Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 63, NWS Twin Cities, MN

July 3, 2003Anoka County, Hennepin County, Sherburne County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 3, 2003, 12:32 AM CDT for Anoka County, Hennepin County, Sherburne County, Minnesota. It was in force for 58 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, 2003, 12:32 AM CDT (05:32 UTC)
Expired
Jul 3, 2003, 1:30 AM CDT
In force
58 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Anoka County, MN, Hennepin County, MN, Sherburne County, MN

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 05:31 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.

IssuedProductOfficeLasted
Jul 2, 7:25 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.5 hours before the alert went out and 57 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 00:00Z on 2003-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1209 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 00:00Z on 2003-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 square meters per square second.1939Sfc1 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
1209 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
1701 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

314 
WUUS53 KMPX 030532
SVRMPX
MNC003-053-141-030630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1230 AM CDT THU JUL 3 2003

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 130 AM CDT

* AT 1230 AM CDT...RADAR INDICATED A LINE OF SEVERE STORMS WITH
  DAMAGING WINDS...EXTENDING FROM ZIMMERMAN TO JUST NORTH OF ELK
  RIVER...TO JUST NORTH OF BUFFALO.  THE STORMS WERE MOVING 
  SOUTHEAST AT 35 MPH. EXPECT WINDS AROUND 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ST FRANCIS.
  ANOKA.
  ELK RIVER.
  MAPLE GROVE.
  GREENFIELD.

THIS IS A DANGEROUS STORM WITH DAMAGING WINDS...STAY INDOORS AWAY
FROM WINDOWS.

LAT...LON 4554 9380 4540 9380 4527 9351 4502 9349
          4538 9307 4538 9348

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 10:14 PM CDTSevere Thunderstorm WarningMPXDouglas, Todd61 min
Jul 2, 10:40 PM CDTTornado WarningMPXMorrison, Todd35 min
Jul 2, 10:48 PM CDTTornado WarningMPXDouglas, Pope42 min
Jul 2, 11:11 PM CDTSevere Thunderstorm WarningMPXStevens49 min
Jul 2, 11:20 PM CDTSevere Thunderstorm WarningMPXBenton, Morrison, Stearns, Todd55 min
Jul 2, 11:33 PM CDTSevere Thunderstorm WarningMPXPope42 min
Jul 2, 11:47 PM CDTSevere Thunderstorm WarningMPXSherburne43 min
Jul 3, 12:23 AM CDTSevere Thunderstorm WarningMPXWright37 min
Jul 3, 12:35 AM CDTSevere Thunderstorm WarningMPXIsanti40 min
Jul 3, 12:41 AM CDTSevere Thunderstorm WarningMPXChisago49 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003Every severe thunderstorm warning in 2003

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.