Alert archive / Minnesota / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 64, NWS Twin Cities, MN

May 5, 2002Hennepin County, Ramsey County, Washington County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 5, 2002, 6:04 PM CDT for Hennepin County, Ramsey County, Washington County, Minnesota. It was in force for 56 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: May 5, 2002, 6:04 PM CDT (23:04 UTC)
Expired: May 5, 2002, 7:00 PM CDT
In force: 56 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Hennepin County, MN, Ramsey County, MN, Washington County, MN

The radar

The Minneapolis radar (KMPX), 27 km from the middle of the area, began a volume at 23:04 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
May 5, 6:30 PM CDT	Hail 0.75	Oakdale, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 5, 6:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.1 hours before the alert went out and 29 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: 1967 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 145 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 
WUUS53 KMPX 052304
SVRMSP
MNC053-123-163-050000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
601 PM CDT SUN MAY 5 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASHINGTON COUNTY IN EAST CENTRAL MINNESOTA
  HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA
  RAMSEY COUNTY IN EAST CENTRAL MINNESOTA

* UNTIL 700 PM CDT

* SEVERE THUNDERSTORMS CONTINUE ACROSS CENTRAL HENNEPIN COUNTY AND 
ARE MOVING INTO RAMSEY AND WASHINGTON COUNTIES.  THESE STORMS CAN 
PRODUCE LARGE HAIL AS WELL AS DAMAGING WINDS.  DIME SIZE HAIL WAS 
REPORTED AT BROKLYN PARK AT 550 PM AND AT 540 PM AT ELK RIVER.  
OTHER SEVERE STORMS IN WRIGHT COUNTY WILL MOVE INTO WESTERN HENNEPIN 
COUNTY.  QUARTER SIZE HAIL WAS REPORTED IN GOLDEN VALLEY AT 555 PM.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  MAPLEWOOD.
  PLYMOUTH.
  ROSEVILLE.
  MINNEAPOLIS
  ST PAUL
   
THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 4508 9374 4495 9357 4497 9308 4489 9294
          4514 9287 4502 9324

&

The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 4:15 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker, Stearns	45 min
May 5, 4:44 PM CDT	Severe Thunderstorm Warning	MPX	Renville	31 min
May 5, 4:57 PM CDT	Severe Thunderstorm Warning	MPX	Wright	33 min
May 5, 5:18 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, McLeod	42 min
May 5, 5:30 PM CDT	Severe Thunderstorm Warning	MPX	Wright	60 min
May 5, 5:42 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	48 min
May 5, 5:47 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Redwood, Sherburne, Yellow Medicine	43 min
May 5, 6:26 PM CDT	Severe Thunderstorm Warning	MPX	Renville	64 min
May 5, 6:52 PM CDT	Severe Thunderstorm Warning	MPX	Redwood	53 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.