Alert archive / Ohio / Frost Advisories in 2021
Frost Advisory 2, NWS Cleveland, OH
NWS Cleveland, OH issued this frost advisory at Apr 25, 2021, 5:34 PM EDT for 4 counties in Ohio. It took effect at Apr 26, 2021, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 25, 2021, 5:34 PM EDT (21:34 UTC)
- In effect from
- Apr 26, 2021, 2:00 AM EDT
- Expired
- Apr 26, 2021, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Cleveland, OH
Counties Knox County, OH, Marion County, OH, Morrow County, OH, Wyandot County, OH
The radar
The Cleveland radar (KCLE), 128 km from the middle of the area, began a volume at 21:34 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.6 hours before the alert went out and 149 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
- 521 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
943 WWUS71 KCLE 252134 NPWCLE URGENT - WEATHER MESSAGE National Weather Service Cleveland OH 534 PM EDT Sun Apr 25 2021 OHZ027-036-037-047-261200- /O.NEW.KCLE.FR.Y.0002.210426T0600Z-210426T1300Z/ Wyandot-Marion-Morrow-Knox- Including the cities of Upper Sandusky, Carey, Marion, Mount Gilead, Cardington, and Mount Vernon 534 PM EDT Sun Apr 25 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT MONDAY... * WHAT...Temperatures as low as 34 degrees will result in frost formation. * WHERE...Wyandot, Marion, Morrow and Knox Counties. * WHEN...From 2 AM to 9 AM EDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit http://www.weather.gov/cle
2 follow-up statements
478 WWUS71 KCLE 260108 NPWCLE URGENT - WEATHER MESSAGE National Weather Service Cleveland OH 908 PM EDT Sun Apr 25 2021 OHZ027-036-037-047-261200- /O.CON.KCLE.FR.Y.0002.210426T0600Z-210426T1300Z/ Wyandot-Marion-Morrow-Knox- Including the cities of Upper Sandusky, Carey, Marion, Mount Gilead, Cardington, and Mount Vernon 908 PM EDT Sun Apr 25 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT MONDAY... * WHAT...Temperatures as low as 34 degrees will result in frost formation. * WHERE...Wyandot, Marion, Morrow and Knox Counties. * WHEN...From 2 AM to 9 AM EDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit http://www.weather.gov/cle
332 WWUS71 KCLE 260726 NPWCLE URGENT - WEATHER MESSAGE National Weather Service Cleveland OH 326 AM EDT Mon Apr 26 2021 OHZ027-036-037-047-261300- /O.CON.KCLE.FR.Y.0002.000000T0000Z-210426T1300Z/ Wyandot-Marion-Morrow-Knox- Including the cities of Upper Sandusky, Carey, Marion, Mount Gilead, Cardington, and Mount Vernon 326 AM EDT Mon Apr 26 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 34 degrees will result in frost formation. * WHERE...Wyandot, Marion, Morrow and Knox Counties. * WHEN...Through 9 AM EDT today. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. && $$ For more information from the National Weather Service visit http://www.weather.gov/cle
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 25, 4:03 AM EDT | Small Craft Advisory | CLE | 18 hr |
Nearby
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.