Alert archive / Michigan / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 13, NWS Detroit, MI
NWS Detroit, MI issued this severe thunderstorm warning at Jun 20, 1997, 2:20 PM EDT for Livingston County, Michigan. It was in force for 60 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
- Jun 20, 1997, 2:20 PM EDT (18:20 UTC)
- Expired
- Jun 20, 1997, 3:20 PM EDT
- In force
- 60 min
- Issued by
- NWS Detroit, MI
- Area
- Whole counties
County Livingston County, MI
The radar
The Detroit radar (KDTX), 38 km from the middle of the area, began a volume at 18:21 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 |
|---|---|---|---|
| Jun 20, 2:40 PM EDT | Thunderstorm Wind 55 | Fowlerville, MI | Thunderstorm winds downed a 4 foot diameter tree. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 20, 12:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.3 hours before the alert went out and 41 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
- 858 J/kg
- Mixed-layer CIN
- -86 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDTX 201822 RRA
SVRDTX
MIC093-201920-
BULLETIN - EAS ACTIVATION/IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
220 PM EDT FRI JUN 20 1997
* SEVERE THUNDERSTORM WARNING FOR
LIVINGSTON COUNTY - SOUTHEASTERN LOWER MICHIGAN
* UNTIL 320 PM EDT
* SOME AREAS AFFECTED
FOWLERVILLE BY 243 PM EDT
PINCKNEY BY 252 PM EDT
HOWELL BY 253 PM EDT
HAMBURG BY 303 PM EDT
BRIGHTON BY 305 PM EDT
* AT 220 PM EDT...A SEVERE THUNDERSTORM WAS INDICATED BY
DETROIT/PONTIAC DOPPLER RADAR 22 MILES WEST OF HOWELL OR 15
MILES WEST OF FOWLERVILLE MOVING EAST AT 40 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.
CAMPBELLWhat 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, Jun 20, 11:15 AM EDT, 3 hours 5 minutes before
MIZ047>049-053>055-060>063-068>070-075-076-082-083-211200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1115 AM EDT FRI JUN 19 1997 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST LOWER MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED OVER SOUTHEAST LOWER MICHIGAN THIS AFTERNOON AND TONIGHT AS VERY UNSTABLE AIR CONTINUES TO STREAM INTO THE REGION AHEAD OF A COLD FRONT. THE COLD FRONT WAS OVER THE UPPER MISSISSIPPI VALLEY LATE THIS MORNING AND WILL MOVE INTO WESTERN LOWER MICHIGAN SATURDAY MORNING. ISOLATED TO SCATTERED SEVERE THUNDERSTORMS ARE POSSIBLE...ESPECIALLY LATE THIS AFTERNOON AND EVENING. SPOTTER ACTIVATION MAY BE NECESSARY. THESE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS TO 60 MPH...HEAVY DOWNPOURS AND HAIL TO 1/2 INCH IN DIAMETER. THE STORMS WILL ALSO MOVE TO THE EAST AT 25 MPH. STAY TUNED TO THIS STATION FOR THEJ LATEST WEATHER INFORMATION CONCERNING THUNDERSTORM POTENTIAL IN SOUTHEAST LOWER MICHIGAN FOR THIS AFTERNOON AND TONIGHT. GSS
Special weather statement, Jun 20, 11:28 AM EDT, 2 hours 52 minutes before
MIZ053-201630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1128 AM EDT FRI JUN 20 1997 ...STRONG THUNDERSTORMS HEADING FOR SAGINAW COUNTY... AT 1125 AM WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM FROM NEAR ITHICA IN GRATIOT COUNTY EAST TO WESTERN SAGINAW COUNTY. THE STRONGEST PART OF THE STORM WAS OVER EASTERN GRATIOT COUNTY. THE STORM WAS MOVING EAST AT 30 MILES PER HOUR AND WILL AFFECT ST. CHARLES...CHESANING BY 1145 AM AND BIRCH RUN AND FRANKENMUTH BY 1215 PM. HALF INCH SIZE HAIL WAS REPORTED WITH THIS STORM EARLIER IN MONTCALM COUNTY NEAR CARSON CITY. THIS STORM WILL PRODUCE VERY HEAVY RAINFALL ALONG WITH GUSTY WINDS TO 40 MILES AN HOUR. PERSONS IN SAGINAW COUNTY SHOULD BE ALERT TO THIS APPROACHING STORM AND MOVE INTO A SAFE SHELTER IF THREATENING CONDITIONS APPROACH. DRC
Special weather statement, Jun 20, 11:30 AM EDT, 2 hours 50 minutes before
MIZ053-201630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1128 AM EDT FRI JUN 20 1997 ...STRONG THUNDERSTORMS HEADING FOR SAGINAW COUNTY... AT 1125 AM WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM FROM NEAR ITHICA IN GRATIOT COUNTY EAST TO WESTERN SAGINAW COUNTY. THE STRONGEST PART OF THE STORM WAS OVER EASTERN GRATIOT COUNTY. THE STORM WAS MOVING EAST AT 30 MILES PER HOUR AND WILL AFFECT ST. CHARLES...CHESANING BY 1145 AM AND BIRCH RUN AND FRANKENMUTH BY 1215 PM. HALF INCH SIZE HAIL WAS REPORTED WITH THIS STORM EARLIER IN MONTCALM COUNTY NEAR CARSON CITY. THIS STORM WILL PRODUCE VERY HEAVY RAINFALL ALONG WITH GUSTY WINDS TO 40 MILES AN HOUR. PEzRSONS IN SAGINAW COUNTY SHOULD BE ALERT TO THIS APPROACHING STORM AND MOVE INTO A SAFE SHELTER IF THREATENING CONDITIONS APPROACH. DRC
Special weather statement, Jun 20, 1:04 PM EDT, 1 hour 16 minutes before
MIZ047>049-053>055-060>063-068>070-075-076-082-083-202310- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 104 PM EDT FRI JUN 20 1997 ...SEVERE THUNDERSTORM WATCH 488 HAS BEEN ISSUED FOR ALL OF SOUTHEAST MICHIGAN UNTIL 7 PM... SEVERE THUNDERSTORM WATCH 488 HAS BEEN ISSUED FOR ALL OF SOUTHEAST MICHIGAN UNTIL 7 PM. COMMUNITIES IN THE WATCH INCLUDE MIDLAND... BAD AXE... SAGINAW... FLINT... PORT HURON... HOWELL... PONTIAC... MT CLEMENS... ANN ARBOR... DETROIT... AND MONROE. AT 1 PM... STRONG THUNDERSTORMS WERE MOVING ACROSS SOUTHWEST MICHIGAN SOUTH OF THE GRAND RAPIDS AREA. THESE STORMS WERE MOVING TO THE EAST AT 35 MILES AN HOUR... AND WILL MOVE INTO SOUTHEAST LOWER MICHIGAN... FROM CORUNNA TO ADRIAN BETWEEN 230 PM AND 300 PM. THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS OVER 60 MILES AN HOUR... AND VERY HEAVY RAIN THAT MAY CAUSE FLOODING AND SIGNIFICANT PONDING OF WATER. IF YOU ARE IN SOUTHEAST MICHIGAN THIS AFTERNOON... BE ALERT FOR SEVERE WEATHER. IF YOU SEE THEATENING WEATHER APPROACH... MOVE QUICKLY TO SHELTER. CAMPBELL
Special weather statement, Jun 20, 1:06 PM EDT, 1 hour 14 minutes before
MIZ047>049-053>055-060>063-068>070-075-076-082-083-202310- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 104 PM EDT FRI JUN 20 1997 ...SEVERE THUNDERSTORM WATCH 488 HAS BEEN ISSUED FOR ALL OF SOUTHEAST MICHIGAN UNTIL 7 PM... SEVERE THUNDERSTORM WATCH 488 HAS BEEN ISSUED FOR ALL OF SOUTHEAST MICHIGAN UNTIL 7 PM. COMMUNITIES IN THE WATCH INCLUDE MIDLAND... BAD AXE... SAGINAW... FLINT... PORT HURON... HOWELL... PONTIAC... MT CLEMENS... ANN ARBOR... DETROIT... AND MONROE. AT 1 PM... STRONG THUNDERSTORMS WERE MOVING ACROSS SOUTHWEST MICHIGAN SOUTH OF THE GRAND RAPIDS AREA. THESE STORMS WERE MOVING TO THE EAST AT 35 MILES AN HOUR... AND WILL MOVE INTO SOUTHEAST LOWER MICHIGAN... FROM CORUNNA TO ADRIAN BETWEEN 230 PM AND 300 PM. THE MAIN THREAT FROM THESE STORMS WILL BE DAMAGING WINDS OVER 60 MILES AN HOUR... AND VERY HEAVY RAIN THAT MAY CAUSE FLOODING AND SIGNIFICANT PONDING OF WATER. IF YOU ARE IN SOUTHEAST MICHIGAN THIS AFTERNOON... BE ALERT FOR SEVERE WEATHER. IF YOU SEE THEATENING WEATHER APPROACH... MOVE QUICKLY TO SHELTER. CAMPBELL
The office that day
Everything else NWS Detroit, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 12:05 PM EDT | Severe Thunderstorm Warning | DTX | Midland | 50 min |
| Jun 20, 12:24 PM EDT | Severe Thunderstorm Warning | DTX | Saginaw | 41 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.