Alert archive / Wisconsin / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

May 17, 2015Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this special weather statement at May 17, 2015, 5:54 PM CDT for Saint Croix County, Wisconsin. It was in force for 36 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
May 17, 2015, 5:54 PM CDT (22:54 UTC)
Expired
May 17, 2015, 6:30 PM CDT
In force
36 min
Issued by
NWS Twin Cities, MN

County Saint Croix County, WI

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.9 hours before the alert went out and 100 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 12:00Z on 2015-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 314 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 12:00Z on 2015-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 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
314 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
255 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

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 May 17, 4:12 PM CDT, 1 hour 42 minutes earlier.

Area forecast discussion, May 17, 4:12 PM CDT, 1 hour 42 minutes before
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Hazardous weather outlook, May 17, 2:38 PM CDT, 3 hours 16 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
238 PM CDT SUN MAY 17 2015

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
181945-
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-
238 PM CDT SUN MAY 17 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE STORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON.
THERE IS A SLIGHT RISK OF SEVERE WEATHER THIS AFTERNOON AND
EVENING. THE BEST CHANCE FOR SEVERE WEATHER IS IN EASTERN
MINNESOTA AND WESTERN WISCONSIN WHERE HAIL AND DAMAGING WINDS ARE
POSSIBLE. IN ADDITION...THERE IS A THREAT FOR TORNADOES TODAY.
THE STORMS TODAY WILL BE MOVING FAST...SO THE WEATHER IN YOUR
AREA COULD CHANGE QUICKLY. STAY TUNED TO THE FORECAST TODAY AND
FOR ANY POTENTIAL WATCHES OR WARNINGS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL BE NEEDED TODAY.

In the hours before

Special weather statement, May 17, 4:28 PM CDT, 1 hour 26 minutes before
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Special weather statement, May 17, 5:11 PM CDT, 43 minutes before
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Special weather statement, May 17, 5:27 PM CDT, 27 minutes before
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Special weather statement, May 17, 5:32 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
532 PM CDT SUN MAY 17 2015

MNZ078-WIZ023-024-172300-
GOODHUE-ST. CROIX-PIERCE-
532 PM CDT SUN MAY 17 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL GOODHUE...PIERCE
AND SOUTH CENTRAL ST. CROIX COUNTIES...

AT 531 PM CDT...A STRONG THUNDERSTORM WAS OVER DIAMOND BLUFF...OR 7
MILES NORTH OF RED WING...MOVING NORTHEAST AT 55 MPH.

WINDS IN EXCESS OF 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
RED WING...RIVER FALLS...ELLSWORTH...BALDWIN...SPRING VALLEY...
ELMWOOD...BAY CITY...EL PASO...DIAMOND BLUFF...HAGER CITY...ESDAILE
AND BELDENVILLE.

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 4449 9255 4463 9274 4471 9273 4473 9276
      4499 9248 4482 9213 4477 9214
TIME...MOT...LOC 2231Z 216DEG 46KT 4467 9258

ADL
Special weather statement, May 17, 5:50 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
550 PM CDT SUN MAY 17 2015

WIZ014-015-023-172315-
ST. CROIX-POLK-BARRON-
550 PM CDT SUN MAY 17 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN ST. CROIX...
SOUTHEASTERN POLK AND SOUTHWESTERN BARRON COUNTIES...

AT 550 PM CDT...A STRONG THUNDERSTORM WAS OVER DEER PARK...OR 25
MILES NORTHEAST OF RIVER FALLS...MOVING NORTHEAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL BE NEAR...
  CLEAR LAKE AROUND 555 PM CDT.
  AMERY AROUND 600 PM CDT.
  CLAYTON AROUND 605 PM CDT.
  TURTLE LAKE AROUND 610 PM CDT.
  ALMENA AROUND 615 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE FOREST...JOEL...
ARLAND...RANGE...DEER PARK...REEVE AND CYLON.

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 4536 9189 4521 9213 4521 9216 4519 9216
      4504 9239 4516 9244 4550 9223
TIME...MOT...LOC 2250Z 216DEG 45KT 4518 9234

ADL
Special weather statement, May 17, 5:54 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
554 PM CDT SUN MAY 17 2015

WIZ014-023-024-172330-
ST. CROIX-POLK-PIERCE-
554 PM CDT SUN MAY 17 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL PIERCE...CENTRAL
ST. CROIX AND SOUTH CENTRAL POLK COUNTIES...

AT 553 PM CDT...A STRONG THUNDERSTORM WAS NEAR HAMMOND...OR 9 MILES
NORTHEAST OF RIVER FALLS...MOVING NORTHEAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THIS
STORM.

THIS STORM WILL REMAIN OVER MAINLY RURAL AREAS OF CENTRAL ST.
CROIX...SOUTH CENTRAL POLK AND NORTH CENTRAL PIERCE COUNTIES...
INCLUDING THE FOLLOWING LOCATIONS...EMERALD...FOREST...CYLON...MARTEL
AND DEER PARK.

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 4481 9235 4486 9259 4530 9248 4519 9216
      4513 9215
TIME...MOT...LOC 2253Z 197DEG 52KT 4493 9244

ADL

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 7:03 PM CDTSevere Thunderstorm WarningMPXMeeker, Renville27 min
May 16, 7:15 PM CDTTornado WarningMPXMcLeod, Meeker, Renville30 min
May 16, 7:34 PM CDTTornado WarningMPXChippewa, Swift26 min
May 16, 7:35 PM CDTTornado WarningMPXMeeker25 min
May 16, 7:40 PM CDTTornado WarningMPXMeeker35 min
May 16, 7:44 PM CDTTornado WarningMPXDouglas, Pope31 min
May 16, 8:10 PM CDTSpecial Weather StatementMPXStearns50 min
May 16, 8:25 PM CDTTornado WarningMPXMeeker, Stearns35 min
May 16, 9:21 PM CDTSpecial Weather StatementMPXCarver, Sherburne, Wright39 min
May 16, 10:39 PM CDTSpecial Weather StatementMPXSherburne, Wright2 hr
May 17, 7:27 AM CDTSpecial Weather StatementMPXRenville33 min
May 17, 7:55 AM CDTSpecial Weather StatementMPXChippewa, Renville, Swift35 min
May 17, 9:38 AM CDTSpecial Weather StatementMPXDouglas, Pope, Stevens, Swift, Todd52 min
May 17, 1:51 PM CDTSpecial Weather StatementMPXFaribault24 min
May 17, 2:03 PM CDTSpecial Weather StatementMPXStearns27 min
May 17, 2:07 PM CDTSpecial Weather StatementMPXChippewa23 min
May 17, 2:15 PM CDTSpecial Weather StatementMPXMeeker30 min
May 17, 2:18 PM CDTSpecial Weather StatementMPXWaseca27 min
May 17, 2:30 PM CDTSpecial Weather StatementMPXFaribault30 min
May 17, 2:49 PM CDTSpecial Weather StatementMPXWaseca26 min
May 17, 3:01 PM CDTSpecial Weather StatementMPXMeeker29 min
May 17, 3:08 PM CDTSpecial Weather StatementMPXWaseca37 min
May 17, 3:16 PM CDTSpecial Weather StatementMPXBenton29 min
May 17, 3:32 PM CDTSpecial Weather StatementMPXMeeker28 min
May 17, 3:39 PM CDTSpecial Weather StatementMPXBenton36 min
May 17, 3:42 PM CDTSpecial Weather StatementMPXSherburne33 min
May 17, 3:54 PM CDTSpecial Weather StatementMPXMeeker36 min
May 17, 4:03 PM CDTSpecial Weather StatementMPXDakota27 min
May 17, 4:12 PM CDTSpecial Weather StatementMPXMille Lacs33 min
May 17, 4:17 PM CDTSpecial Weather StatementMPXSherburne28 min
May 17, 4:28 PM CDTSpecial Weather StatementMPXSherburne32 min
May 17, 5:11 PM CDTSpecial Weather StatementMPXGoodhue34 min
May 17, 6:16 PM CDTWind AdvisoryMPXBlue Earth, Brown, Carver, Chippewa, Dakota, Douglas and 26 more10 hr
May 17, 5:27 PM CDTSpecial Weather StatementMPXSaint Croix33 min
May 17, 5:32 PM CDTSpecial Weather StatementMPXPierce28 min
May 17, 5:50 PM CDTSpecial Weather StatementMPXBarron25 min
May 17, 6:20 PM CDTSpecial Weather StatementMPXBarron25 min

Nearby

Special Weather Statements in Wisconsin, 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.