Alert archive / Minnesota / Tornado Warnings in 2015

Tornado Warning 24, NWS Twin Cities, MN

July 18, 2015Carver County, Hennepin County, Wright County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 18, 2015, 12:01 AM CDT for Carver County, Hennepin County, Wright County, Minnesota. It was in force for 29 min. 9 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, 12:01 AM CDT (05:01 UTC)
Expired: Jul 18, 2015, 12:30 AM CDT
In force: 29 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Carver County, MN, Hennepin County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 19 km from the middle of the area, began a volume at 05:02 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, 12:02 AM CDT	TSTM WND DMG	Watertown, MN	POWER LINES AND MANY TREES TOPPLED IN THE CITY.
Jul 18, 12:12 AM CDT	TSTM WND DMG	2 Nw St Bonifacius, MN	SIX INCH DIAMETER TREE BRANCH DOWN. OCCURRED ON NIKE ROAD. TIME ESTIMATED.
Jul 18, 12:12 AM CDT	TSTM WND DMG	4 N St Bonifacius, MN	FOUR INCH DIAMETER BRANCH SEVERED. OCCURRED NEAR INTERSECTION COUNTY ROAD 26 AND COUNTY ROAD 92. TIME ESTIMATED.
Jul 18, 12:14 AM CDT	TSTM WND DMG	1 N St Bonifacius, MN	PORTION OF OLD BARN BLOW IN. SOME DAMAGE TO OLD SILO. TIME ESTIMATED.
Jul 18, 12:14 AM CDT	TSTM WND DMG	4 Ne St Bonifacius, MN	TWO INCH DIAMETER TREE TOPPLED. OCCURRED ONE HALF MILE EAST OF INTERSECTION OF COUNTY ROAD 15 AND COUNTY ROAD 92. OCCURRED ON HICKORY LANE. TIME ESTIMATED.
Jul 18, 12:15 AM CDT	TSTM WND DMG	Minnetrista, MN	SIX TO EIGHT INCH DIAMETER TREE BROKEN OFF APPROXIMATELY 15 FEET FROM THE BASE. OCCURRED IN FAR NORTHWEST PORTION OF CITY ON OX YOKE CIRCLE JUST NORTH OF INTERSECTION OF COUNTY ROAD 92 AND 26. TIME ESTIMATED.
Jul 18, 12:16 AM CDT	TSTM WND DMG	4 W Mound, MN	SEVERAL 8 TO 12 INCH DIAMETER TREE BRANCHES SEVERED. TIME ESTIMATED.
Jul 18, 12:27 AM CDT	TSTM WND GST 58	Long Lake, MN
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.

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, 5.0 hours before the alert went out and 17 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.

910 
WFUS53 KMPX 180501
TORMPX
MNC019-053-171-180530-
/O.NEW.KMPX.TO.W.0024.150718T0501Z-150718T0530Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1201 AM CDT SAT JUL 18 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  SOUTH CENTRAL WRIGHT COUNTY IN CENTRAL MINNESOTA...
  NORTHERN CARVER COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 1230 AM CDT
    
* AT 1201 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER WATERTOWN...OR 15 MILES SOUTH OF
  BUFFALO...MOVING EAST AT 45 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  WATERTOWN AROUND 1205 AM CDT.
  DELANO AND ST. BONIFACIUS AROUND 1210 AM CDT.
  ROCKFORD AROUND 1215 AM CDT.
  CHANHASSEN...MOUND...ORONO...VICTORIA AND MINNETRISTA AROUND 1220
  AM CDT.
  MEDINA...WAYZATA AND EXCELSIOR AROUND 1225 AM CDT.
  PLYMOUTH...MINNETONKA...ST. LOUIS PARK AND HOPKINS AROUND 1230 AM
  CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
WOODLAND...NEW GERMANY...MEDICINE LAKE...LORETTO...SHOREWOOD...LONG
LAKE...GREENWOOD...LAKE WACONIA...HOLLYWOOD AND DEEPHAVEN.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 213 AND 217.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 136 AND 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4485 9397 4502 9403 4516 9343 4490 9340
TIME...MOT...LOC 0501Z 257DEG 37KT 4496 9390 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

4 follow-up statements

450 
WWUS53 KMPX 180502
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1202 AM CDT SAT JUL 18 2015

MNC019-053-171-180530-
/O.CON.KMPX.TO.W.0024.000000T0000Z-150718T0530Z/
HENNEPIN MN-WRIGHT MN-CARVER MN-
1202 AM CDT SAT JUL 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR WESTERN
HENNEPIN...SOUTH CENTRAL WRIGHT AND NORTHERN CARVER COUNTIES...
        
AT 1202 AM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR GREEN ISLE...OR
26 MILES SOUTHEAST OF HUTCHINSON...AND IS NEARLY STATIONARY.

HAZARD...DAMAGING TORNADO. 

SOURCE...RADAR CONFIRMED TORNADO. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
WESTERN HENNEPIN...SOUTH CENTRAL WRIGHT AND NORTHERN CARVER
COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...WOODLAND...NEW
GERMANY...MEDICINE LAKE...LORETTO...SHOREWOOD...LONG LAKE...
GREENWOOD...LAKE WACONIA...HOLLYWOOD AND DEEPHAVEN.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 213 AND 217.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 136 AND 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4485 9397 4502 9403 4516 9343 4490 9340
TIME...MOT...LOC 0502Z 257DEG 37KT 4463 9399 

TORNADO...OBSERVED
HAIL...<.75IN

$$

MPG

020 
WWUS53 KMPX 180505
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1205 AM CDT SAT JUL 18 2015

MNC019-053-171-180530-
/O.CON.KMPX.TO.W.0024.000000T0000Z-150718T0530Z/
HENNEPIN MN-WRIGHT MN-CARVER MN-
1205 AM CDT SAT JUL 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR WESTERN
HENNEPIN...SOUTH CENTRAL WRIGHT AND NORTHERN CARVER COUNTIES...
        
AT 1205 AM CDT...A CONFIRMED TORNADO WAS LOCATED OVER WATERTOWN...OR
15 MILES SOUTH OF BUFFALO...MOVING EAST AT 20 MPH.

HAZARD...DAMAGING TORNADO. 

SOURCE...RADAR CONFIRMED TORNADO. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IMPACTED INCLUDE...
PLYMOUTH...MAPLE GROVE...MINNETONKA...CHANHASSEN...HOPKINS...MOUND...
ORONO...VICTORIA...MINNETRISTA...DELANO...CORCORAN AND MEDINA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 213 AND 217.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 136 AND 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR
IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4485 9397 4502 9403 4516 9343 4490 9340
TIME...MOT...LOC 0505Z 252DEG 18KT 4496 9388 

TORNADO...OBSERVED
HAIL...<.75IN

$$

MPG

811 
WWUS53 KMPX 180513
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1213 AM CDT SAT JUL 18 2015

MNC019-171-180523-
/O.CAN.KMPX.TO.W.0024.000000T0000Z-150718T0530Z/
WRIGHT MN-CARVER MN-
1213 AM CDT SAT JUL 18 2015

...THE TORNADO WARNING FOR SOUTH CENTRAL WRIGHT AND NORTHERN CARVER
COUNTIES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS 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.

LAT...LON 4516 9343 4490 9340 4490 9376 4496 9377
      4506 9377 4508 9375
TIME...MOT...LOC 0513Z 256DEG 39KT 4499 9372 

$$

MNC053-180530-
/O.CON.KMPX.TO.W.0024.000000T0000Z-150718T0530Z/
HENNEPIN MN-
1213 AM CDT SAT JUL 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
NORTHWESTERN HENNEPIN COUNTY...
    
AT 1213 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER INDEPENDENCE...OR 15 MILES SOUTHEAST OF BUFFALO...
MOVING EAST AT 45 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

LOCATIONS IMPACTED INCLUDE...
PLYMOUTH...MAPLE GROVE...MINNETONKA...HOPKINS...MOUND...ORONO...
MINNETRISTA...DELANO...CORCORAN...MEDINA...ROCKFORD AND WAYZATA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 213 AND 217.
 U.S. HIGHWAY 12 BETWEEN MILE MARKERS 141 AND 156.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4516 9343 4490 9340 4490 9376 4496 9377
      4506 9377 4508 9375
TIME...MOT...LOC 0513Z 256DEG 39KT 4499 9372 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

177 
WWUS53 KMPX 180522
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1222 AM CDT SAT JUL 18 2015

MNC053-180531-
/O.EXP.KMPX.TO.W.0024.000000T0000Z-150718T0530Z/
HENNEPIN MN-
1222 AM CDT SAT JUL 18 2015

...THE TORNADO WARNING FOR NORTHWESTERN HENNEPIN COUNTY WILL EXPIRE
AT 1230 AM CDT...
                
THE STORM WHICH PROMPTED THE WARNING NO LONGER APPEARS CAPABLE OF PRODUCING A 
TORNADO. THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.  HOWEVER GUSTY WINDS
ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

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

LAT...LON 4516 9343 4490 9340 4490 9376 4496 9377
      4506 9377 4508 9375
TIME...MOT...LOC 0520Z 257DEG 37KT 4499 9372 

$$

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, 12:26 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Dakota, Hennepin, Ramsey, Sherburne, Washington and 1 more	49 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

Tornado Warnings in Minnesota, 2015 Every tornado warning in 2015 Tornadoes 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.