Alert archive / Michigan / Flood Watches in 2008

Flood Watch 4, NWS Grand Rapids, MI

June 8, 200823 counties in Michigan

NWS Grand Rapids, MI issued this flood watch at Jun 8, 2008, 3:27 AM EDT for 23 counties in Michigan. It took effect at Jun 8, 2008, 11:53 AM EDT. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued: Jun 8, 2008, 3:27 AM EDT (07:27 UTC)
In effect from: Jun 8, 2008, 11:53 AM EDT
Expired: Jun 10, 2008, 3:43 AM EDT
In force: 40 hr
Issued by: NWS Grand Rapids, MI
Flood severity: None

All 23 counties

Allegan County, MI, Barry County, MI, Calhoun County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Mason County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Osceola County, MI, Ottawa County, MI, Van Buren County, MI

The radar

The Grand Rapids radar (KGRR), 27 km from the middle of the area, began a volume at 07:30 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 00:00Z, 7.5 hours before the alert went out and 165 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1399 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 909 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Jun 8, 1:32 AM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Jun 8, 1:32 AM EDT, 1 hour 55 minutes before

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Hazardous weather outlook, Jun 8, 12:25 AM EDT, 3 hours 2 minutes before

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In the hours before

Local storm report, Jun 8, 12:27 AM EDT, 3 hours before

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Local storm report, Jun 8, 12:55 AM EDT, 2 hours 32 minutes before

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Local storm report, Jun 8, 1:10 AM EDT, 2 hours 17 minutes before

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Local storm report, Jun 8, 1:23 AM EDT, 2 hours 4 minutes before

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Special weather statement, Jun 8, 1:23 AM EDT, 2 hours 4 minutes before

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Special weather statement, Jun 8, 1:35 AM EDT, 1 hour 52 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 8:09 PM EDT	Special Marine Warning	GRR		81 min
Jun 7, 8:16 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Ottawa	44 min
Jun 7, 8:28 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Ionia, Kent	35 min
Jun 7, 9:00 PM EDT	Severe Thunderstorm Warning	GRR	Ottawa	60 min
Jun 7, 9:24 PM EDT	Severe Thunderstorm Warning	GRR	Allegan	81 min
Jun 7, 9:30 PM EDT	Special Marine Warning	GRR		90 min
Jun 7, 9:39 PM EDT	Special Marine Warning	GRR		96 min
Jun 7, 9:48 PM EDT	Special Weather Statement	GRR	Barry, Clinton, Eaton, Gratiot, Ingham, Ionia and 2 more	87 min
Jun 7, 9:58 PM EDT	Flash Flood Warning	GRR	Allegan, Barry, Eaton, Ionia, Kent, Ottawa	6 hr
Jun 7, 10:14 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Eaton, Ionia, Kent	46 min
Jun 7, 10:43 PM EDT	Severe Thunderstorm Warning	GRR	Eaton, Ingham	62 min
Jun 7, 10:57 PM EDT	Areal Flood Advisory	GRR	Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more	203 days
Jun 7, 10:57 PM EDT	Severe Thunderstorm Warning	GRR	Clinton	18 min
Jun 7, 11:21 PM EDT	Special Marine Warning	GRR		90 min
Jun 7, 11:47 PM EDT	Severe Thunderstorm Warning	GRR	Kalamazoo, Van Buren	47 min
Jun 8, 1:23 AM EDT	Special Weather Statement	GRR	Kent	67 min
Jun 8, 1:35 AM EDT	Special Weather Statement	GRR	Eaton, Ingham	55 min
Jun 8, 4:01 AM EDT	Areal Flood Warning	GRR	Allegan, Barry, Eaton, Ionia, Kent, Ottawa	56 hr
Jun 8, 9:29 AM EDT	Special Weather Statement	GRR	Ottawa	61 min
Jun 8, 10:33 AM EDT	River Flood Warning	GRR	Barry	5 days
Jun 8, 11:50 AM EDT	Special Weather Statement	GRR	Lake, Mason	55 min
Jun 8, 12:23 PM EDT	Special Marine Warning	GRR		2 hr
Jun 8, 1:04 PM EDT	Special Marine Warning	GRR		86 min
Jun 8, 1:06 PM EDT	Special Weather Statement	GRR	Lake, Mason, Mecosta, Newaygo, Oceana, Osceola	54 min
Jun 8, 1:12 PM EDT	Severe Thunderstorm Warning	GRR	Mason, Oceana	48 min
Jun 8, 1:26 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Kent, Muskegon, Newaygo, Oceana, Ottawa and 1 more	64 min
Jun 8, 1:38 PM EDT	Severe Thunderstorm Warning	GRR	Lake, Mason, Mecosta, Newaygo, Oceana, Osceola	52 min
Jun 8, 1:52 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Van Buren	38 min
Jun 8, 2:16 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Clare, Gratiot, Ionia, Isabella and 7 more	74 min
Jun 8, 2:27 PM EDT	Severe Thunderstorm Warning	GRR	Allegan, Barry, Calhoun, Eaton, Kalamazoo, Van Buren	78 min
Jun 8, 2:30 PM EDT	Tornado Warning	GRR	Clare, Osceola	38 min
Jun 8, 2:34 PM EDT	Tornado Warning	GRR	Osceola	13 min
Jun 8, 3:16 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Clinton, Eaton, Gratiot, Ingham, Ionia and 2 more	59 min
Jun 8, 3:34 PM EDT	Severe Thunderstorm Warning	GRR	Barry, Calhoun, Eaton, Ingham, Jackson, Kalamazoo	71 min
Jun 8, 4:01 PM EDT	Tornado Warning	GRR	Clinton, Eaton, Ingham	25 min
Jun 8, 4:45 PM EDT	Severe Thunderstorm Warning	GRR	Jackson	30 min

Nearby

Flood Watches in Michigan, 2008 Every flood watch in 2008

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.