Alert archive / Minnesota / Flood Watches in 2011
Flood Watch 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flood watch at Mar 21, 2011, 3:30 PM CDT for 10 counties in Minnesota; 5 counties in Wisconsin. It took effect at Mar 22, 2011, 7:00 AM CDT. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Mar 21, 2011, 3:30 PM CDT (20:30 UTC)
- In effect from
- Mar 22, 2011, 7:00 AM CDT
- Expired
- Mar 22, 2011, 10:00 PM CDT
- In force
- 15 hr
- Issued by
- NWS Twin Cities, MN
- Flood severity
- None
Counties Anoka County, MN, Carver County, MN, Dakota County, MN, Hennepin County, MN, McLeod County, MN, Ramsey County, MN, Renville County, MN, Scott County, MN, Washington County, MN, Wright County, MN, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 37 km from the middle of the area, began a volume at 20:31 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 12:00Z, 8.5 hours before the alert went out and 39 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 717 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -199 m²/s²
- 0-3 km storm-relative helicity
- -160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
288 WGUS63 KMPX 212030 FFAMPX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 330 PM CDT MON MAR 21 2011 ...RAIN AND CONTINUED SNOW MELT TO CAUSE RISING RIVERS... .RAIN...AND A FEW THUNDERSTORMS...WILL DEVELOP ACROSS THE AREA LATER TONIGHT...WITH PERIODS OF RAIN CONTINUING THROUGH WEDNESDAY. RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE. SATURATED GROUND AND ANY REMAINING SNOW MELT OVER SOUTHERN MINNESOTA INTO WEST CENTRAL WISCONSIN WILL RESULT IN FURTHER RAINFALL QUICKLY RUNNING OFF INTO AREA STREAMS AND CREEKS. RISES ON THE RIVERS AND STREAMS WILL OCCUR...AND FLOODING APPEARS LIKELY FOR SOME RIVER SYSTEMS IF THE ANTICIPATED RAINFALL AMOUNTS ARE REALIZED. IN ADDITION...THE RAINFALL COULD LEAD TO PONDING OF WATER ON ROADWAYS...ALONG WITH LOCALIZED URBAN FLOODING. THE FLOOD WATCH INCLUDES THE AREA OF EAST CENTRAL MINNESOTA BOUNDED BY THE COMMUNITIES OF OLIVIA...BUFFALO AND ANOKA TO THE NORTH AND...THE TWIN CITIES...HASTING...JORDAN AND HUTCHINSON TO THE SOUTH. MNZ059>063-065-066-068>070-WIZ023>026-028-220430- /O.NEW.KMPX.FA.A.0001.110322T1200Z-110324T0000Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-RENVILLE-MCLEOD-CARVER- SCOTT-DAKOTA-ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- INCLUDING THE CITIES OF...MONTICELLO...MINNEAPOLIS...BLAINE... ST. PAUL...STILLWATER...OLIVIA...HUTCHINSON...CHASKA...SHAKOPEE... BURNSVILLE...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT... MENOMONIE...BOYCEVILLE...DURAND...PEPIN...EAU CLAIRE...ALTOONA 330 PM CDT MON MAR 21 2011 ...FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY EVENING... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A * FLOOD WATCH FOR PORTIONS OF MINNESOTA AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN MINNESOTA... ANOKA...CARVER...DAKOTA...HENNEPIN...MCLEOD...RAMSEY... RENVILLE...SCOTT...WASHINGTON AND WRIGHT. IN WEST CENTRAL WISCONSIN...DUNN...EAU CLAIRE...PEPIN...PIERCE AND ST. CROIX. * FROM TUESDAY MORNING THROUGH WEDNESDAY EVENING * RAINFALL OF 1 TO 2 INCHES IS EXPECTED THROUGH WEDNESDAY EVENING. WITH THE GROUND SATURATED FROM RECENT RAINS AND SNOW MELT...RUNOFF WILL LEAD TO RAPID RISES ON AREA STREAMS AND CREEKS. * IN ADDITION TO RISES ON AREA RIVERS AND STREAMS...PONDING OF WATER ON ROADWAYS AND LOCALIZED URBAN FLOODING WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
3 follow-up statements
045 WGUS63 KMPX 221500 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1000 AM CDT TUE MAR 22 2011 ...MORE RAIN AND SNOW MELT TO CAUSE RISING RIVERS... .RAIN ALONG WITH A FEW THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER PORTIONS OF EAST CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN TODAY INTO TONIGHT. THE RAIN COULD BECOME MIXED WITH SNOW BEFORE TRANSITIONING OVER TO ALL SNOW LATER TONIGHT. RAINFALL AMOUNTS OVERNIGHT HAD VARIED FROM THREE TENTH TO NEARLY AN INCH OVER THE MINNESOTA AND MISSISSIPPI RIVER BASINS. ADDITIONAL RAINFALL AND SNOW MELT WILL LIKELY LEAD TO RAPID RUNOFF AND COULD CAUSE SIGNIFICANT RISES ON MANY RIVERS AND STREAMS IN EAST CENTRAL MINNESOTA AND WESTERN WISCONSIN BEFORE TEMPERATURES COOL DOWN NEAR THE FREEZING MARK. IN ADDITION...THE RAINFALL COULD LEAD TO PONDING OF WATER ON ROADWAYS...ALONG WITH LOCALIZED URBAN FLOODING. THE FLOOD WATCH INCLUDES THE AREA OF EAST CENTRAL MINNESOTA BOUNDED BY THE COMMUNITIES OF WACONIA AND ANOKA TO THE NORTH AND...THE TWIN CITIES...HASTING AND JORDAN TO THE SOUTH. MNZ059-065-066-221600- /O.CAN.KMPX.FA.A.0001.000000T0000Z-110324T0000Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ WRIGHT-RENVILLE-MCLEOD- INCLUDING THE CITIES OF...MONTICELLO...OLIVIA...HUTCHINSON 1000 AM CDT TUE MAR 22 2011 ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR A PORTION OF CENTRAL MINNESOTA HAS BEEN CANCELLED. THE FLOOD WATCH HAD BEEN UPGRADED TO AREAL FLOOD WARNING. RAINFALL AMOUNTS OVERNIGHT HAVE EXCEEDED OVER AN INCH IN SOME LOCALES. RUNOFF FROM THESE RAINS AND THE WATER FROM SNOW MELT WILL CAUSE OF MODERATE RISES TO RIVERS AND STREAMS. SOME FLOODING OF LOW LYING AREAS IS LIKELY. $$ MNZ060>063-068>070-WIZ023>026-028-222300- /O.CON.KMPX.FA.A.0001.000000T0000Z-110324T0000Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA-ST. CROIX- PIERCE-DUNN-PEPIN-EAU CLAIRE- INCLUDING THE CITIES OF...MINNEAPOLIS...BLAINE...ST. PAUL... STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...HUDSON... NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE... DURAND...PEPIN...EAU CLAIRE...ALTOONA 1000 AM CDT TUE MAR 22 2011 ...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF EAST CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL MINNESOTA...ANOKA...CARVER...DAKOTA...HENNEPIN...RAMSEY... SCOTT AND WASHINGTON. IN WEST CENTRAL WISCONSIN...DUNN...EAU CLAIRE...PEPIN...PIERCE AND ST. CROIX. * THROUGH WEDNESDAY EVENING * RAINFALL OF 1 TO 2 INCHES IS EXPECTED THROUGH WEDNESDAY EVENING. WITH THE GROUND SATURATED FROM RECENT RAINS AND SNOW MELT...RUNOFF WILL LEAD TO RAPID RISES ON AREA STREAMS AND CREEKS. * IN ADDITION TO RISES ON AREA RIVERS AND STREAMS...PONDING OF WATER ON ROADWAYS AND LOCALIZED URBAN FLOODING WILL ALSO BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
523 WGUS63 KMPX 222248 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 548 PM CDT TUE MAR 22 2011 ...SHOWERS AND THUNDERSTORMS MOVING IN TONIGHT ... .RAIN ALONG WITH SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER PORTIONS OF EAST CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN TONIGHT. THE RAIN COULD BECOME MIXED WITH SNOW OR SLEET BEFORE TRANSITIONING OVER TO ALL SNOW LATER TONIGHT. RAINFALL AMOUNTS LAST NIGHT VARIED FROM THREE TENTHS TO NEARLY AN INCH OVER THE MINNESOTA AND MISSISSIPPI RIVER BASINS. ADDITIONAL RAINFALL AND PAST SNOW MELT WILL LIKELY LEAD TO RAPID RUNOFF AND COULD CAUSE SIGNIFICANT RISES ON MANY RIVERS AND STREAMS IN EAST CENTRAL MINNESOTA AND WESTERN WISCONSIN BEFORE TEMPERATURES COOL BELOW THE FREEZING MARK TONIGHT. THE FLOOD WATCH INCLUDES THE AREA OF EAST CENTRAL MINNESOTA BOUNDED BY THE COMMUNITIES OF WACONIA AND ANOKA TO THE NORTH AND...THE TWIN CITIES...HASTING AND JORDAN TO THE SOUTH. MNZ060>063-068>070-WIZ023>026-028-230700- /O.CON.KMPX.FA.A.0001.000000T0000Z-110324T0000Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA-ST. CROIX- PIERCE-DUNN-PEPIN-EAU CLAIRE- INCLUDING THE CITIES OF...MINNEAPOLIS...BLAINE...ST. PAUL... STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...HUDSON... NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE... DURAND...PEPIN...EAU CLAIRE...ALTOONA 548 PM CDT TUE MAR 22 2011 ...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING... THE FLOOD WATCH CONTINUES FOR * PORTIONS OF EAST CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL MINNESOTA...ANOKA...CARVER...DAKOTA...HENNEPIN...RAMSEY... SCOTT AND WASHINGTON. IN WEST CENTRAL WISCONSIN...DUNN...EAU CLAIRE...PEPIN...PIERCE AND ST. CROIX. * THROUGH WEDNESDAY EVENING * RAINFALL BETWEEN A HALF AND ONE INCH IS POSSIBLE THIS EVENING BEFORE CHANGING TO SLEET AND SNOW TONIGHT. THE GROUND SATURATED FROM RECENT RAINS AND SNOW MELT...RUNOFF COULD LEAD TO RAPID RISES ON AREA STREAMS AND CREEKS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
901 WGUS63 KMPX 230300 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1000 PM CDT TUE MAR 22 2011 ..FLOOD WATCH CANCELLED.... .ADDITONAL PRECIPITATION OVERNIGHT INTO WEDNESDAY...WILL BE CHANGING OVER FROM A MIX OF RAIN...SLEET AND SNOW...TO ALL SNOW. SIGNIFICANT OR HEAVY RAINFALL IS NO LONGER EXPECTED. MNZ060>063-068>070-WIZ023>026-028-230400- /O.CAN.KMPX.FA.A.0001.000000T0000Z-110324T0000Z/ /00000.0.RS.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HENNEPIN-ANOKA-RAMSEY-WASHINGTON-CARVER-SCOTT-DAKOTA-ST. CROIX- PIERCE-DUNN-PEPIN-EAU CLAIRE- INCLUDING THE CITIES OF...MINNEAPOLIS...BLAINE...ST. PAUL... STILLWATER...CHASKA...SHAKOPEE...BURNSVILLE...HUDSON... NEW RICHMOND...RIVER FALLS...PRESCOTT...MENOMONIE...BOYCEVILLE... DURAND...PEPIN...EAU CLAIRE...ALTOONA 1000 PM CDT TUE MAR 22 2011 ...FLOOD WATCH IS CANCELLED... ...FLOOD WATCH IS CANCELLED... THE FLOOD WATCH FOR PORTIONS OF EAST CENTRAL MINNESOTA AND WEST CENTRAL WISCONSIN HAS BEEN CANCELLED. SIGNIFICANT OR HEAVY RAINFALL $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 11:26 PM CDT | Areal Flood Warning | MPX | Le Sueur, Scott, Sibley | 24 hr |
| Mar 21, 3:20 PM CDT | Winter Storm Warning | MPX | Anoka, Benton, Carver, Chippewa, Chisago, Douglas and 22 more | 52 hr |
| Mar 21, 3:38 PM CDT | Areal Flood Warning | MPX | Blue Earth, Brown, Faribault, Freeborn, Goodhue, Le Sueur and 8 more | 7 days |
| Mar 21, 5:01 PM CDT | River Flood Warning | MPX | Goodhue | 54 hr |
Nearby
Flood Watches in Minnesota, 2011Flood Watches in Wisconsin, 2011Every flood watch in 2011
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.