Alert archive / North Dakota / Tornado Warnings in 2014

Tornado Warning 4, NWS Grand Forks, ND

June 4, 2014Towner County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 4, 2014, 7:32 PM CDT for Towner County, North Dakota. It was in force for 28 min. 2 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 4, 2014, 7:32 PM CDT (00:32 UTC)
Expired
Jun 4, 2014, 8:00 PM CDT
In force
28 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Towner County, ND

The radar

The Minot AFB radar (KMBX), 124 km from the middle of the area, began a volume at 00:35 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 4, 7:55 PM CDTHAIL 1.5Hansboro, NDVIA KVLY FARGO FACEBOOK.
Jun 4, 8:05 PM CDTHAIL 13 E Hansboro, NDHAIL RANGED IN SIZE FROM PEA TO QUARTER.

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.5 hours before the alert went out and 261 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 2014-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 828 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 2014-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
828 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1626 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

985 
WFUS53 KFGF 050032
TORFGF
NDC095-050100-
/O.NEW.KFGF.TO.W.0004.140605T0032Z-140605T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
732 PM CDT WED JUN 4 2014

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN TOWNER COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 800 PM CDT

* AT 729 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR HANSBORO...AND MOVING NORTHEAST AT 30 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

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

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
  TOWNER COUNTY.

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 4899 9954 4900 9952 4901 9903 4890 9920
      4881 9954
TIME...MOT...LOC 0032Z 237DEG 26KT 4893 9942

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

HOPKINS

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, 7:59 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, 3:59 PM CDTTornado WarningFGFCass30 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.