Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Grand Forks, ND

June 12, 20164 counties in Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 12, 2016, 2:35 PM CDT for 4 counties in Minnesota. It was in force for 26 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 12, 2016, 2:35 PM CDT (19:35 UTC)
Expired
Jun 12, 2016, 3:01 PM CDT
In force
26 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

Counties Becker County, MN, Clay County, MN, Otter Tail County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 129 km from the middle of the area, began a volume at 19:38 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 12, 2:40 PM CDTTSTM WND DMG3 Ese Barnesville, MNSEVERAL 12 INCH DIAMETER POPLAR TREES AND AN 18 INCH DIAMETER COTTONWOOD TREE WERE SNAPPED IN FARM SHELTER BELTS NEAR THE WILKIN COUNTY LINE.
Jun 12, 2:41 PM CDTTSTM WND DMG4 N Lawndale, MNSEVERAL 12 INCH DIAMETER POPLAR TREES AND AN 18 INCH DIAMETER COTTONWOOD TREE WERE SNAPPED IN FARM SHELTER BELTS NEAR THE CLAY COUNTY LINE.

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 7.6 hours before the alert went out and 276 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 2016-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1002 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 square meters per square second.1939Sfc1 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
1002 J/kg
Mixed-layer CIN
-217 J/kg
Mixed-layer LCL
1892 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
209 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

530 
WUUS53 KFGF 121935
SVRFGF
MNC005-027-111-167-122030-
/O.NEW.KFGF.SV.W.0021.160612T1935Z-160612T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
235 PM CDT SUN JUN 12 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHWESTERN BECKER COUNTY IN NORTHWESTERN MINNESOTA...
  NORTHEASTERN WILKIN COUNTY IN WEST CENTRAL MINNESOTA...
  SOUTHEASTERN CLAY COUNTY IN NORTHWESTERN MINNESOTA...

* UNTIL 330 PM CDT

* AT 234 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  LAWNDALE...OR 26 MILES NORTHWEST OF FERGUS FALLS...MOVING
  NORTHEAST AT 45 MPH.

  HAZARD...HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  ROLLAG AROUND 245 PM CDT. 
  CORMORANT AROUND 255 PM CDT. 
  LAKE PARK AROUND 305 PM CDT. 
  DETROIT LAKES AROUND 310 PM CDT. 
  WESTBURY AROUND 315 PM CDT. 

ALSO INCLUDES INTERSTATE 94 IN MINNESOTA BETWEEN MILE MARKERS 22 AND
43.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND
LIGHTNING. SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE. STAY AWAY FROM
WINDOWS.

IF ON OR NEAR LAKE LIDA GET AWAY FROM THE WATER AND MOVE INDOORS OR
INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW! DO
NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.

&&

LAT...LON 4640 9626 4658 9655 4715 9599 4715 9587
      4689 9536
TIME...MOT...LOC 1934Z 221DEG 38KT 4661 9632 

HAIL...1.25IN
WIND...<50MPH
 
$$
SPEICHER
1 follow-up statement
725 
WWUS53 KFGF 122001
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
301 PM CDT SUN JUN 12 2016

MNC005-027-111-167-122011-
/O.CAN.KFGF.SV.W.0021.000000T0000Z-160612T2030Z/
OTTER TAIL MN-BECKER MN-WILKIN MN-CLAY MN-
301 PM CDT SUN JUN 12 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OTTER TAIL...
SOUTHWESTERN BECKER...NORTHEASTERN WILKIN AND SOUTHEASTERN CLAY
COUNTIES IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHWESTERN MINNESOTA.

LAT...LON 4640 9626 4658 9655 4715 9599 4715 9587
      4689 9536
TIME...MOT...LOC 2000Z 221DEG 38KT 4683 9605 

$$
SPEICHER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 9:52 AM CDTSpecial Weather StatementFGFBeltrami53 min
Jun 12, 11:05 AM CDTSpecial Weather StatementFGFKittson55 min
Jun 12, 2:32 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wilkin58 min
Jun 12, 3:19 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Otter Tail, Wilkin39 min
Jun 12, 3:23 PM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail, Wilkin67 min
Jun 12, 4:29 PM CDTSevere Thunderstorm WarningFGFGrant26 min
Jun 12, 5:30 PM CDTSevere Thunderstorm WarningFGFBeltrami30 min
Jun 12, 5:59 PM CDTSevere Thunderstorm WarningFGFGrant47 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016Every severe thunderstorm warning in 2016

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.