Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 364, NWS Twin Cities, MN

September 4, 2005Scott County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 4, 2005, 6:27 AM CDT for Scott County, Minnesota. It was in force for 63 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: Sep 4, 2005, 6:27 AM CDT (11:27 UTC)
Expired: Sep 4, 2005, 7:30 AM CDT
In force: 63 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Scott County, MN

The radar

The Minneapolis radar (KMPX), 18 km from the middle of the area, began a volume at 11:30 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 11.5 hours before the alert went out and 389 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: 1333 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 2847 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 041127
SVRMPX
MNC139-041230-
/O.NEW.KMPX.SV.W.0364.050904T1127Z-050904T1230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
627 AM CDT SUN SEP 4 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SCOTT COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 730 AM CDT

* AT 622 AM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 7 MILES
  NORTHWEST OF SHAKOPEE...OR ABOUT 7 MILES SOUTH OF EXCELSIOR...AND
  MOVING SOUTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SHAKOPEE...
  MARYSTOWN...
  PRIOR LAKE...
  CRYSTAL BAY...
  VESELI...
  NEW MARKET...
  ELKO...

THIS STORM HAS A HISTORY OF PRODUCING HAIL TO THE SIZE OF GOLF 
BALLS. STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4481 9348 4473 9361 4455 9359 4455 9330
      4477 9337

$$

KAT

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 Sep 4, 2:30 AM CDT, 3 hours 57 minutes earlier.

Area forecast discussion, Sep 4, 2:30 AM CDT, 3 hours 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
230 AM CDT SUN SEP 4 2005

.DISCUSSION...TODAY THROUGH TUESDAY NIGHT
THUNDERSTORMS HAVE BEEN ROLLING SOUTHEASTWARD ACROSS EAST CENTRAL MN
AND WEST CENTRAL WISCONSIN. AREA IS JUST ON THE COLD SIDE OF THE 700
MB CAP. 00Z NAM SUGGESTS CAP WILL PROGRESS NORTHEAST TODAY AND
SQUELCH ADDITIONAL DEVELOPMENT. AS FOR WHETHER THE 00Z NAM HAS A
DECENT HANDLE ON THE NEAR-TERM...HAVE LOOKED AT THE VEERING OF THE
LOW LEVEL WIND FIELD ON THE WOOD LAKE PROFILER...WHICH SUPPORTS THE
3 HOURLY 00Z 40KM NAM SOLUTION. SAID VEERING SUPPORTS THE IDEA OF
MOVING MUCH WARMER AIR INTO THE SOUTHWESTERN TWO-THIRDS OF THE CWA
TODAY. SO PLAN TO GO WITH THE WARMEST OF THE GUIDANCE NUMBERS IN THE
TEMPERATURE DEPARTMENT. THE NORTHEASTERN CWA MAY NOT RECEIVE THIS
STRONG WARM-UP TODAY...AS THE 00Z WSETA DEPICTS SUBSTANTIAL EASTERLY
FLOW THROUGHOUT TODAY IN THAT AREA.

ON MONDAY...BOTH THE NAM AND GFS BRING WARM AIR ACROSS THE ENTIRE
CWA. WITH A STRONG CAP IN PLACE...AND A WARM NIGHT TONIGHT...WILL
GO NEAR OR ABOVE 90 JUST ABOUT EVERYWHERE.

00Z NAM AND GFS DIVERGE ON SURFACE FRONTAL LOCATIONS FOR MONDAY
NIGHT INTO TUESDAY NIGHT. HAVE JUST GONE WITH BROADBRUSH POPS OF 40
PERCENT FOR NOW...PLENTY OF TIME TO ADD MORE RESOLUTION LATER. WIDE
VARIATION IN HIGHS TUESDAY POSSIBLE DEPENDING ON WHICH MODEL IS
RIGHT. USED MOS CONSENSUS AS A STARTING PLACE FOR MAXES ON
TUESDAY.

LONGER TERM...WEDNESDAY THROUGH SUNDAY
HPC LEANING TOWARD 00Z ECMWF SOLUTION WHICH IS MORE AMPLIFIED WITH
WESTERN NORTH AMERICAN UPPER TROUGH. WITH NOT ALL OF 00Z ECMWF
IN...YET...PLAN ON STICKING WITH EXISTING GRIDS THROUGH SATURDAY.
USED MEX GUIDANCE FOR SUNDAY. DAY SHIFT CAN LOOK OVER HPC GRIDDED
DATA AFTER 15Z AND MAKE CHANGES AS NEEDED.

.MPX WATCHES/WARNINGS/ADVISORIES...
.MN...FLOOD WATCH PARTS OF CENTRAL MN UNTIL 11Z SUN.
.WI...FLOOD WATCH PARTS OF WEST CENTRAL WI UNTIL 11Z SUN.

&&

RJN

Hazardous weather outlook, Sep 4, 5:18 AM CDT, 1 hour 9 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
518 AM CDT SUN SEP 4 2005

MNZ053-060>063-068>070-077-078-085-093-051100-
ANOKA-CARVER-CHISAGO-DAKOTA-FREEBORN-GOODHUE-HENNEPIN-RAMSEY-RICE-
SCOTT-STEELE-WASHINGTON-
518 AM CDT SUN SEP 4 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
AND SOUTHERN MINNESOTA.

.DAY ONE...TODAY

THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL...AND
TORRENTIAL RAINS...WILL CONTINUE THROUGH THE EARLY MORNING HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

MNZ041>045-047-048-051100-
DOUGLAS-KANABEC-MILLE LACS-MORRISON-POPE-STEVENS-TODD-
518 AM CDT SUN SEP 4 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL MINNESOTA.

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SEVERE THUNDERSTORMS ARE POSSIBLE MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

WIZ014>016-023>028-051100-
BARRON-CHIPPEWA-DUNN-EAU CLAIRE-PEPIN-PIERCE-POLK-RUSK-ST CROIX-
518 AM CDT SUN SEP 4 2005

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

.DAY ONE...TODAY

THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL...AND
TORRENTIAL RAINS...WILL CONTINUE THROUGH THE EARLY MORNING HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED EARLY THIS MORNING.

MNZ049>052-054>059-064>067-073>075-082-051100-
BENTON-BROWN-CHIPPEWA-ISANTI-KANDIYOHI-LAC QUI PARLE-MCLEOD-MEEKER-
NICOLLET-REDWOOD-RENVILLE-SHERBURNE-SIBLEY-STEARNS-SWIFT-WATONWAN-
WRIGHT-YELLOW MEDICINE-
518 AM CDT SUN SEP 4 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
AND SOUTHERN MINNESOTA.

.DAY ONE...TODAY

THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL...AND
TORRENTIAL RAINS...WILL CONTINUE THROUGH THE EARLY MORNING HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN ON MONDAY NIGHT AND TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

RJN

In the hours before

Local storm report, Sep 4, 5:59 AM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
559 AM CDT SUN SEP 04 2005

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

0528 AM     HAIL             CHASKA                  44.82N 93.61W
09/04/2005  1.75 INCH        CARVER             MN   PUBLIC

&&

AJZ

Local storm report, Sep 4, 6:05 AM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
605 AM CDT SUN SEP 04 2005

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

0601 AM     HAIL             EXCELSIOR               44.94N 93.56W
09/04/2005  1.00 INCH        HENNEPIN           MN   TRAINED SPOTTER

            SPOTTER REPORTED NICKEL TO QUARTER SIZE HAIL COVERING HIS
            DECK.

&&

KAT

Local storm report, Sep 4, 6:07 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
607 AM CDT SUN SEP 04 2005

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

0604 AM     HAIL             BROOKLYN PARK           45.11N 93.35W
09/04/2005  1.00 INCH        HENNEPIN           MN   LAW ENFORCEMENT

&&

KAT

Local storm report, Sep 4, 6:12 AM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
612 AM CDT SUN SEP 04 2005

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

0610 AM     HAIL             SHOREWOOD               44.90N 93.59W
09/04/2005  1.75 INCH        HENNEPIN           MN   TRAINED SPOTTER

&&

KAT

Local storm report, Sep 4, 6:18 AM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
618 AM CDT SUN SEP 04 2005

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

0618 AM     HAIL             BROOKLYN PARK           45.11N 93.35W
09/04/2005  1.00 INCH        HENNEPIN           MN   TRAINED SPOTTER

&&

KAT

Local storm report, Sep 4, 6:24 AM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
624 AM CDT SUN SEP 04 2005

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

0621 AM     HAIL             CHANHASSEN              44.86N 93.56W
09/04/2005  0.88 INCH        CARVER             MN   NWS EMPLOYEE

            METEOROLOGIST IN CHARGE NOTICES HAIL COVERING THE GROUND
            AT NATIONAL WEATHER SERVICE OFFICE.

&&

AJZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 7:36 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Wright	54 min
Sep 3, 7:59 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	46 min
Sep 3, 8:23 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	67 min
Sep 3, 8:30 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	60 min
Sep 3, 8:40 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	65 min
Sep 3, 8:49 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Wright	56 min
Sep 3, 8:56 PM CDT	Severe Thunderstorm Warning	MPX	Scott	64 min
Sep 3, 9:09 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	66 min
Sep 3, 9:12 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	63 min
Sep 3, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Meeker	65 min
Sep 3, 9:41 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	64 min
Sep 3, 9:50 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	55 min
Sep 3, 9:55 PM CDT	Severe Thunderstorm Warning	MPX	Scott	65 min
Sep 3, 10:05 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	55 min
Sep 3, 10:14 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	61 min
Sep 3, 10:16 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	59 min
Sep 3, 10:51 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	54 min
Sep 3, 10:58 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	62 min
Sep 3, 11:13 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	62 min
Sep 3, 11:55 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	65 min
Sep 4, 12:36 AM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker	54 min
Sep 4, 1:27 AM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker	63 min
Sep 4, 1:32 AM CDT	Flash Flood Warning	MPX	McLeod, Meeker	3 hr
Sep 4, 1:53 AM CDT	Severe Thunderstorm Warning	MPX	Wright	67 min
Sep 4, 1:57 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Sherburne	63 min
Sep 4, 2:25 AM CDT	Severe Thunderstorm Warning	MPX	Hennepin	65 min
Sep 4, 2:27 AM CDT	Severe Thunderstorm Warning	MPX	McLeod	63 min
Sep 4, 2:50 AM CDT	Severe Thunderstorm Warning	MPX	Carver	55 min
Sep 4, 2:57 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Sherburne, Wright	63 min
Sep 4, 3:57 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Sherburne	63 min
Sep 4, 4:07 AM CDT	Severe Thunderstorm Warning	MPX	Hennepin	53 min
Sep 4, 4:11 AM CDT	Severe Thunderstorm Warning	MPX	Carver	64 min
Sep 4, 4:16 AM CDT	Flash Flood Warning	MPX	Anoka, Hennepin	3 hr
Sep 4, 4:21 AM CDT	Severe Thunderstorm Warning	MPX	Scott	54 min
Sep 4, 5:06 AM CDT	Flash Flood Warning	MPX	Carver, Scott	3 hr
Sep 4, 5:10 AM CDT	Severe Thunderstorm Warning	MPX	Hennepin	65 min
Sep 4, 5:16 AM CDT	Severe Thunderstorm Warning	MPX	Carver	59 min
Sep 4, 5:34 AM CDT	Severe Thunderstorm Warning	MPX	Scott	56 min
Sep 4, 5:54 AM CDT	Flash Flood Warning	MPX	Ramsey	3 hr
Sep 4, 6:10 AM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin	65 min
Sep 4, 6:53 AM CDT	Flash Flood Warning	MPX	Rice, Steele	4 hr
Sep 4, 6:57 AM CDT	Flash Flood Warning	MPX	Anoka, Hennepin	2 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005 Every severe thunderstorm warning in 2005

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.