Alert archive / Michigan / Flood Watches in 2017

Flood Watch 3, NWS Detroit, MI

April 10, 20179 counties in Michigan

NWS Detroit, MI issued this flood watch at Apr 10, 2017, 3:02 PM EDT for 9 counties in Michigan. It took effect at Apr 10, 2017, 7:00 PM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Apr 10, 2017, 3:02 PM EDT (19:02 UTC)
In effect from
Apr 10, 2017, 7:00 PM EDT
Expired
Apr 11, 2017, 2:52 AM EDT
In force
8 hr
Issued by
NWS Detroit, MI
Flood severity
None

Counties Bay County, MI, Genesee County, MI, Huron County, MI, Lapeer County, MI, Midland County, MI, Saginaw County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI

The radar

The Detroit radar (KDTX), 79 km from the middle of the area, began a volume at 19:03 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.0 hours before the alert went out and 380 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2017-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2017-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1191 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 10:41 AM EDTSpecial Weather StatementDTXGenesee, Saginaw, Shiawassee64 min
Apr 10, 11:14 AM EDTSpecial Weather StatementDTXSaginaw, Tuscola61 min
Apr 10, 11:48 AM EDTSpecial Weather StatementDTXHuron, Sanilac42 min
Apr 10, 11:50 AM EDTSpecial Marine WarningDTX85 min
Apr 10, 11:53 AM EDTSpecial Weather StatementDTXGenesee, Lapeer, Livingston, Monroe, Oakland, Washtenaw and 1 more52 min
Apr 10, 12:23 PM EDTSpecial Weather StatementDTXLapeer, Macomb, Monroe, Oakland, Saint Clair, Sanilac and 1 more67 min
Apr 10, 3:48 PM EDTSmall Craft AdvisoryDTX18 hr
Apr 10, 4:35 PM EDTSpecial Weather StatementDTXLenawee, Washtenaw55 min
Apr 10, 5:22 PM EDTSpecial Weather StatementDTXWayne38 min

Nearby

Flood Watches in Michigan, 2017Every flood watch in 2017

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.