Alert archive / Minnesota / Special Weather Statements in 2010
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Jul 16, 2010, 6:23 PM CDT for Freeborn County, Minnesota. It was in force for 52 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 16, 2010, 6:23 PM CDT (23:23 UTC)
- Expired
- Jul 16, 2010, 7:15 PM CDT
- In force
- 52 min
- Issued by
- NWS Twin Cities, MN
County Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 143 km from the middle of the area, began a volume at 23:23 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, 11.4 hours before the alert went out and 143 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.
- Mixed-layer CAPE
- 241 J/kg
- Mixed-layer CIN
- -164 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 16, 5:50 PM CDT, 33 minutes earlier.
Area forecast discussion, Jul 16, 5:50 PM CDT, 33 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 550 PM CDT FRI JUL 16 2010 .UPDATE...FOR 00Z AVIATION DISCUSSION BELOW && .DISCUSSION.../ISSUED 238 PM CDT FRI JUL 16 2010/ THE FORECAST CONCERN IS THE SEVERE WEATHER POTENTIAL FOR SATURDAY AND SATURDAY NIGHT. THE LATEST MODELS CONTINUE TO TREND TOWARD A MAJOR SEVERE WEATHER OUTBREAK DEVELOPING ACROSS THE UPPER MIDWEST WITH THE MAIN FOCUS OVER CENTRAL AND SOUTHERN MINNESOTA. IN ADDITION...QUASI-LINEAR BOW STRUCTURE STORMS LATE SATURDAY EVENING AND OVERNIGHT...WHICH COULD LEAD TO MORE WIDESPREAD WIND DAMAGE AND HEAVY RAIN OVER EAST CENTRAL MN AND WESTERN WISCONSIN SATURDAY NIGHT. A SFC LOW PRESSURE WITH A WARM FRONT IS PROGGED TO LIFT NORTHEAST OVER WESTERN MINNESOTA DURING THE DAY ON SATURDAY. MODELS SHOWED A STRONG UPPER LEVEL JET /80 KNOTS OR GREATER/ 250 MB MOVING OVER THE AREA AS WELL. THIS PLACES MUCH OF OUR FORECAST AREA IN THE FAVORABLE RIGHT REAR QUADRANT OF THE JET MAXIMUM. SEVERAL MINOR SHORTWAVE TROUGHS WILL HELP INSTIGATE EARLIER DEEP CONVECTION AND THUNDERSTORM DEVELOPMENT SATURDAY AFTERNOON OVER WESTERN MN...BEFORE A LARGE MESOSCALE CONVECTIVE SYSTEM DEVELOPS DURING THE EVENING AND OVERNIGHT. TORNADO PARAMETERS INDICATED MODERATE TO HIGH PROBABILITY OF EF1 OR GREATER TORNADOES OVER CENTRAL MINNESOTA LATE AFTERNOON AND EVENING SATURDAY. PROGS INDICATE ABOUT 2500-3000 J/KG WITH LIFTED INDICES OF -6 TO -10 CELSIUS...WITH LEAST 30 TO 45 ZERO TO 1KM BULK SHEAR ACRS THE AREA. SPC HAS OUTLOOKED MUCH OF THE FORECAST AREA UNDER A MODERATE RISK OF SEVERE STORMS. EXPECT SUPERCELLS...CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WINDS AND TORNADOES LIKELY. IN THE NEAR TERM...WEAK SURFACE BOUNDARY OR TROUGH WILL HELP FOCUS SOME LOW LEVEL MOISTURE OVER SOUTH CENTRAL MN INTO PARTS OF WESTERN WISCONSIN EARLY THIS EVENING. SFC DEWPOINTS WERE IN THE MID/UPPER 60S. EXPECT SOME ISOLATED THUNDERSTORMS EARLY THIS EVENING...OTHERWISE SKIES SHOULD BECOME MOSTLY CLEAR OVERNIGHT. HIGH PRESSURE RIDGE CENTERED OVER THE NORTHERN PLAINS INTO SOUTHWEST U.S. WILL KEEP MUCH OF THE AREA DRY THROUGH MIDDAY SATURDAY. IN THE MEDIUM RANGE AND LONG RANGE FORECAST...ANOTHER WARM FRONT WILL LAY ACROSS THE MIDWEST BY MONDAY EVENING...THEN SLOWLY LIFT NORTH DURING THE PERIOD. MOISTURE WILL BEGIN TO LIFT BACK NORTH OVER SOUTH CENTRAL MN. SCATTERED THUNDERSTORMS ARE POSSIBLE OVER THE SOUTHERN HALF OF MN MONDAY NIGHT. THE WEATHER WILL REMAIN ACTIVE INTO NEXT WEEK AS UPPER RIDGE BUILDS OVER THE NATION MIDSECTION...EXPECT RIDGE RIDERS(THUNDERSTORMS) MOVING SOUTHEAST OVER THE FORECAST. && .AVIATION.../00Z TAF ISSUANCE/ SHRA/TS WILL REMAIN SOUTH OF THE TAF SITES THIS EVENING...AND CU CLOUDS WILL CONTINUE DISSIPATING. NOCTURNAL SHRA/TS DEVELOPMENT IS POSSIBLE TO THE WEST OVER THE DAKOTAS TONIGHT. SOME OF THIS ACTIVITY MAY SNEAK INTO WEST CENTRAL MN NEAR KAXN ON SATURDAY MORNING. OTHERWISE...THE MORE WIDESPREAD AND STRONGER CONVECTION /IN THE FORM OF DISCRETE SUPERCELLS/ IS EXPECTED TO INITIATE AROUND/AFTER 20Z ACROSS WEST/CENTRAL MN...AND SPREAD SOUTH/EAST INTO THE EVENING HOURS...EVENTUALLY CONGEALING INTO A CONVECTIVE COMPLEX. FOR NOW...HAVE INCLUDED PROB GROUPS DUE TO TIMING UNKNOWNS...BUT IT IS LIKELY THAT MOST /IF NOT ALL/ TAF SITES WILL EXPERIENCE THUNDERSTORM ACTIVITY AT SOME POINT BETWEEN 21Z SATURDAY AND 06Z SUNDAY. KMSP...MOSTLY CLEAR SKIES AND WEST WINDS AROUND 5 KTS WILL PREVAIL TONIGHT. WINDS WILL SHIFT TO SOUTHERLY IN DIRECTION ON SATURDAY...WITH CUMULUS DEVELOPMENT AFTER MID MORNING. NON THUNDERSTORM WIND GUSTS AS HIGH AS 20 KTS ARE POSSIBLE ON SATURDAY AFTERNOON AS THE TROUGH APPROACHES. ALTHOUGH A FEW THUNDERSTORMS CANNOT BE RULED OUT IN THE VICINITY OF THE AIRPORT PRIOR TO 21Z...THE MORE LIKELY WINDOW FOR TS AT MSP IS BETWEEN 21Z AND 06Z SUNDAY. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...NONE. WI...NONE. &&
Hazardous weather outlook, Jul 16, 3:10 PM CDT, 3 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 310 PM CDT FRI JUL 16 2010 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 171100- 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- 310 PM CDT FRI JUL 16 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA...AND WEST CENTRAL WISCONSIN. .DAY ONE...TONIGHT ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS PARTS OF SOUTH CENTRAL AND SOUTHEAST MINNESOTA...MAINLY ALONG AND SOUTH OF THE INTERSTATE 90 CORRIDOR. A FEW STORMS COULD PRODUCE HAIL UP TO NICKEL SIZE AND DAMAGING WINDS BEFORE 800 PM THIS EVENING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE OUTLOOK AREA LATE SATURDAY AFTERNOON INTO SATURDAY NIGHT. A LOW PRESSURE SYSTEM WILL LIFT NORTHEAST OVER MINNESOTA LATE IN THE DAY ON SATURDAY. VERY WARM...MOIST AND UNSTABLE AIR WILL LIFT NORTHWARD OVER MINNESOTA AND WESTERN WISCONSIN. SEVER STORMS CAPABLE OF PRODUCING VERY LARGE HAIL...DAMAGING WINDS AND EVEN A FEW TORNADOES. HEAVY RAINS ARE ALSO POSSIBLE WITH THESE STORMS. THE BEST TIME FOR INITIATION OF THUNDERSTORMS WILL BE LATE AFTERNOON AND EVENING ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS POSSIBLE FOR A SHORT TIME ACROSS SOUTH CENTRAL MINNESOTA EARLY THIS EVENING. ACTIVATION ACROSS MUCH OF THE OUTLOOK AREA IS LIKELY LATE AFTERNOON OR EVENING ON SATURDAY.
In the hours before
Special weather statement, Jul 16, 5:06 PM CDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 506 PM CDT FRI JUL 16 2010 MNZ085-093-162245- FREEBORN-STEELE- 506 PM CDT FRI JUL 16 2010 AT 505 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG THUNDERSTORM 4 MILES SOUTHEAST OF STEELE CENTER. THIS STORM WAS MOVING EAST AT 25 MPH. HAIL UP TO DIME SIZE...WINDS UP TO 50 MPH...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM. * LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... STEELE CENTER. BIXBY. BLOOMING PRAIRIE. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 4398 9305 4381 9305 4383 9327 4401 9322 TIME...MOT...LOC 2207Z 283DEG 23KT 4390 9311
Special weather statement, Jul 16, 6:23 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
623 PM CDT FRI JUL 16 2010
MNZ093-170015-
FREEBORN-
623 PM CDT FRI JUL 16 2010
...THUNDERSTORMS OVER SOUTHERN FREEBORN COUNTY THROUGH 715 PM CDT...
AT 618 PM CDT...WEATHER SERVICE RADAR WAS TRACKING A STRONG
THUNDERSTORM NEAR CONGER. THIS STORM WAS MOVING SOUTHEAST AT 20 MPH.
HAIL UP TO DIME SIZE AND WINDS UP TO 50 MPH ARE EXPECTED WITH THIS
STORM.
* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
CONGER.
ALBERT LEA.
TWIN LAKES.
GLENVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.
&&
LAT...LON 4351 9365 4363 9363 4370 9355 4365 9305
4349 9308 4349 9363
TIME...MOT...LOC 2323Z 303DEG 18KT 4357 9351
LSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 4:13 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn, Steele | 47 min |
| Jul 16, 5:06 PM CDT | Special Weather Statement | MPX | Steele | 39 min |
| Jul 16, 6:34 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 56 min |
Nearby
Special Weather Statements in Minnesota, 2010Every special weather statement in 2010
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.