Alert archive / Iowa / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 116, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jun 24, 2015, 6:27 PM CDT for Shelby County, Iowa. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 24, 2015, 6:27 PM CDT (23:27 UTC)
- Expired
- Jun 24, 2015, 7:30 PM CDT
- In force
- 63 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Shelby County, IA
The radar
The Omaha radar (KOAX), 97 km from the middle of the area, began a volume at 23:27 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 24, 6:21 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.5 hours before the alert went out and 97 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
- 115 J/kg
- Mixed-layer CIN
- -531 J/kg
- Mixed-layer LCL
- 1022 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 400 m²/s²
- 0-3 km storm-relative helicity
- 373 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 1:25 AM CDT | Special Weather Statement | OAX | Nance | 35 min |
| Jun 24, 2:13 AM CDT | Special Weather Statement | OAX | Colfax | 32 min |
| Jun 24, 2:31 AM CDT | Special Weather Statement | OAX | Butler | 29 min |
| Jun 24, 3:26 AM CDT | Special Weather Statement | OAX | Saunders | 34 min |
| Jun 24, 4:01 AM CDT | Special Weather Statement | OAX | Saunders | 29 min |
| Jun 24, 5:04 AM CDT | Special Weather Statement | OAX | Sarpy | 26 min |
| Jun 24, 5:16 AM CDT | Areal Flood Advisory | OAX | Butler, Saunders | 4 hr |
| Jun 24, 5:23 AM CDT | Severe Thunderstorm Warning | OAX | Cass, Sarpy | 21 min |
| Jun 24, 5:41 AM CDT | Special Weather Statement | OAX | Saunders | 34 min |
| Jun 24, 5:59 AM CDT | Areal Flood Advisory | OAX | Cass, Douglas, Sarpy, Saunders | 4 hr |
| Jun 24, 6:15 AM CDT | Special Weather Statement | OAX | Sarpy | 30 min |
| Jun 24, 6:16 AM CDT | Special Weather Statement | OAX | Sarpy | 29 min |
| Jun 24, 6:49 AM CDT | Special Weather Statement | OAX | Sarpy | 26 min |
| Jun 24, 10:13 AM CDT | Special Weather Statement | OAX | Madison | 47 min |
| Jun 24, 11:15 AM CDT | Areal Flood Advisory | OAX | Wayne | 2 hr |
| Jun 24, 11:20 AM CDT | Special Weather Statement | OAX | Thurston | 55 min |
| Jun 24, 12:48 AM CDT | Special Weather Statement | OAX | Monona | 27 min |
| Jun 24, 2:44 AM CDT | Special Weather Statement | OAX | Monona | 16 min |
| Jun 24, 6:19 AM CDT | Special Weather Statement | OAX | Page | 41 min |
| Jun 24, 6:21 AM CDT | Special Weather Statement | OAX | Harrison | 24 min |
| Jun 24, 7:31 AM CDT | Special Weather Statement | OAX | Fremont, Mills, Montgomery, Page | 29 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2015Every severe thunderstorm warning 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.