Alert archive / Minnesota / Tornado Warnings in 2014

Tornado Warning 25, NWS Grand Forks, ND

September 19, 2014Kittson County, Minnesota; Pembina County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Sep 19, 2014, 5:45 PM CDT for Kittson County, Minnesota; Pembina County, North Dakota. It was in force for 45 min. 11 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
Sep 19, 2014, 5:45 PM CDT (22:45 UTC)
Expired
Sep 19, 2014, 6:30 PM CDT
In force
45 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

Counties Kittson County, MN, Pembina County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 159 km from the middle of the area, began a volume at 22:45 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
Sep 19, 5:58 PM CDTHAIL 1.254 Sw Pembina, NDCRACKED WINDSHIELD ON FIRE TRUCK AND SOME OF THE BUBBLE LIGHTS. LARGE AMOUNTS OF HAIL FROM NICKLES UP TO HALF DOLLAR...GROUND WHITE WITH HAIL.
Sep 19, 6:05 PM CDTTSTM WND DMG4 S Pembina, NDNUMEROUS LARGE 6 TO 8 INCH DIAMETER TREE BRANCHES BROKEN DOWN IN A FARMYARD AND EASTWARD TO THE RED RIVER.
Sep 19, 6:10 PM CDTHAIL 1.75Pembina, NDSIGNIFIACNT TREE AND PROPERTY DAMAGE REPORTED
Sep 19, 6:19 PM CDTTORNADO 21 Nw Northcote, MNTHIS TORNADO TRACKED FOR NEARLY 10 MILES TO AROUND 3 MILES SOUTH SOUTHWEST OF LANCASTER BY 640 PM CDT. THIS TORNADO SNAPPED OR UPROOTED NUMEROUS TREES ALONG ITS PATH. SEVERAL FARM OUTBUILDINGS...STEEL GRAIN BINS AND A STEEL POLE SHED WERE COMPLETELY DESTROYED.
Sep 19, 6:20 PM CDTHAIL 1.254 Se Humboldt, MNQUARTER TO HALF DOLLAR
Sep 19, 6:20 PM CDTHAIL 1.254 S Humboldt, MNQUARTER TO HALF DOLLAR
Sep 19, 6:22 PM CDTFUNNEL CLOUD8 Nw Hallock, MN
Sep 19, 6:27 PM CDTTSTM WND DMG5 Nne Hallock, MNSIGNIFICANT DAMAGE REPORTED TO A BARN... STEEL POLE SHED AND NUMEROUS TREES AT A FARMSTEAD LOCATED ABOUT 3 MILES EAST OF NORTHCOTE.
Sep 19, 6:27 PM CDTTSTM WND DMG5 Nne Hallock, MNSIGNIFICANT DAMAGE REPORTED TO A SHED... QUONSET AND NUMEROUS TREES AT A FARMSTEAD LOCATED ABOUT 3 MILES EAST OF NORTHCOTE.
Sep 19, 6:30 PM CDTHAIL 2.55 Nne Hallock, MNLARGE TORNADO VIEWED APPROACHING FARMSTEAD FROM WEST. TENNIS BALL SIZED HAIL FOLLOWED TORNADO.
Sep 19, 6:40 PM CDTTORNADO4 S Lancaster, MNCROSSING STATE HIGHWAY 59

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, 10.8 hours before the alert went out and 276 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 2014-09-19Temperature 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 2014-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 382 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
833 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
382 m²/s²
0-3 km storm-relative helicity
398 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

315 
WFUS53 KFGF 192245
TORFGF
MNC069-NDC067-192330-
/O.NEW.KFGF.TO.W.0025.140919T2245Z-140919T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
545 PM CDT FRI SEP 19 2014

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN KITTSON COUNTY IN NORTHWEST MINNESOTA...
  NORTHEASTERN PEMBINA COUNTY IN NORTHEAST NORTH DAKOTA...

* UNTIL 630 PM CDT

* AT 543 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES WEST OF PEMBINA...AND MOVING EAST AT 20
  MPH.

  HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

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

* THIS DANGEROUS STORM WILL BE NEAR...
  ST. VINCENT AND PEMBINA AROUND 600 PM CDT.
  NOYES AROUND 605 PM CDT.
  HUMBOLDT AROUND 620 PM CDT.
  ORLEANS AROUND 630 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 4900 9667 4876 9669 4893 9757 4901 9753
TIME...MOT...LOC 2245Z 285DEG 17KT 4899 9734

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

VOELKER
1 follow-up statement
473 
WWUS53 KFGF 192259
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
559 PM CDT FRI SEP 19 2014

MNC069-NDC067-192330-
/O.CON.KFGF.TO.W.0025.000000T0000Z-140919T2330Z/
KITTSON MN-PEMBINA ND-
559 PM CDT FRI SEP 19 2014

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN PEMBINA AND
NORTHWESTERN KITTSON COUNTIES UNTIL 630 PM CDT...

AT 557 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR PEMBINA...AND MOVING EAST AT 20 MPH.

HAZARD...TORNADO AND GOLF BALL SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
         LIKELY.

THE DANGEROUS STORM WILL BE NEAR...
  NOYES AROUND 605 PM CDT.
  HUMBOLDT AROUND 620 PM CDT.
  ORLEANS AROUND 630 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 4900 9743 4900 9667 4876 9669 4890 9742
TIME...MOT...LOC 2259Z 285DEG 17KT 4897 9724

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

VOELKER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 6:29 PM CDTTornado WarningFGFKittson33 min

Nearby

Tornado Warnings in Minnesota, 2014Tornado 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.