Alert archive / South Dakota / Freeze Warnings in 2014
Freeze Warning 3, NWS Aberdeen, SD
NWS Aberdeen, SD issued this freeze warning at Sep 11, 2014, 1:46 PM MDT for Corson County, South Dakota. It took effect at Sep 12, 2014, 12:00 AM MDT. It was in force for 8 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
- Sep 11, 2014, 1:46 PM MDT (19:46 UTC)
- In effect from
- Sep 12, 2014, 12:00 AM MDT
- Expired
- Sep 12, 2014, 7:45 AM MDT
- In force
- 8 hr
- Issued by
- NWS Aberdeen, SD
County Corson County, SD
The radar
The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 19:49 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
Rapid City, SD (KRAP), launched 12:00Z, 7.8 hours before the alert went out and 225 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
- 478 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 270 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 1:46 PM MDT | Frost Advisory | ABR | Brown, Campbell, Dewey, Edmunds, Faulk, Hughes and 7 more | 18 hr |
Nearby
Freeze Warnings in South Dakota, 2014Every freeze warning in 2014
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.