Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 78, NWS Twin Cities, MN

July 25, 2000Blue Earth County, Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 25, 2000, 11:25 PM CDT for Blue Earth County, Faribault County, Minnesota. It was in force for 50 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 25, 2000, 11:25 PM CDT (04:25 UTC)
Expired: Jul 26, 2000, 12:15 AM CDT
In force: 50 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

Counties Blue Earth County, MN, Faribault County, MN

The radar

The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 04:24 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
Jul 26, 12:00 AM CDT	Hail 0.75	Amboy, MN
Jul 26, 12:00 AM CDT	Hail 1.75	Easton, 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
Jul 25, 8:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.4 hours before the alert went out and 115 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: 1668 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1176 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 260426
SVRMSP
MNC013-043-260515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1125 PM CDT TUE JUL 25 2000

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 1215 AM CDT

* AT 1125 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES NORTHWEST OF DELAVAN...OR ABOUT 12
  MILES NORTH OF BLUE EARTH...MOVING SOUTHEAST AT 30 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  AMBOY
  MINNESOTA LAKE
  WINNEBAGO
  FROST
  MAPLETON

THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 7:01 PM CDT	Tornado Warning	MPX	Benton, Mille Lacs	44 min
Jul 25, 7:09 PM CDT	Tornado Warning	MPX	Renville	36 min
Jul 25, 7:29 PM CDT	Tornado Warning	MPX	McLeod, Renville, Sibley	46 min
Jul 25, 7:56 PM CDT	Tornado Warning	MPX	Carver, Wright	49 min
Jul 25, 8:13 PM CDT	Tornado Warning	MPX	Nicollet, Sibley	47 min
Jul 25, 8:25 PM CDT	Tornado Warning	MPX	Hennepin	50 min
Jul 25, 8:53 PM CDT	Tornado Warning	MPX	Blue Earth, Brown, Nicollet	67 min
Jul 25, 9:13 PM CDT	Tornado Warning	MPX	Hennepin	32 min
Jul 25, 9:59 PM CDT	Tornado Warning	MPX	Blue Earth	31 min
Jul 25, 10:23 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Watonwan	67 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2000 Every severe thunderstorm warning in 2000

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.