Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

June 7, 2015Isanti County, Sherburne County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jun 7, 2015, 9:58 PM CDT for Isanti County, Sherburne County, Minnesota. It was in force for 32 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 7, 2015, 9:58 PM CDT (02:58 UTC)
Expired
Jun 7, 2015, 10:30 PM CDT
In force
32 min
Issued by
NWS Twin Cities, MN

Counties Isanti County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 03:01 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.0 hours before the alert went out and 89 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2015-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 79 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2015-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
79 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1746 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 7, 6:59 PM CDT, 2 hours 59 minutes earlier.

Area forecast discussion, Jun 7, 6:59 PM CDT, 2 hours 59 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
659 PM CDT SUN JUN 7 2015

.SHORT TERM...(THIS EVENING THROUGH MONDAY)
ISSUED AT 252 PM CDT SUN JUN 7 2015

TWO SHRTWV/S MOVING ACROSS THE NORTHERN PLAINS WILL BE THE MAIN
PLAYER OVER THE NEXT 6-9 HRS WITH ISOLD/SCT CONVECTION WHERE
INSTABILITY HAS BEEN MAXIMIZED THIS AFTN/EARLY EVENING. BY
SUNSET...ANY LEFTOVER CONVECTION SHOULD DISSIPATE. SOME OF THE
STORMS THIS AFTN WILL BE CAPABLE OF PRODUCING SVR HAIL BASED ON
MLCAPES OF 1500 AND SHEAR VALUES OF 30 KTS. THE BEST CHC OF SVR WX
IN MPX CWA WILL BE ACROSS THE N/NW WHERE BETTER CAPES REMAIN.

OTHERWISE...NOT TOO MANY CHGS OVERNIGHT WITH TEMPS FORECAST TO
FALL INTO THE 50S/60S. TOMORROW WILL BE DRY WITH TEMPS ONCE
AGAIN RISING INTO THE 70S/LOWER 80S.

.LONG TERM...(MONDAY NIGHT THROUGH SUNDAY)
ISSUED AT 252 PM CDT SUN JUN 7 2015

A SMALL RIDGE OF SFC HIGH PRES WILL MOVE ACRS THE AREA MON
NIGHT...ALLOWING FOR A RESPITE FROM PRECIPITATION BUT A WEAK AREA
OF LOW PRES WILL DRIVE SEWD FROM S-CENTRAL CANADA FOR TUE. UPR LVL
SUPPORT IS WEAK WITH THIS SYSTEM AS FLOW WILL CONTINUE TO BE
MAINLY FROM THE NW WHILE H5 HEIGHTS CONTINUE TO RISE. BEST
MOISTURE WILL ALSO BE CONFINED TO N OF THE INTERNATIONAL BORDER SO
WILL KEEP ONLY SLGT CHC POPS GOING FOR MAINLY NRN AND ERN PORTIONS
OF THE CWFA. BETTER DEFINED HIGH PRES WILL THEN MOVE THROUGH THE
REGION UNDERNEATH A CENTRAL CONUS RIDGE AXIS...GRADUALLY SHIFTING
EWD. WED INTO THU...THIS RIDGE AXIS WILL BEGIN TO BREAK DOWN AS A
LONGWAVE TROF DEVELOPS IN THE LEE OF THE ROCKIES AND DIGS SWWD.
THIS DIGGING TROF WILL AID IN CYCLOGENESIS OVER CO/KS...AND THIS
DEEPENING SYSTEM WILL TAKE ADVANTAGE OF MOISTURE FROM TROPICAL
SYSTEM BLANCA WHICH WILL RIDE NEWD FROM THE MEXICAN BAJA INTO THE
SWRN CONUS AND CONTINUING INTO THE NRN-CENTRAL PLAINS. THIS
TROPICAL AIRMASS WILL INCRS PWATS TO BETWEEN 1.50-2.00 FOR THU
INTO FRI...COINCIDENT WITH THE MOVEMENT OF THE LOW PRES CENTER
FROM NEBRASKA INTO NRN IA/SRN MN. RAIN CHANCES INCREASE
SIGNIFICANTLY THU-FRI...INCLUDING THE POSSIBILITY OF PERIODS OF
MOD-HVY RAIN AND A SMALL CHANCE FOR STRONG/SEVERE TSTMS. ONCE THIS
SYSTEM SLOWLY EXITS THE REGION FRI NIGHT INTO SAT...A MORE
TRANQUIL PERIOD WILL DEVELOP FOR THE UPCOMING WEEKEND. CANNOT RULE
OUT ADDITIONAL SHWRS/TSTMS FOR NEXT WEEKEND AS A SRN STREAM SYSTEM
LOOKS TO LIFT N INTO THE REGION...BUT THERE IS PLENTY OF
UNCERTAINTY THAT FAR OUT. AFTER THE BRIEF WARM SPELL FOR
TUESDAY...TEMPERATURES TUMBLE BACK DOWN TO NEAR-TO-BELOW NORMAL
LEVELS FOR THE LATTER HALF OF THE WEEK WITH THE LATE WEEK STORM
SYSTEM.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z MONDAY EVENING)
ISSUED AT 659 PM CDT SUN JUN 7 2015

ISOLATED TO SCATTERED TSRA WILL CONTINUE FOR A FEW HOURS THIS
EVENING IN RESPONSE TO A TROUGH OF LOW PRESSURE MOVING IN FROM
THE NORTHWEST. KAXN AND KEAU HAVE A PRETTY GOOD CHANCE FOR TSRA IN
THE NEXT HOUR. SOME FOG MAY OCCUR OVERNIGHT DUE TO THE SHOWERS
THIS AFTERNOON/EVENING...THE HEAVIER RAIN YESTERDAY ALONG WITH
LIGHT WINDS LATE TONIGHT. CONFIDENCE WAS HIGHEST FOR MENTION AT
KEAU...BUT MAY NEED TO ADD FOG WITH THE NEXT SET FOR KSTC. ON
MONDAY...NORTHWEST WINDS WILL INCREASE BY LATE MORNING WITH 12-15
KNOTS COMMON ALONG WITH GUSTS 18-24 KNOTS. MENTIONED VCSH FOR THE
LATE AFTERNOON AT ALL SITES WITH THE EXCEPTION OF KRWF AS
INSTABILITY BUILDS IN THE NORTHWEST FLOW ALOFT. CONFIDENCE IS
HIGHEST FOR THE SHOWERS AT KRNH AND KEAU PER THE CONSENSUS OF
CONVECTION ALLOWING MODELS.

KMSP...MULTIPLE OUTFLOW BOUNDARIES WILL CONTINUE TO CONVERGE
ACROSS THE TWIN CITIES OVER THE NEXT 1 TO 2 HOURS WHICH MAY
RESULT IN ADDITIONAL SHRA/TSRA DEVELOPMENT IN ADDITION TO THE
ACTIVITY CURRENTLY TO THE SOUTHEAST OF THE AIRFIELD.

/OUTLOOK FOR KMSP/

TUE...VFR. ISOLD TSRA IN THE EVENING. WIND SW 10 KTS BCMG NW LATE.
WED...VFR. WIND NW 10 KTS.
THU...MVFR/SHRA/TSRA LIKELY. ESE WIND 10 KTS.

&&

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

SHORT TERM...JLT
LONG TERM...JPC
AVIATION...RAH
Hazardous weather outlook, Jun 7, 9:39 PM CDT, 19 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
939 PM CDT SUN JUN 7 2015

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
081600-
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-
939 PM CDT SUN JUN 7 2015

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

.DAY ONE...TONIGHT.

ISOLATED THUNDERSTORMS WILL OCCUR THROUGH MIDNIGHT...ESPECIALLY
ACROSS CENTRAL MINNESOTA. A FEW OF THE STORMS WILL CONTAIN SMALL
HAIL AND GUSTY WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THUNDERSTORMS AND AREAS OF HEAVY RAIN ARE POSSIBLE FOR THE SECOND
HALF OF THIS WEEK...PARTICULARLY THURSDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Special weather statement, Jun 7, 9:14 PM CDT, 44 minutes before
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Special weather statement, Jun 7, 9:19 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
919 PM CDT SUN JUN 7 2015

MNZ044-045-080245-
KANABEC-MILLE LACS-
919 PM CDT SUN JUN 7 2015

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL MILLE LACS AND
SOUTHERN KANABEC COUNTIES...

AT 918 PM CDT...A STRONG THUNDERSTORM WAS 10 MILES WEST OF KNIFE
LAKE...OR 27 MILES WEST OF HINCKLEY...MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS OF 50 TO 55 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
MORA...OGILVIE...QUAMBA...MORA AIRPORT AND LEWIS LAKE.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4590 9314 4585 9314 4573 9347 4574 9348
      4593 9362 4605 9346
TIME...MOT...LOC 0218Z 314DEG 30KT 4597 9351

ADL
Special weather statement, Jun 7, 9:35 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
935 PM CDT SUN JUN 7 2015

MNZ044-045-050>052-080300-
KANABEC-SHERBURNE-BENTON-ISANTI-MILLE LACS-
935 PM CDT SUN JUN 7 2015

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN MILLE LACS...
NORTHWESTERN ISANTI...SOUTHWESTERN KANABEC...NORTH CENTRAL SHERBURNE
AND EASTERN BENTON COUNTIES...

AT 935 PM CDT...A STRONG THUNDERSTORM WAS OVER OAK PARK...OR 19 MILES
NORTHEAST OF ST. CLOUD...MOVING SOUTHEAST AT 35 MPH.

WIND GUSTS OF 50 TO 55 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
PRINCETON...MILACA...FOLEY...FORESTON...BOCK...GLENDORADO...DALBO...
PEASE...OAK PARK...RONNEBY...LEWIS LAKE AND PRINCETON AIRPORT.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4593 9361 4575 9331 4547 9370 4566 9397
      4583 9383 4583 9377 4590 9377 4595 9372
TIME...MOT...LOC 0235Z 314DEG 30KT 4573 9385

ADL
Local storm report, Jun 7, 9:36 PM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
936 PM CDT SUN JUN 7 2015

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

0835 PM     HAIL             2 N RANDALL             46.12N 94.51W
06/07/2015  E1.75 INCH       MORRISON           MN   PUBLIC

            PUBLIC REPORT OF GOLF BALL HAIL. TIME
            ESTIMATED FROM RADAR.

&&

JB
Local storm report, Jun 7, 9:54 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
954 PM CDT SUN JUN 7 2015

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

0900 PM     HAIL             ONAMIA                  46.07N 93.66W
06/07/2015  E0.88 INCH       MILLE LACS         MN   PUBLIC

            NICKEL SIZE HAIL THAT LASTED A WHILE.

&&

JB
Special weather statement, Jun 7, 9:58 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
958 PM CDT SUN JUN 7 2015

MNZ044-045-051>053-061-080330-
KANABEC-SHERBURNE-ISANTI-ANOKA-MILLE LACS-CHISAGO-
958 PM CDT SUN JUN 7 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN CHISAGO...
SOUTHEASTERN MILLE LACS...ISANTI...SOUTHERN KANABEC...EASTERN
SHERBURNE AND NORTHWESTERN ANOKA COUNTIES...

AT 956 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM NEAR GRASSTON TO NEAR BECKER...AND MOVING SOUTHEAST AT
45 MPH.

WIND GUSTS UP TO 50 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
CAMBRIDGE...ELK RIVER...BIG LAKE...ST. FRANCIS...ISANTI...
ZIMMERMAN...PRINCETON...MORA...RUSH CITY...BRAHAM...BRUNSWICK AND
OGILVIE.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 153 AND 163.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

LAT...LON 4584 9314 4573 9314 4573 9285 4572 9287
      4563 9289 4529 9361 4530 9366 4553 9388
      4556 9384 4556 9376 4561 9376 4591 9332
TIME...MOT...LOC 0256Z 330DEG 39KT 4581 9319 4547 9386

ADL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 7:00 PM CDTSpecial Weather StatementMPXDakota30 min
Jun 7, 7:25 PM CDTSpecial Weather StatementMPXBlue Earth35 min
Jun 7, 8:20 PM CDTSpecial Weather StatementMPXMille Lacs40 min
Jun 7, 8:25 PM CDTSevere Thunderstorm WarningMPXMorrison35 min
Jun 7, 8:51 PM CDTSpecial Weather StatementMPXMorrison24 min
Jun 7, 8:58 PM CDTSevere Thunderstorm WarningMPXMille Lacs32 min
Jun 7, 9:14 PM CDTSpecial Weather StatementMPXBenton31 min
Jun 7, 9:19 PM CDTSpecial Weather StatementMPXKanabec26 min
Jun 7, 9:35 PM CDTSpecial Weather StatementMPXMille Lacs25 min
Jun 7, 10:18 PM CDTSpecial Weather StatementMPXAnoka, Chisago42 min

Nearby

Special Weather Statements in Minnesota, 2015Every special weather statement in 2015

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.