Alert archive / Indiana / Flood Watches in 2018

Flood Watch 1, NWS Northern Indiana

February 19, 201821 counties in Indiana; 8 counties in Ohio; 4 counties in Michigan

NWS Northern Indiana issued this flood watch at Feb 19, 2018, 1:10 AM EST for 21 counties in Indiana; 8 counties in Ohio; 4 counties in Michigan. It took effect at Feb 19, 2018, 12:00 PM EST. It was in force for 52 hr.

The area

The counties it named.

The facts

Issued: Feb 19, 2018, 1:10 AM EST (06:10 UTC)
In effect from: Feb 19, 2018, 12:00 PM EST
Expired: Feb 21, 2018, 4:00 PM EST
In force: 52 hr
Issued by: NWS Northern Indiana
Flood severity: None

All 33 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, LaGrange County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, White County, IN, Whitley County, IN, Branch County, MI, Cass County, MI, Hillsdale County, MI, Saint Joseph County, MI, Allen County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 38 km from the middle of the area, began a volume at 06:11 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, 6.2 hours before the alert went out and 233 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1809 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 488 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Northern Indiana wrote its last area forecast discussion before this flood watch went out at Feb 19, 12:36 AM EST, 34 minutes earlier.

Area forecast discussion, Feb 19, 12:36 AM EST, 34 minutes before

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Hazardous weather outlook, Feb 18, 5:51 AM EST, 19 hours 19 minutes before

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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 19, 10:39 AM EST	River Flood Warning	IWX	Allen, DeKalb	16 days
Feb 19, 10:39 AM EST	River Flood Warning	IWX	Allen	7 days
Feb 19, 10:39 AM EST	River Flood Warning	IWX	Cass, Kosciusko, Miami, Wabash, Whitley	6 days
Feb 19, 10:39 AM EST	River Flood Warning	IWX	Allen	8 days
Feb 19, 10:39 AM EST	River Flood Warning	IWX	Wells	6 days
Feb 19, 10:39 AM EST	River Flood Warning	IWX	LaPorte, Saint Joseph, Starke	30 days
Feb 19, 2:24 PM EST	River Flood Warning	IWX	Allen	18 hr
Feb 19, 3:34 PM EST	River Flood Warning	IWX	Allen, Huntington, Wabash	24 hr
Feb 19, 3:49 PM EST	Small Craft Advisory	IWX		54 hr
Feb 19, 5:49 PM EST	River Flood Warning	IWX	Fulton, Kosciusko, Marshall, Pulaski, Starke	17 days
Feb 19, 5:49 PM EST	River Flood Warning	IWX	Marshall, Saint Joseph, Starke	7 days
Feb 19, 5:49 PM EST	River Flood Warning	IWX	Noble	21 days
Feb 19, 5:49 PM EST	River Flood Warning	IWX	Elkhart, Noble	7 days

Nearby

Flood Watches in Indiana, 2018 Flood Watches in Ohio, 2018 Flood Watches in Michigan, 2018 Every flood watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.