Alert archive / Indiana / Frost Advisories in 2021
Frost Advisory 2, NWS Indianapolis, IN
NWS Indianapolis, IN issued this frost advisory at Apr 22, 2021, 6:21 PM EDT for 10 counties in Indiana. It took effect at Apr 23, 2021, 1:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 22, 2021, 6:21 PM EDT (22:21 UTC)
- In effect from
- Apr 23, 2021, 1:00 AM EDT
- Expired
- Apr 23, 2021, 9:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS Indianapolis, IN
Counties Bartholomew County, IN, Decatur County, IN, Delaware County, IN, Hancock County, IN, Henry County, IN, Jennings County, IN, Madison County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN
The radar
The Indianapolis radar (KIND), 62 km from the middle of the area, began a volume at 22:23 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, 10.4 hours before the alert went out and 154 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
- 955 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
639 WWUS73 KIND 222221 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 621 PM EDT Thu Apr 22 2021 INZ040>042-048-049-056-057-064-065-072-231000- /O.NEW.KIND.FR.Y.0002.210423T0500Z-210423T1300Z/ Madison-Delaware-Randolph-Hancock-Henry-Shelby-Rush-Bartholomew- Decatur-Jennings- Including the cities of Anderson, Muncie, Winchester, Greenfield, New Castle, Shelbyville, Rushville, Columbus, Greensburg, and North Vernon 621 PM EDT Thu Apr 22 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT FRIDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Madison, Delaware, Randolph, Hancock, Henry, Shelby, Rush, Bartholomew, Decatur and Jennings Counties. * WHEN...From 1 AM to 9 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/ind
2 follow-up statements
864 WWUS73 KIND 230737 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 337 AM EDT Fri Apr 23 2021 INZ040>042-048-049-056-057-064-065-072-231300- /O.CON.KIND.FR.Y.0002.000000T0000Z-210423T1300Z/ Madison-Delaware-Randolph-Hancock-Henry-Shelby-Rush-Bartholomew- Decatur-Jennings- Including the cities of Anderson, Muncie, Winchester, Greenfield, New Castle, Shelbyville, Rushville, Columbus, Greensburg, and North Vernon 337 AM EDT Fri Apr 23 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Madison, Delaware, Randolph, Hancock, Henry, Shelby, Rush, Bartholomew, Decatur and Jennings Counties. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ For more information from the National Weather Service visit https://weather.gov/ind
580 WWUS73 KIND 231258 NPWIND URGENT - WEATHER MESSAGE National Weather Service Indianapolis IN 858 AM EDT Fri Apr 23 2021 INZ040>042-048-049-056-057-064-065-072-231400- /O.EXP.KIND.FR.Y.0002.000000T0000Z-210423T1300Z/ Madison-Delaware-Randolph-Hancock-Henry-Shelby-Rush-Bartholomew- Decatur-Jennings- Including the cities of Anderson, Muncie, Winchester, Greenfield, New Castle, Shelbyville, Rushville, Columbus, Greensburg, and North Vernon 858 AM EDT Fri Apr 23 2021 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... Temperatures have warmed up. $$ For more information from the National Weather Service visit https://weather.gov/ind
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.