Alert archive / Minnesota / Tornado Warnings in 2007

Tornado Warning 15, NWS Grand Forks, ND

June 17, 2007Polk County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 17, 2007, 3:58 PM CDT for Polk County, Minnesota. It was in force for 36 min. 5 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 17, 2007, 3:58 PM CDT (20:58 UTC)
Expired
Jun 17, 2007, 4:34 PM CDT
In force
36 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Polk County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 50 km from the middle of the area, began a volume at 20:58 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 17, 4:05 PM CDTFUNNEL CLOUD3 E Fisher, MNFUNNEL CLOUD OBSERVED DISTANT SOUTHEAST OF FISHER BY HIGHWAY PATROL.
Jun 17, 4:05 PM CDTTORNADOCrookston, MNDEBRIS REPORTED ON SOUTHERN EDGE OF CROOKSTON.
Jun 17, 4:11 PM CDTTORNADO2 W Crookston, MN2 MI WEST OF CROOKSTON ON CTY ROAD 9 TOUCHDOWN WITH DEBRIS REPORTED.
Jun 17, 4:11 PM CDTTORNADO3 Wsw Crookston, MNTOUCHDOWN REPORTED IN OPENED FIELD TO SOUTH OF COUNTY ROAD 9...ABOUT 2 MI WEST OF THE SUGAR BEET PLANT. A ROPE FUNNEL PERSISTED FOR ABOUT 3 MINUTES...WITH INTERMITTENT TORNADO TOUCHDOWNS OVER A 2 MINUTE PERIOD ALONG A HALF MILE PATH UNTIL 413 PM CDT.
Jun 17, 4:12 PM CDTTORNADO2 Sw Crookston, MNSHERIFFS OFFICE REPORTED TOUCHDOWN WITH DEBRIS.

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, 9.0 hours before the alert went out and 271 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 2007-06-17Temperature 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 2007-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1572 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
156 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 172058
TORFGF
MNC119-172145-
/O.NEW.KFGF.TO.W.0015.070617T2058Z-070617T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
358 PM CDT SUN JUN 17 2007

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL POLK COUNTY IN NORTHWEST MINNESOTA...

* UNTIL 445 PM CDT

* AT 354 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES
  NORTHWEST OF ELDRED...OR 18 MILES SOUTHEAST OF GRAND FORKS...MOVING
  TO THE EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  CROOKSTON AT 410 PM CDT...
  HAROLD AT 420 PM CDT...
  6 MILES NORTH OF MELVIN AT 430 PM CDT...

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

LAT...LON 4780 9692 4762 9692 4760 9636 4794 9658

$$

VOELKER
2 follow-up statements
000 
WWUS53 KFGF 172113
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
413 PM CDT SUN JUN 17 2007

MNC119-172145-
/O.CON.KFGF.TO.W.0015.000000T0000Z-070617T2145Z/
POLK MN-
413 PM CDT SUN JUN 17 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR CENTRAL
POLK COUNTY...

AT 411 PM CDT...WEATHER SPOTTERS REPORTED A TORNADO. THE TORNADO WAS
LOCATED NEAR CROOKSTON...OR 23 MILES SOUTHEAST OF GRAND FORKS...
MOVING TO THE EAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  HAROLD BY 420 PM CDT...

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

LAT...LON 4780 9692 4762 9692 4760 9636 4794 9658

$$

TG/AYD
000 
WWUS53 KFGF 172134
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
433 PM CDT SUN JUN 17 2007

MNC119-172143-
/O.CAN.KFGF.TO.W.0015.000000T0000Z-070617T2145Z/
POLK MN-
433 PM CDT SUN JUN 17 2007

...THE TORNADO WARNING FOR CENTRAL POLK COUNTY IS CANCELLED...

AT 433 PM CDT...THE STORM HAS WEAKENED AND MOVED OUT OF CENTRAL POLK 
COUNTY. SO THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT MONDAY MORNING
FOR NORTHWESTERN MINNESOTA.

LAT...LON 4780 9692 4762 9692 4760 9636 4794 9658

$$

TG/AYD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 2:37 AM CDTWind AdvisoryFGFBecker, Clay, Grant, Mahnomen, Norman, Otter Tail and 2 more13 hr
Jun 17, 4:07 AM CDTSevere Thunderstorm WarningFGFClay, Norman53 min
Jun 17, 3:04 PM CDTFlash Flood WatchFGFClay, Wilkin13 hr

Nearby

Tornado Warnings in Minnesota, 2007Every tornado warning in 2007Tornadoes in 2007

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.