Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 201, NWS Twin Cities, MN

July 3, 2007Dakota County, Rice County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 2007, 2:04 PM CDT for Dakota County, Rice County, Minnesota. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 3, 2007, 2:04 PM CDT (19:04 UTC)
Expired: Jul 3, 2007, 2:31 PM CDT
In force: 27 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Dakota County, MN, Rice County, MN

The radar

The Minneapolis radar (KMPX), 52 km from the middle of the area, began a volume at 19:07 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.

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 3, 12:10 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.1 hours before the alert went out and 54 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: 1198 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 975 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 031904
SVRMPX
MNC037-131-031945-
/O.NEW.KMPX.SV.W.0201.070703T1904Z-070703T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
204 PM CDT TUE JUL 3 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DAKOTA COUNTY IN EAST CENTRAL MINNESOTA...
  RICE COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 245 PM CDT

* AT 203 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR NORTHFIELD...OR
  ABOUT 11 MILES NORTH OF FARIBAULT...AND MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NORTHFIELD...
  INTERSTATE 35 WEST OF NORTHFIELD...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT TUESDAY EVENING
FOR SOUTHEASTERN MINNESOTA.

LAT...LON 4448 9331 4439 9328 4438 9305 4458 9304

$$

1 follow-up statement

000 
WWUS53 KMPX 031931
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
232 PM CDT TUE JUL 3 2007

MNC037-131-031942-
/O.CAN.KMPX.SV.W.0201.000000T0000Z-070703T1945Z/
DAKOTA MN-RICE MN-
232 PM CDT TUE JUL 3 2007

...THE SEVERE THUNDERSTORM WARNING FOR RICE AND DAKOTA COUNTIES IS
CANCELLED...

RADAR INDICATED THAT THE SEVERE THUNDERSTORM HAD MOVED OUT OF THE
WARNED AREA. THUS THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT TUESDAY EVENING 
FOR CENTRAL AND SOUTHEASTERN MINNESOTA.

LAT...LON 4448 9331 4439 9328 4438 9305 4458 9304

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 11:56 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	49 min
Jul 3, 12:46 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Stearns, Wright	44 min
Jul 3, 1:54 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	51 min
Jul 3, 2:30 PM CDT	Severe Thunderstorm Warning	MPX	Chisago	45 min
Jul 3, 2:51 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	39 min
Jul 3, 3:06 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	39 min
Jul 3, 3:40 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	45 min
Jul 3, 4:48 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice, Scott	42 min
Jul 3, 5:13 PM CDT	Severe Thunderstorm Warning	MPX	Wright	62 min
Jul 3, 5:26 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	64 min
Jul 3, 5:36 PM CDT	Severe Thunderstorm Warning	MPX	Steele, Waseca	54 min
Jul 3, 5:46 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth	44 min
Jul 3, 6:13 PM CDT	Tornado Warning	MPX	Faribault, Freeborn	32 min
Jul 3, 6:27 PM CDT	Severe Thunderstorm Warning	MPX	Steele, Waseca	63 min
Jul 3, 6:37 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.