HydroMetLLC (@HydroMetLLC) profile picture

Saving the world from biased and unreliable hydromet forecasts. Specializing in QPF, QPE and streamflow.

At the surface
Joined April 2021
Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)Photo by HydroMetLLC (@HydroMetLLC)
Heavy rainfall moved through the Denver Metro this afternoon (Mon, Jun 1st). This @mhfdfws ALERT gauge in Aurora picked up 2.05 inches/30-minutes & 2.44 inches/1-hour. Both intensities are a 1% Annual Exceedance Probablity. #cowx #COflood #mhfdrain
1
4
425
Tue, Aug 26, 2025: Heavy rain is forecast today over the @MHFloodDistrict with abundant moisture helping to produce efficient rainfall rates. #COflood threats include rises on waterways, road flooding & debris flows over steep terrain. Follow @NWSBoulder for the latest. #cowx
3
353
Wed, Jul 30, 2025: More heavy rain is expected over the @MHFloodDistrict this afternoon & evening. Rises on local waterways, road/low-lying area flooding, & debris flows over steep terrain will be possible. Follow @NWSBoulder for the latest warnings & advisories. #cowx #COflood
2
1
360
Thu, Jul 24, 2025: Another High threat of heavy is expected this afternoon/evening for the @MHFloodDistrict. Highest threat will be southern/eastern areas. Flash flooding & debris flows will be possible. Follow @NWSBoulder for the latest warnings & advisories. #cowx #COflood
3
3
415
More heavy rainfall for the @MHFloodDistrict this evening (Wed, Jul 23rd). An ALERT gauge in Aurora picked up 1.62in/1-hour (4-10% annual chance). More impressive is the 15-minute rainfall rate of 1.15in (3% annual chance). #cowx #COflood
1
1
1
334
Wed, Jul 23, 2025: Persistent upslope flow in a high moisture environment will return the threat for heavy #MHFDrain to the western @MHFloodDistrict. Flash flooding & debris flows will be possible. Please follow @NWSBoulder for the latest warnings & advisories. #cowx #COflood
1
4
1
425
Heavy rain affected several parts of the @MHFloodDistrict yesterday (Tue, 7/22). The highest intensities were along I-25 from Lone Tree to Castle Rock. This ALERT gauge picked up 1.62in/2-hours (a 4-10% annual chance). Up to 2.5in/2-hr occurred nearby (1-2% annual chance). #cowx
1
1
308
Tue, Jul 22, 2025: Brief, but heavy #MHFDrain is expected over portions of the @MHFloodDistrict by early afternoon. Isolated flash flooding will be possible. Please follow @NWSBoulder for the latest warnings & advisories that are issued. #cowx #COflood
3
1
339
A second day in a row for heavy rainfall over the @MHFloodDistrict. This @mhfdfws ALERT gauge near Buckley picked up 1 inch of rain in 10 minutes! That's a 2% Annual Exceedance Probability. #cowx #coflood #mhfdrain
3
300
Heavy rainfall moved through the south Denver metro area earlier this afternoon. This @mhfdfws ALERT gauge just south of Parker received 1.13 inches in 15-minutes, which is a 2-4% Annual Exceedance Probability. Check out other max intensities from the storm below. #cowx #mhfdrain
3
302
Tue, Jun 24, 2025: Ample moisture & instability is expected to produce heavy #MHFDrain over the @MHFloodDistrict by early afternoon. Isolated flash flooding on creeks/streams/gulches/roads may occur. Please follow @NWSBoulder for warnings & advisories. #cowx #COflood
4
1
450
June 17, 2025: Ongoing heavy rain will increase in coverage and intensity over @MHFloodDistrict later today. Isolated flash flooding is possible. Follow @NWSBoulder for advisories and warnings. #COwx #COflood
3
235
June 5, 2025: Very active weather will continue for @MHFloodDistrict this afternoon and evening. Multiple rounds of heavy rainfall are possible, along with flash flooding. Follow @NWSBoulder for advisories and warnings. #COflood #COwx
2
1
171
Mon, May 26, 2025: Heavy #MHFDrain is forecast for #MemorialDay. The #COflood threat should be more isolated, favoring areas south & east. Increased runoff should be expected along with rises in local creeks/streams after yesterday's rain. Follow @NWSBoulder for the latest. #cowx
2
197
Sun, May 25, 2025: Another round of strong storms & heavy #MHFDrain will be possible later this afternoon over the @MHFloodDistrict. Increased runoff should be expected over impervious areas along with rises in local creeks/streams. Follow @NWSBoulder for the latest. #cowx
2
2
335
🔍 Discover environmental data like never before with Synoptic’s new Metadata Explorer! Find locations, variables, and historical archives, all for FREE. Read more: zurl.co/8zPRv Start exploring data today: zurl.co/ZpiCD #GlobalObservations #Metadata
2
1
138
Sunday, July 21, 2024: An earlier rainfall threat for the #MHFD today with another round of rain possible this evening. Increased runoff should be expected over areas experiencing heavy #MHFDrain as well other #COFlood threats (see below). Follow @NWSBoulder for the latest. #cowx
2
3
252
Friday, June 14, 2024: Plenty of moisture will fuel strong-to-severe storms this PM in the Denver metro. Rain rates up to 2.0 inches per hour warrant a High flood threat, mainly east of I-25 and north of I-70. Follow @NWSBoulder for the latest #cowx #coflood warnings. #MHFDrain
3
342
Sunday, June 9, 2024: With high moisture & slow storm motion, heavy #MHFDrain is forecast today. Brief downpours could cause #COflood hazards such as flash flooding of roads, low-lying areas & creeks/gulches. Follow @NWSBoulder for the latest #cowx warnings.
3
2
335
Friday, August 25, 2023: Widespread, moderate/heavy #MHFDrain is forecast today. Both brief downpours & longer duration rainfall are expected. #COflood threats include flash flooding of roads, low-lying areas & creeks/gulches. Follow @NWSBoulder for the latest. #cowx
5
4
768