Alert archive / Indiana / Flood Watches in 2022

Flood Watch 2, NWS Indianapolis, IN

February 21, 202231 counties in Indiana

NWS Indianapolis, IN issued this flood watch at Feb 21, 2022, 10:08 AM EST for 31 counties in Indiana. It took effect at Feb 22, 2022, 1:00 AM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Feb 21, 2022, 10:08 AM EST (15:08 UTC)
In effect from: Feb 22, 2022, 1:00 AM EST
Expired: Feb 22, 2022, 1:04 PM EST
In force: 12 hr
Issued by: NWS Indianapolis, IN
Flood severity: None

All 31 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Clay County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tipton County, IN, Vigo County, IN

The radar

The Indianapolis radar (KIND), 26 km from the middle of the area, began a volume at 15:09 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

Nashville Metro, TN (KBNA), launched 12:00Z, 3.1 hours before the alert went out and 373 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: 1490 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 235 m²/s²
0-3 km storm-relative helicity: 203 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 Indianapolis, IN wrote its last area forecast discussion before this flood watch went out at Feb 21, 9:48 AM EST, 20 minutes earlier.

Area forecast discussion, Feb 21, 9:48 AM EST, 20 minutes before

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Hazardous weather outlook, Feb 21, 3:54 AM EST, 6 hours 14 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 20, 9:48 PM EST	River Flood Warning	IND	Lawrence, Martin	11 days
Feb 20, 9:48 PM EST	River Flood Warning	IND	Lawrence, Martin	9 days

Nearby

Flood Watches in Indiana, 2022 Every flood watch in 2022

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.