Alert archive / Colorado / Flood Watches in 2008
Flood Watch 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flood watch at Aug 15, 2008, 2:32 PM MDT for 19 counties in Colorado. It was in force for 32 hr.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2008, 2:32 PM MDT (20:32 UTC)
- Expired
- Aug 16, 2008, 10:24 PM MDT
- In force
- 32 hr
- Issued by
- NWS Denver/Boulder, CO
- Flood severity
- None
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 22 km from the middle of the area, began a volume at 20:36 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 (KDNR), launched 12:00Z, 8.5 hours before the alert went out and 99 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 592 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this flood watch went out at Aug 15, 2:50 AM MDT, 11 hours 42 minutes earlier.
Area forecast discussion, Aug 15, 2:50 AM MDT, 11 hours 42 minutes before
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</html>Hazardous weather outlook, Aug 15, 11:08 AM MDT, 3 hours 24 minutes before
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</html>The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 6:43 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 62 min |
| Aug 14, 7:01 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 59 min |
| Aug 14, 7:33 PM MDT | Areal Flood Advisory | BOU | Elbert, Lincoln | 2 hr |
| Aug 14, 7:34 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 38 min |
| Aug 14, 7:46 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 59 min |
| Aug 15, 3:51 PM MDT | Areal Flood Advisory | BOU | Morgan | 73 min |
Nearby
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.