Alert archive / Minnesota / Special Weather Statements in 2009

Special Weather Statement, NWS Twin Cities, MN

July 22, 20099 counties in Minnesota

NWS Twin Cities, MN issued this special weather statement at Jul 22, 2009, 1:37 PM CDT for 9 counties in Minnesota. It was in force for 53 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: Jul 22, 2009, 1:37 PM CDT (18:37 UTC)
Expired: Jul 22, 2009, 2:30 PM CDT
In force: 53 min
Issued by: NWS Twin Cities, MN

Counties Carver County, MN, Dakota County, MN, Hennepin County, MN, Le Sueur County, MN, McLeod County, MN, Nicollet County, MN, Scott County, MN, Sibley County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 8 km from the middle of the area, began a volume at 18:39 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, 6.6 hours before the alert went out and 8 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: 257 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 36 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 22, 12:42 PM CDT, 55 minutes earlier.

Area forecast discussion, Jul 22, 12:42 PM CDT, 55 minutes before

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Hazardous weather outlook, Jul 22, 12:14 PM CDT, 1 hour 23 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1214 PM CDT WED JUL 22 2009

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
231200-
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHEXT SEVERAL DAYS...ALONG
WITH AGAIN EARLY NEXT WEEK. THE HIGHEST CHANCE OF ORGANIZED AND
WIDESPREAD THUNDERSTORMS WILL OCCUR LATE THURSDAY NIGHT AND INTO
FRIDAY. AT THIS TIME...THE THREAT FOR WIDESPREAD HAZARDOUS WEATHER
IS LOW.

.SPOTTER INFORMATION STATEMENT...

ALTHOUGH THE SEVERE THUNDERSTORM THREAT IS MARGINAL
THIS AFTERNOON AND EARLY EVENING...SPOTTERS SHOULD REMAIN ALERT
FOR STRONGER THUNDERSTORMS AND BE READY TO REPORT HAIL.

In the hours before

Local storm report, Jul 22, 9:16 AM CDT, 4 hours 21 minutes before

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Special weather statement, Jul 22, 1:24 PM CDT, 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
124 PM CDT WED JUL 22 2009

MNZ068-221915-
CARVER-
124 PM CDT WED JUL 22 2009

AT 123 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM 4 MILES SOUTHWEST OF WACONIA. THIS STORM WAS MOVING
EAST SOUTHEAST AT 10 MPH.

HAIL UP TO DIME SIZE AND WINDS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  NORWOOD/YOUNG AMERICA.
  WACONIA.
  COLOGNE.
  CARVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

IF NEAR LAKES...GET OUT OF THE WATER AND MOVE INDOORS OR INSIDE A
VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES FROM THE
PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH
TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. DONT BE CAUGHT
ON THE WATER IN A THUNDERSTORM

&&

LAT...LON 4468 9377 4467 9387 4481 9395 4487 9387
      4483 9365 4478 9359 4474 9363 4471 9362
      4470 9364 4470 9368 4464 9377
TIME...MOT...LOC 1824Z 286DEG 9KT 4482 9385

Local storm report, Jul 22, 1:26 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
126 PM CDT WED JUL 22 2009

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

0125 PM     FUNNEL CLOUD     WINSTED                 44.97N 94.05W
07/22/2009                   MCLEOD             MN   TRAINED SPOTTER

            FUNNEL HALF WAY TO GROUND.

&&

AJZ

Local storm report, Jul 22, 1:31 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
131 PM CDT WED JUL 22 2009

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

0130 PM     FUNNEL CLOUD     WINSTED                 44.97N 94.05W
07/22/2009                   MCLEOD             MN   TRAINED SPOTTER

            FUNNEL CLOUD ROPING OUT, STILL HALF WAY TO THE GROUND.

&&

AJZ

Special weather statement, Jul 22, 1:37 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
137 PM CDT WED JUL 22 2009

MNZ051-059-060-066>070-075>077-221930-
CARVER-DAKOTA-HENNEPIN-LE
SUEUR-MCLEOD-NICOLLET-RICE-SCOTT-SHERBURNE-SIBLEY-WRIGHT-
137 PM CDT WED JUL 22 2009

...THUNDERSTORMS WITH SMALL HAIL AND FUNNEL CLOUDS DEVELOPING OVER
PORTIONS OF CENTRAL MINNESOTA THROUGH 230 PM CDT...

AT 134 PM CDT...WEATHER SERVICE RADAR WAS TRACKING STRONG
THUNDERSTORMS FROM CLEARWATER TO WACONIA SOUTH TO NICOLETT. THESE
STORMS WERE MOVING EAST SOUTHEAST AT 10 MPH. HAIL UP TO DIME SIZE
AND WINDS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS. ALSO...FUNNEL
CLOUDS REPORTS HAVE BEEN FREQUENT WITH THESE THUNDERSTORMS. THE
ATMOSPHERE IS NOT FAVORABLE FOR A TORNADO TOUCHDOWN AT THIS TIME.
HOWEVER...IF YOU DO SEE A TORNADO TOUCHDOWN...TAKE COVER IMMEDIATELY.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  LORETTO.
  WAYZATA.
  WOODLAND.
  ST HENRY.
  VESELI.
  WEBSTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

&&

LAT...LON 4439 9452 4486 9432 4551 9387 4545 9377
      4493 9320 4491 9320 4480 9302 4477 9300
      4477 9296 4467 9277 4442 9324 4422 9407
TIME...MOT...LOC 1834Z 293DEG 62KT 4521 9351 4478 9385
          4426 9427

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:58 PM CDT	Special Weather Statement	MPX	Freeborn	47 min
Jul 22, 1:24 PM CDT	Special Weather Statement	MPX	Carver	51 min
Jul 22, 2:20 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur, Scott	24 min
Jul 22, 4:37 PM CDT	Special Weather Statement	MPX	Ramsey	23 min
Jul 22, 4:59 PM CDT	Special Weather Statement	MPX	Ramsey, Washington	46 min
Jul 22, 2:46 PM CDT	Special Weather Statement	MPX	Polk	44 min
Jul 22, 3:43 PM CDT	Special Weather Statement	MPX	Barron	47 min
Jul 22, 5:16 PM CDT	Special Weather Statement	MPX	Saint Croix	44 min
Jul 22, 5:34 PM CDT	Special Weather Statement	MPX	Polk	41 min
Jul 22, 5:58 PM CDT	Special Weather Statement	MPX	Saint Croix	32 min

Nearby

Special Weather Statements in Minnesota, 2009 Every special weather statement in 2009

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.