Alert archive / Minnesota / Tornado Warnings in 2008

Tornado Warning 42, NWS Twin Cities, MN

July 19, 2008Isanti County, Mille Lacs County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jul 19, 2008, 2:16 PM CDT for Isanti County, Mille Lacs County, Minnesota. It was in force for 44 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 19, 2008, 2:16 PM CDT (19:16 UTC)
Expired
Jul 19, 2008, 3:00 PM CDT
In force
44 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Isanti County, MN, Mille Lacs County, MN

The radar

The Minneapolis radar (KMPX), 83 km from the middle of the area, began a volume at 19:17 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 19, 2:45 PM CDTTSTM WND DMGCambridge, MNTWO TREES DOWN.

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, 7.3 hours before the alert went out and 83 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 2008-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2008-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1477 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
95 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.

000 
WFUS53 KMPX 191916
TORMPX
MNC059-095-192000-
/O.NEW.KMPX.TO.W.0042.080719T1916Z-080719T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
216 PM CDT SAT JUL 19 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL MILLE LACS COUNTY IN EAST CENTRAL MINNESOTA...
  NORTHERN ISANTI COUNTY IN EAST CENTRAL MINNESOTA...

* UNTIL 300 PM CDT

* AT 212 PM CDT...RADAR INDICATED A DEVELOPING TORNADO. THE MOST
  DANGEROUS PART OF THE STORM WAS 2 MILES WEST OF PRINCETON...OR
  ABOUT 7 MILES EAST OF GLENDORADO...AND MOVING EAST AT 32 MPH.

* SOME LOCATIONS INCLUDE...
  DALBO...
  CAMBRIDGE...
  GRANDY...
  STANCHFIELD...
  BRAHAM...

WHEN A TORNADO WARNING IS ISSUED BASED ON RADAR...IT MEANS THAT
STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY ALREADY
BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4556 9314 4552 9317 4555 9351 4556 9352
      4555 9358 4556 9370 4567 9373 4573 9314
TIME...MOT...LOC 1916Z 265DEG 28KT 4558 9359

$$

LS
3 follow-up statements
000 
WWUS53 KMPX 191929
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
229 PM CDT SAT JUL 19 2008

MNC059-095-192000-
/O.CON.KMPX.TO.W.0042.000000T0000Z-080719T2000Z/
MILLE LACS MN-ISANTI MN-
229 PM CDT SAT JUL 19 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR NORTHERN
ISANTI AND SOUTHEASTERN MILLE LACS COUNTIES...

AT 225 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION.  THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 7 MILES
SOUTH OF DALBO...AND MOVING EAST AT 37 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STANCHFIELD...GRANDY...
DALBO...CAMBRIDGE AND BRAHAM.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN.

LAT...LON 4556 9314 4552 9317 4555 9351 4556 9352
      4555 9358 4556 9356 4569 9357 4569 9347
      4573 9314
TIME...MOT...LOC 1929Z 267DEG 32KT 4559 9343

$$

LS
000 
WWUS53 KMPX 191938
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
238 PM CDT SAT JUL 19 2008

MNC095-191948-
/O.CAN.KMPX.TO.W.0042.000000T0000Z-080719T2000Z/
MILLE LACS MN-
238 PM CDT SAT JUL 19 2008

...THE TORNADO WARNING FOR SOUTHEASTERN MILLE LACS COUNTY IS
CANCELLED...

RADAR INDICATED THAT THE SEVERE STORM HAD MOVED OUT OF THE WARNED 
AREA. THEREFORE...THE TORNADO WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN.

LAT...LON 4560 9314 4559 9315 4555 9315 4552 9317
      4556 9345 4569 9347 4573 9314
TIME...MOT...LOC 1938Z 267DEG 32KT 4559 9332

$$

MNC059-192000-
/O.CON.KMPX.TO.W.0042.000000T0000Z-080719T2000Z/
ISANTI MN-
238 PM CDT SAT JUL 19 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR NORTHERN
ISANTI COUNTY...

AT 234 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION.  THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 7 MILES
WEST OF CAMBRIDGE...OR ABOUT 7 MILES SOUTHEAST OF DALBO...AND MOVING
EAST AT 37 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE STANCHFIELD...GRANDY...
DALBO...CAMBRIDGE AND BRAHAM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN.

LAT...LON 4560 9314 4559 9315 4555 9315 4552 9317
      4556 9345 4569 9347 4573 9314
TIME...MOT...LOC 1938Z 267DEG 32KT 4559 9332

$$

LS
000 
WWUS53 KMPX 192002
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
302 PM CDT SAT JUL 19 2008

MNC059-192012-
/O.EXP.KMPX.TO.W.0042.000000T0000Z-080719T2000Z/
ISANTI MN-
302 PM CDT SAT JUL 19 2008

...THE TORNADO WARNING FOR NORTHERN ISANTI COUNTY EXPIRES AT 300 PM
CDT...

TORNADIC SEVERE STORMS WERE ABOUT TO MOVE OUT OF THE COUNTY.
HOWEVER...MORE THUNDERSTORMS WERE DEVELOPING IN THE AREA...REMAIN
ALERT FOR ADDITIONAL WARNINGS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING
FOR SOUTHEASTERN MINNESOTA AND NORTHWESTERN WISCONSIN.

LAT...LON 4560 9314 4559 9315 4555 9315 4552 9317
      4556 9345 4569 9347 4573 9314
TIME...MOT...LOC 1938Z 267DEG 32KT 4559 9332

$$

LS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 1:59 PM CDTSevere Thunderstorm WarningMPXSherburne46 min
Jul 19, 2:02 PM CDTTornado WarningMPXSherburne43 min
Jul 19, 2:24 PM CDTSevere Thunderstorm WarningMPXAnoka, Isanti51 min
Jul 19, 2:35 PM CDTTornado WarningMPXAnoka, Isanti, Sherburne40 min
Jul 19, 2:59 PM CDTTornado WarningMPXChisago, Isanti20 min
Jul 19, 3:07 PM CDTTornado WarningMPXAnoka, Chisago, Isanti, Washington38 min
Jul 19, 4:11 PM CDTFlash Flood WarningMPXMartin2 hr
Jul 19, 6:03 PM CDTFlash Flood WarningMPXFreeborn2 hr

Nearby

Tornado Warnings in Minnesota, 2008Every tornado warning in 2008Tornadoes in 2008

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.