Alert archive / Nebraska / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 617
The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 2002, 11:20 PM CDT for 42 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2002, 11:20 PM CDT (04:20 UTC)
- Expired
- Aug 17, 2002, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 42 counties
Adams County, NE, Antelope County, NE, Boone County, NE, Buffalo County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Custer County, NE, Dakota County, NE, Dawson County, NE, Dixon County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Howard County, NE, Kearney County, NE, Lincoln County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Red Willow County, NE, Sherman County, NE, Stanton County, NE, Thurston County, NE, Valley County, NE, Wayne County, NE, Wheeler County, NE
The radar
The Grand Island radar (KUEX), 123 km from the middle of the area, began a volume at 04:21 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.
Warnings issued inside it
25 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 11:30 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 60 min |
| Aug 16, 11:49 PM CDT | Severe Thunderstorm Warning | LBF | Wheeler | 41 min |
| Aug 17, 12:01 AM CDT | Severe Thunderstorm Warning | GID | Valley | 59 min |
| Aug 17, 12:01 AM CDT | Severe Thunderstorm Warning | LBF | Garfield, Holt | 44 min |
| Aug 17, 12:02 AM CDT | Severe Thunderstorm Warning | OAX | Antelope | 28 min |
| Aug 17, 12:17 AM CDT | Severe Thunderstorm Warning | OAX | Pierce, Wayne | 43 min |
| Aug 17, 12:22 AM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 53 min |
| Aug 17, 12:25 AM CDT | Severe Thunderstorm Warning | GID | Greeley | 65 min |
| Aug 17, 12:29 AM CDT | Severe Thunderstorm Warning | LBF | Custer | 46 min |
| Aug 17, 12:30 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Madison | 60 min |
| Aug 17, 12:35 AM CDT | Severe Thunderstorm Warning | GID | Howard, Sherman | 55 min |
| Aug 17, 12:39 AM CDT | Severe Thunderstorm Warning | OAX | Cedar | 36 min |
| Aug 17, 12:42 AM CDT | Severe Thunderstorm Warning | GID | Dawson | 63 min |
| Aug 17, 12:43 AM CDT | Severe Thunderstorm Warning | FSD | Dixon | 47 min |
| Aug 17, 12:58 AM CDT | Severe Thunderstorm Warning | LBF | Frontier | 62 min |
| Aug 17, 12:59 AM CDT | Severe Thunderstorm Warning | FSD | Dakota | 46 min |
| Aug 17, 1:04 AM CDT | Severe Thunderstorm Warning | OAX | Thurston, Wayne | 41 min |
| Aug 17, 1:07 AM CDT | Severe Thunderstorm Warning | GID | Nance | 53 min |
| Aug 17, 1:13 AM CDT | Severe Thunderstorm Warning | LBF | Custer | 32 min |
| Aug 17, 1:16 AM CDT | Severe Thunderstorm Warning | OAX | Cuming, Stanton | 44 min |
| Aug 17, 1:30 AM CDT | Severe Thunderstorm Warning | GID | Buffalo | 60 min |
| Aug 17, 1:32 AM CDT | Severe Thunderstorm Warning | GID | Gosper | 58 min |
| Aug 17, 1:42 AM CDT | Severe Thunderstorm Warning | OAX | Colfax, Dodge | 48 min |
| Aug 17, 2:16 AM CDT | Severe Thunderstorm Warning | GID | Furnas | 59 min |
| Aug 17, 2:40 AM CDT | Severe Thunderstorm Warning | GID | Harlan | 50 min |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 4.3 hours before the alert went out and 92 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
- 2049 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 3249 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 1:05 AM CDT | Severe Thunderstorm Watch | SPC | Burt, Butler, Cass, Clay, Colfax, Dodge and 19 more | 5 hr |
| Aug 17, 3:45 AM CDT | Severe Thunderstorm Watch | SPC | Richardson | 5 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2002Every severe thunderstorm watch in 2002
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.