Alert archive / Minnesota / Special Weather Statements in 2011

Special Weather Statement, NWS Twin Cities, MN

May 23, 2011Blue Earth County, Brown County, Minnesota

NWS Twin Cities, MN issued this special weather statement at May 23, 2011, 4:47 PM CDT for Blue Earth County, Brown County, Minnesota. It was in force for 43 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 23, 2011, 4:47 PM CDT (21:47 UTC)
Expired
May 23, 2011, 5:30 PM CDT
In force
43 min
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN

The radar

The Minneapolis radar (KMPX), 98 km from the middle of the area, began a volume at 21:51 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, 9.8 hours before the alert went out and 97 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 2011-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2011-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
8 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
528 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
129 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.

605 
WWUS83 KMPX 232147
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
447 PM CDT MON MAY 23 2011

MNZ073>075-082-083-232230-
BLUE EARTH-BROWN-NICOLLET-REDWOOD-WATONWAN-
447 PM CDT MON MAY 23 2011

HAIL UP TO HALF INCH SIZE IS POSSIBLE FROM SCATTERED THUNDERSTORMS 
DEVELOPING NEAR THE MINNESOTA RIVER.  AT 445 PM THESE STORMS RAN 
FROM NEAR REDWOOD FALLS TO NEW ULM THEN TOWARD MANKATO. THEY WERE 
MOVING SOUTHEAST AT 15 TO 20 MPH. 

ONE HALF INCH DIAMETER HAIL IS EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  SLEEPY EYE.
  NEW ULM.
  HANSKA.

LAT...LON 4414 9393 4386 9416 4426 9509 4444 9469
TIME...MOT...LOC 2144Z 326DEG 14KT 4429 9473

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 11:22 AM CDTRiver Flood WatchMPXDakota, Hennepin, Scott71 hr

Nearby

Special Weather Statements in Minnesota, 2011Every special weather statement in 2011

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.