Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 2, NWS Twin Cities, MN

March 31, 2014McLeod County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 31, 2014, 5:55 PM CDT for McLeod County, Minnesota. It was in force for 20 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, 5:55 PM CDT (22:55 UTC)
Expired: Mar 31, 2014, 6:15 PM CDT
In force: 20 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County McLeod County, MN

The radar

The Minneapolis radar (KMPX), 42 km from the middle of the area, began a volume at 22:54 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, 10.9 hours before the alert went out and 39 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

479 
WUUS53 KMPX 312255
SVRMPX
MNC085-312315-
/O.NEW.KMPX.SV.W.0002.140331T2255Z-140331T2315Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL MCLEOD COUNTY IN CENTRAL MINNESOTA...

* UNTIL 615 PM CDT

* AT 554 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR GLENCOE...
  AND MOVING NORTH AT 40 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF EAST
  CENTRAL MCLEOD COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4489 9413 4486 9401 4475 9402 4471 9403
      4471 9416 4472 9416
TIME...MOT...LOC 2255Z 196DEG 36KT 4474 9410

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

$$

CLF

1 follow-up statement

062 
WWUS53 KMPX 312314
SVSMPX

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

MNC085-312322-
/O.EXP.KMPX.SV.W.0002.000000T0000Z-140331T2315Z/
MCLEOD MN-
614 PM CDT MON MAR 31 2014

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MCLEOD COUNTY
WILL EXPIRE AT 615 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER...SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4489 9413 4486 9401 4475 9402 4471 9403
      4471 9416 4472 9416
TIME...MOT...LOC 2312Z 196DEG 36KT 4490 9403

$$

CLF

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 4:06 AM CDT	Blizzard Warning	MPX	Chippewa, Douglas, Lac qui Parle, Pope, Stevens, Swift and 1 more	9 hr
Mar 31, 4:06 AM CDT	Winter Weather Advisory	MPX	Chippewa, Douglas, Kandiyohi, Lac qui Parle, Meeker, Morrison and 6 more	27 hr
Mar 31, 4:17 AM CDT	Wind Advisory	MPX	Blue Earth, Brown, Faribault, Freeborn, Le Sueur, McLeod and 10 more	29 hr
Mar 31, 3:49 PM CDT	Special Weather Statement	MPX	Yellow Medicine	26 min
Mar 31, 4:13 PM CDT	Tornado Warning Tornado observed	MPX	Yellow Medicine	17 min
Mar 31, 4:25 PM CDT	Tornado Warning Tornado observed	MPX	Lac qui Parle	20 min
Mar 31, 4:48 PM CDT	Special Weather Statement	MPX	Chippewa	27 min
Mar 31, 4:58 PM CDT	Tornado Warning	MPX	Chippewa, Lac qui Parle	17 min
Mar 31, 5:22 PM CDT	Special Weather Statement	MPX	Kandiyohi	23 min
Mar 31, 5:36 PM CDT	Special Weather Statement	MPX	Sibley	24 min
Mar 31, 5:39 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	21 min
Mar 31, 6:06 PM CDT	Special Weather Statement	MPX	Steele	39 min
Mar 31, 6:24 PM CDT	Special Weather Statement	MPX	Meeker	36 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014 Every 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.