Alert archive / Minnesota / Tornado Warnings in 2008

Tornado Warning 5, NWS Twin Cities, MN

May 25, 2008Hennepin County, Wright County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 25, 2008, 4:03 PM CDT for Hennepin County, Wright County, Minnesota. It was in force for 27 min. 3 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: May 25, 2008, 4:03 PM CDT (21:03 UTC)
Expired: May 25, 2008, 4:30 PM CDT
In force: 27 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon

Counties Hennepin County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 36 km from the middle of the area, began a volume at 20:56 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
May 25, 4:03 PM CDT	HAIL 1	2 Ne Buffalo, MN
May 25, 4:04 PM CDT	HAIL 1	Buffalo, MN
May 25, 4:35 PM CDT	HAIL 2	1 Ne St Michael, MN

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
May 25, 2:04 PM CDT	Tornado Watch PDS	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.1 hours before the alert went out and 36 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: 58 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -3.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMPX 252105
TORMPX
MNC053-171-252130-
/O.NEW.KMPX.TO.W.0005.080525T2103Z-080525T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
403 PM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL WRIGHT COUNTY IN CENTRAL MINNESOTA...
  NORTHERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 430 PM CDT

* AT 400 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS NEAR BUFFALO...OR
  ABOUT OVER BUFFALO...AND MOVING EAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROCKFORD...
  GREENFIELD...
  ALBERTVILLE...
  ST MICHAEL...
  HANOVER...
  CORCORAN...
  ROGERS...
  HAMEL...
  DAYTON...
  MAPLE GROVE...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

LAT...LON 4526 9355 4518 9336 4501 9328 4512 9391
      4523 9386
TIME...MOT...LOC 2103Z 276DEG 34KT 4520 9381

$$

RAH/TRH

1 follow-up statement

000 
WWUS53 KMPX 252123
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
422 PM CDT SUN MAY 25 2008

MNC053-171-252130-
/O.CON.KMPX.TO.W.0005.000000T0000Z-080525T2130Z/
WRIGHT MN-HENNEPIN MN-
422 PM CDT SUN MAY 25 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR NORTHERN
HENNEPIN AND EXTREME EASTERN WRIGHT COUNTIES...

AT 417 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WITH STRONG ROTATION.  THE MOST DANGEROUS PART OF THE
STORM WAS LOCATED NEAR ROGERS...OR ABOUT 2 MILES NORTHWEST OF
ROGERS...AND MOVING EAST AT 40 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ST MICHAEL...ROGERS...OSSEO...
HANOVER...DAYTON...CHAMPLIN...AND ALBERTVILLE.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

LAT...LON 4509 9332 4517 9379 4525 9364 4526 9355
      4524 9352 4524 9351 4518 9336
TIME...MOT...LOC 2122Z 276DEG 34KT 4520 9352

$$

RAH/TRH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 7:43 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Yellow Medicine	62 min
May 25, 8:24 AM CDT	Severe Thunderstorm Warning	MPX	Swift	51 min
May 25, 9:01 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Swift	44 min
May 25, 9:24 AM CDT	Severe Thunderstorm Warning	MPX	Stearns	66 min
May 25, 10:01 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Sherburne, Stearns	44 min
May 25, 10:42 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Isanti, Kanabec, Mille Lacs	63 min
May 25, 11:10 AM CDT	Severe Thunderstorm Warning	MPX	Isanti	27 min
May 25, 11:34 AM CDT	Severe Thunderstorm Warning	MPX	Chisago	26 min
May 25, 3:04 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns, Wright	56 min
May 25, 3:36 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Sherburne, Wright	54 min
May 25, 3:49 PM CDT	Tornado Warning	MPX	Sherburne, Wright	26 min
May 25, 4:01 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Meeker, Mille Lacs, Sherburne, Stearns, Wright	59 min
May 25, 4:13 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti, Washington	62 min
May 25, 4:37 PM CDT	Tornado Warning	MPX	Anoka, Ramsey, Washington	23 min
May 25, 4:41 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Wright	49 min
May 25, 4:56 PM CDT	Tornado Warning	MPX	Anoka, Ramsey, Washington	34 min
May 25, 5:02 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	28 min
May 25, 5:17 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Isanti, Washington	43 min
May 25, 5:25 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Ramsey, Washington	35 min
May 25, 6:00 PM CDT	Severe Thunderstorm Warning	MPX	Washington	30 min

Nearby

Tornado Warnings in Minnesota, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.