Alert archive / South Dakota / Frost Advisories in 2021
Frost Advisory 1, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this frost advisory at May 3, 2021, 2:28 PM CDT for 14 counties in South Dakota; Lincoln County, Pipestone County, Minnesota. It took effect at May 4, 2021, 4:00 AM CDT. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- May 3, 2021, 2:28 PM CDT (19:28 UTC)
- In effect from
- May 4, 2021, 4:00 AM CDT
- Expired
- May 4, 2021, 8:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Sioux Falls, SD
Counties Lincoln County, MN, Pipestone County, MN, Aurora County, SD, Beadle County, SD, Brookings County, SD, Brule County, SD, Davison County, SD, Douglas County, SD, Hanson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, McCook County, SD, Miner County, SD, Moody County, SD, Sanborn County, SD
The radar
The Sioux Falls radar (KFSD), 86 km from the middle of the area, began a volume at 19:32 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
Aberdeen, SD (KABR), launched 12:00Z, 7.5 hours before the alert went out and 119 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
- 555 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -85 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
792 WWUS73 KFSD 031928 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 228 PM CDT Mon May 3 2021 MNZ071-097-SDZ038>040-052>061-064-040830- /O.NEW.KFSD.FR.Y.0001.210504T0900Z-210504T1300Z/ Lincoln-Pipestone-Beadle-Kingsbury-Brookings-Jerauld-Sanborn- Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Douglas- 228 PM CDT Mon May 3 2021 ...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM CDT TUESDAY... * WHAT...Temperatures in the lower 30s will result in frost formation. * WHERE...Portions of central, east central, south central and southeast South Dakota and southwest Minnesota. This includes the Tribal Lands of the Flandreau Santee Sioux Tribal Nation. * WHEN...From 4 AM to 8 AM CDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
2 follow-up statements
428 WWUS73 KFSD 040227 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 927 PM CDT Mon May 3 2021 MNZ071-097-SDZ038>040-052>061-064-041300- /O.CON.KFSD.FR.Y.0001.210504T0900Z-210504T1300Z/ Lincoln-Pipestone-Beadle-Kingsbury-Brookings-Jerauld-Sanborn- Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Douglas- 927 PM CDT Mon May 3 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM CDT TUESDAY... * WHAT...Temperatures in the lower 30s will result in frost formation. * WHERE...Portions of central, east central, south central and southeast South Dakota and southwest Minnesota. This includes the Tribal Lands of the Flandreau Santee Sioux Tribal Nation. * WHEN...From 4 AM to 8 AM CDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
588 WWUS73 KFSD 041258 NPWFSD URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 758 AM CDT Tue May 4 2021 MNZ071-097-SDZ038>040-052>061-064-041400- /O.EXP.KFSD.FR.Y.0001.000000T0000Z-210504T1300Z/ Lincoln-Pipestone-Beadle-Kingsbury-Brookings-Jerauld-Sanborn- Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-Douglas- 758 AM CDT Tue May 4 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... Temperatures have warmed above freezing with abundant sunshine this morning, therefore frost is no longer a threat. Temperatures cool to the mid 30s again tonight, so those with sensitive outdoor vegetation will want to monitor the forecast for any additional headlines. $$ For more information from the National Weather Service visit https://weather.gov/siouxfalls
Nearby
Frost Advisories in South Dakota, 2021Frost Advisories in Minnesota, 2021Every frost 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.