Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 21, NWS Twin Cities, MN

May 5, 2005Brown County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2005, 6:33 PM CDT for Brown County, Minnesota. It was in force for 57 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 5, 2005, 6:33 PM CDT (23:33 UTC)
Expired
May 5, 2005, 7:30 PM CDT
In force
57 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Brown County, MN

The radar

The Minneapolis radar (KMPX), 109 km from the middle of the area, began a volume at 23:35 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, 11.6 hours before the alert went out and 107 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 2005-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2005-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.19395878Sfc1 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
1732 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
115 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 052334
SVRMPX
MNC015-060030-
/O.NEW.KMPX.SV.W.0021.050505T2333Z-050506T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
633 PM CDT THU MAY 5 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BROWN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 730 PM CDT

* AT 630 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL. THIS STORM WAS LOCATED 8 MILES
  NORTHWEST OF SLEEPY EYE...OR ABOUT 17 MILES SOUTHEAST OF REDWOOD
  FALLS...AND MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EVAN...
  SLEEPY EYE...
  NEW ULM...

LAT...LON 4448 9485 4428 9486 4412 9487 4411 9438
      4425 9438

$$
2 follow-up statements
000 
WWUS53 KMPX 052357
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
654 PM CDT THU MAY 5 2005

MNC015-060030-
/O.CON.KMPX.SV.W.0021.000000T0000Z-050506T0030Z/
BROWN MN-
654 PM CDT THU MAY 5 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 730 PM CDT FOR BROWN
COUNTY...

AT 652 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM...CAPABLE OF PRODUCING LARGE HAIL...AND THIS STORM WAS
LOCATED NEAR SLEEPY EYE...OR ABOUT 10 MILES WEST OF NEW ULM...MOVING 
SOUTHEAST AT 15 MPH TOWARD SEARLES AND HANSKA. 

LAT...LON 4448 9485 4428 9486 4412 9487 4411 9438
      4425 9438

$$
000 
WWUS53 KMPX 060028
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
727 PM CDT THU MAY 5 2005

MNC015-060030-
/O.CON.KMPX.SV.W.0021.000000T0000Z-050506T0030Z/
BROWN MN-
727 PM CDT THU MAY 5 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 730 PM CDT FOR BROWN
COUNTY...

AT 726 PM...DOPPLER RADAR INDICATED A WEAKENING THUNDERSTORM 8 MILES 
NORTHWEST OF HANSKA...OR ABOUT 7 MILES SOUTHWEST OF NEW ULM...MOVING 
SOUTHEAST AT 15 MPH. THE THUNDERSTORM WARNING FOR BROWN COUNTY WILL 
BE ALLOWED TO EXPIRE AT 730 PM.

LAT...LON 4448 9485 4428 9486 4412 9487 4411 9438
      4425 9438

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 3:32 PM CDTSevere Thunderstorm WarningMPXRenville33 min
May 5, 4:32 PM CDTSevere Thunderstorm WarningMPXRenville43 min
May 5, 5:47 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Renville, Sibley43 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.