Severe Thunderstorm Warning 72, NWS Twin Cities, MN

Issued

Jun 9, 1999, 12:27 AM CDT (05:27 UTC)

Expired

Jun 9, 1999, 1:15 AM CDT

In force

48 min

Issued by

NWS Twin Cities, MN

Area

Whole counties

County Swift County, MN

The Minneapolis radar (KMPX), 173 km from the middle of the area, began a volume at 05:27 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.

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.

000 
TTAA00 KMPX 090531
SVRMSP
MNC041-121-151-090615-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1227 AM CDT WED JUN 9 1999

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA
  POPE COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 115 AM CDT

* AT 1227 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH LARGE HAIL 20 MILES SOUTH OF LONG BEACH...
  OR ABOUT 8 MILES NORTHEAST OF BENSON...MOVING NORTH AT 30 MPH. AT  
  1222 AM...STORM SPOTTERS REPORTED QUARTER SIZE HAIL 5 MILES NORTH  
  OF BHENSON.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  ALEXANDRIA
  GLENWOOD
  STARBUCK
  FORADA. 

THIS IS A DANGEROUS STORM WITH LARGE HAIL...STAY INDOORS AWAY FROM 
WINDOWS.

NWS Twin Cities, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 8:45 PM CDT, 3 hours 42 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
845 PM CDT TUE JUN 8 1999

FORECAST CONCERN IS FOR MORE CONVECTION LATER TONIGHT. CONVECTION
OVER N CENTRAL IA CONTINUES SLOWLY TO EAST IN WEAK WIND FLOW ALOFT.
SAT PATTERN SUGGESTS POSSIBLE VORT OVER NE IA SUGGESTED BY MODELS.
ISOLATED CELL OVER SE SD LOOKS LIKE IT COULD BE CONNECTED BY OUTFLOW
OR BOUNDARY ANALYZED ACROSS N IA THIS AFTERNOON. NOT MUCH LIGHTNING
ASSOCIATED WITH CELL OVER SE SD. SLIGHT CHANCE OF IA CONVECTION
PUSHING BACK INTO SE MN BUT LIKELY MISSING SOUTH CENTRAL PART OF
CWA. CELL IN SE SD COULD ALSO HOLD TOGETHER AND PUSH INTO SW MN.
WDL PROFILER WINDS NOT TOO IMPRESSIVE ATTM FOR STRONG STORMS WITH
WEAK WINDS 700 MB-400 MB.

ATTENTION TURNS FARTHER WEST WITH MAIN FORCING. MAIN LOW LEVEL FLOW
AND NEB INTO ND WITH INSTABILITY GRADIENT INTO ND. THIS PATTER
CONTINUE PAST MIDNIGHT ACCORDING TO 21Z RUC. MOST UNSTABLE 850 MB
LI'S OVER ND INTO N CENTRAL SD AS WELL AS 850-500 THICKNESS
DIFFLUENCE. THICKNESS PATTERN NOT REAL CONDUCIVE TO SVR WX IN MN
WITH N-S CONTOURS OVER MOST OF STATE. COULD CERTAINLY SEE SOME PARTS
OF THE MCS SAGGING SE OVER WEST CENTRAL MN LATE TONIGHT WITH SOME
HEVAY RAIN AND THIS HINTED AT BY 18Z MESOETA BY OR AFTER 09Z.

BASE ON 850 MB LI FIELD..THERE IS ACTUALLY A SLIGHT ADVECTION OF
MORE STABLE AIR INTO EASTERN MN.

WILL ADJUST SOME TIMING OVER EASTERN MN AND POSSIBLY BACK OFF A BIT
ON POPS^. WEST PROBABLY OK.

.MSP...NONE.
RICHARDSON

Severe Thunderstorm Warnings in Minnesota, 1999Every severe thunderstorm warning in 1999

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.