Alert archive / Minnesota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 73, NWS Twin Cities, MN

July 26, 2014Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 26, 2014, 5:16 PM CDT for Mille Lacs County, Minnesota. It was in force for 29 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, 5:16 PM CDT (22:16 UTC)
Expired
Jul 26, 2014, 5:45 PM CDT
In force
29 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Mille Lacs County, MN

The radar

The Duluth radar (KDLH), 134 km from the middle of the area, began a volume at 22:16 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, 5:18 PM CDTHAIL 11 Nw Onamia, MN
Jul 26, 5:18 PM CDTHAIL 1Nw Onamia, MN
Jul 26, 5:18 PM CDTHAIL 1Onamia, MN1 INCH HAIL ALONG HWY 169 NEAR ONAMIA
Jul 26, 5:30 PM CDTHAIL 11 N Onamia, MN
Jul 26, 5:45 PM CDTHAIL 12 S Onamia, MNLATE REPORT.

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, 10.3 hours before the alert went out and 138 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.

489 
WUUS53 KMPX 262216
SVRMPX
MNC095-262245-
/O.NEW.KMPX.SV.W.0073.140726T2216Z-140726T2245Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 545 PM CDT

* AT 513 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MILLE LACS
  KATHIO STATE PARK...AND MOVING EAST AT 30 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
  MILLE LACS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...BAYVIEW...
  WAHKON AND ISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4615 9343 4598 9344 4605 9380 4614 9380
TIME...MOT...LOC 2216Z 274DEG 28KT 4611 9370

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

$$

JLT
2 follow-up statements
519 
WWUS53 KMPX 262223
SVSMPX

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

MNC095-262245-
/O.CON.KMPX.SV.W.0073.000000T0000Z-140726T2245Z/
MILLE LACS MN-
523 PM CDT SAT JUL 26 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN MILLE
LACS COUNTY UNTIL 545 PM CDT...

AT 518 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ONAMIA...AND
MOVING EAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
MILLE LACS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...WAHKON AND
ISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4615 9343 4598 9344 4605 9380 4614 9380
TIME...MOT...LOC 2223Z 274DEG 28KT 4611 9362

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

$$

JLT
505 
WWUS53 KMPX 262232
SVSMPX

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

MNC095-262245-
/O.CON.KMPX.SV.W.0073.000000T0000Z-140726T2245Z/
MILLE LACS MN-
532 PM CDT SAT JUL 26 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN MILLE
LACS COUNTY UNTIL 545 PM CDT...

AT 526 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ONAMIA...AND 
MOVING EAST AT 30 MPH. ADDITIONAL THUNDERSTORMS WERE MOVING EASTWARD 
ACROSS NORTHEAST MORRISON COUNTY WHICH WILL MOVE INTO THE NORTHERN 
MILLE LACS COUNTY WARNED AREA. THIS STORM HAS THE CAPABILITY OF 
PRODUCING QUARTER SIZE HAIL ALSO. 

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
MILLE LACS COUNTY...INCLUDING THE FOLLOWING LOCATIONS...ISLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4615 9343 4598 9344 4605 9380 4614 9380
TIME...MOT...LOC 2232Z 278DEG 26KT 4609 9355

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

$$

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, 5:44 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs31 min
Jul 26, 6:11 PM CDTSevere Thunderstorm WarningMPXKanabec34 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.