Alert archive / Michigan / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 2, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Apr 26, 1986, 2:32 AM EST for Kent County, Michigan. It was in force for 58 min.
The area
The counties it named.
The facts
- Issued
- Apr 26, 1986, 2:32 AM EST (07:32 UTC)
- Expired
- Apr 26, 1986, 3:30 AM EST
- In force
- 58 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
County Kent County, MI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 7.5 hours before the alert went out and 176 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
- 493 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 2264 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 131 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 KGRR 260732 SVRGRR MIC081-260830- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GRAND RAPIDS MI 232 AM EST SAT APR 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 AM EST FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHWEST LOWER MICHIGAN...KENT AT 220 AM EST..A WIND GUST OF 52 MPH WAS RECORDED AT KENT COUNTY AIRPORT IN GRAND RAPIDS. AT 225 AM..THE WIND WAS STEADY AT 35 MPH WITH GUSTS TO 50 MPH. THESE WINDS ARE ASSOCIATED WITH VERY SLOW MOVING THUNDERSTORMS OVER KENT COUNTY. LARGE HAIL..VERY STRONG DAMAGING WINDS..HEAVY RAIN AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THESE STORMS. IF YOU ARE IN THE PATH OF THIS STORM..GET TO A STURDY BUILDING. SEVERE THUNDERSTORMS PRODUCE STRONG DAMAGING WIND..LARGE HAIL..VERY HEAVY RAIN..AND FREQUENT LIGHTNING. THEY OCCASIONALLY DO SPAWN A TORNADO WITH LITTLE OR NO ADVANCE WARNING..HSO BE ON THE LOOKOUT. MJK
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, Apr 25, 10:08 PM EST, 4 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1010 PM EST FRI APR 25 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EXTREME SOUTHWEST LOWER MICHIGAN UNTIL 2 AM SATURDAY MORNING... JUST PRIOR TO 10 PM EST..SPOTTERS IN KALAMAZOO COUNTY REPORTED HEAVY RAIN..PEA SIZE HAIL..AND 20 MPH WINDS IN GALESBURG..ABOUT 40 MILES SOUTH OF GRAND RAPIDS. A FEW STRONG THUNDERSHOWERS ARE OCCURRING THROUGHOUT SOUTHWEST LOWER MICHIGAN.} IF SEVERE WEATHER THREATENS YOUR AREA..TAKE COVER IMMEDIATELY. WHEN YOU HAVE A CHANCE..REPORT THE SEVERE WEATHER EVENT TO THE NEAREST LAW ENFORCEMENT AGENCY. MJK
Special weather statement, Apr 25, 11:34 PM EST, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1135 PM EST FRI APR 25 1986 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR EXTREME SOUTHWEST LOWER MICHIGAN UNTIL 2 AM SATURDAY MORNING... KENT COUNTY SHERIFF REPORTED AT 1120 PM EST THAT A VERY STRONG THUNDERSTORM ABOUT 10 MILES NORTHEAST OF GRAND RAPIDS PRODUCED SMALL HAIL THAT COMPLETELY COVERED THE GROUND. SOME MINOR LOCAL FLOODING WAS ALSO REPORTED. AT 1130 PM EST RADAR INDICATED SHOWERS AND THUNDERSTORMS EXTENDING FROM TRAVERSE CITY..SOUTH TO EAST OF GRAND RAPIDS..THEN CONTINUING SOUTH TO SOUTH BEND INDIANA. ANOTHER AREA OF THUNDERSTORMS WAS OVER EASTERN WISCONSIN MOVING EAST TO OVER LAKE MICHIGAN. IF SEVERE WEATHER THREATENS YOUR AREA..TAKE COVER IMMEDIATELY. NOTIFY THE NEAREST LAW ENFORCEMENT AGENCY IN YOUR AREA..WHEN TIME PERMITS..OF THE SEVERE WEATHER EVENT. ASK THEM TO RELAY THE INFORMATION TO THE NATIONAL WEATHER SERVICE. MJK
Special weather statement, Apr 26, 12:46 AM EST, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MUSKEGON MI 1245 AM EST SAT APR 25 1986 ...LINE OF THUNDERSTORMS OFFSHORE WESTERN LOWER MICHIGAN... A LINE OF THUNDERSTORMS STRETCHED THE ENTIRE LENGTH OF LAKE MICHIGAN RUNNING PARALLEL OF THE WESTERN LOWER MICHIGAN SHORELINE 20 MILES OFF SHORE. THE HEAVIEST THUNDERSTORMS WERE OCCURRING OFFSHORE FROM NEW BUFFALO IN BERRIEN COUNTY NORTH TO GRAND HAVEN IN OTTAWA COUNTY... BOTH IN SOUTHWEST LOWER MICHIGAN. THE STRENGTH OF THE STORMS OVER THE REMAINDER OF LAKE MICHIGAN HAS DIMINISHED CONSIDERABLY THE PAST HOUR. MOST OF THE STORMS OFFSHORE FROM MUSKEGON IN WEST CENTRAL LOWER MICHIGAN NORTH TO LEELANAU COUNTY IN NORTHWEST LOWER MICHIGAN WERE PRODUCING LIGHT SHOWERS AND DEADLY LIGHTNING. BOLEN
Special weather statement, Apr 26, 1:03 AM EST, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MUSKEGON MI
1245 AM EST SAT APR 25 1986
...LINE OF THUNDERSTORMS OFFSHORE WESTERN LOWER MICHIGAN...
A LINE OF THUNDERSTORMS STRETCHED THE ENTIRE LENGTH OF LAKE MICHIGAN
RUNNING PARALLEL OF THE WESTERN LOWER MICHIGAN SHORELINE 20 MILES OFF
SHORE. THE HEAVIEST THUNDERSTORMS WERE OCCURRING OFFSHORE FROM NEW
BUFFALO IN BERRIEN COUNTY NORTH TO GRAND HAVEN IN OTTAWA COUNTY...
BOTH IN SOUTHWEST LOWER MICHIGAN.
THE STRENGTH OF THE STORMS OVER THE REMAINDER OF LAKE MICHIGAN HAS
DIMINISHED CONSIDERABLY THE PAST HOUR. MOST OF THE STORMS OFFSHORE
FROM MUSKEGON IN WEST CENTRAL LOWER MICHIGAN NORTH TO LEELANAU COUNTY
IN NORTHWEST LOWER MICHIGAN WERE PRODUCING LIGHT SHOWERS AND DEADLY
LIGHTNING.
THE STORMS WERE MOVING ONSHORE AT 20 MILES AN HOUR. {}} BOLENSpecial weather statement, Apr 26, 2:18 AM EST, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MUSKEGON MI 210 AM EST SAT APR 25 1986 ...AREA OF THUNDERSTORMS DEVELOPING OVER NORTHWEST LOWER MICHIGAN... FAIRLY RAPIDLY DEVELOPING THUNDERSTORMS WERE NOTED OVER THE NORTHWEST LOWER MICHIGAN COUNTIES OF LAKE...EXTREME NORTHEAST NEWAYGO...SOUTHWEST OSCEOLA...MECOSTA AND NORTHERN MONTCALM. THE STORMS WERE NOT PRODUCING SEVERE WEATHER...HOWEVER...VERY HEAY RAINS...DEADLY LIGHTNING AND POSSIBLE SMALL HAIL WILL BE ACCOMPANYING THE STORMS. THE STORMS WERE MOVING SLOWLY EAST. VERY HEAVY RAINS MAY PRODUCE POOLING WATER IN LOW LYING AREAS. OPENING DAY TROUT FISHERMAN AND CAMPERS SHOULD BE AWARE OF POSSIBLE RAPIDLY RISING WATERS NEAR STREAMFS AND RIVERS. BOLEN
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 9:41 PM EST | Severe Thunderstorm Warning | GRR | Calhoun | 24 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1986Every severe thunderstorm warning in 1986
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.