Alert archive / Minnesota / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 74, NWS Twin Cities, MN

June 24, 2006McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 24, 2006, 2:28 PM CDT for McLeod County, Minnesota. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 24, 2006, 2:28 PM CDT (19:28 UTC)
Expired: Jun 24, 2006, 3:30 PM CDT
In force: 62 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County McLeod County, MN

The radar

The Minneapolis radar (KMPX), 51 km from the middle of the area, began a volume at 19:31 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 24, 12:34 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.5 hours before the alert went out and 48 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 92 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 1434 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 55 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KMPX 241929
SVRMPX
MNC085-242030-
/O.NEW.KMPX.SV.W.0074.060624T1928Z-060624T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
228 PM CDT SAT JUN 24 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCLEOD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 330 PM CDT

* AT 226 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE           
  THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 65 MPH   
  WINDS.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING   FROM 12 
  MILES NORTHEAST OF GLENCOE TO 18 MILES WEST OF GLENCOE...AND       
  MOVING EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STEWART...
  BISCAY...
  LESTER PRAIRIE...
  BROWNTON...
  SUMTER...
  PLATO...

HAIL UP TO THE SIZE OF NICKELS HAS BEEN REPORTED NEAR HUTCHINSON 
WITH THIS STORM.

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4491 9401 4476 9451 4464 9449 4464 9426
      4472 9425 4472 9401 4478 9401

$$

MTF

3 follow-up statements

000 
WWUS53 KMPX 241950
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
248 PM CDT SAT JUN 24 2006

MNC085-242030-
/O.CON.KMPX.SV.W.0074.000000T0000Z-060624T2030Z/
MCLEOD MN-
248 PM CDT SAT JUN 24 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR MCLEOD COUNTY...

AT 243 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE 
THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 60 MPH 
WINDS.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 
BROWNTON TO LESTER PRAIRIE...AND MOVING EAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SUMTER...PLATO...GLENCOE AND 
BISCAY.

THIS STORM HAS A HISTORY OF PRODUCING NICKEL SIZE HAIL.
SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM 
WINDOWS

LAT...LON 4491 9401 4480 9449 4464 9449 4464 9426
      4472 9425 4472 9401 4478 9401

$$

MTF

000 
WWUS53 KMPX 242010
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
309 PM CDT SAT JUN 24 2006

MNC085-242030-
/O.CON.KMPX.SV.W.0074.000000T0000Z-060624T2030Z/
MCLEOD MN-
309 PM CDT SAT JUN 24 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR MCLEOD COUNTY...

AT 305 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE 
THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL AND 60 MPH 
WINDS.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 
FERNANDO TO LESTER PRAIRIE...AND MOVING EAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SUMTER...PLATO...GLENCOE...
BROWNTON AND BISCAY.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4491 9401 4480 9449 4464 9449 4464 9426
      4472 9425 4472 9401 4478 9401

$$

MTF

000 
WWUS53 KMPX 242024
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
323 PM CDT SAT JUN 24 2006

MNC085-242033-
/O.EXP.KMPX.SV.W.0074.000000T0000Z-060624T2030Z/
MCLEOD MN-
323 PM CDT SAT JUN 24 2006

...THE SEVERE THUNDERSTORM WARNING FOR MCLEOD COUNTY EXPIRES AT 330
PM CDT...

SEVERE STORMS WERE ABOUT TO MOVE OUT OF THE COUNTY. HOWEVER...MORE 
THUNDERSTORMS COULD MOVE ACROSS THE SOUTHERN PORTIONS OF THE COUNTY 
BEFORE 4 PM. REMAIN ALERT FOR POSSIBLE ADDITIONAL WARNINGS.

LAT...LON 4491 9401 4480 9449 4464 9449 4464 9426
      4472 9425 4472 9401 4478 9401

$$

MTF

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 Twin Cities, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 24, 3:30 AM CDT, 10 hours 58 minutes earlier.

Area forecast discussion, Jun 24, 3:30 AM CDT, 10 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
330 AM CDT SAT JUN 24 2006

DISCUSSION...TODAY THROUGH MONDAY NIGHT
FORECAST CHALLENGE IN THE NEAR TERM RIDES WITH TIMING OF SHORT WAVES
OUT AHEAD OF MAIN WAVE WHICH IS FORECAST TO DIG TROUGH SOUTHEAST
OVER THE GREAT LAKES REGION.  WIDELY SCATTERED CONVECTION REMAINS
ACROSS MAINLY OVER CENTRAL MINNESOTA THIS MORNING.  THIS ACTIVITY
REMAINS CLOSE TO WEAK SURFACE BOUNDARY OVER NORTHWEST MN...AND AHEAD
OF WEAK SHORT WAVE MOVING THROUGH EASTERN DAKOTAS.  WILL CONTINUE TO
MENTION SCATTERED TRW- FOR THE MORNING ACROSS NORTHEAST CWA.
OTHERWISE...APPEARS NEXT WAVE MOVING INTO THE CWA DURING THE
AFTERNOON...WHICH WATER VAPOR IMAGERY SHOWS MOVING INTO WESTERN
NORTH DAKOTA.  COUPLE OF WEAK BOUNDARIES SHOULD SAG INTO CENTRAL AND
SOUTHEAST MN BY LATE AFTERNOON.  THIS COMBINED WITH SHORT WAVE AND
ATTENDANT LEFT EXIT REGION OF 250 MB JET MAX NOSING INTO SOUTHWEST
MN SHOULD COME TOGETHER TO INITIATE CONVECTION OVER MAINLY EASTERN
CWA LATE AFTERNOON AND EVENING.  SEVERE PARAMETERS INDICATE ENOUGH
SHEAR AVAILABLE LATE AFTERNOON/EARLY EVENING OVER FAR EAST/SOUTHEAST
CWA...MAINLY EAST AND SOUTH OF TWIN CITIES METRO. GFS MOS GUIDANCE
TEMPS NOT BAD OVERALL.

CONVECTIVE ACTIVITY PROGGED TO CONTINUE INTO COMING NIGHT AND INTO
SUNDAY MORNING...AS UPPER LOW DIGS SOUTHEAST OVER THE WESTERN GRETA
LAKES.  STILL LIKE THE 00Z GFS TIMING OF SYSTEM MOVING THROUGH THE
AREA.  THIS SHOULD KEEP WESTERN CWA DRY FOR SUNDAY WITH A SMALL
CHANCE OF SHOWERS INTO THE EAST...MAINLY IN THE MORNING.  DRIER AIR
WORKS INTO THE REGION FOR SUNDAY NIGHT AND MONDAY.  00Z GFS AND
ENSEMBLE MEAN CONTINUES TREND OF NEXT COLD FRONT MOVING CWA MONDAY
NIGHT.  WILL MENTION LOW POPS OUT AHEAD OF SYSTEM FOR POSSIBLE WAA
ACCAS/SHRA MONDAY AFTERNOON...THEN CHANCE POPS MOVING ACROSS CWA
MONDAY NIGHT.

.LONGER TERM...TUESDAY THROUGH SATURDAY
BOTH THE 24/00Z ECMWF AND THE 24/00Z GFS BRING AN IMPRESSIVE 500 MB
SHORT WAVE SOUTHEASTWARD INTO OUR AREA FOR QUITE LATE MONDAY NIGHT
INTO WEDNESDAY. ASSOCIATED COLD MID LEVEL TEMPERATURES AND JUNE
INSOLATION SHOULD COMBINE TO PRODUCE AN UNSTABLE AIRMASS. ALREADY
HAVE PRECIPITATION MENTIONED FOR THIS PERIOD...DAY SHIFT CAN
EVALUATE NEED TO RAISE POPS BASED ON HPC GUIDANCE. AFTER WEDNESDAY
THE ECMWF AND GFS DEPART MARKEDLY. BOTH FEATURE A DRY PATTERN...BUT
THE OPERATIONAL GFS DIGS A VERY STG 500 MB LOW SOUTHWARD ACROSS THE
WESTERN GREAT LAKES. THIS...IF TRUE...WOULD USHER IN QUITE COOL AIR.
IN CONTRAST...THE ECMWF FEATURES A MUCH LESS MERIDIONAL FLOW
PATTERN. INTERESTINGLY...THE GFS MOS GIVES US JUST SLIGHTLY BELOW
NORMAL TEMPERATURES...SUGGESTING THAT THE OPERATIONAL GFS MAY HAVE
TOO MUCH AMPLITUDE. WE HAVE ACCEPTED THE GFS MOS AS A REASONABLE
FIRST FORECAST FOR THE UPCOMING NEW DAY 7...SATURDAY...JULY 1ST.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
MN...NONE.
WI...NONE.
&&

DWE/RJN

Hazardous weather outlook, Jun 24, 8:29 AM CDT, 5 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
829 AM CDT SAT JUN 24 2006

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
251330-
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK-
ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE-
829 AM CDT SAT JUN 24 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTH CENTRAL MINNESOTA...AND WEST CENTRAL WISCONSIN.

.DAY ONE...TODAY AND TONIGHT
A TROUGH OF LOW PRESSURE OVER THE EASTERN DAKOTAS WILL MOVE ACROSS
CENTRAL AND SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN THROUGH
THIS EVENING. THUNDERSTORMS WILL OCCUR ALONG AND AHEAD OF THE
TROUGH THROUGH THIS EVENING AND A FEW OF THE STORMS COULD BE
SEVERE WITH LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED TODAY AND EARLY TONIGHT.

RAH

In the hours before

Local storm report, Jun 24, 1:39 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
139 PM CDT SAT JUN 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 PM     HAIL             1 S AUGUSTA             44.66N 91.12W
06/24/2006  E0.75 INCH       EAU CLAIRE         WI   TRAINED SPOTTER

            LASTED 3 MINUTES.

&&

GJERDINGEN

Local storm report, Jun 24, 1:40 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
140 PM CDT SAT JUN 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0120 PM     HAIL             THORPE                  44.94N 94.81W
06/24/2006  E1.00 INCH       KANDIYOHI          MN   TRAINED SPOTTER

&&

GJERDINGEN

Local storm report, Jun 24, 1:53 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
153 PM CDT SAT JUN 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1256 PM     HAIL             CANBY                   44.71N 96.27W
06/24/2006  E1.00 INCH       YELLOW MEDICINE    MN   TRAINED SPOTTER

&&

GJERDINGEN

Local storm report, Jun 24, 2:05 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
205 PM CDT SAT JUN 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     HAIL             LAKESIDE                44.83N 94.56W
06/24/2006  E0.88 INCH       RENVILLE           MN   LAW ENFORCEMENT

&&

GJERDINGEN

Special weather statement, Jun 24, 2:14 PM CDT, 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
214 PM CDT SAT JUN 24 2006

MNZ073-242015-
REDWOOD-
214 PM CDT SAT JUN 24 2006

AT 210 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES NORTH OF
COTTONWOOD TO 6 MILES WEST OF TRACY. THESE STORMS WERE MOVING TO THE
EAST AT 40 MPH.

PEOPLE IN REDWOOD COUNTY...SHOULD MONITOR THE WEATHER SITUATION
CLOSELY. LISTEN FOR POSSIBLE WARNINGS AND BE PREPARED TO TAKE
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

ONE HALF INCH HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE
STORMS.

Local storm report, Jun 24, 2:25 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
225 PM CDT SAT JUN 24 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0225 PM     HAIL             5 S HUTCHINSON          44.82N 94.37W
06/24/2006  E0.88 INCH       MCLEOD             MN   TRAINED SPOTTER

&&

GJERDINGEN

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 1:21 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	41 min
Jun 24, 2:06 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	28 min
Jun 24, 2:53 PM CDT	Severe Thunderstorm Warning	MPX	Carver	67 min
Jun 24, 3:31 PM CDT	Severe Thunderstorm Warning	MPX	Scott	59 min
Jun 24, 4:06 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	54 min
Jun 24, 5:21 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	42 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2006 Every severe thunderstorm warning in 2006

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.