Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 83, NWS Grand Forks, ND

July 22, 2012Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 22, 2012, 1:44 PM CDT for Lake of the Woods County, Minnesota. It was in force for 46 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: Jul 22, 2012, 1:44 PM CDT (18:44 UTC)
Expired: Jul 22, 2012, 2:30 PM CDT
In force: 46 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 239 km from the middle of the area, began a volume at 18:47 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

Time	Report	Where	Remark
Jul 22, 2:05 PM CDT	HAIL 1	8 N Pitt, MN	THE HAIL FELL AT THE SPORTSMANS LODGE.
Jul 22, 2:05 PM CDT	HAIL 1	Wheelers Point, MN	THE HAIL FELL AT THE SPORTSMANS LODGE.

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, 6.7 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1489 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 93 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.

213 
WUUS53 KFGF 221844
SVRFGF
MNC077-221930-
/O.NEW.KFGF.SV.W.0083.120722T1844Z-120722T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
144 PM CDT SUN JUL 22 2012

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

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

* UNTIL 230 PM CDT

* AT 142 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 8 MILES
  SOUTHEAST OF LONG POINT...OR 42 MILES EAST OF ROSEAU...MOVING TO
  THE EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF CENTRAL
  LAKE OF THE WOODS COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4881 9498 4899 9495 4898 9470 4888 9467
      4878 9468 4878 9466 4876 9467
TIME...MOT...LOC 1844Z 278DEG 26KT 4889 9482
WIND...HAIL 60MPH 1.00IN

$$

HOPPES

1 follow-up statement

916 
WWUS53 KFGF 221913
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
213 PM CDT SUN JUL 22 2012

MNC077-221930-
/O.CON.KFGF.SV.W.0083.000000T0000Z-120722T1930Z/
LAKE OF THE WOODS MN-
213 PM CDT SUN JUL 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL LAKE
OF THE WOODS COUNTY IN NORTH CENTRAL MINNESOTA UNTIL 230 PM CDT...

AT 210 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.  HAIL WAS VISIBLE ON WEB CAMS 
ALONG THE SOUTH SHORE. THE STORM WAS LOCATED 6 MILES NORTHEAST OF 
PITT...MOVING TO THE SOUTHEAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4881 9498 4899 9495 4898 9470 4888 9467
      4878 9468 4878 9466 4876 9467
TIME...MOT...LOC 1913Z 310DEG 31KT 4878 9464
WIND...HAIL 60MPH 1.00IN

$$
SPEICHER/HOPPES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 12:19 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	41 min
Jul 22, 1:23 PM CDT	Special Weather Statement	FGF	Lake of the Woods	67 min
Jul 22, 2:17 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	36 min
Jul 22, 6:42 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	34 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012 Every 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.