Alert archive / Indiana / Flood Watches in 2020

Flood Watch 1, NWS Indianapolis, IN

January 8, 202039 counties in Indiana

NWS Indianapolis, IN issued this flood watch at Jan 8, 2020, 3:35 PM EST for 39 counties in Indiana. It took effect at Jan 10, 2020, 3:24 PM EST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Jan 8, 2020, 3:35 PM EST (20:35 UTC)
In effect from: Jan 10, 2020, 3:24 PM EST
Expired: Jan 11, 2020, 3:12 PM EST
In force: 24 hr
Issued by: NWS Indianapolis, IN
Flood severity: None

All 39 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard 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, Montgomery 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, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 20:36 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

Lincoln, IL (KILX), launched 12:00Z, 8.6 hours before the alert went out and 194 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: 1616 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 125 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 Jan 8, 3:30 PM EST, 5 minutes earlier.

Area forecast discussion, Jan 8, 3:30 PM EST, 5 minutes before

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Hazardous weather outlook, Jan 8, 4:08 AM EST, 11 hours 27 minutes before

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Nearby

Flood Watches in Indiana, 2020 Every flood watch in 2020

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.