Alert archive / Minnesota / Tornado Warnings in 2010

Tornado Warning 57, NWS Twin Cities, MN

July 10, 2010Douglas County, Pope County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 10, 2010, 6:55 PM CDT for Douglas County, Pope County, Minnesota. It was in force for 65 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: Jul 10, 2010, 6:55 PM CDT (23:55 UTC)
Expired: Jul 10, 2010, 8:00 PM CDT
In force: 65 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Douglas County, MN, Pope County, MN

The radar

The Minneapolis radar (KMPX), 176 km from the middle of the area, began a volume at 23:55 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
Jul 10, 7:30 PM CDT	HAIL 1.75	Starbuck, MN
Jul 10, 7:45 PM CDT	HAIL 1.25	2 Wnw Glenwood, MN	TIME WAS ESTIMATED

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
Jul 10, 4:48 PM CDT	Tornado Watch	SPC	3 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.9 hours before the alert went out and 174 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: 578 J/kg
Mixed-layer CIN: -115 J/kg
Mixed-layer LCL: 1632 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 4 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.

485 
WFUS53 KMPX 102355
TORMPX
MNC041-121-110100-
/O.NEW.KMPX.TO.W.0057.100710T2355Z-100711T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
655 PM CDT SAT JUL 10 2010

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  FAR SOUTHERN DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA...
  POPE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 800 PM CDT

* AT 649 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG
  ROTATION. THE MOST DANGEROUS PART OF THE STORM WAS 3 MILES WEST OF
  LONG BEACH...AND MOVING EAST AT 25 MPH.

* LOCATIONS IN THE WARNING INCLUDE...
  GLENWOOD...
  LONG BEACH...
  FORADA...
  SEDAN...
  VILLARD...
  GROVE LAKE...
  WESTPORT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT SATURDAY EVENING
FOR WEST CENTRAL MINNESOTA.

&&

LAT...LON 4565 9573 4581 9560 4582 9514 4548 9514
      4546 9574
TIME...MOT...LOC 2355Z 260DEG 20KT 4566 9545

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 6:10 AM CDT	Special Weather Statement	MPX	Kanabec	65 min
Jul 10, 6:40 AM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	50 min
Jul 10, 7:48 AM CDT	Special Weather Statement	MPX	Kandiyohi	57 min
Jul 10, 8:00 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	45 min
Jul 10, 10:51 AM CDT	Special Weather Statement	MPX	McLeod	54 min
Jul 10, 3:29 PM CDT	Special Weather Statement	MPX	Dakota	46 min
Jul 10, 5:02 PM CDT	Tornado Warning	MPX	Douglas	58 min
Jul 10, 5:17 PM CDT	Tornado Warning	MPX	Pope, Stevens	58 min
Jul 10, 5:58 PM CDT	Tornado Warning	MPX	Douglas, Pope	62 min
Jul 10, 6:00 PM CDT	Tornado Warning	MPX	Douglas	60 min
Jul 10, 6:26 PM CDT	Tornado Warning	MPX	Stevens	19 min
Jul 10, 6:47 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	58 min
Jul 10, 6:58 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	41 min

Nearby

Tornado Warnings in Minnesota, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.