Alert archive / Indiana / Freeze Warnings in 2020
Freeze Warning 4, NWS Northern Indiana
NWS Northern Indiana issued this freeze warning at Apr 17, 2020, 3:48 AM EDT for 12 counties in Indiana; Allen County, Van Wert County, Ohio. It took effect at Apr 18, 2020, 12:00 AM EDT. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 17, 2020, 3:48 AM EDT (07:48 UTC)
- In effect from
- Apr 18, 2020, 12:00 AM EDT
- Expired
- Apr 18, 2020, 10:00 AM EDT
- In force
- 10 hr
- Issued by
- NWS Northern Indiana
Counties Adams County, IN, Blackford County, IN, Cass County, IN, Fulton County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Miami County, IN, Pulaski County, IN, Wabash County, IN, Wells County, IN, White County, IN, Allen County, OH, Van Wert County, OH
The radar
The Northern Indiana radar (KIWX), 68 km from the middle of the area, began a volume at 07:48 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 00:00Z, 7.8 hours before the alert went out and 263 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1388 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning 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 freeze warning went out at Apr 17, 1:28 AM EDT, 2 hours 20 minutes earlier.
Area forecast discussion, Apr 17, 1:28 AM EDT, 2 hours 20 minutes before
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</html>The office that day
Everything else NWS Northern Indiana issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 3:41 PM EDT | Gale Warning | IWX | 31 hr |
Nearby
Freeze Warnings in Indiana, 2020Freeze Warnings in Ohio, 2020Every freeze warning 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.