Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 54, NWS Twin Cities, MN

June 2, 2007Dakota County, Ramsey County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 2, 2007, 4:14 PM CDT for Dakota County, Ramsey County, Minnesota. It was in force for 45 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
Jun 2, 2007, 4:14 PM CDT (21:14 UTC)
Expired
Jun 2, 2007, 4:59 PM CDT
In force
45 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Dakota County, MN, Ramsey County, MN

The radar

The Minneapolis radar (KMPX), 37 km from the middle of the area, began a volume at 21:17 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
Jun 2, 4:26 PM CDTHAIL 0.88West St Paul, MN
Jun 2, 4:30 PM CDTTSTM WND DMGLilydale, MNFEW TREES DOWN.
Jun 2, 4:35 PM CDTHAIL 0.75St Paul, MNNEAR HIGHLAND NATIONAL GOLF COURSE.

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, 9.2 hours before the alert went out and 40 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 2007-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2007-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
10 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 022114
SVRMPX
MNC037-123-022215-
/O.NEW.KMPX.SV.W.0054.070602T2114Z-070602T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
414 PM CDT SAT JUN 2 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 515 PM CDT

* AT 413 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...   
  CAPABLE OF PRODUCING LARGE HAIL TO THE SIZE OF QUARTERS.  THIS     
  STORM WAS LOCATED NEAR SOUTH ST PAUL...OR ABOUT OVER ST PAUL...AND 
  MOVING NORTH AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WEST ST PAUL...
  ST PAUL...
  MAPLEWOOD...
  ROSEVILLE...
  VADNAIS HEIGHTS...
  WHITE BEAR LAKE...
  ARDEN HILLS...
  SHOREVIEW...

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 4483 9316 4481 9303 4512 9299 4512 9321

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 022129
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
428 PM CDT SAT JUN 2 2007

MNC037-123-022215-
/O.CON.KMPX.SV.W.0054.000000T0000Z-070602T2215Z/
RAMSEY MN-DAKOTA MN-
428 PM CDT SAT JUN 2 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR DAKOTA AND RAMSEY COUNTIES...

AT 426 PM CDT...NICKEL SIZE HAIL WAS REPORTED IN WEST SAINT PAUL 
WITH THIS STORM.

AT 426 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE 
THUNDERSTORM...CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL AND 60 MPH 
WINDS.  THIS STORM WAS LOCATED OVER WEST SAINT PAUL...AND MOVING 
NORTHWEST AT 10 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE LILYDALE...GEM LAKE...WHITE
BEAR LAKE...WEST ST PAUL...VADNAIS HEIGHTS...ST PAUL...SOUTH ST
PAUL...SHOREVIEW...ROSEVILLE AND NORTH OAKS.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 4486 9315 4487 9303 4512 9299 4512 9321

$$

KAT
000 
WWUS53 KMPX 022159
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
459 PM CDT SAT JUN 2 2007

MNC037-123-022209-
/O.CAN.KMPX.SV.W.0054.000000T0000Z-070602T2215Z/
RAMSEY MN-DAKOTA MN-
459 PM CDT SAT JUN 2 2007

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN DAKOTA AND RAMSEY 
COUNTIES IS CANCELLED...

RADAR INDICATED THAT THE STORM HAD WEAKENED TO BELOW SEVERE LIMITS. 
THUS THE WARNING HAS BEEN CANCELLED. PRIOR TO WEAKENING...THE STORM 
PRODUCED HAIL TO THE SIZE OF NICKELS IN DAKOTA COUNTY...AND ALSO 
DOWNED SOME TREES IN LILYDALE.

LAT...LON 4486 9315 4487 9303 4512 9299 4512 9321

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 1:47 PM CDTTornado WarningMPXMcLeod, Sibley43 min
Jun 2, 2:16 PM CDTSevere Thunderstorm WarningMPXDakota, Ramsey, Washington44 min
Jun 2, 2:28 PM CDTSevere Thunderstorm WarningMPXSibley47 min
Jun 2, 2:49 PM CDTSevere Thunderstorm WarningMPXAnoka41 min
Jun 2, 2:58 PM CDTSevere Thunderstorm WarningMPXMeeker47 min
Jun 2, 3:11 PM CDTFlash Flood WarningMPXSibley94 min
Jun 2, 3:45 PM CDTSevere Thunderstorm WarningMPXStearns, Wright30 min
Jun 2, 3:49 PM CDTSevere Thunderstorm WarningMPXDakota26 min
Jun 2, 4:13 PM CDTSevere Thunderstorm WarningMPXRenville32 min
Jun 2, 4:51 PM CDTSevere Thunderstorm WarningMPXSherburne, Wright54 min
Jun 2, 5:08 PM CDTSevere Thunderstorm WarningMPXHennepin39 min
Jun 2, 6:07 PM CDTSevere Thunderstorm WarningMPXMorrison23 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007Every severe thunderstorm warning in 2007

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.