Alert archive / Minnesota / Special Weather Statements in 2016

Special Weather Statement, NWS Twin Cities, MN

September 22, 2016Le Sueur County, Rice County, Minnesota

NWS Twin Cities, MN issued this special weather statement at Sep 22, 2016, 2:21 AM CDT for Le Sueur County, Rice County, Minnesota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 22, 2016, 2:21 AM CDT (07:21 UTC)
Expired
Sep 22, 2016, 5:15 AM CDT
In force
3 hr
Issued by
NWS Twin Cities, MN

Counties Le Sueur County, MN, Rice County, MN

The radar

The Minneapolis radar (KMPX), 70 km from the middle of the area, began a volume at 07:25 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, 7.4 hours before the alert went out and 70 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 2016-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 144 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 2016-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 square meters per square second.193958Sfc1 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
144 J/kg
Mixed-layer CIN
-361 J/kg
Mixed-layer LCL
641 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
596 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.6

Open this sounding in Storm Lab

The text

As transmitted.

175 
WWUS83 KMPX 220721
SPSMPX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
221 AM CDT THU SEP 22 2016
 
MNZ075>077-083-221015-
NICOLLET-RICE-BLUE EARTH-LE SUEUR-
221 AM CDT THU SEP 22 2016

...VERY HEAVY RAIN AND LOCALIZED MINOR FLOODING EXPECTED...

VERY HEAVY RAIN WITH THE POTENTIAL FOR LOCALIZED FLOODING WILL AFFECT
THE FOLLOWING COUNTIES...

NICOLLET...RICE...BLUE EARTH...LE SUEUR...

AT 217 AM CDT...VERY HEAVY RAIN WITH LOCALIZED FLOODING WAS
OCCURRING IN MANKATO AND PORTIONS OF LE SUEUR AND RICE COUNTIES. 2
TO 4 INCHES OF RAINFALL HAS OCCURRED IN THESE AREAS AND MINOR
FLOODING HAS BEEN REPORTED.

LOCATIONS IMPACTED INCLUDE...
MANKATO...FARIBAULT...NORTHFIELD...NORTH MANKATO...ST. PETER...
LONSDALE...MONTGOMERY...LE CENTER...EAGLE LAKE...WATERVILLE...
DUNDAS AND MADISON LAKE.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 35 BETWEEN MILE MARKERS 57 AND 70.
 U.S. HIGHWAY 14 BETWEEN MILE MARKERS 124 AND 141.
 U.S. HIGHWAY 169 BETWEEN MILE MARKERS 49 AND 67.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

LAT...LON 4407 9408 4429 9414 4451 9334 4436 9305
      4419 9365 4420 9376 4416 9377
TIME...MOT...LOC 0717Z 180DEG 0KT 4423 9393 
$$

FRANKS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 7:00 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright30 min
Sep 21, 8:10 PM CDTSevere Thunderstorm WarningMPXHennepin, Ramsey50 min
Sep 21, 8:24 PM CDTFlash Flood WarningMPXHennepin, Ramsey3 hr
Sep 21, 10:07 PM CDTFlash Flood WarningMPXBlue Earth, Goodhue, Rice, Steele, Waseca7 hr
Sep 21, 11:11 PM CDTFlash Flood Warning EmergencyMPXAnoka, Hennepin5 hr
Sep 21, 11:21 PM CDTSevere Thunderstorm WarningMPXFreeborn39 min
Sep 22, 12:23 AM CDTFlash Flood WarningMPXBlue Earth, Faribault, Freeborn, Steele, Waseca4 hr
Sep 22, 2:29 AM CDTSpecial Weather StatementMPXBlue Earth3 hr
Sep 22, 3:59 AM CDTFlash Flood WatchMPXBlue Earth, Brown, Dakota, Faribault, Freeborn, Goodhue and 9 more7 hr
Sep 22, 4:48 AM CDTAreal Flood WarningMPXBlue Earth, Faribault, Freeborn, Steele, Waseca24 hr
Sep 22, 4:57 AM CDTAreal Flood WarningMPXBlue Earth, Goodhue, Le Sueur, Rice, Steele, Waseca24 hr
Sep 22, 4:57 AM CDTRiver Flood WarningMPXGoodhue70 hr
Sep 22, 6:51 AM CDTSpecial Weather StatementMPXWatonwan3 hr
Sep 22, 10:57 AM CDTRiver Flood WarningMPXGoodhue43 hr
Sep 21, 7:12 PM CDTFlash Flood WarningMPXChippewa, Eau Claire4 hr
Sep 21, 7:36 PM CDTFlash Flood WarningMPXDunn, Saint Croix4 hr
Sep 21, 9:03 PM CDTRiver Flood WarningMPXEau Claire4 days
Sep 22, 5:33 AM CDTAreal Flood WarningMPXChippewa, Dunn, Eau Claire24 hr

Nearby

Special Weather Statements in Minnesota, 2016Every special weather statement in 2016

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.