Alert archive / Michigan / Special Weather Statements in 2016
Special Weather Statement, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this special weather statement at Jun 20, 2016, 1:29 PM EDT for Cass 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 outline as issued.
The facts
- Issued
- Jun 20, 2016, 1:29 PM EDT (17:29 UTC)
- Expired
- Jun 20, 2016, 2:00 PM EDT
- In force
- 31 min
- Issued by
- NWS Grand Rapids, MI
County Cass County, MI
The radar
The Northern Indiana radar (KIWX), 91 km from the middle of the area, began a volume at 17:28 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, 5.5 hours before the alert went out and 223 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
- 859 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 997 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 150 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.6
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Jun 20, 1:00 PM EDT, 29 minutes earlier.
Area forecast discussion, Jun 20, 1:00 PM EDT, 29 minutes before
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</html>Hazardous weather outlook, Jun 20, 1:08 PM EDT, 21 minutes before
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Special weather statement, Jun 20, 11:34 AM EDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT...CORRECTED EXPIRATION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1134 AM EDT MON JUN 20 2016 MIZ040-201600- CLARE MI- 1134 AM EDT MON JUN 20 2016 ...SIGNIFICANT WEATHER ADVISORY... AT 1133 AM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR HARRISON...MOVING EAST AT 35 MPH. NICKEL SIZE HAIL AND WIND GUSTS AT LEAST 50 MPH WITH DOWNED TREE LIMBS WILL BE POSSIBLE WITH THIS STORM. THIS STORM IS EXPECTED TO EXIT CLARE COUNTY WELL BEFORE NOON EDT. LOCATIONS IMPACTED INCLUDE... MOST RURAL AREAS... PRECAUTIONARY/PREPAREDNESS ACTIONS... FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE. && LAT...LON 4415 8461 4381 8461 4381 8489 4416 8481 TIME...MOT...LOC 1533Z 280DEG 32KT 4406 8463 TJT
Special weather statement, Jun 20, 11:40 AM EDT, 1 hour 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1140 AM EDT MON JUN 20 2016 MIZ051-056>058-201615- IONIA MI-KENT MI-OTTAWA MI-MONTCALM MI- 1140 AM EDT MON JUN 20 2016 ...SIGNIFICANT WEATHER ADVISORY... AT 1140 AM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER SPARTA...MOVING EAST AT 50 MPH. HALF INCH HAIL AND WIND GUSTS AT LEAST 40 MPH WITH SOME DOWNED TREE LIMBS WILL BE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... ROCKFORD... SPARTA... NORTHVIEW... FOREST HILLS... GRATTAN... CEDAR SPRINGS... KENT CITY... CASNOVIA... COMSTOCK PARK... BELMONT... CANNONSBURG... LAT...LON 4326 8578 4321 8531 4297 8531 4306 8579 TIME...MOT...LOC 1540Z 283DEG 45KT 4317 8567 CAS
Special weather statement, Jun 20, 12:12 PM EDT, 1 hour 17 minutes before
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</html>Local storm report, Jun 20, 1:09 PM EDT, 20 minutes before
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</html>Local storm report, Jun 20, 1:19 PM EDT, 10 minutes before
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</html>Special weather statement, Jun 20, 1:29 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 11:34 AM EDT | Special Weather Statement | GRR | Clare | 56 min |
| Jun 20, 11:40 AM EDT | Special Weather Statement | GRR | Kent | 35 min |
| Jun 20, 12:12 PM EDT | Special Weather Statement | GRR | Ionia | 48 min |
Nearby
Special Weather Statements in Michigan, 2016Every special weather statement in 2016
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.