Alert archive / Michigan / Flood Watches in 2018
Flood Watch 2, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this flood watch at May 14, 2018, 3:39 AM EDT for 8 counties in Michigan. It took effect at May 14, 2018, 4:00 AM EDT. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- May 14, 2018, 3:39 AM EDT (07:39 UTC)
- In effect from
- May 14, 2018, 4:00 AM EDT
- Expired
- May 15, 2018, 8:00 AM EDT
- In force
- 28 hr
- Issued by
- NWS Grand Rapids, MI
- Flood severity
- None
Counties Allegan County, MI, Barry County, MI, Calhoun County, MI, Eaton County, MI, Ingham County, MI, Jackson County, MI, Kalamazoo County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 60 km from the middle of the area, began a volume at 07:40 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, 7.7 hours before the alert went out and 150 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
- 923 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 107 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 May 14, 3:30 AM EDT, 9 minutes earlier.
Area forecast discussion, May 14, 3:30 AM EDT, 9 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 |
|---|---|---|---|---|
| May 14, 4:25 AM EDT | Special Marine Warning | GRR | 66 min | |
| May 14, 4:39 AM EDT | Special Weather Statement | GRR | Allegan, Van Buren | 66 min |
| May 14, 5:35 AM EDT | Special Weather Statement | GRR | Kalamazoo | 55 min |
| May 14, 6:24 AM EDT | Special Weather Statement | GRR | Calhoun, Jackson | 66 min |
| May 14, 9:59 AM EDT | Areal Flood Warning | GRR | Kalamazoo, Van Buren | 4 hr |
| May 14, 11:38 AM EDT | River Flood Warning | GRR | Kalamazoo | 4 days |
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.