Alert archive / Colorado / Mesoscale Discussions in 2015
Mesoscale Discussion 1834
The Storm Prediction Center issued this mesoscale discussion at Sep 29, 2015, 2:14 PM MDT for 8 counties in Colorado; 5 counties in New Mexico. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Sep 29, 2015, 2:14 PM MDT (20:14 UTC)
- Expired
- Sep 29, 2015, 3:15 PM MDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
Counties Alamosa County, CO, Conejos County, CO, Costilla County, CO, Custer County, CO, Fremont County, CO, Huerfano County, CO, Las Animas County, CO, Pueblo County, CO, Colfax County, NM, Los Alamos County, NM, Mora County, NM, San Miguel County, NM, Taos County, NM
The radar
The Pueblo radar (KPUX), 205 km from the middle of the area, began a volume at 20:15 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.2 hours before the alert went out and 362 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
- 1869 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 1:48 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 6 more | 117 min |
Nearby
Mesoscale Discussions in Colorado, 2015Mesoscale Discussions in New Mexico, 2015Every mesoscale discussion in 2015
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.