Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 15, NWS Twin Cities, MN

April 17, 2005Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 17, 2005, 5:02 PM CDT for Freeborn 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
Apr 17, 2005, 5:02 PM CDT (22:02 UTC)
Expired
Apr 17, 2005, 6:00 PM CDT
In force
58 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 22:03 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, 10.0 hours before the alert went out and 138 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 2005-04-17Temperature 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 2005-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
960 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
102 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 172202
SVRMPX
MNC047-172300-
/O.NEW.KMPX.SV.W.0015.050417T2202Z-050417T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
502 PM CDT SUN APR 17 2005

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 600 PM CDT

* AT 502 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. THIS STORM WAS
  LOCATED NEAR ALBERT LEA...OR ABOUT OVER ALBERT LEA...AND MOVING
  EAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ALBERT LEA...

LAT...LON 4367 9358 4350 9354 4351 9304 4375 9305

$$
2 follow-up statements
000 
WWUS53 KMPX 172217
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
516 PM CDT SUN APR 17 2005

MNC047-172300-
/O.CON.KMPX.SV.W.0015.000000T0000Z-050417T2300Z/
FREEBORN MN-
516 PM CDT SUN APR 17 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 600 PM CDT FOR
FREEBORN COUNTY...

AT 510 PM CDT...A HAM OPERATOR REPORTED DIME SIZE HAIL IN ALBERT 
LEA. 

OTHER LOCATIONS IN THE WARNING INCLUDE LONDON...TWIN LAKES...
MYRTLE...HAYWARD...GLENVILLE AND CONGER.

LAT...LON 4367 9358 4350 9354 4351 9304 4375 9305

$$
000 
WWUS53 KMPX 172256
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
552 PM CDT SUN APR 17 2005

MNC047-172302-
/O.CAN.KMPX.SV.W.0015.000000T0000Z-050417T2315Z/
FREEBORN MN-
552 PM CDT SUN APR 17 2005

...THE SEVERE THUNDERSTORM WARNING FOR FREEBORN COUNTY IS 
CANCELLED...

RADAR INDICATED THAT THE STORM HAD WEAKENED TO BELOW SEVERE LIMITS. 
THUS THE WARNING HAS BEEN CANCELLED.  THE STORM CONTINUE TO PRODUCE 
HEAVY RAINS WHICH COULD CAUSE SOME URBAN AND STREET 
FLOODING...ESPECIALLY IN LOW LYING AREAS IN THE TOWNS OF ALBERT LEA 
AND ADJACENT NEARBY COMMUNITIES. 

LAT...LON 4367 9358 4350 9354 4351 9304 4375 9305

$$

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.