Alert archive / North Dakota / Tornado Warnings in 2007

Tornado Warning 6, NWS Grand Forks, ND

May 18, 2007Barnes County, North Dakota

NWS Grand Forks, ND issued this tornado warning at May 18, 2007, 8:20 PM CDT for Barnes County, North Dakota. It was in force for 55 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
May 18, 2007, 8:20 PM CDT (01:20 UTC)
Expired
May 18, 2007, 9:15 PM CDT
In force
55 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Barnes County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 65 km from the middle of the area, began a volume at 01:23 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
May 18, 9:14 PM CDTHAIL 12 E Oriska, ND

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
May 18, 3:43 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.3 hours before the alert went out and 216 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, Bismarck Municip, ND at 00:00Z on 2007-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 858 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, Bismarck Municip, ND at 00:00Z on 2007-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
858 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
2820 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KFGF 190120
TORFGF
NDC003-190215-
/O.NEW.KFGF.TO.W.0006.070519T0120Z-070519T0215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
820 PM CDT FRI MAY 18 2007

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 915 PM CDT

* AT 819 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 7 MILES
  NORTHEAST OF BALD HILL DAM...OR 12 MILES NORTH OF VALLEY CITY...
  MOVING TO THE SOUTHEAST AT 20 MPH.

* THE TORNADO WILL BE NEAR...
  ORISKA AT 900 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA.

LAT...LON 4721 9795 4709 9814 4686 9773 4710 9772

$$
DK
3 follow-up statements
000 
WWUS53 KFGF 190129
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
828 PM CDT FRI MAY 18 2007

NDC003-190215-
/O.CON.KFGF.TO.W.0006.000000T0000Z-070519T0215Z/
BARNES ND-
828 PM CDT FRI MAY 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHEASTERN BARNES COUNTY...

AT 820 PM CDT...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD NEAR LAKE 
ASHTABULA. THE FUNNEL CLOUD WAS LOCATED 7 MILES NORTHEAST OF BALD 
HILL DAM...OR 12 MILES NORTH OF VALLEY CITY...MOVING TO THE 
SOUTHEAST AT 20 MPH. 

* THE FUNNEL CLOUD WILL BE NEAR...
  ORISKA BY 905 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR NORTHWEST MINNESOTA.

LAT...LON 4721 9795 4709 9814 4686 9773 4710 9772

$$
DK
000 
WWUS53 KFGF 190152
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
851 PM CDT FRI MAY 18 2007

NDC003-190215-
/O.CON.KFGF.TO.W.0006.000000T0000Z-070519T0215Z/
BARNES ND-
851 PM CDT FRI MAY 18 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR
NORTHEASTERN BARNES COUNTY...

AT 850 PM CDT...A TRAINED WEATHER SPOTTER REPORTED A TORNADO 3.5 
MILES NORTHEAST OF VALLEY CITY. 

* THE FUNNEL CLOUD WILL BE NEAR...
  ORISKA BY 905 PM CDT...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR NORTHWESTERN MINNESOTA.

LAT...LON 4721 9795 4709 9814 4686 9773 4710 9772

$$
DK
000 
WWUS53 KFGF 190215
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
915 PM CDT FRI MAY 18 2007

NDC003-190225-
/O.EXP.KFGF.TO.W.0006.000000T0000Z-070519T0215Z/
BARNES ND-
915 PM CDT FRI MAY 18 2007

...THE TORNADO WARNING FOR NORTHEASTERN BARNES COUNTY EXPIRED AT 915
PM CDT...

DOPPLER RADAR INDICATED THE STORM WAS NO LONGER TORNADIC...AND SO 
THE WARNING WAS ALLOWED TO EXPIRE AT 915 PM CDT. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
FRIDAY EVENING FOR NORTHWESTERN MINNESOTA.

LAT...LON 4721 9795 4709 9814 4686 9773 4710 9772

$$
DK

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 8:02 PM CDTSevere Thunderstorm WarningFGFBenson, Ramsey58 min
May 18, 8:07 PM CDTSevere Thunderstorm WarningFGFCass53 min
May 18, 8:11 PM CDTSevere Thunderstorm WarningFGFBarnes64 min
May 18, 9:01 PM CDTSevere Thunderstorm WarningFGFCass59 min
May 18, 9:08 PM CDTFlash Flood WarningFGFCass12 hr
May 18, 9:16 PM CDTSevere Thunderstorm WarningFGFBarnes43 min
May 18, 10:17 PM CDTSevere Thunderstorm WarningFGFCass58 min
May 18, 11:25 PM CDTSevere Thunderstorm WarningFGFCass, Traill65 min
May 18, 11:53 PM CDTSevere Thunderstorm WarningFGFBarnes52 min

Nearby

Tornado Warnings in North Dakota, 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.