WGUS85 KBOU 012117 FLSBOU Flood Advisory National Weather Service Denver CO 317 PM MDT Thu Jul 1 2021 COC013-012245- /O.NEW.KBOU.FA.Y.0048.210701T2117Z-210701T2245Z/ /00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Boulder CO- 317 PM MDT Thu Jul 1 2021 The National Weather Service in Denver has issued a * Small Stream Flood Advisory for... North Central Boulder County in northeastern Colorado... * Until 445 PM MDT. * At 317 PM MDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause small stream flooding. * Some locations that will experience flooding include... Lyons. This includes the following streams and drainages... South Saint Vrain Creek, North Saint Vrain Creek, Dry Creek, Little Thompson River, Saint Vrain Creek and Left Hand Creek. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Heavy rainfall will cause minor flooding of small creeks, gulches, roads and roadside culverts in the Calwood burn area. The heavy rains could also trigger rock slides or debris flows. The main areas of concern are Heil Valley Ranch and Lefthand Creek just above US 36. && LAT...LON 4017 10538 4026 10528 4026 10525 4026 10521 4026 10517 4026 10515 4010 10528 4015 10539 $$ RPK