Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 30, NWS Grand Forks, ND

June 17, 2012Otter Tail County, Wilkin County, Minnesota; Richland County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 17, 2012, 6:08 PM CDT for Otter Tail County, Wilkin County, Minnesota; Richland County, North Dakota. It was in force for 67 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
Jun 17, 2012, 6:08 PM CDT (23:08 UTC)
Expired
Jun 17, 2012, 7:15 PM CDT
In force
67 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Otter Tail County, MN, Wilkin County, MN, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 167 km from the middle of the area, began a volume at 23:08 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

TimeReportWhereRemark
Jun 17, 6:17 PM CDTHAIL 11 Sw Foxhome, MNQUARTER SIZED HAIL FOR ABOUT 5 MINUTES
Jun 17, 6:55 PM CDTHAIL 0.88Breckenridge, MNREPORT RECEIVED VIA FACEBOOK.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 17, 3:45 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.1 hours before the alert went out and 211 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, Aberdeen, SD at 12:00Z on 2012-06-17Temperature 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, Aberdeen, SD at 12:00Z on 2012-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 301 square meters per square second.19395878Sfc1 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
2160 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
301 m²/s²
0-3 km storm-relative helicity
545 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.

512 
WUUS53 KFGF 172308
SVRFGF
MNC111-167-NDC077-180015-
/O.NEW.KFGF.SV.W.0030.120617T2308Z-120618T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
608 PM CDT SUN JUN 17 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
  WILKIN COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHEASTERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 715 PM CDT

* AT 603 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED 3 MILES
  SOUTHWEST OF EVERDELL...OR 8 MILES EAST OF WAHPETON...MOVING TO THE
  NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FOXHOME AROUND 620 PM CDT.
  WESTERN AROUND 625 PM CDT.
  ROTHSAY AND CARLISLE AROUND 640 PM CDT.
  FERGUS FALLS AND ELIZABETH AROUND 645 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE ERHARD...PELICAN RAPIDS AND PHELPS.

FOR MOTORISTS ON INTERSTATE 94...THE SEVERE THUNDERSTORM WILL BE
BETWEEN...MILE MARKERS 40 AND 58 AROUND 640 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. IF A TORNADO IS SPOTTED...
MOVE QUICKLY TO A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4630 9688 4667 9598 4638 9569 4611 9622
      4611 9626 4608 9626 4601 9639 4602 9656
      4594 9656 4593 9660
TIME...MOT...LOC 2308Z 240DEG 22KT 4625 9642
WIND...HAIL 60MPH 1.00IN

$$

TG/BB
2 follow-up statements
274 
WWUS53 KFGF 172323
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
623 PM CDT SUN JUN 17 2012

MNC111-167-NDC077-180015-
/O.CON.KFGF.SV.W.0030.000000T0000Z-120618T0015Z/
RICHLAND ND-OTTER TAIL MN-WILKIN MN-
623 PM CDT SUN JUN 17 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WILKIN AND
WESTERN OTTER TAIL COUNTIES IN WEST CENTRAL MINNESOTA...AND
SOUTHEASTERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA UNTIL 715 PM
CDT...

AT 621 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORM WAS LOCATED 4 MILES
SOUTHEAST OF FOXHOME...OR 9 MILES WEST OF FERGUS FALLS...MOVING TO
THE EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  CARLISLE AROUND 630 PM CDT.
  FERGUS FALLS AND ELIZABETH AROUND 640 PM CDT.
  ERHARD AROUND 645 PM CDT.
  PELICAN RAPIDS AROUND 650 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE EDWARDS...UNDERWOOD...MAPLEWOOD STATE PARK...LAKE LIDA...
PHELPS AND AMOR.

FOR MOTORISTS ON INTERSTATE 94...THE SEVERE THUNDERSTORM WILL BE
BETWEEN...MILE MARKER 53 AROUND 635 PM CDT...AND MILE MARKER 59
AROUND 640 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. IF A TORNADO IS SPOTTED
ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 4630 9688 4667 9598 4638 9569 4611 9622
      4611 9626 4608 9626 4601 9639 4602 9656
      4594 9656 4593 9660
TIME...MOT...LOC 2323Z 253DEG 24KT 4624 9622

$$

TG/BB
607 
WWUS53 KFGF 180015
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
715 PM CDT SUN JUN 17 2012

MNC111-167-NDC077-180025-
/O.EXP.KFGF.SV.W.0030.000000T0000Z-120618T0015Z/
RICHLAND ND-OTTER TAIL MN-WILKIN MN-
715 PM CDT SUN JUN 17 2012

...THE SEVERE THUNDERSTORM WARNING FOR WILKIN AND WESTERN OTTER TAIL
COUNTIES IN WEST CENTRAL MINNESOTA...AND SOUTHEASTERN RICHLAND COUNTY
IN SOUTHEAST NORTH DAKOTA HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 4630 9688 4667 9598 4638 9569 4611 9622
      4611 9626 4608 9626 4601 9639 4602 9656
      4594 9656 4593 9660
TIME...MOT...LOC 0015Z 253DEG 24KT 4634 9574

$$

TG/BB

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 6:02 PM CDTSpecial Weather StatementFGFWilkin58 min
Jun 17, 6:16 PM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail, Wilkin59 min
Jun 17, 6:31 PM CDTSevere Thunderstorm WarningFGFWilkin44 min
Jun 17, 6:41 PM CDTTornado WarningFGFGrant49 min
Jun 17, 5:37 PM CDTSevere Thunderstorm WarningFGFRichland, Sargent53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Severe Thunderstorm Warnings in North Dakota, 2012Every severe thunderstorm warning in 2012

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.