Alert archive / Colorado / Flash Flood Watches in 2011
Flash Flood Watch 4, NWS Goodland, KS
NWS Goodland, KS issued this flash flood watch at Jul 12, 2011, 12:00 PM MDT for Kit Carson County, Yuma County, Colorado; Dundy County, Nebraska. It took effect at Jul 12, 2011, 6:00 PM MDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2011, 12:00 PM MDT (18:00 UTC)
- In effect from
- Jul 12, 2011, 6:00 PM MDT
- Expired
- Jul 12, 2011, 10:39 PM MDT
- In force
- 5 hr
- Issued by
- NWS Goodland, KS
- Flood severity
- None
Counties Kit Carson County, CO, Yuma County, CO, Dundy County, NE
The radar
The Goodland radar (KGLD), 69 km from the middle of the area, began a volume at 17:57 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, 6.0 hours before the alert went out and 85 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1730 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Goodland, KS wrote its last area forecast discussion before this flash flood watch went out at Jul 12, 5:28 AM MDT, 6 hours 32 minutes earlier.
Area forecast discussion, Jul 12, 5:28 AM MDT, 6 hours 32 minutes before
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</html>Hazardous weather outlook, Jul 12, 10:42 AM MDT, 1 hour 18 minutes before
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</html>The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 12:13 AM MDT | Special Weather Statement | GLD | Norton | 47 min |
| Jul 11, 9:09 PM MDT | Special Weather Statement | GLD | Dundy | 36 min |
| Jul 11, 9:44 PM MDT | Special Weather Statement | GLD | Dundy | 31 min |
| Jul 11, 11:27 PM MDT | Special Weather Statement | GLD | Red Willow | 33 min |
Nearby
Flash Flood Watches in Colorado, 2011Flash Flood Watches in Nebraska, 2011Every flash flood watch in 2011
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.