Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 67, NWS Grand Forks, ND

July 4, 2012Becker County, Hubbard County, Wadena County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 4, 2012, 8:12 PM CDT for Becker County, Hubbard County, Wadena County, Minnesota. It was in force for 63 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
Jul 4, 2012, 8:12 PM CDT (01:12 UTC)
Expired
Jul 4, 2012, 9:15 PM CDT
In force
63 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Becker County, MN, Hubbard County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 190 km from the middle of the area, began a volume at 01:13 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
Jul 4, 8:48 PM CDTHAIL 1.75Menahga, MNFELL BETWEEN 838 AND 848 PM CDT

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
Jul 4, 7:31 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 1.2 hours before the alert went out and 228 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 00:00Z on 2012-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 222 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, International Fa, MN at 00:00Z on 2012-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 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
222 J/kg
Mixed-layer CIN
-434 J/kg
Mixed-layer LCL
2128 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
406 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

489 
WUUS53 KFGF 050112
SVRFGF
MNC005-057-159-050215-
/O.NEW.KFGF.SV.W.0067.120705T0112Z-120705T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
812 PM CDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BECKER COUNTY IN NORTHWEST MINNESOTA...
  SOUTHERN HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA...
  NORTHWESTERN WADENA COUNTY IN CENTRAL MINNESOTA...

* UNTIL 915 PM CDT

* AT 808 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED 2 MILES
  NORTHEAST OF OSAGE...OR 30 MILES EAST OF DETROIT LAKES...MOVING TO
  THE SOUTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MIDWAY AROUND 820 PM CDT.
  EMMAVILLE AROUND 830 PM CDT.
  PARK RAPIDS AROUND 835 PM CDT.
  MENAHGA AND DORSET AROUND 845 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE HUBBARD...NEVIS...AKELEY AND HUNTERSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4661 9496 4685 9540 4724 9506 4702 9465
TIME...MOT...LOC 0111Z 298DEG 17KT 4694 9522
WIND...HAIL 60MPH 1.00IN

$$

JAR
1 follow-up statement
182 
WWUS53 KFGF 050146
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
846 PM CDT WED JUL 4 2012

MNC005-050155-
/O.CAN.KFGF.SV.W.0067.000000T0000Z-120705T0215Z/
BECKER MN-
846 PM CDT WED JUL 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BECKER COUNTY IN
NORTHWEST MINNESOTA IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4661 9496 4672 9516 4698 9517 4714 9490
      4702 9465
TIME...MOT...LOC 0145Z 298DEG 17KT 4686 9501

$$

MNC057-159-050215-
/O.CON.KFGF.SV.W.0067.000000T0000Z-120705T0215Z/
HUBBARD MN-WADENA MN-
846 PM CDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
WADENA COUNTY IN CENTRAL MINNESOTA...AND SOUTHERN HUBBARD COUNTY IN
NORTH CENTRAL MINNESOTA UNTIL 915 PM CDT...

AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORM WAS LOCATED 3 MILES
NORTHWEST OF HUBBARD...OR 38 MILES EAST OF DETROIT LAKES...MOVING TO
THE SOUTHEAST AT 20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HUBBARD AROUND 850 PM CDT.
  NEVIS AROUND 900 PM CDT.
  AKELEY AROUND 905 PM CDT.
  HUNTERSVILLE AROUND 910 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

&&

LAT...LON 4661 9496 4672 9516 4698 9517 4714 9490
      4702 9465
TIME...MOT...LOC 0145Z 298DEG 17KT 4686 9501
WIND...HAIL 60MPH 1.00IN

$$

JR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:52 PM CDTSpecial Weather StatementFGFHubbard38 min
Jul 4, 8:55 PM CDTTornado WarningFGFWadena50 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012

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.