Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 74, NWS Twin Cities, MN

May 31, 2008Anoka County, Hennepin County, Ramsey County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 31, 2008, 5:25 PM CDT for Anoka County, Hennepin County, Ramsey County, Minnesota. It was in force for 65 min. 27 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 31, 2008, 5:25 PM CDT (22:25 UTC)
Expired
May 31, 2008, 6:30 PM CDT
In force
65 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Anoka County, MN, Hennepin County, MN, Ramsey County, MN

The radar

The Minneapolis radar (KMPX), 32 km from the middle of the area, began a volume at 22:25 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

TimeReportWhereRemark
May 31, 5:40 PM CDTHAIL 0.88Dayton, MNAT INTERSECTION OF COUNTY ROADS 12 AND 13.
May 31, 5:47 PM CDTFUNNEL CLOUDCorcoran, MNGOING UP AND DOWN BUT HAS NOT TOUCHED DOWN AT THIS TIME. LOCATION IS LIKELY NORTHERN CORCORAN.
May 31, 5:52 PM CDTHAIL 1.75Rogers, MN
May 31, 5:53 PM CDTHAIL 0.75Brooklyn Park, MNAT BROOKLYN BLVD AND ZANE.
May 31, 5:57 PM CDTHAIL 12 Wnw Maple Grove, MN
May 31, 5:59 PM CDTHAIL 0.88Maple Grove, MNAT INTERSTATE 94 AND HEMLOCK. METEOROLOGIST CHASER ALSO SEES SIGNIFICANT RFD WIND BUT NO FUNNEL.
May 31, 5:59 PM CDTHAIL 1.5Rogers, MN
May 31, 6:02 PM CDTHAIL 1Maple Grove, MNINTERSTATE 94 AND COUNTY ROAD 30.
May 31, 6:03 PM CDTHAIL 1.75Maple Grove, MNOVER WESTERN AND CENTRAL PORTIONS OF MAPLE GROVE PER CITY POLICE.
May 31, 6:07 PM CDTHAIL 1Maple Grove, MNAT I-94 AND HEMLOCK.
May 31, 6:09 PM CDTHAIL 1.753 Ne Plymouth, MN
May 31, 6:10 PM CDTHAIL 0.75Brooklyn Park, MNAT 169 AND 63RD.
May 31, 6:10 PM CDTHAIL 1Plymouth, MN169 AND SCHMIDT LAKE RD.
May 31, 6:12 PM CDTHAIL 1Crystal, MN
May 31, 6:12 PM CDTHAIL 1Plymouth, MN494 AND COUNTY ROAD 9.
May 31, 6:14 PM CDTHAIL 1New Hope, MN
May 31, 6:15 PM CDTHAIL 0.75Crystal, MNBOONE AVE AND 32ND.
May 31, 6:15 PM CDTHAIL 0.75Robbinsdale, MNAT NORTH MEMORIAL HOSPITAL.
May 31, 6:17 PM CDTHAIL 1Maple Grove, MNINTERSTATE 94 AND COUNTY ROAD 30.
May 31, 6:22 PM CDTHAIL 15 Wsw Minneapolis, MNMINNETONKA BLVD AND LOUISIANA.
May 31, 6:22 PM CDTHAIL 1Golden Valley, MNONE MILE NORTH OF HIGHWAY 55 AND WINNETKA.
May 31, 6:22 PM CDTHAIL 1St Louis Park, MNHIGHWAY 100 AND COUNTY ROAD 40.
May 31, 6:24 PM CDTHAIL 1.75St Louis Park, MNLAKE STREET AND MINNETONKA
May 31, 6:28 PM CDTHAIL 1Golden Valley, MNNEAR EXCELSIOR AND HAWTHORNE.
May 31, 6:28 PM CDTHAIL 1.75St Louis Park, MNHIGHWAY 100 AND MINNETONKA
May 31, 6:32 PM CDTHAIL 1Golden Valley, MNHIGHWAY 100 AND INTERSTATE 394.
May 31, 6:35 PM CDTHAIL 0.75Minneapolis, MNNEAR LORING PARK ON EDGE OF DOWNTOWN.

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.

IssuedProductOfficeLasted
May 31, 2:51 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.4 hours before the alert went out and 33 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2008-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2008-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
16 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
7 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 312225
SVRMPX
MNC003-053-123-312330-
/O.NEW.KMPX.SV.W.0074.080531T2225Z-080531T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
525 PM CDT SAT MAY 31 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
  RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 630 PM CDT

* AT 521 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED 3 MILES WEST OF ANOKA...AND
  MOVING SOUTHEAST AT 23 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ANOKA...
  ANDOVER...
  MAPLE GROVE...
  COON RAPIDS...
  PLYMOUTH...
  BROOKLYN PARK...
  BLAINE...
  GOLDEN VALLEY...
  FRIDLEY...
  MOUNDS VIEW...
  ST LOUIS PARK...
  NEW BRIGHTON...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

LAT...LON 4492 9305 4495 9308 4492 9313 4493 9344
      4503 9366 4515 9369 4516 9365 4521 9364
      4525 9351 4529 9352 4532 9346 4529 9302
      4492 9300
TIME...MOT...LOC 2225Z 306DEG 20KT 4520 9343

$$
1 follow-up statement
000 
WWUS53 KMPX 312312
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
611 PM CDT SAT MAY 31 2008

MNC003-053-123-312330-
/O.CON.KMPX.SV.W.0074.000000T0000Z-080531T2330Z/
ANOKA MN-HENNEPIN MN-RAMSEY MN-
611 PM CDT SAT MAY 31 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR RAMSEY...CENTRAL HENNEPIN AND EXTREME SOUTH CENTRAL ANOKA
COUNTIES...

AT 605 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS SEVERE THUNDERSTORM WAS LOCATED NEAR
NEW HOPE...OR ABOUT 3 MILES NORTHEAST OF PLYMOUTH...AND MOVING
SOUTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SPRING LAKE PARK...MEDICINE 
LAKE...MINNEAPOLIS...HAMEL...GEM LAKE...VADNAIS HEIGHTS...
ST PAUL...ST LOUIS PARK...SHOREVIEW AND ROSEVILLE.

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

LAT...LON 4492 9300 4492 9304 4495 9308 4492 9313
      4493 9344 4504 9359 4510 9357 4516 9341
      4511 9301
TIME...MOT...LOC 2311Z 328DEG 35KT 4501 9338

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 7:09 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Waseca36 min
May 31, 2:24 PM CDTSevere Thunderstorm WarningMPXLe Sueur51 min
May 31, 3:08 PM CDTSevere Thunderstorm WarningMPXLe Sueur, Rice, Steele, Waseca67 min
May 31, 4:15 PM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn, Steele, Waseca48 min
May 31, 4:15 PM CDTSevere Thunderstorm WarningMPXBenton, Sherburne60 min
May 31, 4:23 PM CDTSevere Thunderstorm WarningMPXMorrison67 min
May 31, 4:43 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs, Morrison62 min
May 31, 5:01 PM CDTSevere Thunderstorm WarningMPXSherburne, Wright59 min
May 31, 5:16 PM CDTTornado WarningMPXSherburne, Wright44 min
May 31, 5:28 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Morrison62 min
May 31, 5:38 PM CDTTornado WarningMPXHennepin, Wright40 min
May 31, 6:17 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti58 min
May 31, 6:26 PM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Ramsey, Scott50 min
May 31, 6:44 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs, Morrison46 min
May 31, 6:45 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Washington45 min
May 31, 6:55 PM CDTTornado WarningMPXAnoka, Chisago, Washington50 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning 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.