Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 104, NWS Twin Cities, MN

July 18, 20157 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 18, 2015, 12:26 AM CDT for 7 counties in Minnesota. It was in force for 49 min. 15 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 18, 2015, 12:26 AM CDT (05:26 UTC)
Expired: Jul 18, 2015, 1:15 AM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Anoka County, MN, Dakota County, MN, Hennepin County, MN, Ramsey County, MN, Sherburne County, MN, Washington County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 44 km from the middle of the area, began a volume at 05:29 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

Time	Report	Where	Remark
Jul 18, 12:35 AM CDT	TSTM WND GST 48	Big Lake, MN	MEASURED WITH ANEMOMETER.
Jul 18, 12:35 AM CDT	TSTM WND GST 48	Big Lake, MN	MEASURED WITH ANEMOMETER. OCCURRED NEAR HIGHWAY 10 AND COUNTY ROAD 81.
Jul 18, 12:36 AM CDT	TSTM WND GST 61	Golden Valley, MN	VIA WEATHER UNDERGROUND/THE WEATHER CHANNEL.
Jul 18, 12:40 AM CDT	TSTM WND DMG	Maple Grove, MN	FOUR TO FIVE INCH DIAMETER TREE LIMBS SEVERED. OCCURRED ON DALLAS LANE NORTH. DIME SIZE HAIL ALSO REPORTED.
Jul 18, 12:40 AM CDT	TSTM WND GST 67	2 Wnw Richfield, MN
Jul 18, 12:53 AM CDT	TSTM WND GST 62	St Paul Airport, MN
Jul 18, 12:56 AM CDT	TSTM WND GST 70	New Brighton, MN	SIXTY FIVE TO 70 MPH WINDS REPORTED BY WEATHER EYE RADIO.
Jul 18, 1:00 AM CDT	TSTM WND DMG	North Oaks, MN	MULTIPLE TREES AND LARGE LIMBS DOWN.
Jul 18, 1:00 AM CDT	TORNADO 0	1 Ne Shoreview, MN	TORNADO STARTED IN THE NORTHWEST PORTION OF NORTH OAKS... NEAR CHARLEY LAKE AND MOVED EAST-NORTHEAST TO THE SOUTHERN SIDE OF DEEP LAKE...WHERE THE GREATEST NUMBER OF TREES WERE TOPPLED OR SNAPPED. SOME TREES FELL ON HOUSES...VEHICLES AND OTHER STRUCTURES. THE
Jul 18, 1:04 AM CDT	TSTM WND DMG	New Brighton, MN	NUMEROUS MEDIUM SIZE TREE LIMBS SEVERED. ONE AS LARGE AS 5 TO 6 INCHES IN DIAMETER. REPORTED BY WEATHER EYE RADIO.
Jul 18, 1:10 AM CDT	TSTM WND GST 56	Flying Cloud Airport, MN
Jul 18, 1:12 AM CDT	NON-TSTM WND GST 58	Flying Cloud Airport, MN
Jul 18, 1:14 AM CDT	TSTM WND DMG	1 E Excelsior, MN	LARGE TREE BRANCH DAMAGED ROOF NEAR CHRISTMAS LAKE. POWER ALSO LOST ON SITE.
Jul 18, 1:15 AM CDT	TSTM WND DMG	Hugo, MN	SEVERAL 6 INCH DIAMETER TREES TOPPLED. OCCURRED IN NORTHWEST PORTION OF CITY.
Jul 18, 1:15 AM CDT	TSTM WND DMG	Hugo, MN	TREES AND POWER LINES DOWN. TIME ESTIMATED FROM PREVIOUS REPORT.

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.

Issued	Product	Office	Lasted
Jul 17, 8:39 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 46 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

471 
WUUS53 KMPX 180526
SVRMPX
MNC003-037-053-123-141-163-171-180615-
/O.NEW.KMPX.SV.W.0104.150718T0526Z-150718T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1226 AM CDT SAT JUL 18 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...
  HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHEASTERN WRIGHT COUNTY IN CENTRAL MINNESOTA...
  SOUTHEASTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA...
  ANOKA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 115 AM CDT

* AT 1226 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR BIG LAKE TO WAYZATA TO NEAR FLYING CLOUD
  AIRPORT...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  PLYMOUTH...EDEN PRAIRIE...MINNETONKA...ST. LOUIS PARK AND SHAKOPEE
  AROUND 1230 AM CDT.
  MINNEAPOLIS...EDINA...BROOKLYN CENTER AND GOLDEN VALLEY AROUND 1235
  AM CDT.
  BURNSVILLE...RICHFIELD AND COLUMBIA HEIGHTS AROUND 1240 AM CDT.
  BLOOMINGTON...ROSEVILLE...ST. MICHAEL...OTSEGO AND ST. FRANCIS
  AROUND 1245 AM CDT.
  EAGAN...RAMSEY...CHAMPLIN...ROSEMOUNT AND MENDOTA HEIGHTS AROUND
  1250 AM CDT.
  ST. PAUL...MAPLEWOOD...INVER GROVE HEIGHTS...ANDOVER AND SOUTH ST.
  PAUL AROUND 1255 AM CDT.
  COON RAPIDS...COTTAGE GROVE...OAKDALE...HAM LAKE AND ST. PAUL PARK
  AROUND 100 AM CDT.
  WOODBURY...LAKE ELMO AND AFTON AROUND 105 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE NORTH
MINNEAPOLIS...FLYING CLOUD AIRPORT...SOUTH ST PAUL AIRPORT...AFTON
STATE PARK...LAKELAND SHORES...NEW HOPE...NORTH ST. PAUL...SOUTH ST
PAUL...COMO PARK AND ST PAUL PARK.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 128 AND 133.
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 194 AND 258.
 U.S. HIGHWAY 10 IN MINNESOTA BETWEEN MILE MARKERS 195 AND 302.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 153 AND 156.
 U.S. HIGHWAY 169 BETWEEN MILE MARKERS 118 AND 165.
 U.S. HIGHWAY 212 BETWEEN MILE MARKERS 155 AND 162.
 U.S. HIGHWAY 8 IN MINNESOTA BETWEEN MILE MARKERS 0 AND 1.
 U.S. HIGHWAY 61 BETWEEN MILE MARKERS 119 AND 162.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4538 9302 4530 9302 4529 9291 4510 9276
      4506 9280 4503 9276 4497 9277 4494 9275
      4475 9281 4481 9352 4489 9352 4490 9356
      4499 9355 4541 9390
TIME...MOT...LOC 0526Z 278DEG 39KT 4535 9378 4499 9349 4483 9350 

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

MPG

3 follow-up statements

484 
WWUS53 KMPX 180546
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1246 AM CDT SAT JUL 18 2015

MNC003-037-053-123-141-163-171-180615-
/O.CON.KMPX.SV.W.0104.000000T0000Z-150718T0615Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-WRIGHT MN-SHERBURNE MN-WASHINGTON MN-
ANOKA MN-
1246 AM CDT SAT JUL 18 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHERN DAKOTA...HENNEPIN...RAMSEY...NORTHEASTERN WRIGHT...
SOUTHEASTERN SHERBURNE...WASHINGTON AND ANOKA COUNTIES...

AT 1246 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NOWTHEN TO NEAR ST. PAUL TO EAGAN...MOVING EAST AT 45
MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

THESE SEVERE STORMS WILL BE NEAR...
  ST. PAUL...EAGAN...MAPLEWOOD...INVER GROVE HEIGHTS AND ROSEVILLE
AROUND 1250 AM CDT.
  COTTAGE GROVE...OAKDALE...WHITE BEAR LAKE AND ST. PAUL PARK AROUND
1255 AM CDT.
  WOODBURY AROUND 100 AM CDT.
  BLAINE...HASTINGS...LINO LAKES...LAKE ELMO AND BAYPORT AROUND 105
AM CDT.
  HUDSON AND PRESCOTT AROUND 110 AM CDT.
  FOREST LAKE AND HUGO AROUND 115 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE NORTH
MINNEAPOLIS...FLYING CLOUD AIRPORT...SOUTH ST PAUL AIRPORT...AFTON
STATE PARK...LAKELAND SHORES...NEW HOPE...NORTH ST. PAUL...SOUTH ST
PAUL...COMO PARK AND ST PAUL PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4538 9302 4530 9302 4529 9291 4510 9276
      4506 9280 4503 9276 4497 9277 4494 9275
      4475 9281 4481 9352 4509 9352 4541 9376
TIME...MOT...LOC 0546Z 277DEG 41KT 4532 9343 4496 9314 4480 9315 

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

074 
WWUS53 KMPX 180600
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
100 AM CDT SAT JUL 18 2015

MNC141-171-180610-
/O.CAN.KMPX.SV.W.0104.000000T0000Z-150718T0615Z/
WRIGHT MN-SHERBURNE MN-
100 AM CDT SAT JUL 18 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WRIGHT AND
SOUTHEASTERN SHERBURNE COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
EAST CENTRAL MINNESOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 700 AM CDT FOR WEST CENTRAL WISCONSIN.

LAT...LON 4538 9302 4530 9302 4529 9291 4510 9276
      4506 9280 4503 9276 4497 9277 4494 9275
      4475 9281 4479 9329 4510 9330 4540 9350
TIME...MOT...LOC 0600Z 277DEG 40KT 4530 9321 4494 9292 4478 9293 

$$

MNC003-037-053-123-163-180615-
/O.CON.KMPX.SV.W.0104.000000T0000Z-150718T0615Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-WASHINGTON MN-ANOKA MN-
100 AM CDT SAT JUL 18 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHERN DAKOTA...EASTERN HENNEPIN...RAMSEY...WASHINGTON AND
ANOKA COUNTIES...

AT 100 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR HAM LAKE TO WOODBURY TO NEAR COTTAGE GROVE...
MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

THESE SEVERE STORMS WILL BE NEAR...
  WOODBURY...HASTINGS...LAKE ELMO...BAYPORT AND AFTON AROUND 105 AM
CDT.
  HUDSON AND PRESCOTT AROUND 110 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE NORTH
MINNEAPOLIS...SOUTH ST PAUL AIRPORT...AFTON STATE PARK...LAKELAND
SHORES...NORTH ST. PAUL...SOUTH ST PAUL...COMO PARK...ST PAUL PARK...
UNIV OF MN MINNEAPOLIS CAMPUS AND NEWPORT.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 128 AND 133.
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 225 AND 258.
 U.S. HIGHWAY 10 IN MINNESOTA BETWEEN MILE MARKERS 226 AND 302.
 U.S. HIGHWAY 8 IN MINNESOTA BETWEEN MILE MARKERS 0 AND 1.
 U.S. HIGHWAY 61 BETWEEN MILE MARKERS 119 AND 162.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4538 9302 4530 9302 4529 9291 4510 9276
      4506 9280 4503 9276 4497 9277 4494 9275
      4475 9281 4479 9329 4510 9330 4540 9350
TIME...MOT...LOC 0600Z 277DEG 40KT 4530 9321 4494 9292 4478 9293 

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

598 
WWUS53 KMPX 180612
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
112 AM CDT SAT JUL 18 2015

MNC003-037-053-123-163-180622-
/O.EXP.KMPX.SV.W.0104.000000T0000Z-150718T0615Z/
DAKOTA MN-HENNEPIN MN-RAMSEY MN-WASHINGTON MN-ANOKA MN-
112 AM CDT SAT JUL 18 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DAKOTA...EASTERN
HENNEPIN...RAMSEY...WASHINGTON AND ANOKA COUNTIES WILL EXPIRE AT 115
AM CDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
EAST CENTRAL MINNESOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN
EFFECT UNTIL 700 AM CDT FOR WEST CENTRAL WISCONSIN.

LAT...LON 4538 9302 4530 9302 4529 9291 4510 9276
      4506 9280 4503 9276 4497 9277 4494 9275
      4475 9281 4479 9329 4510 9330 4540 9350
TIME...MOT...LOC 0609Z 278DEG 39KT 4530 9321 4494 9292 4478 9293 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:48 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Swift, Yellow Medicine	57 min
Jul 17, 8:57 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	63 min
Jul 17, 9:28 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Pope, Stevens, Swift	47 min
Jul 17, 9:44 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Swift	61 min
Jul 17, 10:17 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Renville, Yellow Medicine	28 min
Jul 17, 10:30 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Stearns	45 min
Jul 17, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	34 min
Jul 17, 11:03 PM CDT	Severe Thunderstorm Warning	MPX	Brown, McLeod, Nicollet, Redwood, Renville, Sibley	42 min
Jul 17, 11:09 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Stearns, Wright	51 min
Jul 17, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Carver, Le Sueur, McLeod, Nicollet, Scott and 1 more	46 min
Jul 17, 11:52 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Sherburne, Wright	38 min
Jul 18, 12:01 AM CDT	Tornado Warning	MPX	Carver, Hennepin, Wright	29 min
Jul 18, 12:29 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice, Scott	31 min
Jul 18, 12:55 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice, Steele, Waseca, Washington	50 min
Jul 18, 1:06 AM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	39 min
Jul 18, 1:25 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Renville, Yellow Medicine	34 min
Jul 18, 1:27 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	48 min
Jul 18, 1:42 AM CDT	Special Weather Statement	MPX	Anoka, Dakota, Hennepin, Ramsey	63 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2015 Every 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.