Alert archive / Minnesota / Wind Advisories in 2007

Wind Advisory 15, NWS Twin Cities, MN

September 21, 200721 counties in Minnesota

NWS Twin Cities, MN issued this wind advisory at Sep 21, 2007, 4:30 AM CDT for 21 counties in Minnesota. It took effect at Sep 21, 2007, 11:00 AM CDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 21, 2007, 4:30 AM CDT (09:30 UTC)
In effect from
Sep 21, 2007, 11:00 AM CDT
Expired
Sep 21, 2007, 2:56 PM CDT
In force
4 hr
Issued by
NWS Twin Cities, MN
All 21 counties

Benton County, MN, Brown County, MN, Chippewa County, MN, Douglas County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, McLeod County, MN, Meeker County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Wright County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 09:31 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 00:00Z, 9.5 hours before the alert went out and 108 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-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2007-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1394 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2007-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1394 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
838 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
567 m²/s²
Significant tornado parameter
0.0
Supercell composite
24.8

Open this sounding in Storm Lab

The text

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

000 
WWUS73 KMPX 210930
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
430 AM CDT FRI SEP 21 2007

...STRONG WEST TO NORTHWEST WINDS EXPECTED ACROSS THE WESTERN HALF
OF MINNESOTA TODAY...

.DURING THE LATE MORNING AND AFTERNOON...STRONG WEST TO NORTHWEST
WINDS ARE EXPECTED TO DEVELOP ACROSS WESTERN MINNESOTA. THESE
WINDS ARE IN RESPONSE TO A DEEPENING LOW PRESSURE SYSTEM LIFTING
NORTHEAST TODAY ACROSS NORTHERN MINNESOTA. DRY AIR ON THE BACKSIDE
OF THIS SYSTEM WILL FLOOD INTO WESTERN MINNESOTA LATE THIS MORNING
AND FURTHER EAST DURING THE AFTERNOON. THIS ENVIRONMENT SETUP IS
FAVORABLE FOR SUSTAINED WIND SPEEDS EXCEEDING 30 MPH WITH GUSTS OF
40 TO 45 MPH. GUSTS TO NEAR 50 MPH ARE POSSIBLE IN HIGHER
ELEVATIONS OF BUFFALO RIDGE AND NEAR ALEXANDRIA. THE WINDS ARE
EXPECTED TO SUBSIDE BY LATE AFTERNOON.

THE ADVISORY IS IN EFFECT IN CENTRAL AND SOUTHERN MINNESOTA WEST
OF A LINE FROM MILLE LACS LAKE TO MANKATO. A WIND ADVISORY MEANS
THAT WINDS OF 35 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION IF TRAVELING IN SUCH A VEHICLE...NAMELY ON I-94
NORTHWEST OF THE TWIN CITIES.

MNZ041>043-047>051-054>059-064>067-073>075-211730-
/O.NEW.KMPX.WI.Y.0015.070921T1600Z-070921T2100Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-SHERBURNE-
LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-WRIGHT-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-NICOLLET-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...MONTICELLO...GRANITE FALLS...OLIVIA...HUTCHINSON...
GAYLORD...REDWOOD FALLS...NEW ULM...ST. PETER
430 AM CDT FRI SEP 21 2007

...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 4 PM CDT
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS
MORNING TO 4 PM CDT THIS AFTERNOON.

.DURING THE LATE MORNING AND AFTERNOON...STRONG WEST TO NORTHWEST
WINDS ARE EXPECTED TO DEVELOP ACROSS WESTERN MINNESOTA. THESE
WINDS ARE IN RESPONSE TO A DEEPENING LOW PRESSURE SYSTEM LIFTING
NORTHEAST TODAY ACROSS NORTHERN MINNESOTA. DRY AIR ON THE BACKSIDE
OF THIS SYSTEM WILL FLOOD INTO WESTERN MINNESOTA LATE THIS MORNING
AND FURTHER EAST DURING THE AFTERNOON. THIS ENVIRONMENT SETUP IS
FAVORABLE FOR SUSTAINED WIND SPEEDS EXCEEDING 30 MPH WITH GUSTS OF
40 TO 45 MPH. GUSTS TO NEAR 50 MPH ARE POSSIBLE IN HIGHER
ELEVATIONS OF BUFFALO RIDGE AND NEAR ALEXANDRIA. THE WINDS ARE
EXPECTED TO SUBSIDE BY LATE AFTERNOON. THE ADVISORY IS IN EFFECT
IN CENTRAL AND SOUTHERN MINNESOTA WEST OF A LINE FROM MILLE LACS
LAKE TO MANKATO.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION IF TRAVELING IN SUCH A VEHICLE...NAMELY ON I-94 NORTHWEST
OF THE TWIN CITIES.

$$
2 follow-up statements
000 
WWUS73 KMPX 211658
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1158 AM CDT FRI SEP 21 2007

...STRONG WEST TO NORTHWEST WINDS TO CONTINUE ACROSS WESTERN
MINNESOTA THIS AFTERNOON...

.A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM THIS AFTERNOON
ALONG AND WEST OF A LINE FROM MILLE LACS LAKE TO MANKATO.

LATE THIS MORNING...WEST TO NORTHWEST WINDS OF 30 TO 35 MPH WERE
OCCURRING ACROSS WEST CENTRAL AND SOUTHWEST AREAS OF MINNESOTA...
FROM ALEXANDRIA TO MARSHALL ON WESTWARD. WIND GUSTS TO 47 MPH HAVE
BEEN REPORTED AT GRANITE FALLS AND HANLEY FALLS. THE WINDS ARE IN
RESPONSE TO A STRONG COLD FRONT PUSHING ACROSS WESTERN AREAS OF
THE STATE.

THE STRONG SUSTAINED WINDS...ALONG WITH GUSTS WELL INTO THE 40 MPH
RANGE...WILL SPREAD EAST TO MILLE LACS LAKE...LITCHFIELD...OLIVIA
AND MANKATO BY EARLY THIS AFTERNOON. THE WINDS ARE EXPECTED TO
SUBSIDE SOME LATE IN THE AFTERNOON. 

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH ARE
EXPECTED OR OCCURRING. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION IF TRAVELING IN SUCH A VEHICLE...NAMELY ON I-94 NORTHWEST
OF THE TWIN CITIES.

MNZ041>043-047>051-054>059-064>067-073>075-212100-
/O.CON.KMPX.WI.Y.0015.000000T0000Z-070921T2100Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-SHERBURNE-
LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-WRIGHT-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-NICOLLET-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...MONTICELLO...GRANITE FALLS...OLIVIA...HUTCHINSON...
GAYLORD...REDWOOD FALLS...NEW ULM...ST. PETER
1158 AM CDT FRI SEP 21 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS
AFTERNOON...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON. 

.A WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM THIS AFTERNOON ALONG
AND WEST OF A LINE FROM MILLE LACS LAKE TO MANKATO.

LATE THIS MORNING...WEST TO NORTHWEST WINDS OF 30 TO 35 MPH WERE
OCCURRING ACROSS WEST CENTRAL AND SOUTHWEST AREAS OF MINNESOTA...
FROM ALEXANDRIA TO MARSHALL ON WESTWARD. WIND GUSTS TO 47 MPH HAVE
BEEN REPORTED AT GRANITE FALLS AND HANLEY FALLS. THE WINDS ARE IN
RESPONSE TO A STRONG COLD FRONT PUSHING ACROSS WESTERN AREAS OF
THE STATE.

THE STRONG SUSTAINED WINDS...ALONG WITH GUSTS WELL INTO THE 40 MPH
RANGE...WILL SPREAD EAST TO MILLE LACS LAKE...LITCHFIELD...OLIVIA
AND MANKATO BY EARLY THIS AFTERNOON.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION IF
TRAVELING IN SUCH A VEHICLE...NAMELY ON I-94 NORTHWEST OF THE TWIN
CITIES.

$$

RAH
000 
WWUS73 KMPX 211956
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
256 PM CDT FRI SEP 21 2007

...WIND ADVISORY CANCELLED...

.THE NATIONAL WEATHER SERVICE IN CHANHASSEN HAS CANCELLED THE WIND
ADVISORY. SUSTAINED WINDS AT MID AFTERNOON HAVE DIMINISHED BELOW
30 MPH OVER WEST CENTRAL AND SOUTHWEST AREAS OF MINNESOTA.
HENCE...THE ADVISORY HAS BEEN CANCELLED.

MNZ041>043-047>051-054>059-064>067-073>075-212100-
/O.CAN.KMPX.WI.Y.0015.000000T0000Z-070921T2100Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-SHERBURNE-
LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-WRIGHT-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-NICOLLET-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...MONTICELLO...GRANITE FALLS...OLIVIA...HUTCHINSON...
GAYLORD...REDWOOD FALLS...NEW ULM...ST. PETER
256 PM CDT FRI SEP 21 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHANHASSEN HAS CANCELLED THE WIND
ADVISORY.

SUSTAINED WINDS AT MID AFTERNOON ACROSS WEST CENTRAL AND SOUTH
CENTRAL MINNESOTA HAVE DIMINISHED BELOW 30 MPH. HENCE...THE
ADVISORY HAS BEEN CANCELLED. 

$$

RAH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 7:29 PM CDTSevere Thunderstorm WarningMPXAnoka, Washington34 min
Sep 20, 7:56 PM CDTSevere Thunderstorm WarningMPXIsanti38 min
Sep 21, 1:06 AM CDTSevere Thunderstorm WarningMPXDouglas38 min
Sep 21, 1:36 AM CDTSevere Thunderstorm WarningMPXTodd54 min
Sep 21, 5:31 AM CDTSevere Thunderstorm WarningMPXWright44 min
Sep 21, 5:36 AM CDTSevere Thunderstorm WarningMPXChisago, Isanti25 min
Sep 21, 5:45 AM CDTSevere Thunderstorm WarningMPXBenton18 min
Sep 21, 5:59 AM CDTSevere Thunderstorm WarningMPXSherburne17 min
Sep 21, 6:13 AM CDTSevere Thunderstorm WarningMPXAnoka, Isanti22 min

Nearby

Wind Advisories in Minnesota, 2007Every wind advisory 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.