Updated May 1, 2023
Please read the ALERT data disclaimer and see note below concerning winter operations.
CAVEAT: All data obtained from this system is considered provisional. Always inspect raw data carefully to verify rainfall amounts, water level measurements and other information.
TYPE CODES & ABBREVIATIONS:
P=rain/precipitation, S=stage/water level, Wx=weather station, R=repeater, TB=tipping bucket, PT=pressure transducer, SE=shaft encoder, WS/WD=wind speed/direction, TX=transmitter, RF=radio frequency
| PROBLEMS |
| 4413 Fourmile at Salina out of service due to road construction |
| 4423 Bridge over Boulder Creek damaged by highway construction |
| 4843 SBC at Cannon Ditch out of service |
| 8802 Fourmile at Logan Mill Rd OOS due to road construction |
| DISCONTINUED STATIONS |
| 1330 Roslyn (P) |
| 1630 South Platte River at Dartmouth (S) |
| 1810 Sand Creek at mouth (PS) |
| 2190 Mestaa’ėhehe Mountain (Wx) |
| 1420 Diamond Hill (Wx) |
| NEW STATIONS |
| A2-10087 Rotolo Park (PS) |
| RAIN GAGES AFFECTED BY LAWN IRRIGATION | ||
| 420 Expo Park | 600 Harvard Gulch Park | 750 Quincy Reservoir |
| 430 Utah Park | 630 Temple Pond | 830 Side Creek Park |
| 500 Havana Park | 640 Goldsmith at Eastman | 850 Flying J Truck Plaza |
| 510 Virginia Court | 720 Confluence Pond | 1500 Powers Park |
| RAIN GAGES IMPACTED BY WILDLIFE | |
| 200 Leyden Lake | 220 Upper Leyden |
| 410 Kelly Road Dam | 610 Harvard Gulch at Jackson |
| 710 Horseshoe Park | 720 Confluence Pond |
| 730 No Name Creek at Quincy | 1100 Louisville Rec. Center |
| 1200 Broomfield Basin 3207 | 1600 Englewood Dam |
| 1900 Niver Detention | 4060 Lakeshore |
Most ALERT rain and stream gaging stations are shutdown for the winter and made ready for the next flood season. Boulder County mountain rain gages remain in operation over the winter to assure ready status for early spring storm monitoring. All weather stations and repeaters operate year-round along with the following stage gages:
| WINTER OPERATIONS | |
| 203 (A2-10088) Leyden Lake | 1003 Maple Grove Reservoir |
| 1649 SPR at 19th Street | 1659 SPR at Henderson |
| 1703 Cherry Creek at Champa | 2333 Bear Creek at Morrison |
MHFD assists Boulder County with maintaining ALERT stations in the Boulder Creek and South Boulder Creek watersheds. Boulder County maintains the Saint Vrain Creek and Left Hand Creek stations.
System maintenance is performed by OneRain and WET.
Report problems to Bruce Rindahl.