Alert archive / North Dakota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 79, NWS Grand Forks, ND

July 9, 20165 counties in North Dakota; Marshall County, Polk County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 9, 2016, 7:30 PM CDT for 5 counties in North Dakota; Marshall County, Polk County, Minnesota. It was in force for 60 min. 12 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: Jul 9, 2016, 7:30 PM CDT (00:30 UTC)
Expired: Jul 9, 2016, 8:30 PM CDT
In force: 60 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Marshall County, MN, Polk County, MN, Cass County, ND, Grand Forks County, ND, Steele County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 40 km from the middle of the area, began a volume at 00:31 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

Time	Report	Where	Remark
Jul 9, 7:30 PM CDT	HAIL 1.75	Larimore, ND
Jul 9, 7:40 PM CDT	HAIL 1	3 E Larimore, ND
Jul 9, 7:50 PM CDT	HAIL 1.75	Northwood, ND
Jul 9, 7:55 PM CDT	HAIL 2	Northwood, ND
Jul 9, 8:04 PM CDT	HAIL 1	Hatton, ND	PICTURE AND REPORT POSTED VIA SOCIAL MEDIA.
Jul 9, 8:09 PM CDT	HAIL 2.5	1 Nw Northwood, ND	NUMEROUS TENNIS BALL SIZE HAIL LEADING TO HEAVY TREE DEFOLIAGE DAMAGE.
Jul 9, 8:12 PM CDT	HAIL 1.75	6 Ne Hatton, ND	LOTS OF GOLF BALL SIZED HAIL AND VERY HEAVY RAIN AND WIND.
Jul 9, 8:19 PM CDT	HAIL 0.88	6 W Reynolds, ND
Jul 9, 8:20 PM CDT	HAIL 1.5	4 Ne Buxton, ND
Jul 9, 8:30 PM CDT	HAIL 1.25	Buxton, ND
Jul 9, 8:35 PM CDT	TSTM WND GST 70	4 S Buxton, ND	DEPUTY REPORTS SEVERE WINDS IMPACTING INTERSTATE 29 NEAR MP114.
Jul 9, 8:38 PM CDT	TSTM WND GST 59	13 Ese Finley, ND	PEAK WIND MEASURED AT A PERSONAL WEATHER STATION.

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3085 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1729 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 165 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 20.1

Open this sounding in Storm Lab

The text

As transmitted.

783 
WUUS53 KFGF 100030
SVRFGF
MNC089-119-NDC017-035-091-097-099-100130-
/O.NEW.KFGF.SV.W.0079.160710T0030Z-160710T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
730 PM CDT SAT JUL 9 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN POLK COUNTY IN NORTHWESTERN MINNESOTA...
  SOUTHWESTERN MARSHALL COUNTY IN NORTHWESTERN MINNESOTA...
  SOUTHEASTERN WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA...
  GRAND FORKS COUNTY IN NORTHEASTERN NORTH DAKOTA...
  NORTHEASTERN STEELE COUNTY IN SOUTHEASTERN NORTH DAKOTA...
  TRAILL COUNTY IN SOUTHEASTERN NORTH DAKOTA...
  NORTH CENTRAL CASS COUNTY IN SOUTHEASTERN NORTH DAKOTA...

* UNTIL 830 PM CDT

* AT 729 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM FOREST RIVER TO NEAR LOGAN CENTER...MOVING SOUTHEAST
  AT 35 MPH.

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT 
           WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  ARDOCH AROUND 735 PM CDT. 
  NORTHWOOD AROUND 740 PM CDT. 
  POLAND AROUND 745 PM CDT. 
  GOLDEN LAKE AROUND 750 PM CDT. 
  MANVEL AND HATTON AROUND 755 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 99 AND 166.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO SHELTER INSIDE A STRONG BUILDING... AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4822 9646 4712 9717 4767 9790 4778 9788
      4830 9752
TIME...MOT...LOC 0029Z 305DEG 32KT 4820 9745 4772 9778 

HAIL...1.75IN
WIND...60MPH
 
$$

KNUTSVIG

4 follow-up statements

873 
WWUS53 KFGF 100033
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
733 PM CDT SAT JUL 9 2016

MNC089-119-NDC017-035-091-097-099-100130-
/O.CON.KFGF.SV.W.0079.000000T0000Z-160710T0130Z/
POLK MN-MARSHALL MN-WALSH ND-GRAND FORKS ND-STEELE ND-TRAILL ND-
CASS ND-
733 PM CDT SAT JUL 9 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR WESTERN POLK...SOUTHWESTERN MARSHALL...SOUTHEASTERN WALSH...GRAND
FORKS...NORTHEASTERN STEELE...TRAILL AND NORTH CENTRAL CASS
COUNTIES...

AT 732 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR FOREST RIVER TO 7 MILES SOUTHEAST OF LOGAN
CENTER...MOVING SOUTHEAST AT 35 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...LAW ENFORCEMENT. AT 730 PM...GOLF BALL SIZE HAIL WAS
         REPORTED IN LARIMORE. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT
         WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  ARDOCH AROUND 735 PM CDT. 
  GILBY AROUND 740 PM CDT. 
  NORTHWOOD AND POLAND AROUND 745 PM CDT. 
  GOLDEN LAKE AROUND 750 PM CDT. 
  MANVEL AND HATTON AROUND 755 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 99 AND 166.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4822 9646 4712 9717 4767 9790 4778 9788
      4830 9752
TIME...MOT...LOC 0032Z 305DEG 32KT 4819 9743 4771 9776 

HAIL...1.75IN
WIND...60MPH
 
$$

KNUTSVIG

936 
WWUS53 KFGF 100049
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
749 PM CDT SAT JUL 9 2016

MNC089-NDC099-100058-
/O.CAN.KFGF.SV.W.0079.000000T0000Z-160710T0130Z/
MARSHALL MN-WALSH ND-
749 PM CDT SAT JUL 9 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MARSHALL AND
SOUTHEASTERN WALSH COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED IN WALSH
COUNTY. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4748 9765 4767 9779 4784 9762 4816 9750
      4817 9649 4712 9717
TIME...MOT...LOC 0048Z 309DEG 40KT 4812 9729 4777 9744 4764 9761 

$$

MNC119-NDC017-035-091-097-100130-
/O.CON.KFGF.SV.W.0079.000000T0000Z-160710T0130Z/
POLK MN-GRAND FORKS ND-STEELE ND-TRAILL ND-CASS ND-
749 PM CDT SAT JUL 9 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR WESTERN POLK...GRAND FORKS...NORTHEASTERN STEELE...TRAILL AND
NORTH CENTRAL CASS COUNTIES...

AT 748 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES SOUTHWEST OF POLAND TO 6 MILES EAST OF
NORTHWOOD TO NEAR GOLDEN LAKE...MOVING SOUTHEAST AT 45 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...PUBLIC. AT 740 PM...QUARTER SIZE HAIL WAS
         REPORTED 3 MILES EAST OF LARIMORE. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT
         WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  MANVEL AND HATTON AROUND 755 PM CDT. 
  HOLMES AROUND 800 PM CDT. 
  GRAND FORKS...PORTLAND AND MAYVILLE AROUND 810 PM CDT. 
  BUXTON AND EAST GRAND FORKS AROUND 815 PM CDT.  
  MALLORY...CUMMINGS AND KEY WEST AROUND 820 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 99 AND 158.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4748 9765 4767 9779 4784 9762 4816 9750
      4817 9649 4712 9717
TIME...MOT...LOC 0048Z 309DEG 40KT 4812 9729 4777 9744 4764 9761 

HAIL...1.75IN
WIND...60MPH
 
$$

KNUTSVIG

718 
WWUS53 KFGF 100057
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
757 PM CDT SAT JUL 9 2016

MNC119-NDC017-035-091-097-100130-
/O.CON.KFGF.SV.W.0079.000000T0000Z-160710T0130Z/
POLK MN-GRAND FORKS ND-STEELE ND-TRAILL ND-CASS ND-
757 PM CDT SAT JUL 9 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR WESTERN POLK...CENTRAL GRAND FORKS...NORTHEASTERN STEELE...TRAILL
AND NORTH CENTRAL CASS COUNTIES...

AT 756 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM MANVEL TO NEAR HOLMES TO NEAR HATTON...MOVING
SOUTHEAST AT 35 MPH.

HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

SOURCE...PUBLIC. AT 750 PM...GOLF BALL SIZE HAIL WAS REPORTED
         IN NORTHWOOD. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT
         WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  HOLMES AROUND 800 PM CDT. 
  MAYVILLE...PORTLAND AND ROSEVILLE AROUND 815 PM CDT. 
  BUXTON...EAST GRAND FORKS AND REYNOLDS AROUND 820 PM CDT. 
  HILLSBORO...DAVIDSON AND KEY WEST AROUND 830 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 99 AND 158.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4748 9765 4762 9773 4782 9756 4816 9740
      4817 9649 4712 9717
TIME...MOT...LOC 0056Z 305DEG 32KT 4808 9721 4773 9736 4760 9753 

HAIL...1.75IN
WIND...60MPH
 
$$

KNUTSVIG

511 
WWUS53 KFGF 100103
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
803 PM CDT SAT JUL 9 2016

MNC119-NDC017-035-091-097-100130-
/O.CON.KFGF.SV.W.0079.000000T0000Z-160710T0130Z/
POLK MN-GRAND FORKS ND-STEELE ND-TRAILL ND-CASS ND-
803 PM CDT SAT JUL 9 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR WESTERN POLK...EASTERN GRAND FORKS...NORTHEASTERN STEELE...TRAILL
AND NORTH CENTRAL CASS COUNTIES...

AT 802 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR MANVEL TO HOLMES TO NEAR HATTON...MOVING
SOUTHEAST AT 40 MPH.

HAZARD...TWO INCH HAIL AND 60 MPH WIND GUSTS. 

SOURCE...PUBLIC. AT 755 PM...EGG SIZE HAIL WAS REPORTED IN
         NORTHWOOD. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT
         WIND DAMAGE TO ROOFS...SIDING...AND TREES. 

THESE SEVERE STORMS WILL BE NEAR...
  PORTLAND AROUND 810 PM CDT. 
  MAYVILLE...REYNOLDS AND EAST GRAND FORKS AROUND 815 PM CDT. 
  BUXTON AROUND 820 PM CDT. 
  MALLORY...CUMMINGS AND SHERACK AROUND 825 PM CDT. 
  HILLSBORO...FISHER AND KEY WEST AROUND 830 PM CDT. 

ALSO INCLUDES INTERSTATE 29 BETWEEN MILE MARKERS 99 AND 158.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS.

&&

LAT...LON 4748 9765 4760 9769 4778 9749 4816 9723
      4817 9649 4712 9717
TIME...MOT...LOC 0102Z 302DEG 35KT 4805 9713 4770 9728 4757 9745 

HAIL...2.00IN
WIND...60MPH
 
$$

KNUTSVIG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:09 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	66 min
Jul 9, 8:25 PM CDT	Tornado Warning	FGF	Eddy	20 min
Jul 9, 8:31 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Traill	44 min
Jul 9, 8:49 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele, Traill	41 min
Jul 9, 9:08 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	52 min
Jul 9, 9:25 PM CDT	Severe Thunderstorm Warning	FGF	Griggs, Steele	50 min
Jul 9, 9:30 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Steele, Traill	45 min
Jul 9, 10:13 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Traill	62 min
Jul 9, 11:09 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	66 min
Jul 9, 11:13 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	62 min
Jul 10, 12:02 AM CDT	Severe Thunderstorm Warning	FGF	Richland	58 min
Jul 10, 12:11 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom	64 min
Jul 10, 12:46 AM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	59 min
Jul 10, 1:10 AM CDT	Flash Flood Warning	FGF	Richland	8 hr
Jul 10, 1:41 AM CDT	Severe Thunderstorm Warning	FGF	Richland	42 min
Jul 9, 10:00 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Mahnomen, Norman, Otter Tail	60 min
Jul 9, 10:57 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Otter Tail, Wilkin	63 min
Jul 9, 11:55 PM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	65 min
Jul 10, 12:52 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wadena, Wilkin	53 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2016 Severe Thunderstorm Warnings in Minnesota, 2016 Every 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.