Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Indianapolis, IN

April 7, 2021Lawrence County, Indiana

NWS Indianapolis, IN issued this special weather statement at Apr 7, 2021, 4:27 PM EDT for Lawrence County, Indiana. It was in force for 48 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
Apr 7, 2021, 4:27 PM EDT (20:27 UTC)
Expired
Apr 7, 2021, 5:15 PM EDT
In force
48 min
Issued by
NWS Indianapolis, IN

County Lawrence County, IN

The radar

The Indianapolis radar (KIND), 103 km from the middle of the area, began a volume at 20:27 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 12:00Z, 8.5 hours before the alert went out and 235 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 2021-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2021-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 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
56 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

316 
WWUS83 KIND 072027
SPSIND

Special Weather Statement
National Weather Service Indianapolis IN
427 PM EDT Wed Apr 7 2021
 
INZ070-072115-
Lawrence IN-
427 PM EDT Wed Apr 7 2021

...SIGNIFICANT WEATHER ADVISORY FOR LAWRENCE COUNTY UNTIL 515 PM
EDT...

At 427 PM EDT, Doppler radar was tracking a strong thunderstorm near
Bedford, moving northeast at 20 mph.

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

Locations impacted include...
Bedford, Mitchell, Oolitic, Heltonville, Williams, Spring Mill State
Park, Tunnelton and Bartlettsville.

LAT...LON 3874 8668 3877 8668 3899 8647 3899 8628
      3877 8628 3869 8640 3869 8655
TIME...MOT...LOC 2027Z 223DEG 16KT 3882 8647 

$$

TDUD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 2:24 PM EDTSpecial Weather StatementINDHendricks51 min
Apr 7, 2:58 PM EDTSpecial Weather StatementINDHamilton47 min
Apr 7, 3:35 PM EDTSpecial Weather StatementINDMartin40 min
Apr 7, 3:44 PM EDTSpecial Weather StatementINDMarion31 min
Apr 7, 3:51 PM EDTSpecial Weather StatementINDBoone39 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.