Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 241, NWS Twin Cities, MN

August 25, 2004Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 25, 2004, 3:01 PM CDT for Yellow Medicine County, Minnesota. It was in force for 59 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: Aug 25, 2004, 3:01 PM CDT (20:01 UTC)
Expired: Aug 25, 2004, 4:00 PM CDT
In force: 59 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 150 km from the middle of the area, began a volume at 20:03 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
Aug 25, 3:15 PM CDT	TSTM WND GST 59	Hanley Falls, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.0 hours before the alert went out and 162 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: 257 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 892 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 41 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 252001
SVRMPX
MNC173-252100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
301 PM CDT WED AUG 25 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 400 PM CDT

* AT 257 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 6 MILES
  SOUTHWEST OF WOOD LAKE...OR ABOUT 13 MILES NORTHEAST OF MARSHALL...
  AND MOVING NORTH AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HANLEY FALLS.
  HAZEL RUN.
  WOOD LAKE.

LAT...LON 4464 9578 4455 9546 4470 9538 4490 9579

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 24, 7:12 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	63 min
Aug 25, 3:32 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Renville	58 min
Aug 25, 4:25 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Stevens	65 min
Aug 25, 4:37 PM CDT	Tornado Warning	MPX	Kandiyohi	23 min
Aug 25, 4:56 PM CDT	Severe Thunderstorm Warning	MPX	McLeod	64 min
Aug 25, 4:58 PM CDT	Tornado Warning	MPX	Kandiyohi	32 min
Aug 25, 6:24 PM CDT	Severe Thunderstorm Warning	MPX	Pope	36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.