Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 112, NWS Twin Cities, MN

September 3, 2014Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 3, 2014, 3:14 PM CDT for Morrison County, Minnesota. It was in force for 31 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Sep 3, 2014, 3:14 PM CDT (20:14 UTC)
Expired: Sep 3, 2014, 3:45 PM CDT
In force: 31 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Morrison County, MN

The radar

The Minneapolis radar (KMPX), 132 km from the middle of the area, began a volume at 20:17 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.

What was reported inside it

Time	Report	Where	Remark
Sep 3, 3:30 PM CDT	HAIL 1	2 Nw Pierz, MN	REPORTED BY DEPUTY SHERIFF.
Sep 3, 3:32 PM CDT	HAIL 1	Pierz, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.2 hours before the alert went out and 131 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: 1649 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 11 m²/s²
0-3 km storm-relative helicity: 67 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.

879 
WUUS53 KMPX 032014
SVRMPX
MNC097-032045-
/O.NEW.KMPX.SV.W.0112.140903T2014Z-140903T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
314 PM CDT WED SEP 3 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 345 PM CDT

* AT 313 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES EAST OF
  LITTLE FALLS...AND MOVING EAST AT 60 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  GENOLA...PIERZ...LASTRUP AND HILLMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4598 9381 4598 9377 4596 9377 4594 9423
      4604 9424 4616 9381
TIME...MOT...LOC 2014Z 252DEG 51KT 4597 9424

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

$$

1 follow-up statement

331 
WWUS53 KMPX 032032
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
332 PM CDT WED SEP 3 2014

MNC097-032045-
/O.CON.KMPX.SV.W.0112.000000T0000Z-140903T2045Z/
MORRISON MN-
332 PM CDT WED SEP 3 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MORRISON COUNTY UNTIL 345 PM CDT...

AT 330 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 16 MILES EAST OF
LITTLE FALLS...AND MOVING EAST AT 50 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
HILLMAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS!

&&

LAT...LON 4599 9414 4602 9420 4604 9418 4614 9381
      4598 9381 4598 9377 4596 9377 4595 9412
TIME...MOT...LOC 2032Z 262DEG 42KT 4600 9400

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

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 3, 5:03 AM CDT	Special Weather Statement	MPX	Chippewa	42 min
Sep 3, 6:42 AM CDT	Special Weather Statement	MPX	Chippewa	2 hr
Sep 3, 6:44 AM CDT	Special Weather Statement	MPX	Swift	2 hr
Sep 3, 8:15 AM CDT	Special Weather Statement	MPX	Kandiyohi	2 hr
Sep 3, 8:41 AM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, McLeod, Meeker, Renville	49 min
Sep 3, 9:06 AM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville, Sibley	39 min
Sep 3, 9:42 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod, Sibley	23 min
Sep 3, 10:04 AM CDT	Special Weather Statement	MPX	McLeod	26 min
Sep 3, 10:15 AM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod	24 min
Sep 3, 10:54 AM CDT	Special Weather Statement	MPX	Wright	51 min
Sep 3, 11:15 AM CDT	Severe Thunderstorm Warning	MPX	Wright	30 min
Sep 3, 11:54 AM CDT	Special Weather Statement	MPX	Stevens	36 min
Sep 3, 12:13 PM CDT	Special Weather Statement	MPX	Benton	47 min
Sep 3, 12:16 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stevens	44 min
Sep 3, 12:25 PM CDT	Special Weather Statement	MPX	Todd	35 min
Sep 3, 12:49 PM CDT	Special Weather Statement	MPX	Sherburne	41 min
Sep 3, 12:55 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	50 min
Sep 3, 1:34 PM CDT	Flash Flood Warning	MPX	Pope	3 hr
Sep 3, 1:40 PM CDT	Severe Thunderstorm Warning	MPX	Pope, Stearns	35 min
Sep 3, 2:04 PM CDT	Special Weather Statement	MPX	Todd	41 min
Sep 3, 2:46 PM CDT	Severe Thunderstorm Warning	MPX	Morrison, Todd	44 min
Sep 3, 3:27 PM CDT	Special Weather Statement	MPX	Todd	48 min
Sep 3, 3:40 PM CDT	Special Weather Statement	MPX	Kanabec	50 min
Sep 3, 4:00 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	30 min
Sep 3, 4:13 PM CDT	Special Weather Statement	MPX	Morrison	47 min
Sep 3, 4:22 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Morrison	53 min
Sep 3, 4:34 PM CDT	Special Weather Statement	MPX	Morrison	41 min
Sep 3, 5:02 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	43 min
Sep 3, 5:28 PM CDT	Special Weather Statement	MPX	Todd	3 hr
Sep 3, 5:55 PM CDT	Flash Flood Warning	MPX	Morrison	3 hr
Sep 3, 5:59 PM CDT	Special Weather Statement	MPX	Mille Lacs, Morrison	3 hr
Sep 3, 6:54 PM CDT	Special Weather Statement	MPX	Mille Lacs	51 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.