAYNE... LENAWEE...AND MONROE COUNTIES THIS AFTERNOON AND EARLY TONIGHT. SHOWERS AND THUNDERSTORMS ARE DEVELOPING OUT AHEAD OF A STRONG COLD FRONT. THIS FRONT IS EXPECTED TO MOVE ACROSS EASTERN UPPER MICHIGAN AND THE LOWER PENINSULA THIS AFTERNOON AND TONIGHT. THIS FRONT WILL REACH THE MIDLAND AND SAGINAW BAY AREAS AT BY MIDNIGHT... AND WILL PASS ACROSS THE DETROIT AREA AFTER 300 AM. SCATTERED THUNDERSTORMS WILL CONTINE MOVING INTO SOUTHEAST LOWER MICHIGAN THIS AFTERNOON AND THEY WILL BECOME NUMEROUS TONIGHT. SOME OF THESE THUNDERSTORMS WILL POSSIBLY BECOME SEVERE THIS AFTERNOON AND EVENING SOUTH OF A LINE FROM MERRILL IN SAGINAW COUNTY TO FORESTVILLE IN SANILAC COUNTY. THE THUNDERSTORMS WILL MOVE TO THE EAST AT AROUND 40 MILES AN HOUR. THE MAIN THREAT WILL BE STRONG WINDS GUSTING UP TO 80 MILES AN HOUR AND HAIL AS LARGE 1 3/4 INCH IN DIAMETER. LISTEN TO NOAA WEATHER RADIO... OR YOU LOCAL TV... RADIO... OR CABLE TV STATION FOR POSSIBLE WARNINGS. BOYNE
Special weather statement, Sep 19, 3:34 PM EDT, 1 hour 10 minutes before
MIZ047>049-053>055-060>063-068>070-075>076-082>083-201200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT PONTIAC MI 332 PM EDT FRI SEP 19 1997 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS... PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS SOUTHEAST LOWER MICHIGAN THIS AFTERNOON AND TONIGHT. SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE THIS AFTERNOON AND EVENING GENERALLY SOUTH OF A LINE FROM MERRILL IN SAGINAW COUNTY TO FORESTVILLE IN SANILAC COUNTY. THIS INCLUDES THE COMMMUNITIES OF FLINT... DETROIT...AND ANN ARBOR. THE THUNDERSTORMS WHICH BECOME SEVERE WILL BE CAPABLE OF PRODUCING HAIL UP TO 1 3/4 INCH IN DIAMATER AND WIND GUSTS UP TO 80 MPH. SPOTTER ACTIVATION WILL BE REQUIRED FOR SAGINAW...TUSCOLA...SANILAC...SHIAWASSEE...GENESEE... LAPEER...ST CLAIR...LIVINGSTON...MACOMB...WASHTENAW...WAYNE... LENAWEE...AND MONROE COUNTIES THIS AFTERNOON AND EARLY TONIGHT. SHOWERS AND THUNDERSTORMS ARE DEVELOPING OUT AHEAD OF A STRONG COLD FRONT. THIS FRONT IS EXPECTED TO MOVE ACROSS EASTERN UPPER MICHIGAN AND THE LOWER PENINSULA THIS AFTERNOON AND TONIGHT. THIS FRONT WILL REACH THE MIDLAND AND SAGINAW BAY AREAS AT BY MIDNIGHT... AND WILL PASS ACROSS THE DETROIT AREA AFTER 300 AM. SCATTERED THUNDERSTORMS WILL CONTINE MOVING INTO SOUTHEAST LOWER MICHIGAN THIS AFTERNOON AND THEY WILL BECOME NUMEROUS TONIGHT. SOME OF THESE THUNDERSTORMS WILL POSSIBLY BECOME SEVERE THIS AFTERNOON AND EVENING SOUTH OF A LINE FROM MERRILL IN SAGINAW COUNTY TO FORESTVILLE IN SANILAC COUNTY. THE THUNDERSTORMS WILL MOVE TO THE EAST AT AROUND 40 MILES AN HOUR. THE MAIN THREAT WILL BE STRONG WINDS GUSTING VUP TO 80 MILES AN HOUR AND HAIL AS LARGE 1 3/4 INCH IN DIAMETER. LISTEN TO NOAA WEATHER RADIO... OR YOU LOCAL TV... RADIO... OR CABLE TV STATION FOR POSSIBLE WARNINGS. BOYNE
Special weather statement, Sep 19, 4:20 PM EDT, 24 minutes before
MIZ047>049-053>055-060>063-068>070-075>076-082>083-200100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT PONTIAC MI 420 PM EDT FRI SEP 19 1997 ...SEVERE THUNDERSTORM WATCH 737 IS IN EFFECT FOR A GOOD PART OF SOUTHEAST MICHIGAN UNTIL 9 PM... SEVERE THUNDERSTORM WATCH 737 IS IN EFFECT FOR A GOOD PART OF SOUTHEAST MICHIGAN... MAINLY SOUTH OF A LINE FROM HARBOR BEACH TO SAGINAW. COMMUNITIES AND SURROUNDING AREAS THAT ARE IN THE WATCH INCLUDE SAGINAW... FLINT... SANDUSKY...PORT HURON... HOWELL... ANN ARBOR... DETROIT... PONTIAC... ADRIAN... AND MONROE. AT 420 PM... DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS MOVING ACROSS BAY CITY... SAGINAW... AND MIDLAND. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE... ALTHOUGH SOME OF THEM MAY CONTAIN GUSTY WINDS TO 40 MILES AN HOUR... AND VERY HEAVY RAIN. OTHER AREA OF THUNDERSTORMS WERE MOVING ACROSS SOUTHWEST LOWER MICHIGAN NORTH OF KALAMAZOO AND BATTLE CREEK. THESE STORMS WERE MOVING QUICKLY TO THE EAST AT 50 MILES AN HOUR... AND WILL REACH THE FLINT...HOWELL AND ADRIAN AREAS BETWEEN 530 PM AND 6 PM. IF YOU ARE IN THE WATCH AREA...BE PREPARED TO MOVE QUICKLY TO A STURDY SHELTER IF A WARNING IS ISSUED OR THREATENING WEATHER APPROACHES YOUR AREA. CAMPBELL/NADOLSKI
Special weather statement, Sep 19, 4:23 PM EDT, 21 minutes before
MIZ047>049-053>055-060>063-068>070-075>076-082>083-200100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT PONTIAC MI 420 PM EDT FRI SEP 19 1997 ...SEVERE THUNDERSTORM WATCH 737 IS IN EFFECT FOR A GOOD PART OF SOUTHEAST MICHIGAN UNTIL 9 PM... SEVERE THUNDERSTORM WATCH 737 IS IN EFFECT FOR A GOOD PART OF SOUTHEAST MICHIGAN... MAINLY SOUTH OF A LINE FROM HARBOR BEACH TO SAGINAW. COMMUNITIES AND SURROUNDING AREAS THAT ARE IN THE WATCH INCLUDE SAGINAW... FLINT... SANDUSKY...PORT HURON... HOWELL... ANN ARBOR... DETROIT... PONTIAC... ADRIAN... AND MONROE. AT 420 PM... DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS MOVING ACROSS BAY CITY... SAGINAW... AND MIDLAND. THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE... ALTHOUGH SOME OF THEM MAY CONTAIN GUSTY WINDS TO 40 MILES AN HOUR... AND VERY HEAVY RAIN. OTHER AREA OF THUNDERSTORMS WERE MOVING ACROSS SOUTHWEST LOWER MICHIGAN NORTH OF KALAMAZOO AND BATTLE CREEK. THESE STORMS WERE MOVING QUICKLY TO THE EAST AT 50 MILES AN HOUR... AND WILL REACH THE FLINT...HOWELL AND ADRIAN AREAS BETWEEN 530 PM AND 6 PM. IF YOU ARE IN THE WATCH AREA...BE PREPARED TO MOVE QUICKLY TO A STURDY SHELTER IF A WARNING IS ISSUED OR THREATENING WEATHER APPROACHES YOUR AREA. CAMPBELL/NADOLSKI
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 1:15 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 60 min |
| Sep 19, 5:36 PM EDT | Severe Thunderstorm Warning | DTX | Livingston, Washtenaw | 39 min |
| Sep 19, 5:55 PM EDT | Severe Thunderstorm Warning | DTX | Oakland, Wayne | 65 min |
| Sep 19, 6:32 PM EDT | Flash Flood Warning | DTX | Macomb, Oakland, Wayne | 118 min |
| Sep 19, 6:32 PM EDT | Flash Flood Warning | DTX | Livingston | 118 min |
| Sep 19, 6:40 PM EDT | Severe Thunderstorm Warning | DTX | Monroe | 50 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1997Every severe thunderstorm warning in 1997
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.