Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 55, NWS Indianapolis, IN

July 24, 2021Warren County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 24, 2021, 9:36 PM EDT for Warren County, Indiana. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 24, 2021, 9:36 PM EDT (01:36 UTC)
Expired
Jul 24, 2021, 10:15 PM EDT
In force
39 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Warren County, IN

The radar

The Indianapolis radar (KIND), 120 km from the middle of the area, began a volume at 01:39 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

Lincoln, IL (KILX), launched 00:00Z, 1.6 hours before the alert went out and 110 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 00:00Z on 2021-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2275 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 square meters per square second.193958Sfc1 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
2275 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1261 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
1.1
Supercell composite
13.1

Open this sounding in Storm Lab

The text

As transmitted.

330 
WUUS53 KIND 250136
SVRIND
INC171-250215-
/O.NEW.KIND.SV.W.0055.210725T0136Z-210725T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
936 PM EDT Sat Jul 24 2021

The National Weather Service in Indianapolis has issued a

* Severe Thunderstorm Warning for...
  Warren County in west central Indiana...

* Until 1015 PM EDT.

* At 935 PM EDT, a severe thunderstorm was located near Boswell, or 9
  miles southwest of Fowler, moving southeast at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Tab around 950 PM EDT.

Other locations in the path of this severe thunderstorm include Pine
Village and Rainsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4048 8752 4047 8710 4039 8709 4024 8753
TIME...MOT...LOC 0135Z 328DEG 23KT 4053 8747 

HAIL...<.75IN
WIND...60MPH
 
$$

50
2 follow-up statements
253 
WWUS53 KIND 250200
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1000 PM EDT Sat Jul 24 2021

INC171-250215-
/O.CON.KIND.SV.W.0055.000000T0000Z-210725T0215Z/
Warren IN-
1000 PM EDT Sat Jul 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR WARREN COUNTY...

At 1000 PM EDT, a severe thunderstorm was located 7 miles northwest
of Williamsport, or 15 miles southwest of Otterbein, moving southeast
at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of
Warren County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4048 8752 4047 8710 4039 8709 4024 8753
TIME...MOT...LOC 0200Z 328DEG 23KT 4039 8736 

HAIL...<.75IN
WIND...60MPH
 
$$

50
481 
WWUS53 KIND 250212
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1012 PM EDT Sat Jul 24 2021

INC171-250222-
/O.EXP.KIND.SV.W.0055.000000T0000Z-210725T0215Z/
Warren IN-
1012 PM EDT Sat Jul 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR WARREN COUNTY WILL EXPIRE AT
1015 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds up to 50 mph are still possible with this thunderstorm.

LAT...LON 4048 8752 4047 8710 4039 8709 4024 8753
TIME...MOT...LOC 0212Z 328DEG 23KT 4033 8731 

$$

50

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 9:13 PM EDTSpecial Weather StatementINDCarroll32 min
Jul 24, 9:46 PM EDTSpecial Weather StatementINDCarroll29 min
Jul 24, 10:00 PM EDTSevere Thunderstorm WarningINDFountain, Warren30 min
Jul 24, 10:20 PM EDTSpecial Weather StatementINDClinton, Howard40 min
Jul 24, 11:22 PM EDTSpecial Weather StatementINDMontgomery23 min
Jul 25, 12:02 AM EDTSpecial Weather StatementINDParke28 min
Jul 25, 12:23 AM EDTAreal Flood AdvisoryINDParke, Putnam, Vermillion3 hr
Jul 25, 2:12 AM EDTAreal Flood AdvisoryINDClay, Vigo3 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2021Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.