Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 31, NWS Twin Cities, MN

May 23, 2007Blue Earth County, Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 23, 2007, 2:43 PM CDT for Blue Earth County, Faribault County, Minnesota. It was in force for 62 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: May 23, 2007, 2:43 PM CDT (19:43 UTC)
Expired: May 23, 2007, 3:45 PM CDT
In force: 62 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Blue Earth County, MN, Faribault County, MN

The radar

The Minneapolis radar (KMPX), 127 km from the middle of the area, began a volume at 19:46 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.7 hours before the alert went out and 126 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: 84 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 811 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 164 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 231943
SVRMPX
MNC013-043-232045-
/O.NEW.KMPX.SV.W.0031.070523T1943Z-070523T2045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
243 PM CDT WED MAY 23 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 345 PM CDT

* AT 242 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL.DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 3 MILES NORTHWEST OF MINNESOTA LAKE TO 3 MILES SOUTHWEST OF
  BLUE EARTH...AND MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAPLETON...
  MINNESOTA LAKE...

LAT...LON 4358 9424 4355 9404 4376 9383 4400 9377
      4404 9396

$$

MB

1 follow-up statement

000 
WWUS53 KMPX 232016
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
316 PM CDT WED MAY 23 2007

MNC013-043-232045-
/O.CON.KMPX.SV.W.0031.000000T0000Z-070523T2045Z/
BLUE EARTH MN-FARIBAULT MN-
316 PM CDT WED MAY 23 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR FARIBAULT AND BLUE EARTH COUNTIES...

AT 311 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE 
THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS 
IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE 
EXTENDING FROM 13 MILES NORTHEAST OF MINNESOTA LAKE TO 3 MILES 
SOUTHWEST OF EASTON...AND MOVING NORTHEAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE MINNESOTA LAKE...MAPLETON...
EASTON...DELAVAN AND BLUE EARTH.

LAT...LON 4359 9418 4354 9399 4376 9383 4400 9377
      4404 9396

$$

MB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 2:06 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin	39 min
May 23, 2:25 PM CDT	Tornado Warning	MPX	Anoka, Hennepin	35 min
May 23, 2:39 PM CDT	Severe Thunderstorm Warning	MPX	Ramsey, Washington	51 min
May 23, 3:12 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	46 min
May 23, 3:18 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	42 min
May 23, 3:22 PM CDT	Severe Thunderstorm Warning	MPX	Chisago	53 min
May 23, 3:29 PM CDT	Severe Thunderstorm Warning	MPX	Ramsey, Washington	61 min
May 23, 3:42 PM CDT	Severe Thunderstorm Warning	MPX	Rice	46 min
May 23, 4:07 PM CDT	Tornado Warning	MPX	Goodhue	53 min
May 23, 4:18 PM CDT	Tornado Warning	MPX	Dakota	20 min
May 23, 5:01 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	44 min
May 23, 6:49 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	41 min
May 23, 6:57 PM CDT	Flash Flood Warning	MPX	Faribault, Freeborn	3 hr

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.