Alert archive / Michigan / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 60, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Sep 8, 2015, 3:27 PM EDT for Isabella County, Mecosta County, Montcalm County, Michigan. It was in force for 63 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 8, 2015, 3:27 PM EDT (19:27 UTC)
- Expired
- Sep 8, 2015, 4:30 PM EDT
- In force
- 63 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Isabella County, MI, Mecosta County, MI, Montcalm County, MI
The radar
The Grand Rapids radar (KGRR), 79 km from the middle of the area, began a volume at 19:28 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 nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 7.5 hours before the alert went out and 163 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
- 402 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 920 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- -44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
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.
NWS Grand Rapids, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 8, 3:23 PM EDT, 4 minutes earlier.
Area forecast discussion, Sep 8, 3:23 PM EDT, 4 minutes before
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</html>Hazardous weather outlook, Sep 8, 4:25 AM EDT, 11 hours 2 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 425 AM EDT TUE SEP 8 2015 MIZ037>040-043>046-050>052-056>059-064>067-071>074-090830- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 425 AM EDT TUE SEP 8 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BE NUMEROUS AROUND THE AREA TODAY INTO EARLY THIS EVENING. SOME OF THE STORMS WILL RESULT LOCALLY HEAVY RAINFALL THAT MAY RESULT IN URBAN AND SMALL STREAM FLOODING. A FEW OF THE STORMS MAY HAVE STRONG DAMAGING WIND GUSTS AND FREQUENT CLOUD TO GROUND LIGHTNING. THE STORMS SHOULD MOVE OUT THE AREA BY MID EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. LMZ844>849-090830- ST JOSEPH TO SOUTH HAVEN MI-SOUTH HAVEN TO HOLLAND MI- HOLLAND TO GRAND HAVEN MI-GRAND HAVEN TO WHITEHALL MI- WHITEHALL TO PENTWATER MI-PENTWATER TO MANISTEE MI- 425 AM EDT TUE SEP 8 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT NUMEROUS THUNDERSTORMS ARE EXPECTED THROUGH THE DAY TODAY INTO EARLY THIS EVENING. ANY THUNDERSTORM COULD RESULT IN LOCALLY HIGHER WINDS AND WAVES. LOCALLY HEAVY RAINFALL FROM THESE STORMS IN COMBINATION WITH GUSTY WINDS WILL RESULT IN VISIBILITIES LOCALLY BLOW A HALF MILE AT TIMES. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NORTH WINDS OF 15 TO 25 KNOTS DURING WEDNESDAY MAY RESULT IN DANGEROUS SURF CONDITIONS FOR BEACH GOES AND HAZARDOUS WAVES FOR SMALL CRAFT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. WDM
In the hours before
Special weather statement, Sep 8, 2:08 PM EDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
208 PM EDT TUE SEP 8 2015
MIZ043>045-050-051-057-081915-
MECOSTA MI-MUSKEGON MI-OCEANA MI-KENT MI-NEWAYGO MI-MONTCALM MI-
208 PM EDT TUE SEP 8 2015
...SIGNIFICANT WEATHER ADVISORY...
AT 208 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
NORTH MUSKEGON...MOVING NORTHEAST AT 55 MPH.
WIND GUSTS AT LEAST 40 MPH WITH SOME DOWNED TREE LIMBS WILL BE
POSSIBLE WITH THIS STORM.
THIS STRONG THUNDERSTORM WILL BE NEAR...
FREMONT AROUND 230 PM EDT.
NEWAYGO AND GRANT AROUND 235 PM EDT.
WHITE CLOUD AROUND 240 PM EDT.
MORLEY AROUND 255 PM EDT.
CANADIAN LAKES AROUND 305 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE RODNEY...
VICKERYVILLE...SLOCUM...CASNOVIA...BRUNSWICK...CROTON...DALTON...
STANWOOD...WOODVILLE AND CORAL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4378 8537 4338 8518 4321 8588 4321 8591
4320 8591 4312 8623 4312 8627 4332 8640
4337 8643 4346 8646
TIME...MOT...LOC 1808Z 245DEG 48KT 4328 8627
HOVINGSpecial weather statement, Sep 8, 2:15 PM EDT, 1 hour 12 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 215 PM EDT TUE SEP 8 2015 MIZ057-058-081900- IONIA MI-KENT MI- 215 PM EDT TUE SEP 8 2015 ...SIGNIFICANT WEATHER ADVISORY... AT 215 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER FOREST HILLS...MOVING NORTHEAST AT 30 MPH. WIND GUSTS AT LEAST 40 MPH WITH SOME DOWNED TREE LIMBS WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... LOWELL... KENTWOOD... FOREST HILLS... ADA... GRATTAN... SMYRNA... CANNONSBURG... ALASKA... CASCADE... LAT...LON 4280 8549 4288 8564 4313 8540 4304 8516 TIME...MOT...LOC 1815Z 218DEG 28KT 4292 8553 HOVING
Local storm report, Sep 8, 2:23 PM EDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
223 PM EDT TUE SEP 8 2015
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0215 PM TSTM WND GST 3 SSW CASCADE 42.88N 85.52W
09/08/2015 M41 MPH KENT MI ASOS
&&
NWS GRAND RAPIDS MI
IRIS SYSTEMLocal storm report, Sep 8, 2:28 PM EDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
228 PM EDT TUE SEP 8 2015
...TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
...DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0223 PM HEAVY RAIN WHITE CLOUD 43.55N 85.77W
09/08/2015 M1.50 INCH NEWAYGO MI EMERGENCY MNGR
EMERGENCY MANAGEMENT REPORTED JUST OVER 1.5
INCHES OF RAIN HAS FALLEN IN ABOUT AN HOUR.
RAIN CONTINUES IN THE AREA.
&&
JAMSpecial weather statement, Sep 8, 2:44 PM EDT, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
244 PM EDT TUE SEP 8 2015
MIZ056-081915-
OTTAWA MI-
244 PM EDT TUE SEP 8 2015
...SIGNIFICANT WEATHER ADVISORY...
AT 244 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTH OF BEECHWOOD...MOVING EAST AT 50 MPH.
WIND GUSTS AT LEAST 50 MPH WITH DOWNED TREE LIMBS WILL BE POSSIBLE
WITH THIS STORM.
THIS STRONG THUNDERSTORM WILL BE NEAR...
HUDSONVILLE AND COOPERSVILLE AROUND 300 PM EDT.
JENISON AROUND 305 PM EDT.
WALKER AROUND 315 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE EASTMANVILLE...
ALLENDALE...WRIGHT...SPRING LAKE...DRENTHE...OLIVE CENTER...MARNE...
GRAND VALLEY...BAUER AND JAMESTOWN.
LAT...LON 4312 8591 4321 8591 4321 8579 4277 8578
4277 8621 4298 8622 4312 8627
TIME...MOT...LOC 1844Z 251DEG 43KT 4291 8615
HOVINGSpecial weather statement, Sep 8, 3:11 PM EDT, 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
311 PM EDT TUE SEP 8 2015
MIZ057-081945-
KENT MI-
311 PM EDT TUE SEP 8 2015
...SIGNIFICANT WEATHER ADVISORY...
AT 311 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
JENISON...MOVING NORTHEAST AT 50 MPH.
WIND GUSTS AT LEAST 50 MPH WITH DOWNED TREE LIMBS WILL BE POSSIBLE
WITH THIS STORM.
THIS STRONG THUNDERSTORM WILL BE NEAR...
GRAND RAPIDS...WYOMING...WALKER AND EAST GRAND RAPIDS AROUND 320 PM
EDT.
KENTWOOD AND NORTHVIEW AROUND 325 PM EDT.
FOREST HILLS AROUND 330 PM EDT.
OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE CEDAR SPRINGS...
COMSTOCK PARK...DUTTON...BELMONT...ALTO...ADA...CUTLERVILLE...
CANNONSBURG...BYRON CENTER AND ALASKA.
LAT...LON 4329 8551 4329 8531 4277 8531 4277 8578
4316 8579
TIME...MOT...LOC 1911Z 246DEG 43KT 4294 8580
HOVINGThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 8:40 PM EDT | River Flood Advisory | GRR | Ingham | 65 hr |
| Sep 8, 1:00 PM EDT | Special Weather Statement | GRR | Muskegon, Oceana | 60 min |
| Sep 8, 1:22 PM EDT | Areal Flood Advisory | GRR | Muskegon, Newaygo, Oceana | 12 hr |
| Sep 8, 2:08 PM EDT | Special Weather Statement | GRR | Mecosta, Muskegon, Newaygo | 67 min |
| Sep 8, 2:15 PM EDT | Special Weather Statement | GRR | Kent | 45 min |
| Sep 8, 2:24 PM EDT | Areal Flood Advisory | GRR | Mecosta | 12 hr |
| Sep 8, 2:31 PM EDT | Severe Thunderstorm Warning | GRR | Clare, Isabella, Mecosta, Osceola | 59 min |
| Sep 8, 2:39 PM EDT | Small Craft Advisory | GRR | 13 hr | |
| Sep 8, 2:44 PM EDT | Special Weather Statement | GRR | Ottawa | 31 min |
| Sep 8, 3:11 PM EDT | Areal Flood Advisory | GRR | Clare, Isabella, Kent, Montcalm, Ottawa | 12 hr |
| Sep 8, 3:11 PM EDT | Special Weather Statement | GRR | Kent | 34 min |
| Sep 8, 3:23 PM EDT | Special Marine Warning | GRR | 97 min | |
| Sep 8, 4:00 PM EDT | Severe Thunderstorm Warning | GRR | Gratiot, Montcalm | 41 min |
| Sep 8, 4:55 PM EDT | Special Weather Statement | GRR | Kalamazoo | 65 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2015Every severe thunderstorm warning in 2015
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.