Alert archive / Ohio / Special Weather Statements in 2017

Special Weather Statement, NWS Northern Indiana

August 4, 2017Van Wert County, Ohio

NWS Northern Indiana issued this special weather statement at Aug 4, 2017, 5:13 AM EDT for Van Wert County, Ohio. It was in force for 32 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
Aug 4, 2017, 5:13 AM EDT (09:13 UTC)
Expired
Aug 4, 2017, 5:45 AM EDT
In force
32 min
Issued by
NWS Northern Indiana

County Van Wert County, OH

The radar

The Northern Indiana radar (KIWX), 111 km from the middle of the area, began a volume at 09:15 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.2 hours before the alert went out and 159 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 2017-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1228 joules per kilogram.LCLEL10008507005003002001001 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 2017-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.1939Sfc1 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
1228 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1268 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

734 
WWUS83 KIWX 040913
SPSIWX

Special Weather Statement
National Weather Service Northern Indiana
513 AM EDT FRI AUG 4 2017

INZ027-034-OHZ024-040945-
Jay-Adams-Van Wert-
513 AM EDT FRI AUG 4 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN ADAMS...NORTHEASTERN
JAY AND SOUTHWESTERN VAN WERT COUNTIES...

At 513 AM EDT, a strong thunderstorm was located over Geneva, or near
Berne, moving northeast at 40 mph.

Winds in excess of 40 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Van Wert, Berne, Geneva, Ohio City, Westchester, Willshire, Bryant,
Wren, Trinity, Ceylon, Glenmore, Dull, Abanaka, Jonestown, Linn
Grove, New Corydon and Schumm.

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 4062 8507 4064 8507 4089 8461 4068 8444
      4069 8446 4070 8446 4072 8448 4073 8480
      4053 8480 4047 8496
TIME...MOT...LOC 0913Z 239DEG 33KT 4059 8493 

$$

NWS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 8:12 PM EDTSpecial Weather StatementIWXJay33 min
Aug 3, 10:48 PM EDTSevere Thunderstorm WarningIWXLaPorte27 min
Aug 3, 11:12 PM EDTSpecial Weather StatementIWXMarshall, Saint Joseph, Starke48 min
Aug 3, 11:58 PM EDTSpecial Weather StatementIWXPulaski, Starke, White32 min
Aug 4, 12:03 AM EDTSpecial Weather StatementIWXElkhart, Kosciusko, Marshall27 min
Aug 4, 12:35 AM EDTSpecial Weather StatementIWXElkhart, LaGrange25 min
Aug 4, 1:08 AM EDTSpecial Weather StatementIWXLaGrange, Steuben37 min
Aug 3, 8:48 PM EDTSpecial Weather StatementIWXAllen, Putnam57 min
Aug 4, 5:42 AM EDTSevere Thunderstorm WarningIWXAllen, Putnam, Van Wert48 min

Nearby

Special Weather Statements in Ohio, 2017Every special weather statement in 2017

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.