Alert archive / Indiana / Special Weather Statements in 2018

Special Weather Statement, NWS Northern Indiana

April 4, 20185 counties in Indiana

NWS Northern Indiana issued this special weather statement at Apr 4, 2018, 5:31 AM EDT for 5 counties in Indiana. It was in force for 59 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 4, 2018, 5:31 AM EDT (09:31 UTC)
Expired
Apr 4, 2018, 6:30 AM EDT
In force
59 min
Issued by
NWS Northern Indiana

Counties Allen County, IN, DeKalb County, IN, Kosciusko County, IN, Noble County, IN, Whitley County, IN

The radar

The Northern Indiana radar (KIWX), 20 km from the middle of the area, began a volume at 09:37 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, 9.5 hours before the alert went out and 248 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 2018-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 67 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, Cncnati-Daytn, OH at 00:00Z on 2018-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 square meters per square second.1939587897Sfc1 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
67 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
1229 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
401 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 Apr 4, 4:18 AM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Apr 4, 4:18 AM EDT, 1 hour 13 minutes before
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Hazardous weather outlook, Apr 4, 5:09 AM EDT, 22 minutes before
Hazardous Weather Outlook
National Weather Service Northern Indiana
509 AM EDT Wed Apr 4 2018

INZ007-009-018-025>027-032>034-MIZ081-OHZ001-002-004-005-015-016-024-
025-050915-
Steuben-De Kalb-Allen IN-Huntington-Wells-Adams-Grant-Blackford-Jay-
Hillsdale-Williams-Fulton OH-Defiance-Henry-Paulding-Putnam-Van Wert-
Allen OH-
509 AM EDT Wed Apr 4 2018

This hazardous weather outlook is for portions of northern Indiana...
northwest Ohio and southwest Michigan.

.DAY ONE...Today and Tonight

A wind advisory is in effect this morning. For the latest
information, please see the latest Non Precipitation Weather Message
from this office.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Light snow is possible Thursday night into Friday with minor
accumulations possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

INZ003>006-008-012>017-020-022>024-MIZ077>080-050915-
La Porte-St. Joseph IN-Elkhart-Lagrange-Noble-Starke-Pulaski-
Marshall-Fulton IN-Kosciusko-Whitley-White-Cass IN-Miami-Wabash-
Berrien-Cass MI-St. Joseph MI-Branch-
509 AM EDT Wed Apr 4 2018 /409 AM CDT Wed Apr 4 2018/

This hazardous weather outlook is for portions of southwest Michigan
and northern Indiana.

.DAY ONE...Today and Tonight

Snow showers can be expected this morning, especially closer to Lake
Michigan. Some light accumulations on mainly grassy or elevated
surfaces is possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Light snow is possible Thursday night into Friday with minor
accumulations possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

LMZ043-046-080-050915-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-
line of lake.-
509 AM EDT Wed Apr 4 2018

This hazardous weather outlook is for portions of The Nearshore
Waters of Southeastern Lake Michigan and Lake Michigan.

.DAY ONE...Today and Tonight

A gale warning is in effect through this morning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

In the hours before

Special weather statement, Apr 4, 2:08 AM EDT, 3 hours 23 minutes before
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Special weather statement, Apr 4, 5:31 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 11:13 PM EDTRiver Flood WarningIWXAdams, Wells5 days
Apr 3, 11:13 PM EDTRiver Flood WarningIWXWells5 days
Apr 3, 11:13 PM EDTRiver Flood WarningIWXAdams, Allen24 hr
Apr 4, 3:41 AM EDTWind AdvisoryIWXAdams, Allen, Blackford, DeKalb, Grant, Jay and 2 more7 hr
Apr 4, 2:29 PM EDTRiver Flood WarningIWXAdams, Allen5 days
Apr 4, 4:04 PM EDTSmall Craft AdvisoryIWX13 hr
Apr 3, 11:13 PM EDTRiver Flood WarningIWXAllen, Paulding, Putnam69 hr

Nearby

Special Weather Statements in Indiana, 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.