Alert archive / North Dakota / Tornado Warnings in 2014

Tornado Warning 5, NWS Grand Forks, ND

June 5, 2014Cass County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 5, 2014, 3:59 PM CDT for Cass County, North Dakota. It was in force for 30 min. 3 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 5, 2014, 3:59 PM CDT (20:59 UTC)
Expired
Jun 5, 2014, 4:29 PM CDT
In force
30 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Cass County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 69 km from the middle of the area, began a volume at 20:59 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 5, 4:00 PM CDTHAIL 0.5Casselton, NDVIA INTERNET
Jun 5, 4:00 PM CDTHAIL 0.751 S Casselton, NDWALL CLOUD AND ROTATION PASSED OVER D.O.T. SHOP NO FUNNEL OR TOUCHDOWN OBSERVED
Jun 5, 4:10 PM CDTHAIL 1.5Casselton, NDMOSTLY 1 INCH SIZED HAIL...BUT A FEW BIGGER STONES

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 9.0 hours before the alert went out and 243 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, Aberdeen, SD at 12:00Z on 2014-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 575 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, Aberdeen, SD at 12:00Z on 2014-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
575 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
46 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.

660 
WFUS53 KFGF 052059
TORFGF
NDC017-052145-
/O.NEW.KFGF.TO.W.0005.140605T2059Z-140605T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
359 PM CDT THU JUN 5 2014

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL CASS COUNTY IN SOUTHEAST NORTH DAKOTA...

* UNTIL 445 PM CDT

* AT 354 PM CDT...DOPPLER RADAR INDICATE A POSSIBLE TORNADO NEAR     
  CASSELTON...AND MOVING SOUTHEAST AT 10 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.

* THIS TORNADIC STORM WILL BE NEAR...
  CASSELTON AROUND 420 PM CDT.
  MAPLETON AROUND 445 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.

&&

LAT...LON 4689 9700 4684 9721 4694 9738 4700 9729
TIME...MOT...LOC 2058Z 307DEG 8KT 4693 9726

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JAM
1 follow-up statement
471 
WWUS53 KFGF 052129
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
429 PM CDT THU JUN 5 2014

NDC017-052138-
/O.CAN.KFGF.TO.W.0005.000000T0000Z-140605T2145Z/
CASS ND-
429 PM CDT THU JUN 5 2014

...THE TORNADO WARNING FOR CENTRAL CASS COUNTY IN SOUTHEAST NORTH
DAKOTA IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN GRAND FORKS.

LAT...LON 4689 9700 4684 9721 4694 9738 4700 9729
TIME...MOT...LOC 2128Z 307DEG 8KT 4689 9718

$$

JM/GUST

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 7:06 PM CDTSpecial Weather StatementFGFTowner54 min
Jun 4, 7:32 PM CDTTornado WarningFGFTowner28 min
Jun 4, 7:59 PM CDTSevere Thunderstorm WarningFGFCavalier, Towner61 min
Jun 5, 12:47 AM CDTAreal Flood AdvisoryFGFCavalier, Ramsey, Walsh9 hr
Jun 5, 3:51 PM CDTSevere Thunderstorm WarningFGFSargent39 min
Jun 5, 4:07 PM CDTTornado WarningFGFSargent38 min
Jun 5, 4:48 PM CDTTornado WarningFGFCass, Ransom, Richland30 min

Nearby

Tornado Warnings in North Dakota, 2014Every tornado warning in 2014Tornadoes in 2014

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.