Alert archive / Indiana / Areal Flood Advisories in 2021

Areal Flood Advisory 2, NWS Northern Indiana

May 9, 20216 counties in Indiana; 4 counties in Ohio

NWS Northern Indiana issued this areal flood advisory at May 9, 2021, 2:46 PM EDT for 6 counties in Indiana; 4 counties in Ohio. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: May 9, 2021, 2:46 PM EDT (18:46 UTC)
Expired: May 9, 2021, 5:45 PM EDT
In force: 3 hr
Issued by: NWS Northern Indiana
Area: Storm-based polygon

Counties Adams County, IN, Blackford County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Wells County, IN, Allen County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 95 km from the middle of the area, began a volume at 18:46 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.8 hours before the alert went out and 174 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: 1072 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 896 m²/s²
0-3 km storm-relative helicity: 1335 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 areal flood advisory 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 areal flood advisory went out at May 9, 1:15 PM EDT, 1 hour 31 minutes earlier.

Area forecast discussion, May 9, 1:15 PM EDT, 1 hour 31 minutes before

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Hazardous weather outlook, May 9, 10:26 AM EDT, 4 hours 20 minutes before

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In the hours before

Local storm report, May 9, 11:04 AM EDT, 3 hours 42 minutes before

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Local storm report, May 9, 11:55 AM EDT, 2 hours 51 minutes before

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Local storm report, May 9, 12:00 PM EDT, 2 hours 46 minutes before

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Local storm report, May 9, 12:11 PM EDT, 2 hours 35 minutes before

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Local storm report, May 9, 12:17 PM EDT, 2 hours 29 minutes before

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Local storm report, May 9, 1:55 PM EDT, 51 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
May 9, 9:57 AM EDT	River Flood Warning	IWX	Adams, Wells	5 days
May 9, 9:57 AM EDT	River Flood Warning	IWX	Adams, Allen	5 days
May 9, 9:57 AM EDT	River Flood Warning	IWX	Allen	65 hr
May 9, 9:57 AM EDT	River Flood Warning	IWX	Cass, Kosciusko, Miami, Wabash, Whitley	3 days
May 9, 9:57 AM EDT	River Flood Warning	IWX	Allen	69 hr
May 9, 9:57 AM EDT	River Flood Warning	IWX	Allen	11 hr
May 9, 12:58 PM EDT	River Flood Warning	IWX	Jay	28 hr
May 9, 12:58 PM EDT	River Flood Warning	IWX	Blackford, Huntington, Jay, Wabash, Wells	57 hr
May 9, 2:28 PM EDT	River Flood Warning	IWX	Allen, Huntington, Wabash	8 hr
May 9, 2:47 PM EDT	Frost Advisory	IWX	Adams, Allen, Blackford, Cass, DeKalb, Elkhart and 15 more	17 hr
May 9, 6:45 PM EDT	River Flood Warning	IWX	Wells	24 hr
May 9, 9:57 AM EDT	River Flood Warning	IWX	Allen, Paulding, Putnam	3 days
May 9, 9:57 AM EDT	River Flood Warning	IWX	Putnam	30 hr
May 9, 3:51 PM EDT	River Flood Warning	IWX	Defiance, Henry	3 days
May 9, 3:51 PM EDT	River Flood Warning	IWX	Defiance	65 hr
May 9, 3:51 PM EDT	River Flood Warning	IWX	Henry	3 days

Nearby

Areal Flood Advisories in Indiana, 2021 Areal Flood Advisories in Ohio, 2021 Every areal flood advisory in 2021

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.