Alert archive / North Dakota / Tornado Warnings in 2016

Tornado Warning 29, NWS Grand Forks, ND

August 27, 2016Traill County, North Dakota; Norman County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 27, 2016, 6:01 PM CDT for Traill County, North Dakota; Norman County, Minnesota. It was in force for 29 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
Aug 27, 2016, 6:01 PM CDT (23:01 UTC)
Expired
Aug 27, 2016, 6:30 PM CDT
In force
29 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Observed
Hail
1.5 in

Counties Norman County, MN, Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 27 km from the middle of the area, began a volume at 23:02 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
Aug 27, 6:02 PM CDTTORNADO 32 Ssw Cummings, NDA TORNADO TOUCHED DOWN AND TRACKED TO THE SOUTHEAST FOR NEARLY 3 MILES TO ABOUT 2.5 NNE OF HILLSBORO BY 610 PM CDT. THIS TORNADO DESTROYED A TWO CAR GARAGE AND SNAPPED OR UPROOTED NUMEROUS TREES NORTHWEST OF THE TAFT ELEVATOR. IT CROSSED I-29 NEAR TAFT AND TOR
Aug 27, 6:03 PM CDTTORNADO4 S Cummings, NDTORNADO ONGOING AT TIME OF REPORT. LOCATION ESTIMATED.

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
Aug 27, 4:05 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.0 hours before the alert went out and 289 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 2016-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 2016-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
44 J/kg
Mixed-layer CIN
-177 J/kg
Mixed-layer LCL
1223 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

527 
WFUS53 KFGF 272301
TORFGF
MNC107-NDC097-272330-
/O.NEW.KFGF.TO.W.0029.160827T2301Z-160827T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
601 PM CDT SAT AUG 27 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN NORMAN COUNTY IN NORTHWESTERN MINNESOTA...
  SOUTHEASTERN TRAILL COUNTY IN SOUTHEASTERN NORTH DAKOTA...

* UNTIL 630 PM CDT

* AT 600 PM CDT...A CONFIRMED TORNADO WAS LOCATED OVER CUMMINGS...OR
  30 MILES SOUTH OF GRAND FORKS...MOVING SOUTHEAST AT 20 MPH.

  HAZARD...TORNADO AND PING PONG BALL SIZE HAIL. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

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

* THE TORNADO WILL BE NEAR...
  HILLSBORO AROUND 615 PM CDT. 
  CALEDONIA AROUND 625 PM CDT. 
  HALSTAD AND SHELLY AROUND 630 PM CDT. 

THIS INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 101 AND 112.
 
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 4745 9716 4753 9708 4744 9669 4724 9692
TIME...MOT...LOC 2300Z 307DEG 16KT 4748 9708 

TORNADO...OBSERVED
HAIL...1.50IN

$$

LEE
2 follow-up statements
342 
WWUS53 KFGF 272313
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
613 PM CDT SAT AUG 27 2016

MNC107-NDC097-272330-
/O.CON.KFGF.TO.W.0029.000000T0000Z-160827T2330Z/
NORMAN MN-TRAILL ND-
613 PM CDT SAT AUG 27 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN NORMAN AND SOUTHEASTERN TRAILL COUNTIES...
    
AT 612 PM CDT...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO
WAS LOCATED JUST NORTHEAST OF HILLSBORO...OR 34 MILES SOUTH OF GRAND
FORKS...MOVING SOUTHEAST AT 25 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION. TAKE COVER NOW!

HAZARD...DAMAGING TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. 

IMPACT...YOU ARE IN A LIFE-THREATENING SITUATION. FLYING DEBRIS MAY
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES
         WILL BE DESTROYED. CONSIDERABLE DAMAGE TO HOMES...
         BUSINESSES...AND VEHICLES IS LIKELY AND COMPLETE
         DESTRUCTION IS POSSIBLE. 

THE TORNADO WILL BE NEAR...
  CALEDONIA AROUND 615 PM CDT. 
  HALSTAD AROUND 630 PM CDT. 

THIS INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 101 AND 106.
 
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 4741 9711 4750 9699 4744 9669 4724 9692
TIME...MOT...LOC 2312Z 322DEG 22KT 4742 9702 

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.50IN

$$
JR
935 
WWUS53 KFGF 272330
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
630 PM CDT SAT AUG 27 2016

MNC107-NDC097-272339-
/O.EXP.KFGF.TO.W.0029.000000T0000Z-160827T2330Z/
NORMAN MN-TRAILL ND-
630 PM CDT SAT AUG 27 2016

...THE TORNADO WARNING FOR NORTHWESTERN NORMAN AND SOUTHEASTERN
TRAILL COUNTIES WILL EXPIRE AT 630 PM CDT...
    
THE TORNADO THREAT HAS DIMINISHED AND THE TORNADO WARNING HAS BEEN
CANCELLED. HOWEVER...LARGE HAIL AND DAMAGING WINDS REMAIN LIKELY AND
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.
HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHWESTERN MINNESOTA...AND SOUTHEASTERN NORTH DAKOTA.

LAT...LON 4741 9711 4750 9699 4744 9669 4724 9692
TIME...MOT...LOC 2328Z 307DEG 16KT 4742 9702 

$$

JR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 27, 12:13 PM CDTAreal Flood AdvisoryFGFTraill5 hr
Aug 27, 12:59 PM CDTSevere Thunderstorm WarningFGFRichland61 min
Aug 27, 1:12 PM CDTSevere Thunderstorm WarningFGFCass63 min
Aug 27, 3:03 PM CDTSpecial Weather StatementFGFGrand Forks27 min
Aug 27, 3:10 PM CDTSpecial Weather StatementFGFPembina35 min
Aug 27, 3:22 PM CDTSevere Thunderstorm WarningFGFPembina, Walsh38 min
Aug 27, 3:30 PM CDTSevere Thunderstorm WarningFGFGrand Forks60 min
Aug 27, 3:49 PM CDTSevere Thunderstorm WarningFGFGrand Forks41 min
Aug 27, 3:52 PM CDTSevere Thunderstorm WarningFGFWalsh38 min
Aug 27, 4:11 PM CDTTornado WarningFGFGrand Forks49 min
Aug 27, 4:25 PM CDTSevere Thunderstorm WarningFGFWalsh50 min
Aug 27, 4:54 PM CDTSevere Thunderstorm WarningFGFGrand Forks, Traill51 min
Aug 27, 5:41 PM CDTSevere Thunderstorm WarningFGFTraill49 min
Aug 27, 6:26 PM CDTSevere Thunderstorm WarningFGFCass, Traill64 min
Aug 27, 12:54 PM CDTSpecial Weather StatementFGFWilkin51 min
Aug 27, 1:56 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wilkin64 min
Aug 27, 2:57 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wilkin48 min
Aug 27, 4:16 PM CDTSevere Thunderstorm WarningFGFHubbard29 min
Aug 27, 4:38 PM CDTSevere Thunderstorm WarningFGFOtter Tail, Wilkin67 min
Aug 27, 5:16 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Mahnomen, Norman44 min
Aug 27, 5:33 PM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail57 min
Aug 27, 5:59 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Norman61 min
Aug 27, 6:58 PM CDTSevere Thunderstorm WarningFGFBecker, Clay62 min

Nearby

Tornado Warnings in North Dakota, 2016Tornado Warnings in Minnesota, 2016Every tornado warning in 2016Tornadoes 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.