Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 101, NWS Twin Cities, MN

July 17, 20154 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2015, 11:09 PM CDT for 4 counties in Minnesota. It was in force for 51 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 17, 2015, 11:09 PM CDT (04:09 UTC)
Expired
Jul 18, 2015, 12:00 AM CDT
In force
51 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties McLeod County, MN, Meeker County, MN, Stearns County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 67 km from the middle of the area, began a volume at 04:10 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.

What was reported inside it

TimeReportWhereRemark
Jul 17, 11:31 PM CDTTSTM WND GST 48Hutchinson, MN
Jul 17, 11:32 PM CDTHAIL 0.753 Wnw Hutchinson, MN
Jul 17, 11:45 PM CDTTSTM WND GST 541 N Hutchinson, MNMEASURED WITH ANEMOMETER.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 17, 8:39 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.2 hours before the alert went out and 65 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 2015-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 888 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2015-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
888 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1752 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

562 
WUUS53 KMPX 180409
SVRMPX
MNC085-093-145-171-180500-
/O.NEW.KMPX.SV.W.0101.150718T0409Z-150718T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1109 PM CDT FRI JUL 17 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  MEEKER COUNTY IN CENTRAL MINNESOTA...
  NORTHERN MCLEOD COUNTY IN CENTRAL MINNESOTA...
  WESTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...

* UNTIL MIDNIGHT CDT

* AT 1108 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR ROSCOE TO NEAR EDEN VALLEY TO NEAR COSMOS...
  MOVING EAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  EDEN VALLEY AROUND 1115 PM CDT.
  RICHMOND AND WATKINS AROUND 1120 PM CDT.
  COLD SPRING AND KIMBALL AROUND 1130 PM CDT.
  ROCKVILLE AROUND 1135 PM CDT.
  HUTCHINSON AND ANNANDALE AROUND 1140 PM CDT.
  SILVER LAKE AROUND 1150 PM CDT.
  MAPLE LAKE AROUND 1155 PM CDT.
  CLEARWATER AND LESTER PRAIRIE AROUND 1200 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
GREENLEAF...FAIRHAVEN...FOREST CITY...WAVERLY...DARWIN...ST
AUGUSTA...RASSAT...SMITH LAKE...LUXEMBURG AND SOUTH HAVEN.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 173 AND 182.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 93 AND 129.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4547 9410 4545 9410 4540 9401 4522 9391
      4498 9399 4497 9401 4489 9402 4489 9476
      4502 9476 4528 9457 4547 9468
TIME...MOT...LOC 0408Z 278DEG 34KT 4545 9470 4529 9458 4490 9474 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
425 
WWUS53 KMPX 180431
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1131 PM CDT FRI JUL 17 2015

MNC085-093-145-171-180500-
/O.CON.KMPX.SV.W.0101.000000T0000Z-150718T0500Z/
STEARNS MN-MEEKER MN-MCLEOD MN-WRIGHT MN-
1131 PM CDT FRI JUL 17 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR SOUTHEASTERN STEARNS...MEEKER...NORTHERN MCLEOD AND WESTERN
WRIGHT COUNTIES...

AT 1131 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ST NICHOLAS TO NEAR KIMBALL TO NEAR LAKESIDE...MOVING
EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  HUTCHINSON...ANNANDALE AND KIMBALL AROUND 1145 PM CDT.
  SILVER LAKE AROUND 1155 PM CDT.
  MAPLE LAKE...CLEARWATER AND LESTER PRAIRIE AROUND 1200 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
GREENLEAF...FAIRHAVEN...FOREST CITY...WAVERLY...DARWIN...ST
AUGUSTA...RASSAT...SMITH LAKE...LUXEMBURG AND SOUTH HAVEN.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 173 AND 182.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 96 AND 129.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4547 9410 4545 9410 4540 9401 4522 9391
      4498 9399 4497 9401 4489 9402 4489 9470
      4505 9464 4528 9457 4547 9468
TIME...MOT...LOC 0431Z 279DEG 32KT 4539 9446 4523 9434 4484 9450 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:48 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift, Yellow Medicine57 min
Jul 17, 8:57 PM CDTSevere Thunderstorm WarningMPXStevens, Swift63 min
Jul 17, 9:28 PM CDTSevere Thunderstorm WarningMPXChippewa, Pope, Stevens, Swift47 min
Jul 17, 9:44 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Lac qui Parle, Swift61 min
Jul 17, 10:17 PM CDTSevere Thunderstorm WarningMPXChippewa, Renville, Yellow Medicine28 min
Jul 17, 10:30 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Stearns45 min
Jul 17, 10:41 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville, Yellow Medicine34 min
Jul 17, 11:03 PM CDTSevere Thunderstorm WarningMPXBrown, McLeod, Nicollet, Redwood, Renville, Sibley42 min
Jul 17, 11:44 PM CDTSevere Thunderstorm WarningMPXBrown, Carver, Le Sueur, McLeod, Nicollet, Scott and 1 more46 min
Jul 17, 11:52 PM CDTSevere Thunderstorm WarningMPXHennepin, Sherburne, Wright38 min
Jul 18, 12:01 AM CDTTornado WarningMPXCarver, Hennepin, Wright29 min
Jul 18, 12:26 AM CDTSevere Thunderstorm WarningMPXAnoka, Dakota, Hennepin, Ramsey, Sherburne, Washington and 1 more49 min
Jul 18, 12:29 AM CDTSevere Thunderstorm WarningMPXDakota, Le Sueur, Rice, Scott31 min
Jul 18, 12:55 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Rice, Steele, Waseca, Washington50 min
Jul 18, 1:06 AM CDTSevere Thunderstorm WarningMPXChisago, Washington39 min
Jul 18, 1:25 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Renville, Yellow Medicine34 min
Jul 18, 1:27 AM CDTSevere Thunderstorm WarningMPXGoodhue48 min
Jul 18, 1:42 AM CDTSpecial Weather StatementMPXAnoka, Dakota, Hennepin, Ramsey63 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.