Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 21, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 18, 1996, 11:51 PM CDT for Nobles County, Rock County, Minnesota. It was in force for 29 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
- May 18, 1996, 11:51 PM CDT (04:51 UTC)
- Expired
- May 19, 1996, 12:20 AM CDT
- In force
- 29 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Nobles County, MN, Rock County, MN
The radar
The Sioux Falls radar (KFSD), 59 km from the middle of the area, began a volume at 04:52 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 |
|---|---|---|---|
| May 19, 12:15 AM CDT | Thunderstorm Wind 55 | Worthington, MN |
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
Minneapolis, MN (KMPX), launched 00:00Z, 4.9 hours before the alert went out and 232 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
- 9 J/kg
- Mixed-layer CIN
- -231 J/kg
- Mixed-layer LCL
- 2274 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 190452 SVRFSD MNC105-133-190520- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1151 PM CDT SAT MAY 18 1996 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1220 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWEST MINNESOTA ...NOBLES COUNTY ...EASTERN ROCK COUNTY AT 1147 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS INDICATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR IN SIOUX FALLS FROM 20 MILES NORTHWEST OF WORTHINGTON NEAR ST KILLIAN THROUGH LUVERNE... 20 MILES EAST OF SIOUX FALLS...MOVING EAST AT 40 MPH. THE PRIMARY THREAT FROM THESE STORMS IS DAMAGING WINDS...AND WILL AFFECT MAGNOLIA...KANARANZI...AND ASH CREEK BY 1155PM...ADRIAN AND ELLSWORTH BY 1205 AM...AND WORTHINGTON AND BREWSTER BY 1215 AM. THESE STORMS MAY ALSO PRODUCE A SMALL TORNADO WITH LITTLE OR NO ADVANCE WARNING. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG...REINFORCED BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. A POSSIBLE rTORNADO WAS REPORTED BY THE PUBLIC NEAR TROSKY AT 1135 PM. CHAPMAN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 9:31 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln | 29 min |
| May 18, 11:16 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Murray, Pipestone | 29 min |
| May 18, 11:57 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 28 min |
| May 19, 12:40 AM CDT | Severe Thunderstorm Warning | FSD | Jackson | 30 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 1996Every severe thunderstorm warning in 1996
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.