Alert archive / Indiana / Winter Weather Advisories in 2021
Winter Weather Advisory 4, NWS Northern Indiana
NWS Northern Indiana issued this winter weather advisory at Feb 3, 2021, 4:00 PM EST for 10 counties in Indiana; Fulton County, Williams County, Ohio; 4 counties in Michigan. It took effect at Feb 4, 2021, 4:00 PM EST. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Feb 3, 2021, 4:00 PM EST (21:00 UTC)
- In effect from
- Feb 4, 2021, 4:00 PM EST
- Expired
- Feb 5, 2021, 7:00 PM EST
- In force
- 27 hr
- Issued by
- NWS Northern Indiana
Counties DeKalb County, IN, Elkhart County, IN, Fulton County, IN, LaGrange County, IN, Marshall County, IN, Noble County, IN, Pulaski County, IN, Starke County, IN, Steuben County, IN, Whitley County, IN, Branch County, MI, Cass County, MI, Hillsdale County, MI, Saint Joseph County, MI, Fulton County, OH, Williams County, OH
The radar
The Northern Indiana radar (KIWX), 25 km from the middle of the area, began a volume at 21:03 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, 9.0 hours before the alert went out and 302 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
- 1107 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather 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 winter weather advisory went out at Feb 3, 3:51 PM EST, 9 minutes earlier.
Area forecast discussion, Feb 3, 3:51 PM EST, 9 minutes before
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</html>Hazardous weather outlook, Feb 3, 4:31 AM EST, 11 hours 29 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 |
|---|---|---|---|---|
| Feb 3, 3:52 AM EST | Gale Watch | IWX | 12 hr | |
| Feb 3, 4:12 PM EST | Gale Warning | IWX | 51 hr | |
| Feb 3, 4:12 PM EST | Small Craft Advisory | IWX | 27 hr |
Nearby
Winter Weather Advisories in Indiana, 2021Winter Weather Advisories in Michigan, 2021Winter Weather Advisories in Ohio, 2021Every winter weather 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.