Alert archive / Minnesota / Special Weather Statements in 2013

Special Weather Statement, NWS Twin Cities, MN

May 17, 2013Todd County, Minnesota

NWS Twin Cities, MN issued this special weather statement at May 17, 2013, 11:24 PM CDT for Todd County, Minnesota. It was in force for 51 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, 2013, 11:24 PM CDT (04:24 UTC)
Expired
May 18, 2013, 12:15 AM CDT
In force
51 min
Issued by
NWS Twin Cities, MN

County Todd County, MN

The radar

The Minneapolis radar (KMPX), 181 km from the middle of the area, began a volume at 04:25 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

Aberdeen, SD (KABR), launched 00:00Z, 4.4 hours before the alert went out and 290 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, Aberdeen, SD at 00:00Z on 2013-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 369 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, Aberdeen, SD at 00:00Z on 2013-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 square meters per square second.193958Sfc1 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
369 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1870 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3

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, 7:05 PM CDT, 4 hours 19 minutes earlier.

Area forecast discussion, May 17, 7:05 PM CDT, 4 hours 19 minutes before
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Hazardous weather outlook, May 17, 7:10 PM CDT, 4 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
710 PM CDT FRI MAY 17 2013

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
190015-
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-
710 PM CDT FRI MAY 17 2013

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

.DAY ONE...TONIGHT

THUNDERSTORMS ARE EXPECTED TO REACH WEST CENTRAL MINNESOTA FROM
THE DAKOTAS BY DAYBREAK SATURDAY. SOME OF THESE STORMS MAY BE
STRONG...BUT ANY SEVERE ACTIVITY WOULD BE ISOLATED.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SEVERAL ROUNDS OF THUNDERSTORMS ARE EXPECTED THROUGH TUESDAY.
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE...ESPECIALLY SATURDAY
EVENING INTO SATURDAY NIGHT OVER FAR WESTERN AND SOUTHWESTERN
MINNESOTA...AND ACROSS MUCH OF CENTRAL AND SOUTHERN MINNESOTA
INTO WESTERN WISCONSIN SUNDAY.

RAINFALL AMOUNTS COULD EXCEED 4 INCHES BY TUESDAY. THESE AMOUNTS
MAY CAUSE SIGNIFICANT RISES IN RIVERS AND STREAMS...AND MAY ALSO
CAUSE URBAN FLOODING CONCERNS.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED OVER THE WEEKEND.

In the hours before

Special weather statement, May 17, 11:24 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1124 PM CDT FRI MAY 17 2013

MNZ041-042-180515-
DOUGLAS-TODD-
1124 PM CDT FRI MAY 17 2013

AT 1124 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 7 MILES NORTHEAST OF ALEXANDRIA...OR 16 MILES SOUTH OF
PARKERS PRAIRIE. THIS STORM WAS MOVING NORTHEAST AT 15 MPH.

PEA SIZE HAIL IS EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  LEAF VALLEY.
  BELLE RIVER.
  ROSE CITY.
  CLOTHO.
  CLARISSA.

LAT...LON 4597 9467 4583 9480 4609 9567 4612 9561
      4611 9516 4626 9515 4633 9495
TIME...MOT...LOC 0424Z 238DEG 15KT 4593 9527

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 1:17 AM CDTSpecial Weather StatementMPXPope28 min
May 18, 1:40 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Stearns, Todd50 min
May 18, 2:00 AM CDTSpecial Weather StatementMPXDouglas30 min
May 18, 2:34 AM CDTSpecial Weather StatementMPXStearns41 min
May 18, 7:42 AM CDTAreal Flood AdvisoryMPXCarver, Dakota, Hennepin, Wright3 hr
May 18, 9:08 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey37 min
May 18, 2:44 PM CDTFlash Flood WatchMPXAnoka, Benton, Carver, Chisago, Dakota, Douglas and 25 more44 hr
May 18, 6:54 PM CDTSpecial Weather StatementMPXDouglas51 min
May 18, 6:59 PM CDTSevere Thunderstorm WarningMPXDouglas61 min

Nearby

Special Weather Statements in Minnesota, 2013Every special weather statement in 2013

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.