Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 75, NWS Twin Cities, MN

July 26, 2014Kanabec County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 2014, 6:11 PM CDT for Kanabec County, Minnesota. It was in force for 34 min. 5 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 26, 2014, 6:11 PM CDT (23:11 UTC)
Expired
Jul 26, 2014, 6:45 PM CDT
In force
34 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Kanabec County, MN

The radar

The Minneapolis radar (KMPX), 124 km from the middle of the area, began a volume at 23:14 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 26, 6:13 PM CDTHAIL 12 Nw Knife Lake, MNLATE REPORT.
Jul 26, 6:15 PM CDTHAIL 0.751 E Knife Lake, MN
Jul 26, 6:15 PM CDTHAIL 12 Nw Knife Lake, MNLATE REPORT.
Jul 26, 6:20 PM CDTTSTM WND DMG5 Nnw Mora, MN5 TO 6 INCH SMALL TREES BLOWN DOWN.
Jul 26, 6:25 PM CDTHAIL 0.884 Ese Knife Lake, MN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.2 hours before the alert went out and 124 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, Minneapolis, MN at 12:00Z on 2014-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 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, Minneapolis, MN at 12:00Z on 2014-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -115 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
45 J/kg
Mixed-layer CIN
-311 J/kg
Mixed-layer LCL
1495 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-115 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.8

Open this sounding in Storm Lab

The text

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

817 
WUUS53 KMPX 262311
SVRMPX
MNC065-262345-
/O.NEW.KMPX.SV.W.0075.140726T2311Z-140726T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
611 PM CDT SAT JUL 26 2014

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL KANABEC COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 645 PM CDT

* AT 610 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR KNIFE
  LAKE...AND MOVING EAST AT 35 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* LOCATIONS IMPACTED INCLUDE...
  MORA...KNIFE LAKE...MORA AIRPORT AND QUAMBA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4598 9313 4584 9313 4579 9315 4591 9347
      4598 9345 4598 9343 4602 9344 4604 9343
TIME...MOT...LOC 2312Z 287DEG 29KT 4597 9336

HAIL...1.00IN
WIND...<50MPH

$$

JLT
3 follow-up statements
339 
WWUS53 KMPX 262321
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
621 PM CDT SAT JUL 26 2014

MNC065-262345-
/O.CON.KMPX.SV.W.0075.000000T0000Z-140726T2345Z/
KANABEC MN-
621 PM CDT SAT JUL 26 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
KANABEC COUNTY UNTIL 645 PM CDT...

AT 619 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR KNIFE LAKE...
AND MOVING EAST AT 35 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
MORA AIRPORT AND QUAMBA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4581 9315 4594 9337 4601 9329 4598 9313
TIME...MOT...LOC 2321Z 287DEG 29KT 4595 9326

HAIL...1.00IN
WIND...<50MPH

$$

JLT
520 
WWUS53 KMPX 262329
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
629 PM CDT SAT JUL 26 2014

MNC065-262345-
/O.CON.KMPX.SV.W.0075.000000T0000Z-140726T2345Z/
KANABEC MN-
629 PM CDT SAT JUL 26 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
KANABEC COUNTY UNTIL 645 PM CDT...

AT 623 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MORA...AND 
MOVING EAST AT 35 MPH. THIS STORM ALSO HAS ROTATION. PLEASE BE AWARE 
THAT A TORNADO CAN FORM AT ANY MOMENT. 

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EASTERN KANABEC COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS THUNDERSTORM IS CAPABLE OF PRODUCING ALL TYPES OF SEVERE
WEATHER...INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE
WINDS AND TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...SUCH AS IN AN
INTERIOR ROOM...A BATHROOM OR CLOSET...OR BASEMENT.

&&

LAT...LON 4581 9315 4594 9337 4601 9329 4598 9313
TIME...MOT...LOC 2328Z 292DEG 31KT 4591 9317

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...<50MPH

$$

JLT
642 
WWUS53 KMPX 262338
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
638 PM CDT SAT JUL 26 2014

MNC065-262348-
/O.EXP.KMPX.SV.W.0075.000000T0000Z-140726T2345Z/
KANABEC MN-
638 PM CDT SAT JUL 26 2014

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL KANABEC COUNTY WILL
EXPIRE AT 645 PM CDT...

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

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN THE TWIN CITIES.

LAT...LON 4581 9315 4594 9337 4601 9329 4598 9313
TIME...MOT...LOC 2338Z 281DEG 26KT 4591 9309

$$

JLT

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 26, 3:04 PM CDTSpecial Weather StatementMPXTodd56 min
Jul 26, 3:26 PM CDTSpecial Weather StatementMPXLac qui Parle49 min
Jul 26, 3:32 PM CDTSpecial Weather StatementMPXTodd28 min
Jul 26, 3:46 PM CDTSpecial Weather StatementMPXMorrison29 min
Jul 26, 3:50 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd25 min
Jul 26, 4:21 PM CDTSpecial Weather StatementMPXMorrison39 min
Jul 26, 4:23 PM CDTSevere Thunderstorm WarningMPXMorrison17 min
Jul 26, 4:55 PM CDTSpecial Weather StatementMPXMille Lacs50 min
Jul 26, 5:16 PM CDTSevere Thunderstorm WarningMPXMille Lacs29 min
Jul 26, 5:44 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs31 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2014Every severe thunderstorm warning 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.