Alert archive / Minnesota / Tornado Warnings in 2009

Tornado Warning 13, NWS Grand Forks, ND

June 26, 2009Polk County, Minnesota; Grand Forks County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 26, 2009, 6:46 PM CDT for Polk County, Minnesota; Grand Forks County, North Dakota. It was in force for 59 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 26, 2009, 6:46 PM CDT (23:46 UTC)
Expired
Jun 26, 2009, 7:45 PM CDT
In force
59 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon

Counties Polk County, MN, Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 55 km from the middle of the area, began a volume at 23:47 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 26, 7:22 PM CDTFUNNEL CLOUD4 Wsw Grand Forks, NDOBSERVER NEAR EXIT 138 INTERSTATE 29. FUNNEL OBSCURED ON HORIZON TO WEST BY TREES.
Jun 26, 7:22 PM CDTFUNNEL CLOUDGrand Forks, NDEXIT 138 INTERSTATE 29. OBSCURED ON HORIZON BY TREES.
Jun 26, 7:22 PM CDTTORNADO1 N Manvel, NDFUNNEL CLOUD BRIEFLY TOUCHED DOWN.
Jun 26, 7:24 PM CDTFUNNEL CLOUD3 W Grand Forks, NDTWO FUNNEL CLOUDS OBSERVED.
Jun 26, 7:24 PM CDTFUNNEL CLOUD3 Wsw Grand Forks, NDTWO FUNNEL CLOUDS MERGING WITH A LOWERING TOWARD THE GROUND. FUNNELS OBSERVED FROM MULTIPLE LOCATIONS THROUGH 727 PM CDT.
Jun 26, 7:27 PM CDTFUNNEL CLOUDGrand Forks, NDTWO FUNNEL CLOUDS MERGING WITH A LOWERING TOWARD THE GROUND. IN DOUBT WHETHER OR NOT IT TOUCHED DOWN.
Jun 26, 7:28 PM CDTFUNNEL CLOUD2 Sw Grand Forks, NDVIEWED NEAR 32ND AVE... JUST WEST OF I-29.
Jun 26, 7:28 PM CDTFUNNEL CLOUDGrand Forks, ND32ND AVE. NEAR I-29
Jun 26, 7:30 PM CDTHAIL 13 S Arvilla, ND
Jun 26, 7:38 PM CDTHAIL 0.755 S Arvilla, ND
Jun 26, 7:43 PM CDTTORNADO 03 Wnw Grand Forks, NDBRIEF TOUCHDOWN REPORTED NORTH OF HWY 2 HEADING EAST TOWARD CITY.
Jun 26, 7:43 PM CDTTORNADO2 Sw Grand Forks, NDHWY 2 HEADING EAST TOWARD CITY
Jun 26, 7:45 PM CDTTSTM WND DMG3 Se Tabor, MNSEVERAL LARGE 6-8 INCH BRANCHES BROKEN DOWN IN SHELTER BELT.
Jun 26, 7:45 PM CDTHAIL 0.752 Nw Emerado, NDMULTIPLE FUNNEL CLOUDS REPORTED BETWEEN REYNOLDS AND GRAND FORKS
Jun 26, 7:46 PM CDTTSTM WND GST 584 Nnw Grand Forks, NDMEASURED AT ND DOT RWIS SITE ALONG I-29 NEAR MP145.

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 26, 2:53 PM CDTSevere Thunderstorm WatchSPC7 hr
Jun 26, 6:43 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.8 hours before the alert went out and 286 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 12:00Z on 2009-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2009-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1434 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
76 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.

000 
WFUS53 KFGF 262346
TORFGF
MNC119-NDC035-270045-
/O.NEW.KFGF.TO.W.0013.090626T2346Z-090627T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
646 PM CDT FRI JUN 26 2009

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...
  THIS INCLUDES THE CITY OF GRAND FORKS...
  NORTHWESTERN POLK COUNTY IN NORTHWEST MINNESOTA...

* UNTIL 745 PM CDT

* AT 644 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A TORNADO NEAR ARVILLA...OR 21 MILES WEST OF GRAND FORKS...MOVING
  TO THE EAST AT 25 MPH.

A TORNADO HAS BEEN CONFIRMED 3 MILES NORTHEAST OF LARIMORE AT 645 PM 
CDT.

* THE TORNADO WILL BE NEAR...
  GRAND FORKS AFB AT 700 PM CDT...
  EMERADO AT 705 PM CDT...
  GRAND FORKS AT 740 PM CDT...
  MALLORY AT 745 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKER 150 AROUND 725 PM CDT...
  AND MILE MARKER 134 AROUND 740 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS TORNADO ABANDON CARS AND MOBILE HOMES
FOR A STURDY BUILDING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

&&

LAT...LON 4814 9666 4770 9677 4777 9766 4820 9755
TIME...MOT...LOC 2346Z 273DEG 20KT 4794 9751

$$
DK/JK
3 follow-up statements
000 
WWUS53 KFGF 270013
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
713 PM CDT FRI JUN 26 2009

MNC119-NDC035-270045-
/O.CON.KFGF.TO.W.0013.000000T0000Z-090627T0045Z/
GRAND FORKS ND-POLK MN-
713 PM CDT FRI JUN 26 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
GRAND FORKS AND NORTHWESTERN POLK COUNTIES...

AT 709 PM CDT...WEATHER SERVICE DOPPLER RADAR WAS TRACKING A TORNADO.
THE TORNADO WAS LOCATED 4 MILES EAST OF EMERADO...OR 9 MILES WEST OF
GRAND FORKS...MOVING TO THE EAST AT 25 MPH.

* THE TORNADO WILL BE ABOUT...
  8 MILES NORTH OF THOMPSON BY 730 PM CDT...
  GRAND FORKS BY 735 PM CDT...
  EAST GRAND FORKS BY 740 PM CDT...
  MALLORY...6 MILES NORTHWEST OF BYGLAND AND 6 MILES WEST OF DAVIDSON
  BY 745 PM CDT...

A TORNADO HAS BEEN REPORTED AT 706 PM BY A PILOT 8 MILES SOUTHWEST 
OF GRAND FORKS.

  INTERSTATE 29 BETWEEN MILE MARKER 137 AROUND 730 PM CDT...
  AND MILE MARKER 136 AROUND 735 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA AND NORTHEAST NORTH DAKOTA.

&&

LAT...LON 4777 9758 4818 9741 4814 9666 4770 9677
TIME...MOT...LOC 0010Z 276DEG 20KT 4791 9727

$$
DK
000 
WWUS53 KFGF 270025
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
725 PM CDT FRI JUN 26 2009

MNC119-NDC035-270045-
/O.CON.KFGF.TO.W.0013.000000T0000Z-090627T0045Z/
GRAND FORKS ND-POLK MN-
725 PM CDT FRI JUN 26 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
GRAND FORKS AND NORTHWESTERN POLK COUNTIES...

AT 724 PM CDT...WEATHER SERVICE DOPPLER RADAR WAS TRACKING A TORNADO.
THE TORNADO WAS LOCATED 4 MILES WEST OF GRAND FORKS...MOVING TO THE
EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  GRAND FORKS BY 735 PM CDT...
  GRAND FORKS AND 8 MILES NORTH OF THOMPSON BY 735 PM CDT...
  EAST GRAND FORKS BY 745 PM CDT...
  MALLORY...BYGLAND AND 6 MILES WEST OF DAVIDSON BY 745 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKER 138 AROUND 730 PM CDT...
  AND MILE MARKER 137 AROUND 735 PM CDT...

A TORNADO WAS REPORTED AT 722 PM 1 N OF MANVEL. THIS STORM WILL ALSO 
PRODUCE WIND GUSTS UP TO 70 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA AND NORTHEAST NORTH DAKOTA.

&&

LAT...LON 4776 9745 4817 9727 4814 9666 4770 9677
TIME...MOT...LOC 0024Z 281DEG 21KT 4790 9716

$$
DK
000 
WWUS53 KFGF 270034
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
734 PM CDT FRI JUN 26 2009

MNC119-NDC035-270045-
/O.CON.KFGF.TO.W.0013.000000T0000Z-090627T0045Z/
GRAND FORKS ND-POLK MN-
734 PM CDT FRI JUN 26 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
GRAND FORKS AND NORTHWESTERN POLK COUNTIES...

AT 734 PM CDT...WEATHER SERVICE DOPPLER RADAR WAS TRACKING A TORNADO.
THE TORNADO WAS LOCATED 2 MILES SOUTH OF GRAND FORKS...MOVING TO THE
EAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  EAST GRAND FORKS BY 740 PM CDT...
  MALLORY...BYGLAND AND 6 MILES WEST OF DAVIDSON BY 745 PM CDT...

  INTERSTATE 29 BETWEEN MILE MARKERS 135 AND 138 AT 735 PM CDT...

SEVERAL FUNNEL CLOUDS HAVE BEEN SPOTTED NEAR GRAND FORKS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SATURDAY MORNING
FOR NORTHWEST MINNESOTA AND EASTERN NORTH DAKOTA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA AND NORTHEAST NORTH DAKOTA.

&&

LAT...LON 4776 9745 4817 9727 4814 9666 4770 9677
TIME...MOT...LOC 0034Z 281DEG 21KT 4789 9708

$$
DK
--@WWASVRWXSTACOUNTY.WWAPROD--

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 4:22 AM CDTFlash Flood WatchFGFKittson, Marshall24 hr
Jun 26, 6:55 PM CDTTornado WarningFGFMarshall, Polk65 min
Jun 26, 12:20 PM CDTSevere Thunderstorm WarningFGFCavalier, Ramsey, Towner40 min
Jun 26, 2:55 PM CDTSpecial Weather StatementFGFTowner50 min
Jun 26, 5:15 PM CDTSevere Thunderstorm WarningFGFNelson, Walsh60 min
Jun 26, 5:22 PM CDTTornado WarningFGFBenson53 min
Jun 26, 5:32 PM CDTTornado WarningFGFGrand Forks, Nelson58 min
Jun 26, 5:44 PM CDTFlash Flood WarningFGFCavalier, Towner13 hr
Jun 26, 5:56 PM CDTTornado WarningFGFPembina, Walsh64 min
Jun 26, 6:05 PM CDTFlash Flood WarningFGFNelson, Walsh14 hr
Jun 26, 6:10 PM CDTTornado WarningFGFGrand Forks, Nelson65 min
Jun 26, 6:25 PM CDTSevere Thunderstorm WarningFGFGrand Forks, Pembina, Walsh65 min

Nearby

Tornado Warnings in Minnesota, 2009Tornado Warnings in North Dakota, 2009Every tornado warning in 2009Tornadoes in 2009

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.