Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 59, NWS Grand Forks, ND

July 4, 20124 counties in North Dakota; Kittson County, Marshall County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 4, 2012, 7:54 AM CDT for 4 counties in North Dakota; Kittson County, Marshall County, Minnesota. It was in force for 66 min. 4 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 4, 2012, 7:54 AM CDT (12:54 UTC)
Expired: Jul 4, 2012, 9:00 AM CDT
In force: 66 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Kittson County, MN, Marshall County, MN, Cavalier County, ND, Pembina County, ND, Ramsey County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 131 km from the middle of the area, began a volume at 12:54 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 4, 7:59 AM CDT	TSTM WND DMG	Olga, ND	3 GRAIN BINS BLOWN DOWN.
Jul 4, 8:05 AM CDT	TSTM WND DMG	1 Ssw Cavalier, ND	24 INCH DIAMETER TREE DOWN AND SEVERAL POWER LINES DOWN. ALSO REPORTED PEA SIZE HAIL AND 6 TO 8 INCHES OF WATER ON MAIN STREET.
Jul 4, 8:22 AM CDT	TSTM WND DMG	Hensel, ND	TREES DOWN IN HENSEL ... LOCAL FARMER LOST A POLE BARN AND GARAGE WHILE SOME FARM EQUIPMENT WAS DAMAGED ... PUBLIC POST ON KVLY FACEBOOK PAGE
Jul 4, 8:30 AM CDT	TSTM WND DMG	Crystal, ND	PUBLIC REPORTED VIA KVLY FACEBOOK PAGE TREE BRANCH ALMOST 4 FEET IN CIRCUMFERENCE DOWN.

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 12:00Z, 0.9 hours before the alert went out and 295 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: 113 J/kg
Mixed-layer CIN: -490 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 101 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.

776 
WUUS53 KFGF 041254
SVRFGF
MNC069-089-NDC019-067-071-099-041400-
/O.NEW.KFGF.SV.W.0059.120704T1254Z-120704T1400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
754 AM CDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN KITTSON COUNTY IN NORTHWEST MINNESOTA...
  NORTHWESTERN MARSHALL COUNTY IN NORTHWEST MINNESOTA...
  SOUTHEASTERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA...
  PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA...
  NORTHEASTERN RAMSEY COUNTY IN NORTHEAST NORTH DAKOTA...
  WALSH COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 900 AM CDT

* AT 749 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 5 MILES WEST OF NECHE TO NEAR
  MOUNTAIN TO EDMORE...MOVING TO THE EAST AT 35 MPH.

  AT 745 AM CDT...DAMAGING WINDS AND NICKEL SIZE HAIL WAS REPORTED   
  ONE MILE WEST OF OLGA .

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CAVALIER...UNION AND HENSEL AROUND 800 AM CDT.
  BATHGATE AROUND 805 AM CDT.
  HAMILTON AND ADAMS AROUND 810 AM CDT.
  GLASSTON...EDINBURG AND CRYSTAL AROUND 815 AM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORMS
INCLUDE GARDAR...PEMBINA...ST. THOMAS...HUMBOLDT...PARK RIVER AND
ORLEANS.

FOR MOTORISTS ON INTERSTATE 29...SEVERE THUNDERSTORMS WILL BE
BETWEEN...MILE MARKERS 176 AND 216...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THE STORMS...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4900 9655 4860 9677 4827 9751 4835 9867
      4901 9782
TIME...MOT...LOC 1253Z 277DEG 33KT 4900 9760 4869 9777
          4840 9839
WIND...HAIL 60MPH 1.00IN

$$

JK

1 follow-up statement

149 
WWUS53 KFGF 041327
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
827 AM CDT WED JUL 4 2012

NDC071-041336-
/O.CAN.KFGF.SV.W.0059.000000T0000Z-120704T1400Z/
RAMSEY ND-
827 AM CDT WED JUL 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RAMSEY COUNTY IN
NORTHEAST NORTH DAKOTA IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE 
WARNED AREA.

LAT...LON 4833 9829 4901 9782 4900 9655 4860 9677
      4827 9751
TIME...MOT...LOC 1326Z 277DEG 33KT 4894 9729 4866 9739
          4832 9769

$$

MNC069-089-NDC019-067-099-041400-
/O.CON.KFGF.SV.W.0059.000000T0000Z-120704T1400Z/
KITTSON MN-CAVALIER ND-PEMBINA ND-MARSHALL MN-WALSH ND-
827 AM CDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
MARSHALL AND WESTERN KITTSON COUNTIES IN NORTHWEST MINNESOTA...AND
WALSH...PEMBINA AND SOUTHEASTERN CAVALIER COUNTIES IN NORTHEAST NORTH
DAKOTA UNTIL 900 AM CDT...

AT 822 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 5 MILES WEST OF PEMBINA TO 3
MILES NORTH OF ST. THOMAS TO NEAR PISEK...MOVING TO THE EAST AT 40
MPH. QUARTER SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

SEVERE THUNDERSTORMS WILL BE NEAR...
  VESELEYVILLE AND JOLIETTE AROUND 835 AM CDT.
  GRAFTON...HUMBOLDT AND BOWESMONT AROUND 840 AM CDT.
  DRAYTON...OAKWOOD AND HERRICK AROUND 845 AM CDT.
  MATTSON...ROBBIN AND ORLEANS AROUND 850 AM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS
INCLUDE NORTHCOTE...HALLOCK...LANCASTER...KENNEDY AND DONALDSON.

FOR MOTORISTS ON INTERSTATE 29...SEVERE THUNDERSTORMS WILL BE
BETWEEN...MILE MARKERS 176 AND 216...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4833 9829 4901 9782 4900 9655 4860 9677
      4827 9751
TIME...MOT...LOC 1326Z 277DEG 33KT 4894 9729 4866 9739
          4832 9769
WIND...HAIL 60MPH 1.00IN

$$
SPEICHER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 4:12 AM CDT	Heat Advisory	FGF	Barnes, Cass, Grand Forks, Pembina, Ransom, Richland and 4 more	18 hr
Jul 4, 5:41 AM CDT	Special Weather Statement	FGF	Cavalier	64 min
Jul 4, 5:58 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	62 min
Jul 4, 6:55 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Pembina, Towner	65 min
Jul 4, 8:58 AM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	62 min
Jul 4, 9:58 AM CDT	Special Weather Statement	FGF	Grand Forks	62 min
Jul 4, 10:08 AM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	67 min
Jul 4, 9:56 AM CDT	Severe Thunderstorm Warning	FGF	Marshall, Roseau	64 min
Jul 4, 10:36 AM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk	54 min
Jul 4, 11:27 AM CDT	Special Weather Statement	FGF	Pennington	63 min
Jul 4, 12:02 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods	43 min
Jul 4, 1:01 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	59 min
Jul 4, 1:52 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	24 min
Jul 4, 4:55 PM CDT	Special Weather Statement	FGF	Hubbard	50 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2012 Severe Thunderstorm Warnings in Minnesota, 2012 Every severe thunderstorm warning in 2012

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.