Alert archive / Nebraska / Tornado Watches in 1998
Tornado Watch 369
The Storm Prediction Center issued this tornado watch at May 19, 1998, 3:30 PM MDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 19, 1998, 3:30 PM MDT (21:30 UTC)
- Expired
- May 19, 1998, 9:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE, Scotts Bluff County, NE, Sioux County, NE, Goshen County, WY, Laramie County, WY, Niobrara County, WY
The radar
The Cheyenne radar (KCYS), 163 km from the middle of the area, began a volume at 21:30 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
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 4:01 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 34 min |
| May 19, 4:57 PM MDT | Severe Thunderstorm Warning | CYS | Niobrara | 33 min |
| May 19, 5:35 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 50 min |
| May 19, 5:40 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 65 min |
| May 19, 6:27 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 33 min |
| May 19, 6:28 PM MDT | Severe Thunderstorm Warning | LBF | Grant | 62 min |
| May 19, 6:32 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 63 min |
| May 19, 6:38 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Grant, Hooker | 62 min |
| May 19, 6:51 PM MDT | Tornado Warning | LBF | Cherry, Grant, Hooker | 64 min |
| May 19, 6:56 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 29 min |
| May 19, 7:19 PM MDT | Tornado Warning | LBF | Garden | 66 min |
| May 19, 7:26 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 44 min |
| May 19, 7:39 PM MDT | Severe Thunderstorm Warning | LBF | Arthur | 66 min |
| May 19, 8:06 PM MDT | Severe Thunderstorm Warning | LBF | McPherson | 64 min |
| May 19, 8:11 PM MDT | Tornado Warning | LBF | McPherson | 64 min |
| May 19, 8:34 PM MDT | Severe Thunderstorm Warning | LBF | Logan | 61 min |
| May 19, 8:44 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln | 66 min |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.5 hours before the alert went out and 174 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
- 3220 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
Nearby
Tornado Watches in Nebraska, 1998Tornado Watches in Colorado, 1998Tornado Watches in Kansas, 1998Every tornado watch in 1998
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.