Lewis and Clark County

Alerts in effect

Alerts covering all or part of Lewis and Clark County.

No active alerts in Lewis and Clark County. Checked 67 sec ago.

Outlook for the days ahead

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

Rainfall forecast

• Day 1 (24 hours): no measurable rain forecast in Lewis and Clark County issued Oct 2, 5:41 AM UTC · Weather Prediction Center
• Days 1–3 (72 hours): no measurable rain forecast in Lewis and Clark County issued Oct 2, 5:53 AM UTC · Weather Prediction Center
• Days 1–7: no measurable rain forecast in Lewis and Clark County issued Oct 2, 5:54 AM UTC · Weather Prediction Center

River gauges

• Dearborn River near Craig
  NowNo flooding3.09 ftOct 2, 1:15 AM MDT
• Little Prickly Pear Creek at Wolf Creek
  NowFlood stages not defined2.79 ftOct 2, 12:45 AM MDT
• Missouri River at Canyon Ferry Reservoir
  NowNo flooding3784.81 ftOct 2, 1:00 AM MDT
• Missouri River at Helena Valley Reservoir
  NowNo flooding3819.11 ftOct 2, 1:15 AM MDT
• Missouri River below Hauser Dam near Helena
  NowFlood stages not defined3.72 ftOct 2, 1:00 AM MDT
• Missouri River below Holter Dam near Wolf Creek
  NowFlood stages not defined3.31 ftOct 2, 12:45 AM MDT
• North Fork Sun River near Augusta
  NowNo flooding3.48 ftOct 2, 12:30 AM MDT
• South Fork Sun River near Augusta
  NowFlood stages not defined1.19 ftOct 2, 1:15 AM MDT