Alert Details

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Alert Information 100.0%* County Coverage

Special Weather Statement issued April 17 at 9:29AM EDT by NWS Northern Indiana

Event Type

Special Weather Statement

Status

Actual EXPIRED

Severity

Moderate

Urgency

Expected

Certainty

Observed

Message Type

Alert

Description

While visibility in many areas has already improved, portions of far southern Lower Michigan into northwestern Ohio continue to see some lingering fog, locally dense in some locations. As temperatures warm, the fog is expected to lift and dissipate through the morning. Motorists should use caution if encountering areas of dense fog and expected rapidly changing visibilities.

Affected Areas

Steuben; St. Joseph; Branch; Hillsdale; Williams; Fulton; Defiance; Henry; Paulding; Putnam

SAME Codes:

018151 Steuben County, IN

026149 St. Joseph County, MI

026023 Branch County, MI

026059 Hillsdale County, MI

039171 Williams County, OH

039051 Fulton County, OH

039039 Defiance County, OH

039069 Henry County, OH

039125 Paulding County, OH

039137 Putnam County, OH

UGC: INZ007 MIZ079 MIZ080 MIZ081 OHZ001 OHZ002 OHZ004 OHZ005 OHZ015 OHZ016

This covers virtually all emergency service districts, townships, and municipalities within the county.

Alert Coverage Map

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Alert Area Affected Boundaries

County-wide coverage shown

Timing

Alert Sent:

2026-04-17 09:29 EDT
09:29 AM EDT

Onset:

2026-04-17T09:29:00-04:00

Expires:

2026-04-17 11:00 EDT
11:00 AM EDT

Added:

2026-04-17 09:32 EDT
09:32 AM EDT

Updated:

2026-04-17 12:37 EDT
12:37 PM EDT

Times in America/New_York. Auto-adjusts for daylight saving.

Technical Details

Alert Identifier
urn:oid:2.49.0.1.840.0.b46965e723492d98f1993d6346e1a5887a62de01.001.1

Database ID
#476

Scope Public

Category Met

Coverage Type County-Wide

Estimated Coverage 100.0% of Putnam County — approx. 484.2 sq mi Estimated from SAME broadcast area, not the storm polygon.

Source times converted from NWS format to local Eastern Time.

Emergency Service Coverage - All County Boundaries

Major County Impact

This alert covers 100.0% of Putnam County (~484.2 sq mi) , affecting most emergency service boundaries.

Coverage estimated from SAME broadcast area. Recalculate intersections to use the storm polygon.

Coverage by Service Type:

Boundary Analysis Pending

Alert geometry exists (100.0% county coverage), but service boundary intersections have not been calculated yet.

100.0%

Major County Coverage

~484.2 sq mi affected

* Estimated from SAME broadcast area.

NOAA Alert Details

Alert Origin

Originator NWS Northern Indiana

Sender ID w-nws.webmaster@noaa.gov

Scope Public

Category Met

Effective 2026-04-17T09:29:00-04:00

Language en-US

Web http://www.weather.gov

Alert Feed

https://api.weather.gov/alerts/active?zone=OHC063,OHC003,OHZ015,OHC173,OHZ024,OHZ017,OHZ005,OHC125,OHZ025,OHZ016,OHC161,OHC039,OHC069,OHC137,OHZ006,OHZ004

NOAA

EAS Parameters

EAS Originator (EAS-ORG) WXR — National Weather Service

Block Channels EAS NWEM CMAS

Geocodes

SAME Geocodes

018151 Steuben County, IN

026149 St. Joseph County, MI

026023 Branch County, MI

026059 Hillsdale County, MI

039171 Williams County, OH

039051 Fulton County, OH

039039 Defiance County, OH

039069 Henry County, OH

039125 Paulding County, OH

039137 Putnam County, OH

UGC Codes INZ007 MIZ079 MIZ080 MIZ081 OHZ001 OHZ002 OHZ004 OHZ005 OHZ015 OHZ016

Affected Zones INZ007 MIZ079 MIZ080 MIZ081 OHZ001 OHZ002 OHZ004 OHZ005 OHZ015 OHZ016

Event Codes

SAME SPS

NationalWeatherService SPS

Patchy Dense Fog Expected to Dissipate This Morning

NWS Parameters

AWIPSidentifier SPSIWX

WMOidentifier WWUS83 KIWX 171329

EAS Forwarding Status

Not Forwarded

Reason Suppressed event Special Weather Statement

Actions

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Raw CAP Alert Data

Original JSON data received from NOAA National Weather Service

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    "category": "Met",
    "certainty": "Observed",
    "code": "IPAWSv1.0",
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    "instruction": null,
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    "messageType": "Alert",
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    "sent": "2026-04-17T09:29:00-04:00",
    "severity": "Moderate",
    "source": "NOAA",
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Source: NOAA
Origin URI: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b46965e723492d98f1993d6346e1a5887a62de01.001.1
Last Updated: 2026-04-17 12:37 EDT (16:37 UTC)