Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Indianapolis, IN

March 25, 2021Hamilton County, Marion County, Tipton County, Indiana

NWS Indianapolis, IN issued this special weather statement at Mar 25, 2021, 10:09 PM EDT for Hamilton County, Marion County, Tipton County, Indiana. It was in force for 36 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 25, 2021, 10:09 PM EDT (02:09 UTC)
Expired
Mar 25, 2021, 10:45 PM EDT
In force
36 min
Issued by
NWS Indianapolis, IN

Counties Hamilton County, IN, Marion County, IN, Tipton County, IN

The radar

The Indianapolis radar (KIND), 57 km from the middle of the area, began a volume at 02:10 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
Mar 25, 10:09 PM EDTHAIL 0.883 Wnw Meridian Hills, IN
Mar 25, 10:12 PM EDTHAIL 0.88Carmel, INTWO REPORTS OF NICKEL SIZE HAIL IN DOWNTOWN CARMEL RELAYED BY EMERGENCY MANAGER.
Mar 25, 10:17 PM EDTHAIL 0.254 Nw Carmel, INPEA SIZE HAIL LOCATED AT 146TH STREET AND SPRING MILL ROAD. RELAYED BY EMERGENCY MANAGEMENT.
Mar 25, 10:23 PM EDTHAIL 0.25Cicero, INRELAYED BY EMERGENCY MANAGEMENT.

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 2.2 hours before the alert went out and 207 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, Cncnati-Daytn, OH at 00:00Z on 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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, Cncnati-Daytn, OH at 00:00Z on 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 290 square meters per square second.1939587897117136156Sfc1 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
1 J/kg
Mixed-layer CIN
-281 J/kg
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
290 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

501 
WWUS83 KIND 260209
SPSIND

Special Weather Statement
National Weather Service Indianapolis IN
1009 PM EDT Thu Mar 25 2021
 
INZ031-037>040-047-260245-
Howard IN-Tipton IN-Madison IN-Boone IN-Hamilton IN-Marion IN-
1009 PM EDT Thu Mar 25 2021

...PENNY SIZED HAIL AND WINDS IN EXCESS OF 40 MPH EXPECTED...

At 1008 PM EDT, Doppler radar was tracking a strong thunderstorm near
Speedway, or 7 miles northwest of Indianapolis, moving northeast at
80 mph.

Penny size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Indianapolis, Carmel, Fishers, Noblesville, Lawrence, Zionsville,
Speedway, Elwood, Tipton, Windfall, Westfield, Cicero, Sheridan,
Frankton, Arcadia, Meridian Hills, Clermont, Atlanta, Rocky Ripple
and Orestes.

LAT...LON 4041 8586 4038 8586 4038 8578 4034 8568
      3976 8611 3983 8633 3992 8633 3992 8635
      4046 8600
TIME...MOT...LOC 0208Z 208DEG 69KT 3988 8620 

$$

AW

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 8:08 PM EDTSpecial Weather StatementINDDaviess22 min
Mar 25, 8:15 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Martin45 min
Mar 25, 8:43 PM EDTSevere Thunderstorm WarningINDGreene, Monroe, Morgan, Owen, Putnam47 min
Mar 25, 9:15 PM EDTSpecial Weather StatementINDHamilton, Marion45 min
Mar 25, 9:29 PM EDTSpecial Weather StatementINDMonroe, Morgan31 min
Mar 25, 9:46 PM EDTSpecial Weather StatementINDHoward, Tipton44 min
Mar 25, 9:47 PM EDTSevere Thunderstorm WarningINDBrown, Jackson, Lawrence, Monroe43 min

Nearby

Special Weather Statements in Indiana, 2021Every special weather statement 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.