Alert archive / North Dakota / Tornado Warnings in 2015

Tornado Warning 15, NWS Grand Forks, ND

June 27, 2015Cavalier County, Pembina County, Walsh County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 27, 2015, 3:34 PM CDT for Cavalier County, Pembina County, Walsh County, North Dakota. It was in force for 41 min. 15 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 27, 2015, 3:34 PM CDT (20:34 UTC)
Expired
Jun 27, 2015, 4:15 PM CDT
In force
41 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.5 in

Counties Cavalier County, ND, Pembina County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 143 km from the middle of the area, began a volume at 20:36 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 27, 3:42 PM CDTHAIL 1Walhalla, ND
Jun 27, 3:42 PM CDTHAIL 1.25Walhalla, NDQUARTER TO HALF DOLLAR SIZED HAIL FELL FOR SEVERAL MINUTES.
Jun 27, 3:55 PM CDTTORNADO 02 E Osnabrock, NDA ROPE TORNADO TOUCHED FOR LESS THAN A MINUTE IN OPEN FIELDS EAST OF TOWN. PEAK WINDS ESTIMATED TO 70 MPH. PEAK WIDTH ESTIMATED TO 20 YARDS. TRACK LENGTH TO ONE QUARTER MILE.
Jun 27, 4:00 PM CDTHAIL 0.88Concrete, NDNICKEL SIZE HAIL FALLING AT CURRENT TIME IN THE TOWN OF CONCRETE.
Jun 27, 4:00 PM CDTHAIL 1Concrete, NDNICKEL TO QUARTER SIZED HAIL FELL FOR SEVERAL MINUTES IN THE TOWN OF CONCRETE AND AT THE NEARBY CAVALIER AIR FORCE STATION.
Jun 27, 4:02 PM CDTTORNADO 11 W Milton, NDBRIEF TOUCHDOWN AS VIEWED FROM NEAR GARDAR BY A TRAINED SPOTTER. TORNADO TRACKED FOR NEARLY ONE MILE ACROSS THE SOUTHWEST CORNER OF MILTON. ABOUT 8 EMPTY GRAIN CARS ALONG A GRAIN TRAIN AT THE LOADING FACILITY WERE BLOWN OVER TO THE SOUTHWEST. TRACKED LENGTH ES
Jun 27, 4:02 PM CDTTORNADO 11 W Milton, NDBRIEF TOUCHDOWN AS VIEWED LOOKING WEST NORTHWEST FROM GARDAR AND EAST SOUTHEAST FROM OSNABROCK BY TRAINED SPOTTERS. TORNADO TRACKED SOUTHEASTWARD FOR NEARLY ONE MILE ACROSS THE SOUTHWEST CORNER OF MILTON BY 404 PM CDT. ABOUT 8 EMPTY GRAIN CARS ALONG A GRAIN TR
Jun 27, 4:02 PM CDTTORNADO3 Wnw Gardar, NDBRIEF TOUCHDOWN NOTED.
Jun 27, 4:09 PM CDTTORNADO 12 Nnw Union, NDTHIS TORNADO WAS VIEWED BY TRAINED SPOTTERS FROM NEAR EDINBURG AND NEAR ADAMS. THIS TORNADO TRACKED FROM ROUGHLY 2 NNW OF UNION... THROUGH UNION AND TO AT LEAST 1 MILE SOUTH OF UNION BY 416 PM CDT. NUMEROUS COTTONWOOD AND OAK TREES WERE SNAPPED. ALSO...ONE POW
Jun 27, 4:12 PM CDTTORNADO 1Union, NDTHIS TORNADO WAS VIEWED BY TRAINED SPOTTERS FROM NEAR EDINBURG AND NEAR ADAMS. THIS TORNADO TRACKED FROM ROUGHLY ONE HALF MILE NNW OF UNION... THROUGH UNION AND TO AT LEAST 1 MILE SOUTH OF UNION BY 416 PM CDT. NUMEROUS COTTONWOOD AND OAK TREES WERE SNAPPED. AL
Jun 27, 4:12 PM CDTTORNADO 1Union, NDTHIS TORNADO WAS VIEWED BY TRAINED SPOTTERS FROM NEAR EDINBURG AND NEAR ADAMS. THIS TORNADO TRACKED FROM ROUGHLY ONE HALF MILE NNW OF UNION... THROUGH UNION AND TO AT LEAST 1 MILE SOUTH OF UNION. NUMEROUS COTTONWOOD AND OAK TREES WERE SNAPPED. ALSO...ONE POWER
Jun 27, 4:12 PM CDTTORNADO3 W Edinburg, NDBRIEF SPINUP ALONG RIDGE BETWEEN ADAMS AND EDINBURG.
Jun 27, 4:17 PM CDTTORNADO 05 Ssw Edinburg, NDTHIS TORNADO TRACKED FOR AT LEAST 3 MILES ACROSS MAINLY OPEN FIELDS TO AROUND 5 WEST OF PARK RIVER BY 428 PM CDT. THIS TORNADO VARYING RED AND BLACK DIRT PLUME AND WAS VIEWED...PHOTOGRAPHED AND REPORTED BY MULTIPLE TRAINED SPOTTERS. MAXIMUM WIDTH ESTIMATED TO
Jun 27, 4:17 PM CDTTORNADO5 E Adams, NDMULTIPLE TORNADO VOTICES VIEWED FROM ADAMS.
Jun 27, 4:24 PM CDTTORNADO2 E Adams, NDNEW TORNADO VIEWED. POSSIBLE STRUCTURE HIT.

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 27, 2:42 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.6 hours before the alert went out and 307 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, Bismarck Municip, ND at 12:00Z on 2015-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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, Bismarck Municip, ND at 12:00Z on 2015-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
17 J/kg
Mixed-layer CIN
-293 J/kg
Mixed-layer LCL
1820 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
190 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.

775 
WFUS53 KFGF 272034
TORFGF
NDC019-067-099-272115-
/O.NEW.KFGF.TO.W.0015.150627T2034Z-150627T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
334 PM CDT SAT JUN 27 2015

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN CAVALIER COUNTY IN NORTHEASTERN NORTH DAKOTA...
  WESTERN PEMBINA COUNTY IN NORTHEASTERN NORTH DAKOTA...
  NORTHWESTERN WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA...

* UNTIL 415 PM CDT
    
* AT 334 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR WALHALLA...OR 19 MILES NORTHEAST OF
  LANGDON...MOVING SOUTHEAST AT 40 MPH.

  HAZARD...TORNADO AND TENNIS BALL SIZE HAIL. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

* THIS DANGEROUS STORM WILL BE NEAR...
  WALHALLA AROUND 335 PM CDT.
  OLGA AROUND 340 PM CDT.
  CONCRETE AND AKRA AROUND 350 PM CDT.
  MOUNTAIN AROUND 355 PM CDT.
  GARDAR AND HENSEL AROUND 400 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
GRAND FORKS.

&&

LAT...LON 4898 9779 4848 9738 4839 9807 4899 9828
TIME...MOT...LOC 2034Z 333DEG 43KT 4890 9800 

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

JK
2 follow-up statements
784 
WWUS53 KFGF 272054
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
354 PM CDT SAT JUN 27 2015

NDC019-067-099-272115-
/O.CON.KFGF.TO.W.0015.000000T0000Z-150627T2115Z/
CAVALIER ND-PEMBINA ND-WALSH ND-
354 PM CDT SAT JUN 27 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN CAVALIER...WESTERN PEMBINA AND NORTHWESTERN WALSH
COUNTIES...
    
AT 353 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CONCRETE...OR 23 MILES EAST OF LANGDON...MOVING
SOUTHEAST AT 40 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

THIS DANGEROUS STORM WILL BE NEAR...
  BACKOO AROUND 400 PM CDT.
  AKRA AND MOUNTAIN AROUND 405 PM CDT.
  CRYSTAL AND HENSEL AROUND 415 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4848 9738 4839 9807 4878 9821 4898 9779
TIME...MOT...LOC 2053Z 325DEG 33KT 4882 9785 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

JK
678 
WWUS53 KFGF 272108
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
408 PM CDT SAT JUN 27 2015

NDC019-067-099-272115-
/O.CON.KFGF.TO.W.0015.000000T0000Z-150627T2115Z/
CAVALIER ND-PEMBINA ND-WALSH ND-
408 PM CDT SAT JUN 27 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHEASTERN CAVALIER...SOUTHWESTERN PEMBINA AND NORTHWESTERN WALSH
COUNTIES...
    
AT 407 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR UNION...OR 21
MILES SOUTHEAST OF LANGDON...MOVING SOUTHEAST AT 55 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES. 

THIS TORNADO WILL BE NEAR...
  UNION AND GARDAR AROUND 410 PM CDT.
  EDINBURG AROUND 415 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4848 9738 4839 9807 4868 9817 4881 9773
TIME...MOT...LOC 2107Z 332DEG 47KT 4860 9797 

TORNADO...OBSERVED
HAIL...1.75IN

$$

JK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 3:01 PM CDTTornado WarningFGFCavalier, Pembina44 min
Jun 27, 4:12 PM CDTTornado Warning Tornado observedFGFCavalier, Grand Forks, Nelson, Pembina, Walsh48 min
Jun 27, 4:37 PM CDTTornado WarningFGFGrand Forks, Nelson, Steele38 min
Jun 27, 4:40 PM CDTTornado WarningFGFGrand Forks, Nelson50 min
Jun 27, 4:58 PM CDTTornado WarningFGFBarnes, Cass, Ransom47 min
Jun 27, 5:03 PM CDTSevere Thunderstorm WarningFGFGrand Forks, Walsh27 min
Jun 27, 5:10 PM CDTTornado WarningFGFGrand Forks, Steele50 min
Jun 27, 5:27 PM CDTTornado WarningFGFGrand Forks48 min
Jun 27, 5:39 PM CDTTornado WarningFGFGrand Forks, Steele, Traill51 min
Jun 27, 5:42 PM CDTTornado WarningFGFBarnes, Cass, Ransom48 min
Jun 27, 6:14 PM CDTTornado WarningFGFBarnes, Cass, Steele, Traill46 min
Jun 27, 6:26 PM CDTTornado WarningFGFTraill34 min
Jun 27, 6:30 PM CDTTornado WarningFGFRansom, Richland, Sargent45 min
Jun 27, 6:55 PM CDTTornado WarningFGFCass, Ransom, Richland35 min
Jun 27, 6:59 PM CDTTornado WarningFGFCass, Traill12 min

Nearby

Tornado Warnings in North Dakota, 2015Every tornado warning in 2015Tornadoes in 2015

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.