St. Lawrence County

Alerts in effect

Alerts covering all or part of St. Lawrence County.

No active alerts in St. Lawrence County. Checked 53 sec ago.

Outlook for the days ahead

• Severe Thunderstorm Outlook, Day 1: no risk area over St. Lawrence County until Oct 3, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 1: no risk area over St. Lawrence County until Oct 3, 12:00 PM UTC · Weather Prediction Center
• Severe Thunderstorm Outlook, Day 2: no risk area over St. Lawrence County until Oct 4, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 2: no risk area over St. Lawrence County until Oct 4, 12:00 PM UTC · Weather Prediction Center
• Severe Thunderstorm Outlook, Day 3: no risk area over St. Lawrence County until Oct 5, 12:00 PM UTC · Storm Prediction Center
• Excessive Rainfall Outlook, Day 3: no risk area over St. Lawrence County until Oct 4, 12:00 PM UTC · Weather Prediction Center
• Excessive Rainfall Outlook, Day 4: no risk area over St. Lawrence County until Oct 6, 12:00 PM UTC · Weather Prediction Center
• Excessive Rainfall Outlook, Day 5: no risk area over St. Lawrence County until Oct 7, 12:00 PM UTC · Weather Prediction Center

Rainfall forecast

• Day 1 (24 hours): highest in St. Lawrence County, 0.25 to 0.5 inches issued Oct 2, 5:41 AM UTC · Weather Prediction Center
• Days 1–3 (72 hours): highest in St. Lawrence County, 0.5 to 0.75 inches issued Oct 2, 5:53 AM UTC · Weather Prediction Center
• Days 1–7: highest in St. Lawrence County, 0.75 to 1 inch issued Oct 2, 5:54 AM UTC · Weather Prediction Center

River gauges

• Grass River at Chase Mills
  NowNo flooding4.41 ftOct 2, 3:00 AM EDTForecastNo flooding4.6 ftOct 2, 8:00 PM EDT
• Grass River at Massena
  NowObservation not currentForecastFlood stages not defined0.4 ftOct 3, 8:00 PM EDT
• Oswegatchie River near Heuvelton
  NowNo flooding0.9 ftOct 2, 3:15 AM EDTForecastNo flooding1.3 ftOct 3, 8:00 PM EDT
• Oswegatchie River near Ogdensburg
  NowObservation not currentForecastFlood stages not defined0.9 ftOct 4, 8:00 AM EDT
• Oswegatchie River near Oswegatchie
  NowFlood stages not defined1.91 ftOct 2, 3:00 AM EDT
• Raquette River at Massena Springs
  NowObservation not currentForecastFlood stages not defined0.5 ftOct 2, 8:00 AM EDT
• Raquette River at Piercefield
  NowNo flooding2.95 ftOct 2, 2:45 AM EDTForecastNo flooding2.9 ftOct 3, 2:00 AM EDT
• Raquette River at Raymondville
  NowFlood stages not defined1.7 ftOct 2, 2:30 AM EDTForecastFlood stages not defined1.6 ftOct 2, 8:00 AM EDT