Enhanced Risk for Severe Thunderstorms Across the Upper Midwest; Flash Flooding Possible from the Upper Midwest to Southern Plains and Desert Southwest Through Friday
Portions of the Upper Midwest will see an increased threat for severe thunderstorms through this evening, with a few strong tornadoes possible. The same region remains on alert for additional flash flood concerns. Heavy rainfall may lead to flash flooding across the Desert Southwest today, and Southern Plains by Friday. Finally, Major-to-record river flooding continues across the Carolinas.
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| NWS Forecast for: Grand Haven to Whitehall MI (LMZ847) Issued by: National Weather Service Grand Rapids, MI Last Update: 959 AM EDT Thu Sep 20 2018 |  |
Rest Of Today: East winds 10 to 20 knots veering southeast late in the day. Showers and thunderstorms likely through early afternoon, then a slight chance of showers and thunderstorms in the afternoon. Areas of dense fog through the day. Waves around 1 foot. Tonight: South winds 15 to 25 knots increasing to 30 knots after midnight. Partly cloudy with a chance of showers and thunderstorms. Waves 3 to 5 feet building to 7 to 10 feet after midnight. Friday: West winds to 30 knots veering northwest late in the day. Partly sunny. A slight chance of showers and thunderstorms until midday. Waves 6 to 9 feet. Friday Night: North winds to 30 knots becoming northeast 10 to 20 knots after midnight. Partly cloudy. Waves 6 to 9 feet subsiding to 2 to 4 feet. | |
| Zone Forecast: Grand Haven to Whitehall MI (LMZ847) | |
Visit your local NWS office at: http://www.weather.gov/grr/ |