Alert archive / Minnesota / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 50, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 28, 1997, 4:26 PM CDT for Cottonwood County, Minnesota. It was in force for 49 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
- Jun 28, 1997, 4:26 PM CDT (21:26 UTC)
- Expired
- Jun 28, 1997, 5:15 PM CDT
- In force
- 49 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County Cottonwood County, MN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 28, 4:50 PM CDT | Hail 1.75 | Jeffers, 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 12:00Z, 9.4 hours before the alert went out and 157 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
- 1849 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 891 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 197 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.5
The text
As transmitted, in the capitals the NWS used until 2016.
075 WUUS1 KFSD 282127 RRA SVRFSD MNC033-282215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 426 PM CDT SAT JUN 28 1997 * SEVERE THUNDERSTORM WARNING FOR NORTHERN COTTONWOOD COUNTY - IN SOUTHWESTERN MINNESOTA * UNTIL 515 PM CDT * THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS. * AT 424 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES NORTHEAST OF WORTHINGTON OR IN THE VICINITY OF JEFFERS MOVING EAST AT 25 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WINDS AND LARGE HAIL OCCUR WITH SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. JCV
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 28, 10:41 AM CDT, 5 hours 45 minutes earlier.
Area forecast discussion, Jun 28, 10:41 AM CDT, 5 hours 45 minutes before
SOUTH DAKOTA/NORTHWEST IOWA/SOUTHWEST MINNESOTA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SIOUX FALLS SD 1040 AM CDT SAT JUN 28 1997 TSTMS NOT EXPECTED IN FCST AREA TODAY SO NO CHG TO FCST. .FSD...N ONE KOSCIELSKI
In the hours before
Special weather statement, Jun 28, 10:58 AM CDT, 5 hours 28 minutes before
SIGNIFICANT WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1058 AM CDT SAT JUN 28 1997 *** SIGNIFICANT WEATHER PERTAINS TO WEATHER ELEMENTS ASSOCIATED WITH THUNDERSTORMS. *** .SYNOPSIS...AN OUTFLOW BOUNDY OVER NORTHEAST SOUTH DAKOTA AND WEST CENTRAL MINNESOTA IS EXPECTED TO PUSH SOUTH THIS AFTERNOON AND EVENING AND TRIGER STRONG THUNDERSTROMS SOME OF WHICH MAY BECOME SEVERE. SDZ038>040-053>056-MNZ071-072-080-081-090-097-290500- BEADLE-BROOKINGS-KINGSBURY-LAKE-MINER-MOODY-SANBORN-COTTONWOOD- JACKSON-LINCOLN-LYON-MURRAY-PIPESTONE- INCLUDING THE CITIES OF...BROOKINGS...HURON...PIPESTONE...SLAYTON 1058 AM CDT SAT JUN 28 1997 FORECAST THROUGH MIDNIGHT: THERE IS THE POSIBILITY OF STRONG THUNDERSTORMS DEVELOPING LATE THIS AFTERNOON AND EARLY EVENING WITH LARGE HAIL AND STRONG WINDS. * SIGNIFICANT WEATHER: UP TO 60 MPH. HAIL UP TO 2 INCHES IN DIAMETER RAINFALL RATES UP TO 2 INCH PER HR. * SPOTTER ACTIVATION: SPOTTER ACTIVATION MAY BE NEEDED AFTER 5PM CDT. SDZ050-052-057>071-MNZ089-098-IAZ001>003-012>014-020>022-031-032- NEZ013-014-290500- AURORA-BON HOMME-BRULE-CHARLES MIX-CLAY-DAVISON-DOUGLAS-GREGORY- HANSON-HUTCHINSON-JERAULD-LINCOLN-MC COOK-MINNEHAHA-TURNER-UNION- YANKTON-NOBLES-ROCK-BUENA VISTA-CHEROKEE-CLAY-DICKINSON-IDA-LYON- OBRIEN-OSCEOLA-PLYMOUTH-SIOUX-WOODBURY-DAKOTA-DIXON- INCLUDING THE CITIES OF...CHAMBERLAIN...MITCHELL...SIOUX FALLS... YANKTON...LUVERNE...WORTHINGTON...LE MARS...ROCK RAPIDS... SIOUX CENTER...SIOUX CITY...SPENCER...SPIRIT LAKE...STORM LAKE 1058 AM CDT SAT JUN 28 1997 FORECAST THROUGH MIDNIGHT: THERE IS A POSIBILITY OF ISOLATED SEVERE THUNDERSTORMS AFTER 6PM CDT. * SIGNIFICANT WEATHER: WINDS UP TO 60 MPH. HAIL UP TO 1 INCH IN DIAMETER. RAINFALL RATES UP TO 2 INCHES PER HR. * SPOTTER ACTIVATION: SPOTTER ACTIVATION MAY BE NEEDED AFTER 6PM CDT. KOSCIELSKI
Nearby
Severe Thunderstorm Warnings in Minnesota, 1997Every severe thunderstorm warning in 1997
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.