Alert archive / Kansas / Frost Advisories in 2021
Frost Advisory 2, NWS Topeka, KS
NWS Topeka, KS issued this frost advisory at Apr 13, 2021, 3:08 PM CDT for 5 counties in Kansas. It took effect at Apr 14, 2021, 1:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 13, 2021, 3:08 PM CDT (20:08 UTC)
- In effect from
- Apr 14, 2021, 1:00 AM CDT
- Expired
- Apr 14, 2021, 8:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Topeka, KS
Counties Brown County, KS, Marshall County, KS, Nemaha County, KS, Republic County, KS, Washington County, KS
The radar
The Topeka radar (KTWX), 94 km from the middle of the area, began a volume at 20:11 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
Topeka, KS (KTOP), launched 12:00Z, 8.1 hours before the alert went out and 120 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
- 1873 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -223 m²/s²
- 0-3 km storm-relative helicity
- -128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
314 WWUS73 KTOP 132008 NPWTOP URGENT - WEATHER MESSAGE National Weather Service Topeka KS 308 PM CDT Tue Apr 13 2021 KSZ008>012-141300- /O.NEW.KTOP.FR.Y.0002.210414T0600Z-210414T1300Z/ Republic-Washington-Marshall-Nemaha-Brown- Including the cities of Belleville, Washington, Hanover, Clifton, Linn, Greenleaf, Marysville, Blue Rapids, Frankfort, Sabetha, Seneca, Hiawatha, and Horton 308 PM CDT Tue Apr 13 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Republic, Washington, Marshall, Nemaha and Brown Counties. * WHEN...From 1 AM to 8 AM CDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Flanagan
1 follow-up statement
359 WWUS73 KTOP 141247 NPWTOP URGENT - WEATHER MESSAGE National Weather Service Topeka KS 747 AM CDT Wed Apr 14 2021 KSZ008>012-141400- /O.EXP.KTOP.FR.Y.0002.000000T0000Z-210414T1300Z/ Republic-Washington-Marshall-Nemaha-Brown- Including the cities of Belleville, Washington, Hanover, Clifton, Linn, Greenleaf, Marysville, Blue Rapids, Frankfort, Sabetha, Seneca, Hiawatha, and Horton 747 AM CDT Wed Apr 14 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... Widespread sunshine and warming temperatures will cause any frost to dissipate early this morning. $$
Nearby
Frost Advisories in Kansas, 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.