Alert archive / Minnesota / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 48, NWS Twin Cities, MN

June 17, 2013Chisago County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 17, 2013, 12:29 PM CDT for Chisago County, Minnesota. It was in force for 46 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: Jun 17, 2013, 12:29 PM CDT (17:29 UTC)
Expired: Jun 17, 2013, 1:15 PM CDT
In force: 46 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Chisago County, MN

The radar

The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 17:31 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
Jun 17, 12:40 PM CDT	HAIL 0.75	7 E North Branch, MN	FELL FOR APPROXIMATELY 10 MINUTES

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, 5.5 hours before the alert went out and 96 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: 1969 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 32 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.

081 
WUUS53 KMPX 171729
SVRMPX
MNC025-171815-
/O.NEW.KMPX.SV.W.0048.130617T1729Z-130617T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1229 PM CDT MON JUN 17 2013

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 115 PM CDT

* AT 1226 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 16 MILES EAST OF
  CAMBRIDGE...AND MOVING SOUTHEAST AT 15 MPH.

  HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
           ROOFS...SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE...
  LINDSTROM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4556 9287 4557 9279 4555 9274 4547 9269
      4544 9265 4537 9287 4556 9300 4558 9289
TIME...MOT...LOC 1730Z 325DEG 13KT 4554 9289

HAIL...1.00IN
WIND...60MPH

$$

BORGHOFF

2 follow-up statements

123 
WWUS53 KMPX 171753
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1253 PM CDT MON JUN 17 2013

MNC025-171815-
/O.CON.KMPX.SV.W.0048.000000T0000Z-130617T1815Z/
CHISAGO MN-
1253 PM CDT MON JUN 17 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
CHISAGO COUNTY UNTIL 115 PM CDT...

AT 1252 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 14 MILES WEST OF
BALSAM LAKE...AND MOVING SOUTHEAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4555 9274 4547 9269 4544 9265 4539 9282
      4547 9285 4553 9282
TIME...MOT...LOC 1754Z 308DEG 21KT 4546 9273

HAIL...1.00IN
WIND...60MPH

$$
BORGHOFF

725 
WWUS53 KMPX 171808
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
108 PM CDT MON JUN 17 2013

MNC025-171818-
/O.EXP.KMPX.SV.W.0048.000000T0000Z-130617T1815Z/
CHISAGO MN-
108 PM CDT MON JUN 17 2013

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHISAGO COUNTY
WILL EXPIRE AT 115 PM CDT...

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

LAT...LON 4555 9274 4547 9269 4544 9265 4539 9282
      4547 9285 4553 9282
TIME...MOT...LOC 1808Z 308DEG 21KT 4541 9264

$$
BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 12:18 PM CDT	Special Weather Statement	MPX	Chisago	27 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2013 Every severe thunderstorm warning in 2013

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.