Alert archive / Kentucky / Frost Advisories in 2021
Frost Advisory 5, NWS Jackson, KY
NWS Jackson, KY issued this frost advisory at May 7, 2021, 4:17 PM EDT for 4 counties in Kentucky. It took effect at May 8, 2021, 5:00 AM EDT. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 7, 2021, 4:17 PM EDT (20:17 UTC)
- In effect from
- May 8, 2021, 5:00 AM EDT
- Expired
- May 8, 2021, 8:02 AM EDT
- In force
- 3 hr
- Issued by
- NWS Jackson, KY
Counties Bath County, KY, Fleming County, KY, Montgomery County, KY, Rowan County, KY
The radar
The Jackson,KY radar (KJKL), 74 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 139 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
- 744 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
985 WWUS73 KJKL 072017 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 417 PM EDT Fri May 7 2021 KYZ044-050>052-081000- /O.NEW.KJKL.FR.Y.0005.210508T0900Z-210508T1300Z/ Fleming-Montgomery-Bath-Rowan- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, and Morehead 417 PM EDT Fri May 7 2021 ...FROST ADVISORY IN EFFECT FROM 5 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures will fall to around 34 in the coldest valleys around dawn, allowing frost to develop. * WHERE...Fleming, Montgomery, Bath and Rowan Counties. * WHEN...The Frost Advisory is in effect From 5 AM to 9 AM EDT Saturday. * IMPACTS...Frost could damage or kill sensitive outdoor vegetation if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps to protect tender plants from the cold. && $$ HAL
2 follow-up statements
947 WWUS73 KJKL 080850 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 450 AM EDT Sat May 8 2021 KYZ044-050>052-081300- /O.CON.KJKL.FR.Y.0005.210508T0900Z-210508T1300Z/ Fleming-Montgomery-Bath-Rowan- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, and Morehead 450 AM EDT Sat May 8 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures will fall to around 35 in the coldest valleys around dawn, allowing frost to develop. * WHERE...Fleming, Montgomery, Bath and Rowan Counties. * WHEN...The Frost Advisory is in effect until 9 AM EDT this morning. * IMPACTS...Frost could damage or kill sensitive outdoor vegetation if left unprotected. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
525 WWUS73 KJKL 081202 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 802 AM EDT Sat May 8 2021 KYZ044-050>052-081315- /O.CAN.KJKL.FR.Y.0005.000000T0000Z-210508T1300Z/ Fleming-Montgomery-Bath-Rowan- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, and Morehead 802 AM EDT Sat May 8 2021 ...FROST ADVISORY IS CANCELLED... Temperatures have risen into the upper 30s and lower 40s, ending the threat for frost. Therefore, the Frost Advisory that was in effect until 9 AM EDT has been cancelled. $$ JP
Nearby
Frost Advisories in Kentucky, 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.