Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 163, NWS Twin Cities, MN

June 17, 20124 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2012, 7:21 PM CDT for 4 counties in Minnesota. It was in force for 39 min. 2 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: Jun 17, 2012, 7:21 PM CDT (00:21 UTC)
Expired: Jun 17, 2012, 8:00 PM CDT
In force: 39 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Lac qui Parle County, MN, Pope County, MN, Stevens County, MN, Swift County, MN

The radar

The Aberdeen radar (KABR), 181 km from the middle of the area, began a volume at 00:21 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
Jun 17, 7:24 PM CDT	HAIL 1.25	2 S Starbuck, MN
Jun 17, 7:58 PM CDT	FUNNEL CLOUD	4 Nw Appleton, MN	FUNNEL HALF WAY TO THE GROUND.

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
Jun 17, 3:45 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 0.4 hours before the alert went out and 186 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: 985 J/kg
Mixed-layer CIN: -159 J/kg
Mixed-layer LCL: 1934 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -60 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

312 
WUUS53 KMPX 180021
SVRMPX
MNC073-121-149-151-180100-
/O.NEW.KMPX.SV.W.0163.120618T0021Z-120618T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
721 PM CDT SUN JUN 17 2012

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...
  POPE COUNTY IN WEST CENTRAL MINNESOTA...
  STEVENS COUNTY IN WEST CENTRAL MINNESOTA...
  WESTERN SWIFT COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 800 PM CDT

* AT 717 PM CDT...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS...
  CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 9 MILES SOUTHEAST OF CHARLESVILLE TO GRACEVILLE TO 25 MILES
  WEST OF LAGOONA BEACH...AND MOVING EAST AT 50 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MORRIS...
  GLENWOOD...
  CHOKIO...
  DONNELLY...
  ALBERTA...
  CYRUS...
  HANCOCK...
  LOWRY...
  BELLINGHAM...
  STARBUCK...
  LONG BEACH...
  CLONTARF...
  LOUISBURG...
  HOLLOWAY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE WINDS...WHICH CAN UPROOT
TREES...DOWN POWER LINES...AND CAUSE DAMAGE TO ROOFS AND WINDOWS.
EVACUATE MOBILE HOMES AS THEY MAY BE OVERTURNED. LARGE HAIL IS ALSO
EXPECTED...WHICH CAN CAUSE DAMAGE TO VEHICLES AND WINDOWS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SUNDAY EVENING
FOR SOUTHWESTERN MINNESOTA.

&&

LAT...LON 4527 9645 4526 9629 4523 9627 4520 9614
      4523 9611 4524 9613 4540 9613 4542 9625
      4576 9626 4575 9515 4543 9545 4525 9582
      4508 9619 4515 9646
TIME...MOT...LOC 0022Z 276DEG 46KT 4583 9609 4553 9638
          4535 9690
WIND...HAIL 70MPH 1.00IN

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:06 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Swift	39 min
Jun 17, 7:12 PM CDT	Tornado Warning	MPX	Chippewa, Swift	48 min
Jun 17, 7:15 PM CDT	Tornado Warning	MPX	Pope, Swift	26 min
Jun 17, 7:53 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Pope, Stevens, Swift	67 min
Jun 17, 7:58 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Swift	47 min
Jun 17, 8:06 PM CDT	Tornado Warning	MPX	Chippewa, Kandiyohi, Swift	24 min
Jun 17, 8:25 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle, Swift	35 min
Jun 17, 8:33 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	42 min
Jun 17, 8:36 PM CDT	Areal Flood Advisory	MPX	Chippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Stearns and 2 more	3 hr
Jun 17, 8:45 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Lac qui Parle, Renville, Swift, Yellow Medicine	45 min
Jun 17, 8:56 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Sherburne, Stearns, Wright	49 min
Jun 17, 9:06 PM CDT	Tornado Warning	MPX	Kandiyohi, McLeod, Meeker	24 min
Jun 17, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Meeker, Renville	65 min
Jun 17, 9:25 PM CDT	Tornado Warning	MPX	Carver, McLeod, Meeker, Wright	35 min
Jun 17, 9:28 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	47 min
Jun 17, 9:45 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Meeker, Sherburne, Stearns, Wright	45 min
Jun 17, 9:50 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod, Meeker, Sibley, Wright	40 min
Jun 17, 10:08 PM CDT	Areal Flood Advisory	MPX	Anoka, Carver, Dakota, Hennepin, McLeod, Meeker and 6 more	3 hr
Jun 17, 10:24 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Le Sueur, McLeod, Scott, Sibley and 1 more	51 min
Jun 17, 10:24 PM CDT	Tornado Warning	MPX	Renville	36 min
Jun 17, 10:30 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	30 min
Jun 17, 10:41 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville, Sibley	49 min
Jun 17, 10:50 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	40 min
Jun 17, 10:57 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	33 min
Jun 17, 11:10 PM CDT	Special Weather Statement	MPX	Dakota, Ramsey, Scott	50 min
Jun 17, 11:22 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Nicollet, Rice, Scott, Sibley	38 min
Jun 17, 11:28 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Scott, Washington	32 min
Jun 17, 11:32 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	43 min
Jun 17, 11:44 PM CDT	Flash Flood Warning	MPX	Dakota, Goodhue, Rice	6 hr
Jun 17, 11:50 PM CDT	Tornado Warning	MPX	Le Sueur	25 min
Jun 17, 11:53 PM CDT	Special Weather Statement	MPX	Meeker	52 min
Jun 17, 11:58 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Le Sueur, Rice	47 min
Jun 18, 12:20 AM CDT	Special Weather Statement	MPX	McLeod	40 min
Jun 18, 12:25 AM CDT	Special Weather Statement	MPX	Scott	50 min
Jun 18, 12:26 AM CDT	Special Weather Statement	MPX	Goodhue	49 min
Jun 18, 12:45 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Rice	45 min
Jun 18, 12:46 AM CDT	Flash Flood Warning	MPX	Dakota, Le Sueur, Rice, Scott	4 hr
Jun 18, 1:05 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	40 min
Jun 18, 1:27 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue, Rice	33 min
Jun 18, 1:30 AM CDT	Special Weather Statement	MPX	Scott	30 min
Jun 18, 5:33 AM CDT	Areal Flood Warning	MPX	Dakota, Goodhue, Rice	6 hr
Jun 18, 11:17 AM CDT	River Flood Warning	MPX	Carver	10 days
Jun 18, 11:33 AM CDT	Areal Flood Warning	MPX	Dakota, Goodhue	18 hr
Jun 18, 4:31 PM CDT	Flash Flood Watch	MPX	Anoka, Benton, Carver, Chippewa, Chisago, Dakota and 24 more	56 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.