Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 64, NWS Grand Forks, ND

July 4, 2012Beltrami County, Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 4, 2012, 12:02 PM CDT for Beltrami County, Lake of the Woods County, Minnesota. It was in force for 43 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, 12:02 PM CDT (17:02 UTC)
Expired
Jul 4, 2012, 12:45 PM CDT
In force
43 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Beltrami County, MN, Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 213 km from the middle of the area, began a volume at 17:02 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, 12:25 PM CDTTSTM WND DMG5 Ne Waskish, MN10 INCH DIAMETER TREES KNOCKED DOWN.

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, 8:10 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 5.0 hours before the alert went out and 109 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 2012-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 113 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2012-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
113 J/kg
Mixed-layer CIN
-490 J/kg
Mixed-layer LCL
1552 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
101 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.

585 
WUUS53 KFGF 041702
SVRFGF
MNC007-077-041745-
/O.NEW.KFGF.SV.W.0064.120704T1702Z-120704T1745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1202 PM CDT WED JUL 4 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA...
  SOUTHEASTERN LAKE OF THE WOODS COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 1245 PM CDT

* AT 1158 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
  STORM WAS LOCATED 9 MILES SOUTHWEST OF CARP...OR 57 MILES SOUTHEAST
  OF ROSEAU...MOVING TO THE EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTH
  CENTRAL BELTRAMI AND SOUTHEASTERN LAKE OF THE WOODS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4823 9502 4852 9509 4857 9442 4825 9441
      4818 9442
TIME...MOT...LOC 1702Z 271DEG 29KT 4838 9468
WIND...HAIL <50MPH 1.00IN

$$
SPEICHER
3 follow-up statements
082 
WWUS53 KFGF 041712
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1212 PM CDT WED JUL 4 2012

MNC007-077-041745-
/O.CON.KFGF.SV.W.0064.000000T0000Z-120704T1745Z/
LAKE OF THE WOODS MN-BELTRAMI MN-
1212 PM CDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
BELTRAMI AND SOUTHEASTERN LAKE OF THE WOODS COUNTIES IN NORTH CENTRAL
MINNESOTA UNTIL 1245 PM CDT...

AT 1207 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THE STORM WAS LOCATED 11 MILES SOUTH OF CARP MOVING TO THE EAST AT 
35 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHEASTERN BELTRAMI AND
  NORTHEASTERN BELTRAMI COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4823 9497 4853 9501 4857 9442 4825 9441
      4818 9442
TIME...MOT...LOC 1712Z 267DEG 29KT 4834 9459
WIND...HAIL <50MPH 1.50IN

$$
SPEICHER
733 
WWUS53 KFGF 041733
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1233 PM CDT WED JUL 4 2012

MNC007-077-041745-
/O.CON.KFGF.SV.W.0064.000000T0000Z-120704T1745Z/
LAKE OF THE WOODS MN-BELTRAMI MN-
1233 PM CDT WED JUL 4 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
BELTRAMI AND SOUTHEASTERN LAKE OF THE WOODS COUNTIES IN NORTH CENTRAL
MINNESOTA UNTIL 1245 PM CDT...

AT 1230 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
THE STORM WAS LOCATED 11 MILES NORTH OF WASKISH...OR 59 MILES NORTH
OF BEMIDJI...MOVING TO THE EAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME SOUTHEASTERN LAKE OF THE WOODS AND
  EXTREME SOUTHEASTERN LAKE OF THE WOODS COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4821 9470 4855 9471 4857 9442 4825 9441
      4818 9442
TIME...MOT...LOC 1733Z 265DEG 27KT 4831 9453
WIND...HAIL <50MPH 1.50IN

$$
SPEICHER
410 
WWUS53 KFGF 041745
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1245 PM CDT WED JUL 4 2012

MNC007-077-041755-
/O.EXP.KFGF.SV.W.0064.000000T0000Z-120704T1745Z/
LAKE OF THE WOODS MN-BELTRAMI MN-
1245 PM CDT WED JUL 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BELTRAMI AND
SOUTHEASTERN LAKE OF THE WOODS COUNTIES IN NORTH CENTRAL MINNESOTA
HAS EXPIRED...

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

LAT...LON 4821 9470 4855 9471 4857 9442 4825 9441
      4818 9442
TIME...MOT...LOC 1733Z 265DEG 27KT 4814 9451

$$
SPEICHER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 4:12 AM CDTHeat AdvisoryFGFBecker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more18 hr
Jul 4, 7:54 AM CDTSevere Thunderstorm WarningFGFKittson, Marshall66 min
Jul 4, 8:58 AM CDTSevere Thunderstorm WarningFGFKittson, Marshall, Roseau62 min
Jul 4, 9:56 AM CDTSevere Thunderstorm WarningFGFMarshall, Roseau64 min
Jul 4, 10:08 AM CDTSevere Thunderstorm WarningFGFPolk67 min
Jul 4, 10:36 AM CDTSevere Thunderstorm WarningFGFMarshall, Pennington, Polk54 min
Jul 4, 11:27 AM CDTSpecial Weather StatementFGFPennington63 min
Jul 4, 1:01 PM CDTSevere Thunderstorm WarningFGFBeltrami59 min
Jul 4, 1:52 PM CDTSevere Thunderstorm WarningFGFBeltrami24 min
Jul 4, 4:55 PM CDTSpecial Weather StatementFGFHubbard50 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.