Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 1, NWS Twin Cities, MN

March 31, 2014Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 31, 2014, 5:39 PM CDT for Sibley County, Minnesota. It was in force for 21 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
Mar 31, 2014, 5:39 PM CDT (22:39 UTC)
Expired
Mar 31, 2014, 6:00 PM CDT
In force
21 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Sibley County, MN

The radar

The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 22:40 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, 10.7 hours before the alert went out and 51 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 2014-03-31Temperature 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 2014-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.1939587897Sfc1 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
1860 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
335 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.

759 
WUUS53 KMPX 312239
SVRMPX
MNC143-312300-
/O.NEW.KMPX.SV.W.0001.140331T2239Z-140331T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
539 PM CDT MON MAR 31 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL SIBLEY COUNTY IN CENTRAL MINNESOTA...

* UNTIL 600 PM CDT

* AT 536 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GAYLORD...
  AND MOVING NORTH AT 45 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  ARLINGTON AND NEW AUBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4472 9425 4471 9404 4451 9410 4452 9425
TIME...MOT...LOC 2239Z 193DEG 37KT 4456 9417

HAIL...1.00IN
WIND...<50MPH

$$
1 follow-up statement
500 
WWUS53 KMPX 312243
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
543 PM CDT MON MAR 31 2014

MNC143-312300-
/O.CON.KMPX.SV.W.0001.000000T0000Z-140331T2300Z/
SIBLEY MN-
543 PM CDT MON MAR 31 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL SIBLEY
COUNTY UNTIL 600 PM CDT...

AT 540 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GAYLORD...AND
MOVING NORTH AT 40 MPH.

HAZARD...HALF DOLLAR SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
ARLINGTON AND NEW AUBURN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4472 9425 4471 9404 4451 9410 4452 9425
TIME...MOT...LOC 2243Z 193DEG 37KT 4460 9416

HAIL...1.25IN
WIND...<50MPH

$$

CLF

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 4:06 AM CDTBlizzard WarningMPXChippewa, Douglas, Lac qui Parle, Pope, Stevens, Swift and 1 more9 hr
Mar 31, 4:06 AM CDTWinter Weather AdvisoryMPXChippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker, Morrison and 6 more27 hr
Mar 31, 4:17 AM CDTWind AdvisoryMPXBlue Earth, Brown, Faribault, Freeborn, Le Sueur, McLeod and 10 more29 hr
Mar 31, 3:49 PM CDTSpecial Weather StatementMPXYellow Medicine26 min
Mar 31, 4:13 PM CDTTornado Warning Tornado observedMPXYellow Medicine17 min
Mar 31, 4:25 PM CDTTornado Warning Tornado observedMPXLac qui Parle20 min
Mar 31, 4:48 PM CDTSpecial Weather StatementMPXChippewa27 min
Mar 31, 4:58 PM CDTTornado WarningMPXChippewa, Lac qui Parle17 min
Mar 31, 5:22 PM CDTSpecial Weather StatementMPXKandiyohi23 min
Mar 31, 5:36 PM CDTSpecial Weather StatementMPXSibley24 min
Mar 31, 5:55 PM CDTSevere Thunderstorm WarningMPXMcLeod20 min
Mar 31, 6:06 PM CDTSpecial Weather StatementMPXSteele39 min
Mar 31, 6:24 PM CDTSpecial Weather StatementMPXMeeker36 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014Every severe thunderstorm warning in 2014

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.