Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 176, NWS Twin Cities, MN

July 17, 2001Kanabec County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 17, 2001, 10:31 PM CDT for Kanabec County, Minnesota. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 17, 2001, 10:31 PM CDT (03:31 UTC)
Expired: Jul 17, 2001, 11:15 PM CDT
In force: 44 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Kanabec County, MN

The radar

The Minneapolis radar (KMPX), 126 km from the middle of the area, began a volume at 03:33 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 17, 7:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.5 hours before the alert went out and 126 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: 4439 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 180332
SVRMSP

MNC065-180415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1031 PM CDT TUE JUL 17 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 1115 PM CDT

* AT 1031 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...WITH      
  DAMAGING WINDS ALONG A LINE EXTENDING FROM 15 MILES NORTH OF       
  QUAMBA TO 15 MILES NORTHWEST OF OGILVIE...OR ALONG A LINE          
  EXTENDING FROM 15 MILES NORTHWEST OF HINCKLEY TO 17 MILES          
  NORTHWEST OF MORA...MOVING SOUTHEAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  QUAMBA.
  OGILVIE.
  MORA.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 4615 9336 4586 9352 4575 9332f 4605 9305
          4615 9311

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 8:10 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	35 min
Jul 17, 8:37 PM CDT	Tornado Warning	MPX	Morrison	23 min
Jul 17, 8:57 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	48 min
Jul 17, 10:05 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Todd	40 min
Jul 17, 10:25 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs	50 min
Jul 18, 12:55 AM CDT	Severe Thunderstorm Warning	MPX	Wright	50 min
Jul 18, 1:11 AM CDT	Severe Thunderstorm Warning	MPX	Carver	49 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Every severe thunderstorm warning in 2001

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.