Alert archive / Minnesota / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 187, NWS Twin Cities, MN

June 21, 2007Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 21, 2007, 5:15 PM CDT for Faribault County, Minnesota. It was in force for 30 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: Jun 21, 2007, 5:15 PM CDT (22:15 UTC)
Expired: Jun 21, 2007, 5:45 PM CDT
In force: 30 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

County Faribault County, MN

The radar

The Minneapolis radar (KMPX), 139 km from the middle of the area, began a volume at 22:18 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 21, 11:59 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.3 hours before the alert went out and 139 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: 2261 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: -101 m²/s²
0-3 km storm-relative helicity: 64 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 212215
SVRMPX
MNC043-212245-
/O.NEW.KMPX.SV.W.0187.070621T2215Z-070621T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
515 PM CDT THU JUN 21 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 545 PM CDT

* AT 514 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS
  STORM WAS LOCATED 5 MILES EAST OF BLUE EARTH...AND MOVING SOUTHEAST
  AT 30 MPH. DOPPLER RADAR HAS INDICATED THAT THE ROTATION WITHIN    
  THIS STORM HAS WEAKENED...HOWEVER IT IS STILL CAPABLE OF PRODUCING 
  STRONG STRAIGHT LINE WINDS.

* LOCATIONS IMPACTED INCLUDE...
  FROST...
  BRICELYN...

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4372 9391 4367 9416 4353 9412 4352 9378

$$

1 follow-up statement

000 
WWUS53 KMPX 212239
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
538 PM CDT THU JUN 21 2007

MNC043-212248-
/O.EXP.KMPX.SV.W.0187.000000T0000Z-070621T2245Z/
FARIBAULT MN-
538 PM CDT THU JUN 21 2007

...THE SEVERE THUNDERSTORM WARNING FOR FARIBAULT COUNTY EXPIRES AT
545 PM CDT...

SEVERE STORMS HAVE WEAKENED AND MOVED OUT OF THE COUNTY. GOLF BALL 
SIZED HAIL WAS REPORTED NORTH OF WINNEBAGO WITH THIS THUNDERSTORM. 
REPORT ANY SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT FOR RELAY TO 
THE NATIONAL WEATHER SERVICE. 

MORE THUNDERSTORMS WERE DEVELOPING IN THE AREA...AND WILL CONTINUE 
TO THROUGHOUT TONIGHT. REMAIN ALERT FOR POSSIBLE ADDITIONAL WARNINGS.

LAT...LON 4372 9391 4367 9416 4353 9412 4352 9378

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 3:13 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Jun 21, 3:13 PM CDT, 2 hours 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
313 PM CDT THU JUN 21 2007

.DISCUSSION...
THE NEAR TERM FORECAST CHALLENGE OVER THE NEXT TWO DAYS ARE SEVERE
WEATHER THREAT TONIGHT AND FRIDAY AND THE POTENTIAL FOR EXCESSIVE
RAINFALL OVER THE SOUTHERN TIER COUNTIES OF OUR CWA.
WEAK FRONTAL BOUNDARY OVER SOUTHWEST MN...NORTHEAST IOWA NEAR LOWER
LAKE MICHIGAN...WILL BE THE MAIN FOCUS FOR CONVECTION TONIGHT AND
FRIDAY WITH THE MAIN AREA OF CONCERN OVER EXTREME SOUTH CENTRAL MN.
THE FRONT IS FORECAST TO MEANDER OVER THE UPPER MIDWEST THROUGH
FRIDAY THEN LIFT WELL NORTH AS A WARM FRONT OVER THE REST OF
WEEKEND. THIS AFTERNOON...SFC DEWPOINTS HAVE POOLED IN THE UPPER 60S
AND LOWER 70S ALONG AND NEAR THE FRONTAL BOUNDARY. THE LATEST
SATELLITE IMAGERY SHOWED SEVERAL CLUSTER OF CELLS HAD DEVELOPED
ALONG THE IOWA/MINNESOTA BORDER. THE CONCERN...IS FOR LARGE HAIL AND
DAMAGING WINDS THIS AFTERNOON AND EVENING.  TRAINING OF TSRA OR
STORM BACKBUILDING OVR EXTREME SOUTH CENTRAL AND SOUTHWEST MN
OVERNIGHT. WEAK MID LEVEL TROUGH AS DEPICTED IN THE 700 MB PROGS
WILL SLOWLY ADVANCE EAST OVER THE UPPER MIDWEST.  ANOTHER ROUND OF
HEAVY RAINS IS LIKELY OVER SOUTHWEST AND SOUTH CENTRAL MN ON FRIDAY
AND FRIDAY NIGHT.

UPPER LEVEL HEIGHTS BUILD OVER THE UPPER MIDWEST OVER THE WEEKEND.
LONG MAX TEMPS EXPECTED TO WARM INTO THE UPPER 80S TO MIDDLE 90S BY
SUNDAY. AIRMASS SHOULD BE WELL CAPPED SUNDAY INTO TUESDAY.

&&

AVIATION.../18Z TAF CYCLE/
SHRA/TS WILL CONTINUE DEVELOPING ALONG/NORTH OF THE FRONTAL BOUNDARY
ACROSS SOUTHERN MN THIS AFTERNOON AND EVENING. EXPECT MAIN IMPACT TO
BE RWF TO MSP AND SOUTH...BETWEEN 21Z AND 02Z. E/SE SFC WINDS AROUND
10-15 MPH WILL PREVAIL DURING PERIOD.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
MN...NONE.
WI...NONE.
&&

Hazardous weather outlook, Jun 21, 5:22 AM CDT, 11 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
522 AM CDT THU JUN 21 2007

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
221030-
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK-
ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE-
522 AM CDT THU JUN 21 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND
SOUTH CENTRAL MINNESOTA...AND WEST CENTRAL WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SEVERE THUNDERSTORMS...WITH LARGE HAIL AND DAMAGING WINDS...ARE
POSSIBLE TODAY AND TONIGHT ACROSS PORTIONS OF CENTRAL AND SOUTH
CENTRAL MINNESOTA. THE GREATEST THREAT WILL BE ALONG AND SOUTH A
LINE FROM MONTEVIDEO THROUGH HUTCHINSON TO THE SOUTHERN TWIN
CITIES METROPOLITAN AREA. EXCESSIVE RAINFALL MAY OCCUR TONIGHT
WITH SOME OF THE STORMS FROM MONTEVIDEO THROUGH REDWOOD FALLS TO
ALBERT LEA ON SOUTHWARD.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

SEVERE THUNDERSTORMS ARE STILL POSSIBLE ON FRIDAY ACROSS PARTS OF
SOUTHERN MINNESOTA. THE GREATEST THREAT AT THIS TIME APPEARS TO BE
ALONG AND SOUTH OF A LINE FROM GRANITE FALLS TO OWATONNA. LARGE
HAIL...DAMAGING WINDS AND EXCESSIVE RAINFALL MAY OCCUR.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL BE NEEDED.

RAH

In the hours before

Local storm report, Jun 21, 4:08 PM CDT, 1 hour 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
408 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0334 PM     HAIL             10 NW LAKE CRYSTAL      44.21N 94.36W
06/21/2007  E1.00 INCH       BLUE EARTH         MN   TRAINED SPOTTER

&&

ELN

Local storm report, Jun 21, 4:29 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
429 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0428 PM     HAIL             3 W GOOD THUNDER        44.01N 94.13W
06/21/2007  E0.88 INCH       BLUE EARTH         MN   LAW ENFORCEMENT

            ON COUNTY ROAD 13

&&

ELN

Local storm report, Jun 21, 4:53 PM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
453 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     HAIL             BRICELYN                43.56N 93.81W
06/21/2007  E0.88 INCH       FARIBAULT          MN   AMATEUR RADIO

&&

ELN

Local storm report, Jun 21, 4:56 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
456 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0452 PM     HAIL             3 E GLENVILLE           43.57N 93.22W
06/21/2007  E0.75 INCH       FREEBORN           MN   FIRE DEPT/RESCUE

            INTERSECTION OF COUNTY ROADS 25 AND 13

&&

ELN

Local storm report, Jun 21, 5:09 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
509 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     HAIL             5 N WINNEBAGO           43.84N 94.17W
06/21/2007  E1.75 INCH       FARIBAULT          MN   LAW ENFORCEMENT

            NICKLE TO GOLF BALL SIZED HAIL. DAMAGE TO SQUAD CAR
            WINDOW.

&&

ELN

Local storm report, Jun 21, 5:15 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
515 PM CDT THU JUN 21 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0506 PM     HAIL             3 N BLUE EARTH          43.68N 94.10W
06/21/2007  E1.50 INCH       FARIBAULT          MN   TRAINED SPOTTER

&&

ELN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:11 PM CDT	Severe Thunderstorm Warning	MPX	Carver	49 min
Jun 20, 7:32 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	58 min
Jun 20, 7:57 PM CDT	Severe Thunderstorm Warning	MPX	Scott	48 min
Jun 20, 8:05 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	55 min
Jun 20, 8:22 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	38 min
Jun 20, 8:25 PM CDT	Severe Thunderstorm Warning	MPX	Rice	50 min
Jun 20, 8:27 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	48 min
Jun 20, 8:39 PM CDT	Severe Thunderstorm Warning	MPX	Scott	36 min
Jun 20, 8:52 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	53 min
Jun 20, 9:01 PM CDT	Severe Thunderstorm Warning	MPX	Steele	59 min
Jun 20, 9:12 PM CDT	Severe Thunderstorm Warning	MPX	Rice	63 min
Jun 20, 9:20 PM CDT	Severe Thunderstorm Warning	MPX	Washington	55 min
Jun 20, 9:35 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	55 min
Jun 20, 9:43 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	32 min
Jun 20, 9:51 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Ramsey	24 min
Jun 20, 9:57 PM CDT	Severe Thunderstorm Warning	MPX	Steele	33 min
Jun 20, 10:07 PM CDT	Severe Thunderstorm Warning	MPX	Washington	23 min
Jun 20, 10:08 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	37 min
Jun 20, 10:14 PM CDT	Severe Thunderstorm Warning	MPX	Rice	43 min
Jun 20, 10:16 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	44 min
Jun 20, 10:28 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele, Waseca	47 min
Jun 20, 10:29 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	46 min
Jun 20, 10:34 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Nicollet	56 min
Jun 20, 11:05 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	40 min
Jun 20, 11:22 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele, Waseca	38 min
Jun 20, 11:32 PM CDT	Tornado Warning	MPX	Freeborn	43 min
Jun 21, 12:49 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue	41 min
Jun 21, 1:02 AM CDT	Severe Thunderstorm Warning	MPX	Rice	28 min
Jun 21, 1:39 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	66 min
Jun 21, 1:57 AM CDT	Severe Thunderstorm Warning	MPX	Sibley	48 min
Jun 21, 2:02 AM CDT	Severe Thunderstorm Warning	MPX	Dakota	28 min
Jun 21, 2:43 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	32 min
Jun 21, 3:29 AM CDT	Severe Thunderstorm Warning	MPX	Rice	18 min
Jun 21, 3:35 AM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Waseca	40 min
Jun 21, 4:12 AM CDT	Severe Thunderstorm Warning	MPX	Steele, Waseca	48 min
Jun 21, 5:46 AM CDT	Severe Thunderstorm Warning	MPX	Steele	44 min
Jun 21, 3:15 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Nicollet	60 min
Jun 21, 3:24 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	66 min
Jun 21, 3:37 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi	18 min
Jun 21, 4:05 PM CDT	Tornado Warning	MPX	Blue Earth	25 min
Jun 21, 4:26 PM CDT	Severe Thunderstorm Warning	MPX	Martin	37 min
Jun 21, 4:27 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	63 min
Jun 21, 4:29 PM CDT	Tornado Warning	MPX	Blue Earth, Faribault	46 min
Jun 21, 4:54 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott, Sibley	66 min
Jun 21, 5:06 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	39 min
Jun 21, 5:10 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	30 min
Jun 21, 5:26 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	23 min
Jun 21, 5:33 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	25 min
Jun 21, 5:37 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Renville	53 min
Jun 21, 6:00 PM CDT	Severe Thunderstorm Warning	MPX	Sibley	60 min
Jun 21, 6:38 PM CDT	Severe Thunderstorm Warning	MPX	Nicollet	43 min
Jun 21, 6:46 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	29 min
Jun 21, 6:50 PM CDT	Severe Thunderstorm Warning	MPX	Brown	25 min
Jun 21, 6:59 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth	61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2007 Every severe thunderstorm warning in 2007

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.