Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 90, NWS Grand Forks, ND

July 22, 2012Becker County, Hubbard County, Wadena County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 22, 2012, 8:19 PM CDT for Becker County, Hubbard County, Wadena County, Minnesota. It was in force for 37 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 22, 2012, 8:19 PM CDT (01:19 UTC)
Expired
Jul 22, 2012, 8:56 PM CDT
In force
37 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

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

The radar

The Duluth radar (KDLH), 200 km from the middle of the area, began a volume at 01:18 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 22, 8:25 PM CDTHAIL 12 S Osage, MN

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 22, 3:25 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 1.3 hours before the alert went out and 223 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 2012-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1588 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 00:00Z on 2012-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1588 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
1243 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

028 
WUUS53 KFGF 230119
SVRFGF
MNC005-057-159-230215-
/O.NEW.KFGF.SV.W.0090.120723T0119Z-120723T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
819 PM CDT SUN JUL 22 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...
  NORTHERN WADENA COUNTY IN CENTRAL MINNESOTA...

* UNTIL 915 PM CDT

* AT 817 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
  STORM WAS LOCATED 4 MILES SOUTH OF OSAGE...OR 29 MILES EAST OF
  DETROIT LAKES...MOVING TO THE EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PARK RAPIDS AND MENAHGA AROUND 830 PM CDT.
  HUBBARD AND DORSET AROUND 840 PM CDT.
  HUNTERSVILLE AROUND 850 PM CDT.
  NEVIS AROUND 855 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE BADOURA AND CHAMBERLAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4680 9467 4680 9477 4669 9478 4672 9533
      4702 9534 4703 9465 4697 9465 4681 9465
TIME...MOT...LOC 0119Z 278DEG 26KT 4685 9522
WIND...HAIL <50MPH 1.00IN

$$

HOPKINS
2 follow-up statements
947 
WWUS53 KFGF 230134
SVSFGF

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

MNC005-230144-
/O.CAN.KFGF.SV.W.0090.000000T0000Z-120723T0215Z/
BECKER MN-
834 PM CDT SUN JUL 22 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 4680 9467 4680 9477 4669 9478 4671 9514
      4701 9514 4703 9465 4681 9465
TIME...MOT...LOC 0134Z 278DEG 26KT 4683 9506

$$

MNC057-159-230215-
/O.CON.KFGF.SV.W.0090.000000T0000Z-120723T0215Z/
HUBBARD MN-WADENA MN-
834 PM CDT SUN JUL 22 2012

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

AT 831 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THE
STORM WAS LOCATED 4 MILES WEST OF HUBBARD...OR 35 MILES EAST OF
DETROIT LAKES...MOVING TO THE EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HUBBARD AND DORSET AROUND 840 PM CDT.
  HUNTERSVILLE AROUND 850 PM CDT.
  NEVIS AROUND 855 PM CDT.
  BADOURA AND AKELEY AROUND 900 PM CDT.

THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE CHAMBERLAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4680 9467 4680 9477 4669 9478 4671 9514
      4701 9514 4703 9465 4681 9465
TIME...MOT...LOC 0134Z 278DEG 26KT 4683 9506
WIND...HAIL <50MPH 1.00IN

$$

HOPKINS
749 
WWUS53 KFGF 230156
SVSFGF

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

MNC057-159-230206-
/O.CAN.KFGF.SV.W.0090.000000T0000Z-120723T0215Z/
HUBBARD MN-WADENA MN-
856 PM CDT SUN JUL 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WADENA COUNTY IN
CENTRAL MINNESOTA...AND SOUTHERN HUBBARD COUNTY IN NORTH CENTRAL
MINNESOTA IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS 
THUNDERSTORM.

LAT...LON 4680 9467 4680 9477 4669 9478 4671 9514
      4701 9514 4703 9465 4681 9465
TIME...MOT...LOC 0156Z 278DEG 26KT 4681 9483

$$

HOPKINS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 7:21 PM CDTSpecial Weather StatementFGFBecker24 min
Jul 22, 7:31 PM CDTSevere Thunderstorm WarningFGFBecker, Clay, Otter Tail29 min
Jul 22, 8:08 PM CDTSpecial Weather StatementFGFBecker67 min
Jul 22, 8:15 PM CDTSevere Thunderstorm WarningFGFBecker, Otter Tail18 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.