Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 3, NWS Cheyenne, WY
NWS Cheyenne, WY issued this severe thunderstorm warning at Mar 28, 1998, 3:10 PM MST for Sioux County, Nebraska. It was in force for 50 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 28, 1998, 3:10 PM MST (22:10 UTC)
- Expired
- Mar 28, 1998, 4:00 PM MST
- In force
- 50 min
- Issued by
- NWS Cheyenne, WY
- Area
- Whole counties
County Sioux County, NE
The radar
The Cheyenne radar (KCYS), 172 km from the middle of the area, began a volume at 22:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 3:30 PM MST | Hail 1.75 | Agate, NE | A storm produced golf ball size hail 20 miles SW of Agate or 5 miles NE of Henry. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 10.2 hours before the alert went out and 190 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
- 1584 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
652 WUUS1 KCYS 282214 RRA SVRCYS NEC165-282300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 310 PM MST SAT MAR 28 1998 THE NATIONAL WEATHER SERVICE IN CHEYENNE WYOMING HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR CENTRAL AND SOUTHWEST SIOUX COUNTY IN THE NEBRASKA PANHANDLE * UNTIL 400 PM MST * AT 310 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 10 MILES NORTHEAST OF TORRINGTON WY MOVING NORTHEAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ONLY RURAL AREAS DURING THIS TIME PERIOD STRONG WINDS WITH THIS STORM MAY CAUSE INJURY OR DAMAGE. TAKE SHELTER INSIDE A STURDY BUILDING AWAY FROM ALL DOORS AND WINDOWS. SULLIVAN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 3:00 PM MST | Severe Thunderstorm Warning | CYS | Cheyenne | 40 min |
| Mar 28, 3:50 PM MST | Severe Thunderstorm Warning | CYS | Cheyenne | 45 min |
| Mar 28, 3:55 PM MST | Severe Thunderstorm Warning | CYS | Scotts Bluff | 45 min |
| Mar 28, 4:00 PM MST | Severe Thunderstorm Warning | CYS | Sioux | 60 min |
| Mar 28, 4:30 PM MST | Severe Thunderstorm Warning | CYS | Cheyenne | 30 min |
| Mar 28, 4:40 PM MST | Severe Thunderstorm Warning | CYS | Scotts Bluff | 45 min |
| Mar 28, 4:50 PM MST | Severe Thunderstorm Warning | CYS | Cheyenne | 40 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.