Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 236, NWS Twin Cities, MN

July 23, 2005Isanti County, Kanabec County, Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 23, 2005, 10:06 AM CDT for Isanti County, Kanabec County, Mille Lacs County, Minnesota. It was in force for 54 min. 1 report 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: Jul 23, 2005, 10:06 AM CDT (15:06 UTC)
Expired: Jul 23, 2005, 11:00 AM CDT
In force: 54 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 15:09 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	Remark
Jul 23, 10:35 AM CDT	TSTM WND DMG	Cambridge, MN	TRAILER BLOWN INTO STREET

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, 3.1 hours before the alert went out and 89 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: 883 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1174 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 231507
SVRMPX
MNC059-065-095-231600-
/O.NEW.KMPX.SV.W.0236.050723T1506Z-050723T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1006 AM CDT SAT JUL 23 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA
  KANABEC COUNTY IN EAST CENTRAL MINNESOTA
  ISANTI COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 1100 AM CDT

* AT 1004 AM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 11 MILES
  WEST OF MILACA TO 24 MILES SOUTH OF MILACA...AND MOVING EAST AT 55 
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  MILACA...
  CAMBRIDGE...
  MORA...
  PRINCETON...
  ISANTI...
  OGILVIE...

THIS IS A DANGEROUS STORM THAT HAS A HISTORY OF PRODUCING VERY 
DAMAGING WINDS. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR 
DAMAGING WINDS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4585 9376 4558 9375 4558 9351 4542 9350
      4543 9315 4584 9316

$$

KAT

2 follow-up statements

000 
WWUS53 KMPX 231546
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1044 AM CDT SAT JUL 23 2005

MNC065-095-231554-
/O.CAN.KMPX.SV.W.0236.000000T0000Z-050723T1600Z/
MILLE LACS MN-KANABEC MN-
1044 AM CDT SAT JUL 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR KANABEC AND MILLE LACS
COUNTIES IS CANCELLED...

THE STORMS THAT PROMPTED THE WARNING FOR KANABEC AND MILLE LACS 
COUNTIES HAS MOVED OUT OF THE WARNED COUNTIES. THEREFORE...THE 
WARNING HAS BEEN CANCELLED.

LAT...LON 4573 9347 4543 9347 4543 9315 4573 9316

$$

MNC059-231600-
/O.CON.KMPX.SV.W.0236.000000T0000Z-050723T1600Z/
ISANTI MN-
1044 AM CDT SAT JUL 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1100 AM CDT FOR
ISANTI COUNTY...

AT 1035 AM CDT...WIND DAMAGE WAS REPORTED IN CAMBRIDGE WITH THIS 
STORM. THIS IS A DANGEROUS STORM...SEEK SAFE SHELTER AND STAY AWAY 
FROM WINDOWS

AT 1043 AM CDT...THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM GRANDY TO 19 MILES SOUTHEAST OF ATHENS...MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STANCHFIELD...DALBO...BODUM...
ST FRANCIS...ISANTI...CAMBRIDGE AND BRAHAM.

LAT...LON 4573 9347 4543 9347 4543 9315 4573 9316

$$

KAT

000 
WWUS53 KMPX 231556
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1056 AM CDT SAT JUL 23 2005

MNC059-231606-
/O.EXP.KMPX.SV.W.0236.000000T0000Z-050723T1600Z/
ISANTI MN-
1056 AM CDT SAT JUL 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR ISANTI COUNTY WILL EXPIRE AT
1100 AM CDT...

THE STORMS THAT PROMPTED THE SEVERE THUNDERSTORM WARNING FOR ISANTI 
COUNTY HAS MOVED EAST OF THE AREA. THEREFORE...THE WARNING WILL BE 
ALLOWED TO EXPIRE.

LAT...LON 4573 9347 4543 9347 4543 9315 4573 9316

$$

KAT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 3:33 AM CDT	Heat Advisory	MPX	Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 30 more	15 hr
Jul 23, 7:59 AM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	46 min
Jul 23, 8:22 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	53 min
Jul 23, 8:45 AM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	60 min
Jul 23, 8:54 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Stearns, Todd	66 min
Jul 23, 9:13 AM CDT	Severe Thunderstorm Warning	MPX	Pope	47 min
Jul 23, 9:29 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	61 min
Jul 23, 9:41 AM CDT	Severe Thunderstorm Warning	MPX	Benton, Sherburne	64 min
Jul 23, 9:46 AM CDT	Severe Thunderstorm Warning	MPX	Wright	59 min
Jul 23, 10:12 AM CDT	Severe Thunderstorm Warning	MPX	Hennepin	63 min
Jul 23, 10:19 AM CDT	Severe Thunderstorm Warning	MPX	Anoka	56 min
Jul 23, 10:39 AM CDT	Severe Thunderstorm Warning	MPX	Chisago, Ramsey, Washington	53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005 Every severe thunderstorm warning in 2005

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.