Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 264, NWS Twin Cities, MN

August 3, 2008Mille Lacs County, Morrison County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2008, 1:54 PM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 3, 2008, 1:54 PM CDT (18:54 UTC)
Expired
Aug 3, 2008, 2:42 PM CDT
In force
48 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Mille Lacs County, MN, Morrison County, MN

The radar

The Minneapolis radar (KMPX), 138 km from the middle of the area, began a volume at 19:02 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.9 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 2008-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2008-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 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
1041 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 031854
SVRMPX
MNC095-097-032000-
/O.NEW.KMPX.SV.W.0264.080803T1854Z-080803T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
154 PM CDT SUN AUG 3 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 300 PM CDT

* AT 153 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
  THIS STORM WAS LOCATED 4 MILES WEST OF HILLMAN...OR ABOUT 19 MILES
  EAST OF LITTLE FALLS...AND MOVING NORTHEAST AT 19 MPH.

* SOME LOCATIONS INCLUDE...
  HILLMAN...
  VINELAND...
  ONAMIA...
  WAHKON...
  ISLE...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

LAT...LON 4624 9344 4599 9344 4598 9352 4583 9400
      4602 9418 4615 9382 4623 9379
TIME...MOT...LOC 1854Z 242DEG 17KT 4600 9396

$$
2 follow-up statements
000 
WWUS53 KMPX 031916
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
216 PM CDT SUN AUG 3 2008

MNC097-031926-
/O.CAN.KMPX.SV.W.0264.000000T0000Z-080803T2000Z/
MORRISON MN-
216 PM CDT SUN AUG 3 2008

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MORRISON COUNTY
IS CANCELLED...

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

LAT...LON 4624 9344 4599 9344 4598 9352 4591 9375
      4598 9376 4599 9380 4615 9381 4623 9379
TIME...MOT...LOC 1916Z 251DEG 31KT 4599 9361

$$

MNC095-032000-
/O.CON.KMPX.SV.W.0264.000000T0000Z-080803T2000Z/
MILLE LACS MN-
216 PM CDT SUN AUG 3 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM CDT
FOR NORTHERN MILLE LACS COUNTY...

AT 211 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF
60 MPH.  THE SEVERE STORM WAS LOCATED 6 MILES SOUTH OF ONAMIA...AND
MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BAYVIEW...WAHKON...VINELAND...
ONAMIA AND ISLE.

PREPARE IMMEDIATELY FOR DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

LAT...LON 4624 9344 4599 9344 4598 9352 4591 9375
      4598 9376 4599 9380 4615 9381 4623 9379
TIME...MOT...LOC 1916Z 251DEG 31KT 4599 9361

$$
000 
WWUS53 KMPX 031942
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
242 PM CDT SUN AUG 3 2008

MNC095-031952-
/O.CAN.KMPX.SV.W.0264.000000T0000Z-080803T2000Z/
MILLE LACS MN-
242 PM CDT SUN AUG 3 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MILLE LACS COUNTY IS
CANCELLED...

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

LAT...LON 4624 9344 4599 9344 4598 9352 4591 9375
      4598 9376 4599 9380 4615 9381 4623 9379
TIME...MOT...LOC 1942Z 251DEG 31KT 4606 9330

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 11:12 AM CDTSevere Thunderstorm WarningMPXSherburne, Stearns, Wright48 min
Aug 3, 11:32 AM CDTSevere Thunderstorm WarningMPXChisago, Isanti, Mille Lacs, Sherburne43 min
Aug 3, 1:17 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Morrison, Sherburne, Stearns58 min
Aug 3, 1:22 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti, Kanabec53 min
Aug 3, 2:25 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Stearns65 min
Aug 3, 3:26 PM CDTSevere Thunderstorm WarningMPXBenton, Mille Lacs, Sherburne, Stearns39 min
Aug 3, 4:29 PM CDTSevere Thunderstorm WarningMPXChisago, Isanti20 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.