Alert archive / Michigan / Flood Watches in 2017
Flood Watch 4, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this flood watch at Oct 14, 2017, 3:14 AM EDT for 18 counties in Michigan. It took effect at Oct 14, 2017, 8:00 AM EDT. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Oct 14, 2017, 3:14 AM EDT (07:14 UTC)
- In effect from
- Oct 14, 2017, 8:00 AM EDT
- Expired
- Oct 15, 2017, 3:11 AM EDT
- In force
- 19 hr
- Issued by
- NWS Grand Rapids, MI
- Flood severity
- None
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Gratiot County, MI, Ingham County, MI, Ionia County, MI, Isabella County, MI, Kalamazoo County, MI, Kent County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 15 km from the middle of the area, began a volume at 07:14 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, 7.2 hours before the alert went out and 162 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
- 1169 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Oct 13, 11:52 PM EDT, 3 hours 22 minutes earlier.
Area forecast discussion, Oct 13, 11:52 PM EDT, 3 hours 22 minutes before
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</html>Hazardous weather outlook, Oct 13, 3:23 AM EDT, 23 hours 51 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 |
|---|---|---|---|---|
| Oct 14, 10:26 AM EDT | Gale Warning | GRR | 32 hr | |
| Oct 14, 11:37 AM EDT | Wind Advisory | GRR | Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more | 28 hr |
| Oct 14, 1:16 PM EDT | Areal Flood Advisory | GRR | Calhoun, Kalamazoo, Van Buren | 24 hr |
| Oct 14, 4:06 PM EDT | Areal Flood Warning | GRR | Calhoun, Kalamazoo, Van Buren | 65 hr |
| Oct 14, 5:08 PM EDT | Areal Flood Advisory | GRR | Allegan, Barry, Eaton, Ingham, Jackson | 24 hr |
Nearby
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.