Alert archive / Indiana / Special Weather Statements in 2021

Special Weather Statement, NWS Northern Indiana

June 18, 2021Miami County, Indiana

NWS Northern Indiana issued this special weather statement at Jun 18, 2021, 2:21 PM EDT for Miami County, Indiana. It was in force for 24 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: Jun 18, 2021, 2:21 PM EDT (18:21 UTC)
Expired: Jun 18, 2021, 2:45 PM EDT
In force: 24 min
Issued by: NWS Northern Indiana

County Miami County, IN

The radar

The Northern Indiana radar (KIWX), 83 km from the middle of the area, began a volume at 18:25 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, 6.4 hours before the alert went out and 215 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1125 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 1976 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

394 
WWUS83 KIWX 181821
SPSIWX

Special Weather Statement
National Weather Service Northern Indiana
221 PM EDT Fri Jun 18 2021

INZ022-023-181845-
Miami-Cass-
221 PM EDT Fri Jun 18 2021

...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN CASS AND
SOUTHWESTERN MIAMI COUNTIES...

At 221 PM EDT, a strong thunderstorm was located near Mexico, or near
Peru, moving east at 35 mph.

Winds in excess of 40 mph and half inch hail are possible with this
storm.

Locations impacted include...
Logansport, Peru, Grissom Afb, Walton, Bunker Hill, Mexico, Lincoln,
Wells, Galveston, Miami, Erie, Onward, Bennetts Switch, New Waverly,
Santa Fe, Wawpecong, Hoover, Peoria, Adamsboro and Nead.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4070 8637 4087 8622 4083 8595 4056 8594
      4056 8617
TIME...MOT...LOC 1821Z 287DEG 32KT 4076 8615 

$$

HAIL...0.50IN
WIND...40MPH

JAL

The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 5:53 AM EDT	Special Marine Warning	IWX		82 min
Jun 18, 6:39 AM EDT	Special Weather Statement	IWX	LaPorte, Saint Joseph	66 min
Jun 18, 7:15 AM EDT	Special Weather Statement	IWX	Elkhart, LaGrange	45 min
Jun 18, 7:56 AM EDT	Special Weather Statement	IWX	DeKalb, Steuben	64 min
Jun 18, 8:22 AM EDT	Special Weather Statement	IWX	Adams, Allen, Wells	53 min
Jun 18, 2:45 PM EDT	Special Weather Statement	IWX	Grant, Miami	45 min
Jun 18, 2:52 PM EDT	Severe Thunderstorm Warning	IWX	Grant, Huntington, Miami, Wabash	38 min
Jun 18, 3:28 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Wabash, Wells	47 min
Jun 18, 3:34 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Jay, Wells	41 min
Jun 18, 3:54 PM EDT	Tornado Warning	IWX	Jay	19 min
Jun 18, 3:58 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Jay	47 min
Jun 18, 4:16 PM EDT	Severe Thunderstorm Warning	IWX	Jay	13 min
Jun 18, 4:48 PM EDT	Severe Thunderstorm Warning	IWX	Jay	18 min
Jun 18, 6:48 PM EDT	Special Weather Statement	IWX	Jay	27 min
Jun 18, 6:25 AM EDT	Special Weather Statement	IWX	Cass	65 min
Jun 18, 7:01 AM EDT	Special Weather Statement	IWX	Branch, Saint Joseph	59 min

Nearby

Special Weather Statements in Indiana, 2021 Every 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.