Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 238, NWS Twin Cities, MN

July 23, 2005Anoka County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 23, 2005, 10:19 AM CDT for Anoka County, Minnesota. It was in force for 56 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
Jul 23, 2005, 10:19 AM CDT (15:19 UTC)
Expired
Jul 23, 2005, 11:15 AM CDT
In force
56 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Anoka County, MN

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 15:22 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
Jul 23, 10:30 AM CDTTSTM WND DMGAndover, MN5 TO 7 INCH TREES DOWN
Jul 23, 10:30 AM CDTTSTM WND DMGCenterville, MNHAM RADIO TOWER DOWN
Jul 23, 10:45 AM CDTTSTM WND DMGCenterville, MNHAM RADIO TOWER DOWN

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
Jul 23, 7:15 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 3.3 hours before the alert went out and 58 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 2005-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 883 joules per kilogram.LCLLFCEL10008507005003002001001 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 2005-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
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 231519
SVRMPX
MNC003-231615-
/O.NEW.KMPX.SV.W.0238.050723T1519Z-050723T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1019 AM CDT SAT JUL 23 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANOKA COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 1115 AM CDT

* AT 1017 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 18 MILES
  NORTHWEST OF EAST BETHEL TO 16 MILES SOUTHWEST OF EAST BETHEL...AND
  MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EAST BETHEL...
  ST FRANCIS...
  OAK GROVE...
  LINWOOD TOWNSHIP...

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...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND 
LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY 
INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4542 9348 4524 9350 4515 9305 4541 9304

$$

KAT
2 follow-up statements
000 
WWUS53 KMPX 231536
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1035 AM CDT SAT JUL 23 2005

MNC003-231615-
/O.CON.KMPX.SV.W.0238.000000T0000Z-050723T1615Z/
ANOKA MN-
1035 AM CDT SAT JUL 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1115 AM CDT FOR
ANOKA COUNTY...

AT 1034 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE
THUNDERSTORMS...CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESESTORMS WERE LOCATED ALONG A LINE EXTENDING FROM EAST BETHEL
TO 8 MILES SOUTH OF HAM LAKE...MOVING EAST AT 50 MPH. THE STRONGEST 
WINDS WILL AFFECT LOCATIONS FROM ANDOVER TO HAM LAKE...CEDAR...AND 
EAST BETHEL.

OTHER LOCATIONS IN THE WARNING INCLUDE CEDAR...RAMSEY...
CENTERVILLE...BETHEL AND ANDOVER.

LAT...LON 4542 9348 4524 9350 4515 9305 4541 9304

$$

KAT
000 
WWUS53 KMPX 231613
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1112 AM CDT SAT JUL 23 2005

MNC003-231622-
/O.EXP.KMPX.SV.W.0238.000000T0000Z-050723T1615Z/
ANOKA MN-
1112 AM CDT SAT JUL 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR ANOKA COUNTY WILL EXPIRE AT
1115 AM CDT...

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

LAT...LON 4542 9348 4524 9350 4515 9305 4541 9304

$$

KAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 3:33 AM CDTHeat AdvisoryMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 30 more15 hr
Jul 23, 7:59 AM CDTSevere Thunderstorm WarningMPXStevens, Swift46 min
Jul 23, 8:22 AM CDTSevere Thunderstorm WarningMPXDouglas, Pope53 min
Jul 23, 8:45 AM CDTSevere Thunderstorm WarningMPXStevens, Swift60 min
Jul 23, 8:54 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns, Todd66 min
Jul 23, 9:13 AM CDTSevere Thunderstorm WarningMPXPope47 min
Jul 23, 9:29 AM CDTSevere Thunderstorm WarningMPXMeeker61 min
Jul 23, 9:41 AM CDTSevere Thunderstorm WarningMPXBenton, Sherburne64 min
Jul 23, 9:46 AM CDTSevere Thunderstorm WarningMPXWright59 min
Jul 23, 10:06 AM CDTSevere Thunderstorm WarningMPXIsanti, Kanabec, Mille Lacs54 min
Jul 23, 10:12 AM CDTSevere Thunderstorm WarningMPXHennepin63 min
Jul 23, 10:39 AM CDTSevere Thunderstorm WarningMPXChisago, Ramsey, Washington53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005Every 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.