Alert archive / Indiana / Frost Advisories in 2021
Frost Advisory 1, NWS Indianapolis, IN
NWS Indianapolis, IN issued this frost advisory at Apr 17, 2021, 3:44 PM EDT for 7 counties in Indiana. It took effect at Apr 18, 2021, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 17, 2021, 3:44 PM EDT (19:44 UTC)
- In effect from
- Apr 18, 2021, 2:00 AM EDT
- Expired
- Apr 18, 2021, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Indianapolis, IN
Counties Carroll County, IN, Delaware County, IN, Henry County, IN, Howard County, IN, Madison County, IN, Randolph County, IN, Tipton County, IN
The radar
The Indianapolis radar (KIND), 77 km from the middle of the area, began a volume at 19:44 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, 7.7 hours before the alert went out and 191 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
- 1486 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
244 WWUS73 KIND 171944 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 344 PM EDT Sat Apr 17 2021 INZ021-031-038-040>042-049-180345- /O.NEW.KIND.FR.Y.0001.210418T0600Z-210418T1300Z/ Carroll-Howard-Tipton-Madison-Delaware-Randolph-Henry- Including the cities of Delphi, Flora, Kokomo, Tipton, Anderson, Muncie, Winchester, and New Castle 344 PM EDT Sat Apr 17 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT SUNDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Carroll, Delaware, Henry, Howard, Madison, Randolph, and Tipton Counties. * WHEN...From 2 AM to 9 AM EDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/ind AGM
3 follow-up statements
335 WWUS73 KIND 180205 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 1005 PM EDT Sat Apr 17 2021 INZ021-031-038-040>042-049-181015- /O.CON.KIND.FR.Y.0001.210418T0600Z-210418T1300Z/ Carroll-Howard-Tipton-Madison-Delaware-Randolph-Henry- Including the cities of Delphi, Flora, Kokomo, Tipton, Anderson, Muncie, Winchester, and New Castle 1005 PM EDT Sat Apr 17 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT SUNDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Henry, Delaware, Madison, Randolph, Tipton, Carroll and Howard Counties. * WHEN...From 2 AM to 9 AM EDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/ind
642 WWUS73 KIND 180804 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 404 AM EDT Sun Apr 18 2021 INZ021-031-038-040>042-049-181300- /O.CON.KIND.FR.Y.0001.000000T0000Z-210418T1300Z/ Carroll-Howard-Tipton-Madison-Delaware-Randolph-Henry- Including the cities of Delphi, Flora, Kokomo, Tipton, Anderson, Muncie, Winchester, and New Castle 404 AM EDT Sun Apr 18 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Henry, Delaware, Madison, Randolph, Tipton, Carroll and Howard Counties. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/ind
387 WWUS73 KIND 181309 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 909 AM EDT Sun Apr 18 2021 INZ021-031-038-040>042-049-181415- /O.EXP.KIND.FR.Y.0001.000000T0000Z-210418T1300Z/ Carroll-Howard-Tipton-Madison-Delaware-Randolph-Henry- Including the cities of Delphi, Flora, Kokomo, Tipton, Anderson, Muncie, Winchester, and New Castle 909 AM EDT Sun Apr 18 2021 ...FROST ADVISORY HAS EXPIRED... Temperatures have warmed into the upper 30s to low 40s across the northeastern corner of central Indiana. $$ AGM
Nearby
Frost Advisories in Indiana, 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.