Alert archive / Indiana / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Indianapolis, IN

July 24, 2021Fountain County, Warren County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 24, 2021, 10:00 PM EDT for Fountain County, Warren County, Indiana. It was in force for 30 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, 10:00 PM EDT (02:00 UTC)
Expired
Jul 24, 2021, 10:30 PM EDT
In force
30 min
Issued by
NWS Indianapolis, IN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Fountain County, IN, Warren County, IN

The radar

The Indianapolis radar (KIND), 101 km from the middle of the area, began a volume at 02:00 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, 2.0 hours before the alert went out and 119 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.

126 
WUUS53 KIND 250200
SVRIND
INC045-171-250230-
/O.NEW.KIND.SV.W.0056.210725T0200Z-210725T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Indianapolis IN
1000 PM EDT Sat Jul 24 2021

The National Weather Service in Indianapolis has issued a

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

* Until 1030 PM EDT.

* At 959 PM EDT, a severe thunderstorm was located near Williamsport,
  or 17 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 be near...
  Williamsport and Attica around 1010 PM EDT.

Other locations in the path of this severe thunderstorm include
Newtown.

This includes Interstate 74 between mile markers 10 and 13.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4040 8709 4021 8709 4010 8733 4028 8745
TIME...MOT...LOC 0159Z 315DEG 23KT 4032 8735 

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

50
2 follow-up statements
555 
WWUS53 KIND 250221
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1021 PM EDT Sat Jul 24 2021

INC045-171-250230-
/O.CON.KIND.SV.W.0056.000000T0000Z-210725T0230Z/
Fountain IN-Warren IN-
1021 PM EDT Sat Jul 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR NORTHERN FOUNTAIN AND CENTRAL WARREN COUNTIES...

At 1021 PM EDT, a severe thunderstorm was located near Williamsport,
or 19 miles south of Otterbein, moving southeast at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
  Newtown.

This includes Interstate 74 between mile markers 10 and 13.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4040 8709 4021 8709 4010 8733 4028 8745
TIME...MOT...LOC 0221Z 315DEG 23KT 4022 8722 

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

50
189 
WWUS53 KIND 250230
SVSIND

Severe Weather Statement
National Weather Service Indianapolis IN
1030 PM EDT Sat Jul 24 2021

INC045-171-250239-
/O.EXP.KIND.SV.W.0056.000000T0000Z-210725T0230Z/
Fountain IN-Warren IN-
1030 PM EDT Sat Jul 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FOUNTAIN AND CENTRAL
WARREN COUNTIES WILL EXPIRE AT 1030 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 are still possible with this thunderstorm.

LAT...LON 4040 8709 4021 8709 4010 8733 4028 8745
TIME...MOT...LOC 0229Z 315DEG 23KT 4020 8719 

$$

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, 9:36 PM EDTSevere Thunderstorm WarningINDWarren39 min
Jul 24, 9:46 PM EDTSpecial Weather StatementINDCarroll29 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.