Alert archive / Minnesota / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 177, NWS Twin Cities, MN

June 30, 2004Anoka County, Ramsey County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 2004, 4:30 PM CDT for Anoka County, Ramsey County, Minnesota. It was in force for 45 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
Jun 30, 2004, 4:30 PM CDT (21:30 UTC)
Expired
Jun 30, 2004, 5:15 PM CDT
In force
45 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Anoka County, MN, Ramsey County, MN

The radar

The Minneapolis radar (KMPX), 44 km from the middle of the area, began a volume at 21:31 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.

What was reported inside it

TimeReportWhereRemark
Jun 30, 4:35 PM CDTTSTM WND DMGArden Hills, MNLARGE TREE BRANCHES DOWN NEAR 694 AND 35W.
Jun 30, 4:35 PM CDTTSTM WND DMGFridley, MNLARGE TREE LIMBS DOWN ACROSS POWER LINES NEAR MOORE LAKE.
Jun 30, 4:50 PM CDTHAIL 0.75Vadnais Heights, MN

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, 9.5 hours before the alert went out and 46 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 2004-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1785 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
15 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.

989 
WUUS53 KMPX 302130
SVRMPX
MNC003-123-302215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
428 PM CDT WED JUN 30 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 515 PM CDT

* AT 427 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 8 MILES
  SOUTHWEST OF BLAINE...OR ABOUT 7 MILES NORTH OF MINNEAPOLIS...AND
  MOVING EAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BLAINE.
  CIRCLE PINES.
  LINO LAKES.
  MOUNDS VIEW.
  NORTH OAKS.
  NEW BRIGHTON.

HAIL UP TO ONE INCH IN DIAMETER HAS BEEN REPORTED IN CRYSTAL AT 424 
PM WITH THIS STORM.

LAT...LON 4515 9330 4506 9327 4502 9299 4511 9301
      4524 9304

$$

BINAU

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 2:40 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Renville65 min
Jun 30, 3:21 PM CDTSevere Thunderstorm WarningMPXWright39 min
Jun 30, 3:33 PM CDTSevere Thunderstorm WarningMPXSibley57 min
Jun 30, 3:43 PM CDTSevere Thunderstorm WarningMPXHennepin62 min
Jun 30, 3:47 PM CDTSevere Thunderstorm WarningMPXMcLeod28 min
Jun 30, 4:58 PM CDTSevere Thunderstorm WarningMPXWashington47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2004Every severe thunderstorm warning in 2004

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.