Alert archive / Minnesota / Tornado Warnings in 2016

Tornado Warning 34, NWS Grand Forks, ND

August 28, 2016Norman County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 28, 2016, 9:56 PM CDT for Norman County, Minnesota. It was in force for 49 min. 1 report 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 28, 2016, 9:56 PM CDT (02:56 UTC)
Expired
Aug 28, 2016, 10:45 PM CDT
In force
49 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Observed
Hail
1.0 in

County Norman County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 79 km from the middle of the area, began a volume at 02:56 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 28, 10:08 PM CDTTORNADO6 Nw Gary, MNTORNADO TRACKED THROUGH FARM YARD WITH BARN DESTROYED.

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

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 2.9 hours before the alert went out and 261 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, International Fa, MN at 00:00Z on 2016-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 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, International Fa, MN at 00:00Z on 2016-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.193958Sfc1 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
36 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
1127 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

058 
WFUS53 KFGF 290256
TORFGF
MNC107-290345-
/O.NEW.KFGF.TO.W.0034.160829T0256Z-160829T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
956 PM CDT SUN AUG 28 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN NORMAN COUNTY IN NORTHWESTERN MINNESOTA...

* UNTIL 1045 PM CDT

* AT 954 PM CDT...A CONFIRMED TORNADO WAS LOCATED JUST SOUTHWEST OF
  FLAMING AND NORTHWEST OF GARY...OR 44 MILES NORTHEAST OF
  FARGO...AND IS NEARLY STATIONARY OR MOVING VERY SLOWLY SOUTH AND
  EAST.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. ALSO...TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM
AT NIGHT. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW!

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 4728 9645 4750 9648 4750 9607 4726 9607
TIME...MOT...LOC 0254Z 240DEG 2KT 4744 9634 

TORNADO...OBSERVED
HAIL...1.00IN

$$

LEE
3 follow-up statements
922 
WWUS53 KFGF 290313
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1013 PM CDT SUN AUG 28 2016

MNC107-290345-
/O.CON.KFGF.TO.W.0034.000000T0000Z-160829T0345Z/
NORMAN MN-
1013 PM CDT SUN AUG 28 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN NORMAN COUNTY...
    
AT 1012 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR GARY...OR 44
MILES NORTHEAST OF FARGO...MOVING SOUTHEAST AT 10 MPH.

HAZARD...DAMAGING TORNADO AND QUARTER SIZE HAIL. 

SOURCE...PUBLIC CONFIRMED TORNADO. AT 1008 PM...A TORNADO WAS
         REPORTED APPROXIMATELY 6 MILES NNW OF GARY.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR.  TREE DAMAGE
         IS LIKELY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. ALSO...TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM
AT NIGHT. TAKE COVER NOW!

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 4728 9645 4750 9648 4750 9607 4726 9607
TIME...MOT...LOC 0312Z 310DEG 9KT 4741 9629 

TORNADO...OBSERVED
HAIL...1.00IN

$$

LEE
321 
WWUS53 KFGF 290326
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1026 PM CDT SUN AUG 28 2016

MNC107-290345-
/O.CON.KFGF.TO.W.0034.000000T0000Z-160829T0345Z/
NORMAN MN-
1026 PM CDT SUN AUG 28 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
NORTHEASTERN NORMAN COUNTY...
    
AT 1026 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR GARY...OR 44 MILES NORTHWEST OF DETROIT
LAKES...MOVING SOUTHEAST AT 10 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED ROTATION. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. ALSO...TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM
AT NIGHT. TAKE COVER NOW!

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 4728 9645 4750 9648 4750 9607 4726 9607
TIME...MOT...LOC 0326Z 299DEG 7KT 4739 9625 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

LEE
713 
WWUS53 KFGF 290344
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1044 PM CDT SUN AUG 28 2016

MNC107-290353-
/O.EXP.KFGF.TO.W.0034.000000T0000Z-160829T0345Z/
NORMAN MN-
1044 PM CDT SUN AUG 28 2016

...THE TORNADO WARNING FOR NORTHEASTERN NORMAN COUNTY WILL EXPIRE AT
1045 PM CDT...
    
THE TORNADO WARNING THAT WAS PREVIOUSLY IN EFFECT HAS BEEN REISSUED
FOR EASTERN NORMAN COUNTY...NORTH CENTRAL BECKER COUNTY AND MAHNOMEN
COUNTY AND IS IN EFFECT UNTIL 1130 PM CDT. PLEASE REFER TO THAT
BULLETIN FOR THE LATEST SEVERE WEATHER INFORMATION.

LAT...LON 4728 9645 4750 9648 4750 9607 4726 9607
TIME...MOT...LOC 0342Z 240DEG 2KT 4739 9625 

$$

LEE

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 7:48 PM CDTSpecial Weather StatementFGFPolk, Red Lake42 min
Aug 28, 7:49 PM CDTSpecial Weather StatementFGFLake of the Woods56 min
Aug 28, 8:03 PM CDTTornado Warning Tornado observedFGFPolk, Red Lake27 min
Aug 28, 8:27 PM CDTTornado WarningFGFMahnomen, Polk, Red Lake33 min
Aug 28, 8:50 PM CDTTornado WarningFGFMahnomen, Norman, Polk25 min
Aug 28, 9:05 PM CDTSevere Thunderstorm WarningFGFMahnomen, Norman, Polk40 min
Aug 28, 9:12 PM CDTTornado Warning Tornado observedConsiderable damage threatFGFNorman, Polk48 min
Aug 28, 9:41 PM CDTAreal Flood AdvisoryFGFNorman, Polk7 hr
Aug 28, 10:37 PM CDTFlash Flood WarningFGFMahnomen, Norman, Polk10 hr
Aug 28, 10:41 PM CDTTornado WarningFGFBecker, Mahnomen, Norman49 min
Aug 28, 11:31 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Clearwater, Mahnomen, Norman59 min
Aug 29, 2:11 AM CDTSpecial Weather StatementFGFOtter Tail, Wadena64 min
Aug 29, 3:29 AM CDTSpecial Weather StatementFGFOtter Tail61 min
Aug 29, 4:36 AM CDTAreal Flood AdvisoryFGFBeltrami, Clearwater, Hubbard3 hr

Nearby

Tornado 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.