Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 129, NWS Twin Cities, MN

June 7, 2004Chippewa County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 7, 2004, 11:48 PM CDT for Chippewa County, Swift County, Minnesota. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 7, 2004, 11:48 PM CDT (04:48 UTC)
Expired: Jun 8, 2004, 12:45 AM CDT
In force: 57 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Chippewa County, MN, Swift County, MN

The radar

The Minneapolis radar (KMPX), 171 km from the middle of the area, began a volume at 04:48 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.

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 7, 10:25 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.8 hours before the alert went out and 168 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: 1588 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 2423 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 080448
SVRMPX
MNC023-151-080545-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1147 PM CDT MON JUN 7 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 1245 AM CDT

* AT 1144 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 12 MILES
  SOUTHWEST OF BENSON...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BENSON.
  BIG BEND.
  MILAN.
  KERKHOVEN.
  DE GRAFF.

HAIL UP TO THREE QUARTERS INCH IN DIAMETER HAS BEEN REPORTED IN 
APPLETON WITH THIS STORM FROM LAW ENFORCEMENT AT 1140 PM.

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 4534 9593 4511 9591 4510 9528 4536 9529

$$
MBK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 12:13 AM CDT	Severe Thunderstorm Warning	MPX	Yellow Medicine	47 min
Jun 8, 12:21 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	54 min
Jun 8, 12:46 AM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns	59 min
Jun 8, 1:14 AM CDT	Severe Thunderstorm Warning	MPX	Wright	61 min
Jun 8, 1:29 AM CDT	Severe Thunderstorm Warning	MPX	Sherburne	46 min
Jun 8, 1:49 AM CDT	Severe Thunderstorm Warning	MPX	Anoka, Carver, Hennepin	71 min
Jun 8, 1:54 AM CDT	Severe Thunderstorm Warning	MPX	Isanti, Mille Lacs	66 min
Jun 8, 2:16 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Swift	29 min
Jun 8, 2:18 AM CDT	Severe Thunderstorm Warning	MPX	Kanabec	57 min
Jun 8, 2:28 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	47 min
Jun 8, 2:53 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	52 min
Jun 8, 3:30 AM CDT	Severe Thunderstorm Warning	MPX	Wright	60 min
Jun 8, 4:23 AM CDT	Severe Thunderstorm Warning	MPX	Stearns	37 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2004 Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.