Alert archive / Michigan / Special Weather Statements in 2018

Special Weather Statement, NWS Northern Indiana

August 6, 2018Branch County, Michigan

NWS Northern Indiana issued this special weather statement at Aug 6, 2018, 2:15 PM EDT for Branch County, Michigan. It was in force for 45 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 6, 2018, 2:15 PM EDT (18:15 UTC)
Expired
Aug 6, 2018, 3:00 PM EDT
In force
45 min
Issued by
NWS Northern Indiana

County Branch County, MI

The radar

The Northern Indiana radar (KIWX), 85 km from the middle of the area, began a volume at 18:16 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

Detroit, MI (KDTX), launched 12:00Z, 6.3 hours before the alert went out and 157 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, Detroit, MI at 12:00Z on 2018-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2085 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, Detroit, MI at 12:00Z on 2018-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
2085 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this special weather statement went out at Aug 6, 1:50 PM EDT, 25 minutes earlier.

Area forecast discussion, Aug 6, 1:50 PM EDT, 25 minutes before
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    <section class="card" role="status" aria-live="polite">
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      <p id="message1">
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Hazardous weather outlook, Aug 6, 4:48 AM EDT, 9 hours 27 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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In the hours before

Special weather statement, Aug 6, 2:15 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Northern Indiana
215 PM EDT MON AUG 6 2018

MIZ080-081-061900-
Branch-Hillsdale-
215 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL BRANCH AND NORTHWESTERN
HILLSDALE COUNTIES...

At 215 PM EDT, a strong thunderstorm was located near Bronson, or 7
miles west of Coldwater, moving east at 30 mph.

Winds in excess of 40 mph are possible with this storm.

This storm will be near...
  Coldwater around 230 PM EDT.
  Quincy around 245 PM EDT.
  Reading around 255 PM EDT.
  Litchfield around 300 PM EDT.

Other locations impacted by this storm include Batavia, South Butler,
Girard, Long Lake, Marble Lake, Lake Of The Woods, Allen and Hodunk.

This includes Interstate 69 in Michigan between mile markers 7 and
19.

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.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4185 8519 4202 8522 4207 8471 4183 8471
TIME...MOT...LOC 1815Z 266DEG 26KT 4194 8516

JBALL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:31 PM EDTSevere Thunderstorm WarningIWXSteuben44 min
Aug 6, 5:42 PM EDTSpecial Weather StatementIWXAllen48 min
Aug 6, 6:08 PM EDTSpecial Marine WarningIWX37 min
Aug 6, 6:22 PM EDTSpecial Weather StatementIWXSteuben38 min
Aug 6, 6:25 PM EDTSpecial Weather StatementIWXLaPorte35 min
Aug 6, 6:26 PM EDTSpecial Weather StatementIWXStarke34 min
Aug 6, 6:29 PM EDTSevere Thunderstorm WarningIWXLaPorte, Starke46 min
Aug 6, 6:39 PM EDTSpecial Weather StatementIWXSaint Joseph51 min
Aug 6, 6:40 PM EDTSevere Thunderstorm WarningIWXSteuben35 min
Aug 6, 7:03 PM EDTSevere Thunderstorm WarningIWXElkhart, Saint Joseph24 min
Aug 6, 7:09 PM EDTSpecial Weather StatementIWXStarke36 min
Aug 6, 7:23 PM EDTSpecial Weather StatementIWXMarshall52 min
Aug 6, 7:24 PM EDTSpecial Weather StatementIWXPulaski51 min
Aug 6, 7:36 PM EDTAreal Flood AdvisoryIWXLaPorte, Marshall, Pulaski, Saint Joseph, Starke3 hr
Aug 6, 7:43 PM EDTSpecial Weather StatementIWXElkhart32 min
Aug 6, 4:15 PM EDTSevere Thunderstorm WarningIWXFulton, Williams60 min
Aug 6, 5:05 PM EDTSevere Thunderstorm WarningIWXFulton25 min
Aug 6, 6:11 PM EDTSpecial Weather StatementIWXFulton34 min
Aug 6, 7:00 PM EDTSpecial Weather StatementIWXFulton30 min
Aug 6, 7:31 PM EDTSpecial Weather StatementIWXFulton29 min
Aug 6, 2:54 PM EDTSpecial Weather StatementIWXHillsdale36 min
Aug 6, 3:51 PM EDTSevere Thunderstorm WarningIWXHillsdale24 min
Aug 6, 5:57 PM EDTSpecial Weather StatementIWXSaint Joseph48 min
Aug 6, 6:09 PM EDTSpecial Weather StatementIWXBerrien36 min
Aug 6, 6:14 PM EDTSevere Thunderstorm WarningIWXHillsdale46 min

Nearby

Special Weather Statements in Michigan, 2018Every special weather statement in 2018

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.