Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 96, NWS Twin Cities, MN

June 10, 2007Chippewa County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 10, 2007, 7:20 PM CDT for Chippewa County, Yellow Medicine County, Minnesota. It was in force for 55 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 10, 2007, 7:20 PM CDT (00:20 UTC)
Expired: Jun 10, 2007, 8:15 PM CDT
In force: 55 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Chippewa County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 154 km from the middle of the area, began a volume at 00:22 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 10, 8:10 PM CDT	TSTM WND GST 61	Hanley Falls, MN	MEASURED BY MNDOT SENSOR ALONG HIGHWAY 23.
Jun 10, 8:15 PM CDT	TSTM WND GST 66	Hanley Falls, MN	GUST INCREASED TO 66 MPH PER MNDOT SENSOR ALONG HIGHWAY 23.

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 10, 2:30 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.3 hours before the alert went out and 151 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: 114 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 2096 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 6 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.

000 
WUUS53 KMPX 110021
SVRMPX
MNC023-173-110115-
/O.NEW.KMPX.SV.W.0096.070611T0020Z-070611T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
720 PM CDT SUN JUN 10 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA...
  YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 815 PM CDT

* AT 718 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE           
  THUNDERSTORMS...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND 60      
  MPH WINDS. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING  FROM  
  12 MILES NORTH OF CLARA CITY TO 7 MILES NORTH OF GRANITE FALLS     
  TO 12 MILES SOUTHWEST OF CLARKFIELD...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CLARA CITY...
  GRANITE FALLS...
  WOOD LAKE...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4516 9540 4491 9563 4462 9621 4463 9545
      4489 9551 4491 9529 4513 9525

$$

1 follow-up statement

000 
WWUS53 KMPX 110059
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
758 PM CDT SUN JUN 10 2007

MNC023-173-110115-
/O.CON.KMPX.SV.W.0096.000000T0000Z-070611T0115Z/
CHIPPEWA MN-YELLOW MEDICINE MN-
758 PM CDT SUN JUN 10 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR YELLOW MEDICINE  AND CHIPPEWA COUNTIES IN WEST CENTRAL
MINNESOTA...

AT 755 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 65 
MPH. NICKEL SIZE HAIL IS ALSO LIKELY.  THESE STORMS WERE LOCATED 
ALONG A LINE EXTENDING FROM 6 MILES EAST OF CLARA CITY TO 4 MILES 
SOUTH OF HAZEL RUN...AND MOVING SOUTHEAST AT 35 MPH.

THE WARNING FOR YELLOW MEDICINE COUNTY MAY NEED TO BE EXTENDED 
BEYOND 815 PM. 

OTHER LOCATIONS IN THE WARNING INCLUDE SPRING CREEK...GLUEK...
ASBURY...WOOD LAKE...MAYNARD...HAZEL RUN...HANLEY FALLS...GRANITE
FALLS AND CLARA CITY.

LAT...LON 4515 9537 4491 9563 4464 9599 4463 9545
      4489 9551 4491 9529 4513 9525

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 7:16 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	44 min
Jun 10, 7:46 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Renville	59 min
Jun 10, 8:15 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	45 min
Jun 10, 8:38 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	67 min
Jun 10, 8:45 PM CDT	Severe Thunderstorm Warning	MPX	Renville	60 min
Jun 10, 9:14 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi	61 min
Jun 10, 9:55 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	55 min
Jun 10, 11:09 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	36 min
Jun 10, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Stevens	33 min
Jun 11, 12:12 AM CDT	Severe Thunderstorm Warning	MPX	Redwood	38 min
Jun 11, 12:22 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	53 min
Jun 11, 12:40 AM CDT	Flash Flood Warning	MPX	Redwood	2 hr
Jun 11, 1:00 AM CDT	Flash Flood Warning	MPX	Brown	2 hr
Jun 11, 1:14 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	31 min
Jun 11, 2:21 AM CDT	Severe Thunderstorm Warning	MPX	Renville	21 min
Jun 11, 2:32 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	11 min
Jun 11, 2:39 AM CDT	Severe Thunderstorm Warning	MPX	Stearns	32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007 Every severe thunderstorm warning in 2007

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.