Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 176, NWS Twin Cities, MN

June 29, 2005Stevens County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 29, 2005, 4:19 PM CDT for Stevens County, Minnesota. It was in force for 56 min. 1 report 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 29, 2005, 4:19 PM CDT (21:19 UTC)
Expired: Jun 29, 2005, 5:15 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Stevens County, MN

The radar

The Aberdeen radar (KABR), 184 km from the middle of the area, began a volume at 21:19 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 29, 5:10 PM CDT	TSTM WND DMG	Morris, MN	TREE DOWN.

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 29, 11:30 AM CDT	Tornado Watch	SPC	7 hr
Jun 29, 3:50 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.3 hours before the alert went out and 199 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: 432 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 521 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 292121
SVRMPX
MNC149-292215-
/O.NEW.KMPX.SV.W.0176.050629T2119Z-050629T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
419 PM CDT WED JUN 29 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  STEVENS COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 515 PM CDT

* AT 414 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE           
  THUNDERSTORMS...CAPABLE OF PRODUCING HAIL UP TO GOLF BALL SIZE AND 
  WIND GUSTS UP TO 70 MPH. THESE STORMS WERE LOCATED ALONG A LINE    
  EXTENDING FROM WHEATON TO 14 MILES SOUTH OF WHEATON TO 6 MILES     
  WEST OF BIG STONE CITY...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MORRIS...
  CHOKIO...
  DONNELLY...
  ALBERTA... 

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4576 9625 4557 9626 4541 9624 4541 9612
      4542 9577 4576 9578 4575 9582

$$
MKM/RJN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 5:12 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	63 min
Jun 29, 5:14 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	46 min
Jun 29, 5:24 PM CDT	Severe Thunderstorm Warning	MPX	Swift	51 min
Jun 29, 5:55 PM CDT	Tornado Warning	MPX	Redwood	36 min
Jun 29, 6:10 PM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	20 min
Jun 29, 6:14 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Todd	61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005 Every severe thunderstorm warning in 2005

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.