Alert archive / Indiana / Freeze Warnings in 2021

Freeze Warning 4, NWS Indianapolis, IN

April 19, 202139 counties in Indiana

NWS Indianapolis, IN issued this freeze warning at Apr 19, 2021, 3:58 PM EDT for 39 counties in Indiana. It took effect at Apr 20, 2021, 10:00 PM EDT. It was in force for 12 hr. 60 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 19, 2021, 3:58 PM EDT (19:58 UTC)
In effect from
Apr 20, 2021, 10:00 PM EDT
Expired
Apr 21, 2021, 10:00 AM EDT
In force
12 hr
Issued by
NWS Indianapolis, IN
All 39 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 15 km from the middle of the area, began a volume at 19:58 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.

What was reported inside it

TimeReportWhereRemark
Apr 20, 10:08 PM EDTSNOW 1.22 Nw Straughn, IN
Apr 20, 10:35 PM EDTSNOW 21 Sse Indianapolis Int', IN
Apr 20, 10:35 PM EDTSNOW 33 Nw Fishers, INMAINLY ON GRASSY AND ELEVATED SURFACES.
Apr 20, 11:20 PM EDTSNOW 3.72 N Country Club Height, IN
Apr 20, 11:36 PM EDTSNOW 3.53 Ne Fishers, IN
Apr 20, 11:58 PM EDTSNOW 0.71 Sw Farmersburg, INCO-OP OBSERVER STATION FMBI3 0.9 SW FARMERSBURG.
Apr 20, 11:59 PM EDTSNOW 3.52 S Castleton, INCOCORAHS STATION IN-MR-3 CASTLETON 1.7 S.
Apr 21, 4:30 AM EDTSNOW 2.51 Ssw Taylorsville, INCOCORAHS STATION IN-BW-11 TAYLORSVILLE 0.8 SSW.
Apr 21, 5:30 AM EDTSNOW 3.14 W Atlanta, INCOCORAHS STATION IN-TN-1 ATLANTA 4.4 W.
Apr 21, 5:30 AM EDTSNOW 3.14 W Atlanta, INCO-OP OBSERVER STATION TPTI3 5.1 SE GOLDSMITH.
Apr 21, 5:30 AM EDTSNOW 3.54 W Lebanon, INCOCORAHS STATION IN-BN-35 LEBANON 4.4 W.
Apr 21, 5:30 AM EDTSNOW 3.55 Nne Advance, INCO-OP OBSERVER STATION LEBI3 LEBANON 6 W.
Apr 21, 5:47 AM EDTSNOW 0.83 Ene Jasonville, INCOCORAHS STATION IN-CY-4 JASONVILLE 4.0 ENE.
Apr 21, 6:00 AM EDTSNOW 12 Nne Columbus, INCOCORAHS STATION IN-BW-16 COLUMBUS 1.9 NNE.
Apr 21, 6:00 AM EDTSNOW 1.83 Sw Thorntown, INCOCORAHS STATION IN-BN-17 THORNTOWN 3.4 SW.
Apr 21, 6:00 AM EDTSNOW 2.61 Nw Avon, INCOCORAHS STATION IN-HS-4 BROWNSBURG 4.6 S.
Apr 21, 6:00 AM EDTSNOW 2.63 Sse Beanblossom, INCOCORAHS STATION IN-BR-5 (W9DBA)MORGANTOWN 6.7 SSE.
Apr 21, 6:00 AM EDTSNOW 31 Ene Rushville, INCOCORAHS STATION IN-RS-9 RUSHVILLE 0.7 ENE.
Apr 21, 6:00 AM EDTSNOW 4.41 Nnw New Market, INCO-OP OBSERVER STATION CWVI3 1.1 NW NEW MARKET.
Apr 21, 6:10 AM EDTSNOW 2.51 Ssw Gessie, INCO-OP OBSERVER STATION PYVI3 0.7 SW GESSIE.
Apr 21, 6:15 AM EDTSNOW 1.71 W Meridian Hills, INCOCORAHS STATION IN-MR-139 INDIANAPOLIS 7.8 N.
Apr 21, 6:30 AM EDTSNOW 1.22 Ene Stone Head, INCOCORAHS STATION IN-BR-6 NASHVILLE 7.8 SE.
Apr 21, 6:30 AM EDTSNOW 1.31 N Owensburg, INCOCORAHS STATION IN-GN-9 SPRINGVILLE 6.0 W.
Apr 21, 6:58 AM EDTSNOW 24 W Greenwood, INCOCORAHS STATION IN-JH-32 GREENWOOD 3.8 W.
Apr 21, 7:00 AM EDTSNOW 0.52 Ne Columbus, INCOCORAHS STATION IN-BW-14 (WD9HTN)COLUMBUS 2.2 NE.
Apr 21, 7:00 AM EDTSNOW 0.54 Nnw Bargersville, INCOCORAHS STATION IN-JH-37 GREENWOOD 4.9 SW.
Apr 21, 7:00 AM EDTSNOW 0.56 S Lacy, INCO-OP OBSERVER STATION SOLI3 SHOALS 8 S.
Apr 21, 7:00 AM EDTSNOW 0.62 Nw Washington, INCOCORAHS STATION IN-DV-1 WASHINGTON 1.5 NW.
Apr 21, 7:00 AM EDTSNOW 0.71 S Plainville, INCOCORAHS STATION IN-DV-12 PLAINVILLE 1.3 S.
Apr 21, 7:00 AM EDTSNOW 0.81 Nw Broad Ripple, INCOCORAHS STATION IN-MR-48 INDIANAPOLIS 6.7 N.
Apr 21, 7:00 AM EDTSNOW 0.82 Sse Franklin, INCO-OP OBSERVER STATION FKLI3 1.8 SE FRANKLIN.
Apr 21, 7:00 AM EDTSNOW 0.93 S Columbus, INCO-OP OBSERVER STATION CLBI3 COLUMBUS 2 S.
Apr 21, 7:00 AM EDTSNOW 0.93 W Greenwood, INCOCORAHS STATION IN-JH-31 GREENWOOD 2.6 W.
Apr 21, 7:00 AM EDTSNOW 0.9Riley, INCOCORAHS STATION IN-VG-23 RILEY 0.3 NNW.
Apr 21, 7:00 AM EDTSNOW 11 S Ellettsville, INCOCORAHS STATION IN-MN-35 1 S ELLETTSVILLE.
Apr 21, 7:00 AM EDTSNOW 11 W Ellettsville, INCOCORAHS STATION IN-MN-23 (KC9RPX)ELLETTSVILLE 0.5 W.
Apr 21, 7:00 AM EDTSNOW 13 Ssw Poland, INCO-OP OBSERVER STATION BWLI3 2.7 SW POLAND.
Apr 21, 7:00 AM EDTSNOW 1Spencer, INCO-OP OBSERVER STATION SPNI3 SPENCER.
Apr 21, 7:00 AM EDTSNOW 1.13 E Vincennes, INCO-OP OBSERVER STATION VENI3 VINCENNES 4 E.
Apr 21, 7:00 AM EDTSNOW 1.22 Sw Judson, INCOCORAHS STATION IN-PR-3 ROCKVILLE 3.6 ENE.
Apr 21, 7:00 AM EDTSNOW 1.41 Nw West Lafayette, INCOCORAHS STATION IN-TP-82 WEST LAFAYETTE 1.1 NW.
Apr 21, 7:00 AM EDTSNOW 1.42 Se Martinsville, INCOCORAHS STATION IN-MG-21 MARTINSVILLE 2.3 SE.
Apr 21, 7:00 AM EDTSNOW 1.51 Ssw Fairland, INCOCORAHS STATION IN-SH-20 (KB9RBB)FAIRLAND 0.9 SSW.
Apr 21, 7:00 AM EDTSNOW 1.5Covington, INCOCORAHS STATION IN-FN-3 COVINGTON 0.4 WNW.
Apr 21, 7:00 AM EDTSNOW 1.61 W Oolitic, INCO-OP OBSERVER STATION OTCI3 1.7 S AVOCA.
Apr 21, 7:00 AM EDTSNOW 1.85 Ese Freedom, INCOCORAHS STATION IN-OW-9 SPENCER 7.0 S.
Apr 21, 7:00 AM EDTSNOW 22 S Arlington, INCOCORAHS STATION IN-RS-5 HOMER 0.4 NE.
Apr 21, 7:00 AM EDTSNOW 24 E Kokomo, INCOCORAHS STATION IN-HW-20 (KC9DHF)KOKOMO 4.4 E.
Apr 21, 7:00 AM EDTSNOW 24 Ene Indian Heights, INCOCORAHS STATION IN-HW-3 KOKOMO 4.6 ESE.
Apr 21, 7:00 AM EDTSNOW 24 W Wilkinson, INCOCORAHS STATION IN-HN-34 (N9MRC)WILKINSON 4.1 W.
Apr 21, 7:00 AM EDTSNOW 2Morristown, INCO-OP OBSERVER STATION MSTI3 MORRISTOWN.
Apr 21, 7:00 AM EDTSNOW 2.11 Ene Mooresville, INCOCORAHS STATION IN-MG-18 MOORESVILLE 3.8 NE.
Apr 21, 7:00 AM EDTSNOW 2.1Flora, INCO-OP OBSERVER STATION FLOI3 FLORA.
Apr 21, 7:00 AM EDTSNOW 2.22 Nnw Avon, INCOCORAHS STATION IN-HS-21 AVON 1.6 NNW.
Apr 21, 7:00 AM EDTSNOW 2.24 Ene Lacy, INCOCORAHS STATION IN-MT-3 SHOALS 4.0 E.
Apr 21, 7:00 AM EDTSNOW 2.41 Wsw Franklin, INCO-OP OBSERVER STATION GCLI3 FRANKLIN 1 W.
Apr 21, 7:00 AM EDTSNOW 2.51 N Clermont, INCOCORAHS STATION IN-MR-190 INDIANAPOLIS 9.8 WNW.
Apr 21, 7:00 AM EDTSNOW 2.52 Nnw Windfall, INCOCORAHS STATION IN-TN-13 2 NNW WINDFALL.
Apr 21, 7:00 AM EDTSNOW 2.52 S Lafayette, INCOCORAHS STATION IN-TP-22 LAFAYETTE 2.2 S.
Apr 21, 7:00 AM EDTSNOW 2.53 Ne Carmel, INCOCORAHS STATION IN-HM-84 CARMEL 2.8 NE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.0 hours before the alert went out and 194 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2021-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2021-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2000 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

496 
WWUS73 KIND 191958
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
358 PM EDT Mon Apr 19 2021

INZ021-028>031-035>049-051>057-060>065-067>072-200400-
/O.UPG.KIND.FZ.A.0003.210421T0200Z-210421T1400Z/
/O.NEW.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
358 PM EDT Mon Apr 19 2021

...FREEZE WARNING IN EFFECT FROM 10 PM TUESDAY TO 10 AM EDT
WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Central Indiana.

* WHEN...From 10 PM Tuesday to 10 AM EDT Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...Another night of sub-freezing temperatures
  is likely Wednesday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

AGM
6 follow-up statements
407 
WWUS73 KIND 200207
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
1007 PM EDT Mon Apr 19 2021

INZ021-028>031-035>049-051>057-060>065-067>072-201015-
/O.CON.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
1007 PM EDT Mon Apr 19 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM TUESDAY TO 10 AM
EDT WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...From 10 PM Tuesday to 10 AM EDT Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...Another night of sub-freezing temperatures
  is likely Wednesday night.
.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind
414 
WWUS73 KIND 200656
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
256 AM EDT Tue Apr 20 2021

INZ021-028>031-035>049-051>057-060>065-067>072-201900-
/O.NEW.KIND.FZ.A.0004.210422T0500Z-210422T1400Z/
/O.CON.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
256 AM EDT Tue Apr 20 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EDT WEDNESDAY...
...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 29 expected. For the Freeze Watch, sub-freezing 
  temperatures as low as 30 possible.

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...For the Freeze Warning, from 10 PM this evening to 10 
  AM EDT Wednesday. For the Freeze Watch, from late Wednesday 
  night through Thursday morning.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind
229 
WWUS73 KIND 201512
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
1112 AM EDT Tue Apr 20 2021

INZ021-028>031-035>049-051>057-060>065-067>072-202315-
/O.CON.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
/O.CON.KIND.FZ.A.0004.210422T0500Z-210422T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
1112 AM EDT Tue Apr 20 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EDT WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 29 expected.  For the Freeze Watch, sub-freezing 
  temperatures as low as 30 possible.

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...For the Freeze Warning, from 10 PM this evening to 10 
  AM EDT Wednesday. For the Freeze Watch, from late Wednesday 
  night through Thursday morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

AGM
531 
WWUS73 KIND 201959
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
359 PM EDT Tue Apr 20 2021

INZ021-028>031-035>049-051>057-060>065-067>072-210400-
/O.CON.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
/O.CON.KIND.FZ.A.0004.210422T0500Z-210422T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
359 PM EDT Tue Apr 20 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EDT WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 26 expected. For the Freeze Watch, sub-freezing temperatures
  as low as 27 possible. 

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...For the Freeze Warning, from 10 PM this evening to 10 
  AM EDT Wednesday. For the Freeze Watch, from late Wednesday 
  night through Thursday morning.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

AGM
116 
WWUS73 KIND 210116
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
916 PM EDT Tue Apr 20 2021

INZ021-028>031-035>049-051>057-060>065-067>072-211000-
/O.CON.KIND.FZ.W.0004.210421T0200Z-210421T1400Z/
/O.CON.KIND.FZ.A.0004.210422T0500Z-210422T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
916 PM EDT Tue Apr 20 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 25 expected. For the Freeze Watch, sub-freezing temperatures
  as low as 27 possible.

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...For the Freeze Warning, from 10 PM this evening to 10 
  AM EDT Wednesday. For the Freeze Watch, from late Wednesday 
  night through Thursday morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind
438 
WWUS73 KIND 210646
NPWIND

URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
246 AM EDT Wed Apr 21 2021

INZ021-028>031-035>049-051>057-060>065-067>072-211900-
/O.UPG.KIND.FZ.A.0004.210422T0500Z-210422T1400Z/
/O.NEW.KIND.FZ.W.0005.210422T0500Z-210422T1400Z/
/O.CON.KIND.FZ.W.0004.000000T0000Z-210421T1400Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-
Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Clinton, Newport, Rockville, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Clay City, Spencer, 
Martinsville, Mooresville, Greenwood, Franklin, Shelbyville, 
Rushville, Sullivan, Linton, Bloomfield, Bloomington, Nashville, 
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals, 
Bedford, Mitchell, Seymour, Brownstown, and North Vernon
246 AM EDT Wed Apr 21 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
...FREEZE WARNING IN EFFECT FROM 1 AM TO 10 AM EDT THURSDAY...

* WHAT...For the first Freeze Warning, sub-freezing temperatures
  as low as 26. For the second Freeze Warning, sub-freezing
  temperatures as low as 29 expected.

* WHERE...Portions of central, east central, north central, 
  south central, southeast, southwest and west central Indiana.

* WHEN...For the first Freeze Warning, until 10 AM EDT this 
  morning. For the second Freeze Warning, from 1 AM to 10 AM EDT 
  Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 19, 3:09 AM EDTFreeze WatchINDBartholomew, Boone, Brown, Carroll, Clay, Clinton and 33 more13 hr

Nearby

Freeze Warnings in Indiana, 2021Every freeze warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.