Alert archive / Colorado / Flash Flood Warnings in 2017
Flash Flood Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Aug 15, 2017, 6:09 PM MDT for Lincoln County, Colorado. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 15, 2017, 6:09 PM MDT (00:09 UTC)
- Expired
- Aug 15, 2017, 9:00 PM MDT
- In force
- 3 hr
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Flood severity
- None
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 91 km from the middle of the area, began a volume at 00:09 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDEN), launched 00:00Z, 0.2 hours before the alert went out and 88 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 467 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2755 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
232 WGUS55 KBOU 160009 FFWBOU COC073-160300- /O.NEW.KBOU.FF.W.0009.170816T0009Z-170816T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Denver CO 609 PM MDT TUE AUG 15 2017 The National Weather Service in Denver Colorado has issued a * Flash Flood Warning for... Central Lincoln County in east central Colorado... * Until 900 PM MDT * At 605 PM MDT, local law enforcement officials reported flooding of fields and roads to the west of Hugo. Between two and three inches of rain has already fallen from thunderstorms early this evening. The ground was already moist from rainfall over the past several days. Another thunderstorm is approaching the area with another inch of rain expected. * Some locations that will experience flooding include... Hugo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Excessive runoff from heavy rainfall will cause flooding of small creeks and streams, country roads, farmland, and other low lying spots. Big Sandy Creek will be the most prone to flooding as it flows past Hugo and to the southeast. && LAT...LON 3905 10371 3922 10370 3923 10333 3903 10334 $$ DANKERS
1 follow-up statement
959 WGUS75 KBOU 160153 FFSBOU Flash Flood Statement National Weather Service Denver CO 753 PM MDT TUE AUG 15 2017 COC073-160157- /O.CAN.KBOU.FF.W.0009.000000T0000Z-170816T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lincoln CO- 753 PM MDT TUE AUG 15 2017 ...THE FLASH FLOOD WARNING FOR CENTRAL LINCOLN COUNTY IS CANCELLED... The thunderstorms with heavy rain to the west of Hugo have moved off to the east and southeast. The flooding of fields and county roads that was reported earlier has ended. Additional flooding is not expected to pose a threat. Howerver, drivers should continue to use caution while traveling to the west of Hugo, and should heed any remaining road closures. LAT...LON 3905 10371 3922 10370 3923 10333 3903 10334 $$ DANKERS
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 6:29 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 46 min |
| Aug 15, 6:54 PM MDT | Special Weather Statement | BOU | Logan | 66 min |
| Aug 15, 7:13 PM MDT | Special Weather Statement | BOU | Morgan | 47 min |
| Aug 15, 7:27 PM MDT | Areal Flood Advisory | BOU | Weld | 93 min |
| Aug 15, 7:41 PM MDT | Special Weather Statement | BOU | Adams | 49 min |
| Aug 15, 7:57 PM MDT | Special Weather Statement | BOU | Phillips, Sedgwick | 63 min |
Nearby
Flash Flood Warnings in Colorado, 2017Every flash flood warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.