Alert archive / Missouri / Frost Advisories in 2021
Frost Advisory 5, NWS Kansas City, MO
NWS Kansas City, MO issued this frost advisory at Oct 15, 2021, 9:17 PM CDT for 4 counties in Missouri; Atchison County, Doniphan County, Kansas. It took effect at Oct 16, 2021, 2:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Oct 15, 2021, 9:17 PM CDT (02:17 UTC)
- In effect from
- Oct 16, 2021, 2:00 AM CDT
- Expired
- Oct 16, 2021, 9:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Kansas City, MO
Counties Atchison County, KS, Doniphan County, KS, Andrew County, MO, Atchison County, MO, Holt County, MO, Nodaway County, MO
The radar
The Topeka radar (KTWX), 149 km from the middle of the area, began a volume at 02:16 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 00:00Z, 2.3 hours before the alert went out and 123 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
- 2378 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
438 WWUS73 KEAX 160217 NPWEAX URGENT - WEATHER MESSAGE National Weather Service Kansas City/Pleasant Hill MO 917 PM CDT Fri Oct 15 2021 KSZ025-102-MOZ001-002-011-012-161100- /O.NEW.KEAX.FR.Y.0005.211016T0700Z-211016T1400Z/ Atchison KS-Doniphan-Atchison MO-Nodaway-Holt-Andrew- Including the cities of Atchison, Wathena, Elwood, Troy, Highland, Tarkio, Rock Port, Fairfax, Maryville, Mound City, Oregon, Maitland, Forest City, Craig, Savannah, and Country Club Villa 917 PM CDT Fri Oct 15 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM CDT SATURDAY... * WHAT...Temperatures as low as 36 will result in patchy frost formation. * WHERE...In Kansas, Atchison KS and Doniphan Counties. In Missouri, Atchison MO, Nodaway, Holt and Andrew Counties. * WHEN...From 2 AM to 9 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
1 follow-up statement
084 WWUS73 KEAX 161046 NPWEAX URGENT - WEATHER MESSAGE National Weather Service Kansas City/Pleasant Hill MO 546 AM CDT Sat Oct 16 2021 KSZ025-102-MOZ001-002-011-012-161400- /O.CON.KEAX.FR.Y.0005.000000T0000Z-211016T1400Z/ Atchison KS-Doniphan-Atchison MO-Nodaway-Holt-Andrew- Including the cities of Atchison, Wathena, Elwood, Troy, Highland, Tarkio, Rock Port, Fairfax, Maryville, Mound City, Oregon, Maitland, Forest City, Craig, Savannah, and Country Club Villa 546 AM CDT Sat Oct 16 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Temperatures as low as 35 will result in patchy frost formation. * WHERE...In Kansas, Atchison KS and Doniphan Counties. In Missouri, Atchison MO, Nodaway, Holt and Andrew Counties. * WHEN...From 2 AM to 9 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Kurtz
Nearby
Frost Advisories in Missouri, 2021Frost 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.