Alert archive / Michigan / Tornado Warnings in 1991
Tornado Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Mar 27, 1991, 6:01 PM EST for Ottawa County, Michigan. It was in force for 29 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 27, 1991, 6:01 PM EST (23:01 UTC)
- Expired
- Mar 27, 1991, 6:30 PM EST
- In force
- 29 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
County Ottawa County, MI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 27, 6:15 PM EST | Hail 2.75 | Ottawa, MI | |
| Mar 27, 6:20 PM EST | Thunderstorm Wind 61 | Ottawa, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.0 hours before the alert went out and 225 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
- 1516 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- -11 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 tornado 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 27, 2:17 PM EST, 3 hours 44 minutes before
MIZ011-012-018-020-022-023-025-040-041-272000- SPECIAL WEATHER STATEMENT...CORRECTED FOR SOUTH CENTRAL LOWER MICHIGAN NATIONAL WEATHER SERVICE LANSING MI 216 PM EST WED MAR 27 1991 ...SCATTERED SHOWERS AND THUNDERSTORMS IN SOUTH CENTRAL LOWER MICHIGAN.. AT 200 PM EST SCATTERED SHOWERS AND THUNDERSTORMS WERE DECREASING AS THEY MOVED ACROSS SOUTH CENTRAL LOWER MICHIGAN. A LONE THUNDERSTORM WAS IN SOUTHERN EATON COUNTY AT 200 PM MOVING TO THE NORTHEAST AT AROUND 40 MPH. THIS THUNDERSTORM WILL MOVE INTO INGHAM COUNTY BY 230 PM. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND UPDATES. SHEETS
Special weather statement, Mar 27, 4:47 PM EST, 1 hour 14 minutes before
SPECIAL WEATHER STATEMENT AND SHORT RANGE WEATHER FORECAST...COR HEADING... FOR SOUTHWEST LOWER MICHIGAN NATIONAL WEATHER SERVICE GRAND RAPIDS MI 445 PM EST WED MAR 27 1991 ...TORNADO WATCH IN EFFECT UNTIL MIDNIGHT... AT 430 PM SKIES WERE MOSTLY CLOUDY OVER SOUTHWEST LOWER MICHIGAN. PARTLY SUNNY CONDITIONS HAD DEVELOPED AND TEMPERATURES WERE CLIMBING INTO THE LOW 70S. THIS IS SETTING THE STAGE FOR INTENSE THUNDERSTORMS MOVING IN FROM THE WEST. AN INTENSE LINE OF THUNDERSTORMS EXTENDED FROM THE LEELAND PENINSULA...IN NORTHWEST LOWER MICHIGAN...SOUTHWEST... TO THE EXTREME WEST CHICAGO SUBURBS. TORNADOES AND SEVERE THUNDERSTORMS HAVE OCCURRED IN THIS LINE OF THUNDERSTORMS IN ILLINOIS AND WISCONSIN. THESE THUNDERSTORMS ARE MOVING NORTHEAST AROUND 60 MPH. THE THUNDERSTORMS WILL BE MOVING ONTO THE WEST MICHIGAN SHORELINE FROM MUSKEGON TO BENTON HARBOR BY 600 TO 700 PM THIS EVENING. DURING THIS TIME FRAME PERSONS SHOULD SECURE BUILDINGS AND FAMILIES TO INSURE THEIR SAFETY AS THE INTENSE THUNDERSTORMS PASS OVERHEAD. COOLEY
Special weather statement, Mar 27, 5:00 PM EST, 1 hour 1 minute before
MIZ011-012-018-020-022-023-025-040-041-272300- SPECIAL WEATHER STATEMENT FOR SOUTH CENTRAL LOWER MICHIGAN NATIONAL WEATHER SERVICE LANSING MI 500 PM EST WED MAR 27 1991 ...TORNADO WATCH FOR SOUTH CENTRAL LOWER MICHIGAN UNTIL MIDNIGHT... A TORNADO WATCH HAS BEEN ISSUED FOR MUCH OF MICHIGANS LOWER PENINUSULA INCLUDING ALL OF SOUTH CENTRAL LOWER MICHIGAN. THE NEAREST THUNDERSTORMS WERE LOCATED OVER LAKE MICHIGAN AND NORTHEAST ILLINOIS. THESE STORMS WERE MOVING TO THE NORTHEAST AT 50 TO 60 MPH. AT THIS SPEED...THESE THUNDERSTORMS WILL ENTER SOUTHWEST LOWER MICHIGAN AROUND 600 PM EST. ALSO...STRONG WINDS WERE REPORTED IN ST. JOSEPH COUNTY AT 445 PM EST. THESE WINDS WERE PART OF A GENERAL WEATHER PATTERN...NOT ASSOCIATED WITH THUNDERSTORMS. SPOTTERS ESTIMATED WIND GUSTS AT 40 TO 50 MPH WITH MINOR DAMAGE TO TREES AND A UTILITY POLE. WINDS WILL INCREASE ACROSS SOUTH CENTRAL LOWER MICHIGAN IN ADVANCE OF THE THUNDERSTORMS. . STAY TUNED TO NATIONAL WEATHER SERVICE RADIO FOR FURTHER STATEMENTS... UPDATES AND POSSIBLE WARNINGS. SHEETS
Special weather statement, Mar 27, 5:20 PM EST, 41 minutes before
MIZ005-006-014-017-049>059-280010- SPECIAL WEATHER STATEMENT AND SHORT-RANGE WEATHER FORECAST FOR NORTHWEST AND WEST CENTRAL LOWER MICHIGAN NATIONAL WEATHER SERVICE MUSKEGON MI 510 PM EST WED MAR 27 1991 ...SEVERE THUNDERSTORM WARNING UNTIL 600 PM EST FOR BENZIE...GRAND TRAVERSE AND MANISTEE COUNTIES... ...TORNADO WATCH FOR MOST OF LOWER MICHIGAN UNTIL MIDNIGHT... AT 500 PM EST...RADAR DETECTED A SEVERE THUNDERSTORM JUST TO THE NORTH OF KALEVA...OR 25 MILES SOUTHWEST OF TRAVERSE CITY. THIS THUNDERSTORM WAS MOVING NORTHEAST AT 50 MPH AND WILL BE REACHING TRAVERSE CITY NEAR 600 PM. ELSEWHERE...NORTHWEST AND WEST CENTRAL LOWER MICHIGAN SKIES WERE MOSTLY CLOUDY WITH THUNDERSTORMS OVER NORTHWEST LOWER MICHIGAN NORTH OF A LINE FROM LUDINGTON TO REED CITY. TEMPERATURES WERE IN THE 50S AND 60S. WINDS WERE FROM THE SOUTH AT 15 TO 25 MPH AND GUSTY. BESIDES THE THUNDERSTORMS CURRENTLY OVER NORTHWEST LOWER MICHIGAN...THERE WAS A LARGE AREA OF THUNDERSTORMS OVER LAKE MICHIGAN WHICH WILL BE MOVING INTO WEST CENTRAL AND NORTHWEST LOWER MICHIGAN BY 600 PM EST. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL POSSIBLE TORNADOES. IF THREATENING WEATHER APPROACHES...YOU SHOULD SEEK A PLACE OF SAFETY.
Special weather statement, Mar 27, 5:52 PM EST, 9 minutes before
MIZ013-004-016-015-003-010-002-009-272330- SPECIAL WEATHER STATEMENT...AND SHORT-RANGE WEATHER FORECAST NATIONAL WEATHER SERVICE GRAND RAPIDS MI 545 PM EST WED MAR 27 1991 ...TORNADO WATCH IN EFFECT UNTIL MIDNIGHT... AT 545 PM AN INTENSE LINE OF THUNDERSTORMS EXTENDED FROM NEAR LUDINGTON... SOME 80 MILES NORTHWEST OF GRAND RAPIDS...SOUTHWEST ACROSS LAKE MICHIGAN TO THE EAST CHICAGO SUBURBS. TORNADOES AND SEVERE THUNDERSOTRMS HAVE OCCURRED IN THIS LINE OF THUNDERSTORMS EARLIER THIS AFTERNOON. HAIL 3/4 INCH IN DIAMETER WAS REPORTED IN THE MUSKEGON AREA AROUND 530 THIS AFTERNOON. THIS LINE OF THUNDERSTORMS WAS RACING EAST AT AROUND 50 MPH AND WILL BE MOVING INLAND FROM GRAND HAVEN TO BENTO3N HARBOR BY 600 TO 630 PM AND INLAND AS FAR AS GRAND RAPIDS AND SOUTH BEND INDIANA BY 700 TO 800 PM. STAY TUNED TO WEATHER RADIO OR COMMERCIAL RADIO OR TELEVISION FOR LATER STATEMENTS OR POSSIBLE WARNINGS. COOLEY
Special weather statement, Mar 27, 5:55 PM EST, 6 minutes before
MIZ011-012-018-020-022-023-025-040-041-280000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LANSING MI 554 PM EST WED MAR 27 1991 ...TORNADO WATCH FOR SOUTH CENTRAL LOWER MICHIGAN UNTIL MIDNIGHT... A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF SOUTH CENTRAL LOWER MICHIGAN UNTIL 1200 PM EST. AT 600 PM A LINE OF HEAVY THUNDERSTORMS EXTENDED FROM NEAR CHICAGO...THROUGH MUSKEGON TO THE STRAITS OF MACKINAC. THERE WAS ALSO A SHOWER IN ISABELLA COUNTY. THESE STORMS WERE MOVING TO THE NORTHEAST AT 50 TO 60 MPH. THESE THUNDERSTORMS WILL ENTER THE CITY OF MOUNT PLEASANT BY 600 PM. THE LINE OF HEAVY THUNDERSTORMS WILL ENTER ISABELLA COUNTY BY 630 PM AND THE JACKSON...BATTLE CREEK AND LANSING AREA BETWEEN 700 AND 800 PM. THESE STORMS HAVE HAD A HISTORY OF PRODUCING STRONG WINDS...LARGE HAIL AND TORNADOES. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION... STAY TUNED TO YOUR NATIONAL WEATHER SERVICE RADIO FOR THE LATEST INFORMATION A4ND POSSIBLE WARNINGS. SHEETS/P.LEWIS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 4:43 AM EST | Severe Thunderstorm Warning | GRR | Calhoun, Jackson | 22 min |
| Mar 27, 7:50 AM EST | Severe Thunderstorm Warning | GRR | Barry | 25 min |
| Mar 27, 6:32 PM EST | Severe Thunderstorm Warning | GRR | Isabella | 58 min |
| Mar 27, 6:33 PM EST | Severe Thunderstorm Warning | GRR | Allegan, Kent, Montcalm, Ottawa | 57 min |
Nearby
Tornado Warnings in Michigan, 1991Every tornado warning in 1991Tornadoes in 1991
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.