Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Twin Cities, MN

July 15, 2015Benton County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 15, 2015, 6:20 PM CDT for Benton County, Minnesota. It was in force for 85 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
Jul 15, 2015, 6:20 PM CDT (23:20 UTC)
Expired
Jul 15, 2015, 7:45 PM CDT
In force
85 min
Issued by
NWS Twin Cities, MN

County Benton County, MN

The radar

The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 23:23 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 12:00Z, 11.3 hours before the alert went out and 94 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 2015-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2015-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 68 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1211 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
68 m²/s²
0-3 km storm-relative helicity
94 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.

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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 Jul 15, 5:56 PM CDT, 24 minutes earlier.

Area forecast discussion, Jul 15, 5:56 PM CDT, 24 minutes before
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Hazardous weather outlook, Jul 15, 11:32 AM CDT, 6 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1132 AM CDT WED JUL 15 2015

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
161200-
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-
1132 AM CDT WED JUL 15 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

ISOLATED TO SCATTERED THUNDERSTORMS CAN BE EXPECTED ACROSS MUCH OF
CENTRAL AND SOUTHERN MINNESOTA THROUGH THIS AFTERNOON...THEN
SPREADING INTO WESTERN WISCONSIN TONIGHT WHILE COVERAGE BECOMES
NUMEROUS ACROSS SOUTHERN MINNESOTA. SEVERE WEATHER IS NOT
EXPECTED...ALTHOUGH SOME STORMS MAY CONTAIN HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE
INTO THURSDAY ACROSS SOUTHERN AND EASTERN MINNESOTA AND WESTERN
WISCONSIN. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

THUNDERSTORMS ARE POSSIBLE AT TIMES FROM FRIDAY NIGHT THROUGH
SUNDAY. A FEW SEVERE STORMS MAY DEVELOP DURING THIS PERIOD.

HIGH HEAT AND HUMIDITY WILL RETURN FRIDAY AND SATURDAY...WITH
HEAT INDICES OF 90 TO 100 SOUTH OF INTERSTATE 94 ON FRIDAY AND
AROUND 100 AREA WIDE ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Special weather statement, Jul 15, 5:45 PM CDT, 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
545 PM CDT WED JUL 15 2015

MNZ049-160045-
STEARNS-
545 PM CDT WED JUL 15 2015

...VERY HEAVY RAIN AND LOCALIZED MINOR FLOODING EXPECTED...

VERY HEAVY RAIN WITH THE POTENTIAL FOR LOCALIZED FLOODING WILL AFFECT
THE FOLLOWING COUNTIES...

STEARNS...

AT 540 PM CDT...VERY HEAVY RAIN WITH THE POTENTIAL FOR LOCALIZED
FLOODING WAS OVER HOLDINGFORD...OR A FEW MILES TO THE NORTH AND
NORTHWEST OF ST. CLOUD. RAINFALL ESTIMATES SHOW LOCALIZED AREAS
BETWEEN HOLDINGFORD AND AVON HAVE RECEIVED NEARLY 2.5 INCHES OF RAIN
OVER THE LAST 90 MINUTES. THIS IS LIKELY RESULTING IN STANDING WATER
IN LOW LYING AREAS AND WILL RESULT IN QUICK RISES IN THE WATER LEVEL
ALONG SPUNK CREEK IN THE ST. WENDEL AREA.

LOCATIONS IMPACTED INCLUDE...
SARTELL...SAUK RAPIDS...COLLEGEVILLE...AVON...HOLDINGFORD...OPOLE...
ST. STEPHEN AND ST WENDEL.

THIS INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 155 AND
157.

LAT...LON 4575 9433 4565 9420 4562 9421 4560 9418
      4559 9418 4558 9434 4563 9449 4575 9458
TIME...MOT...LOC 2240Z 275DEG 0KT 4566 9437
Special weather statement, Jul 15, 6:20 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 5:45 PM CDTSpecial Weather StatementMPXStearns2 hr

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.