Alert archive / Michigan / River Flood Warnings in 2018

River Flood Warning 38, NWS Grand Rapids, MI

May 14, 2018Jackson County, Michigan

NWS Grand Rapids, MI issued this river flood warning at May 14, 2018, 11:04 PM EDT for Jackson County, Michigan. It took effect at May 15, 2018, 9:09 AM EDT. It was in force for 6 days.

The area

The counties it named.

The facts

Issued: May 14, 2018, 11:04 PM EDT (03:04 UTC)
In effect from: May 15, 2018, 9:09 AM EDT
Expired: May 21, 2018, 2:00 PM EDT
In force: 6 days
Issued by: NWS Grand Rapids, MI
Area: Storm-based polygon
Flood severity: Minor

County Jackson County, MI

The radar

The Detroit radar (KDTX), 93 km from the middle of the area, began a volume at 03:05 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 river

Written for the forecast point Grand River at Jackson (JACM4). The gauge peaked at 14.22 ft at May 15, 2018, 5:00 AM EDT.

Action stage: 13 ft
Minor stage: 14 ft
Moderate stage: 15 ft
Major stage: 16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 04109000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at May 14, 7:27 PM EDT, 3 hours 37 minutes earlier.

Area forecast discussion, May 14, 7:27 PM EDT, 3 hours 37 minutes before

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Hazardous weather outlook, May 14, 5:17 AM EDT, 17 hours 47 minutes before

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
517 AM EDT Mon May 14 2018

MIZ037>040-043>046-050>052-056>059-064>067-071>074-150930-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
517 AM EDT Mon May 14 2018

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Periods of showers and storms are expected from this morning
through tonight. Heavy rain may lead to flooding in areas south of
Interstate 96. Storms today and tonight have the potential to
become severe with hail to around 1 inch in diameter and wind
gusts to near 60 mph.

Areas of fog may reduce visibilities to around one quarter of a
mile through mid morning.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms will remain a possibility Tuesday morning. Some
river flooding and ponding of water in low lying areas may persist
through at least mid week in areas that see the heaviest
rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ844>849-150930-
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-
517 AM EDT Mon May 14 2018

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Thunderstorms will be possible south of Muskegon today and
tonight. Some of the storms will pose a hazard to mariners with
large hail and winds in excess of 35 knots.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A few storms will be possible Tuesday morning south of Holland.
Hail, gusty winds and lightning will remain threats to mariners.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

DUKE

The office that day

Everything else NWS Grand Rapids, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 14, 8:16 PM EDT	Special Marine Warning	GRR		29 min
May 14, 8:33 PM EDT	Special Weather Statement	GRR	Van Buren	57 min
May 14, 11:10 PM EDT	Areal Flood Advisory	GRR	Allegan, Kalamazoo, Van Buren	36 hr

Nearby

River Flood Warnings in Michigan, 2018 Every river flood warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.