Alert archive / Minnesota / Flash Flood Watches in 2014
Flash Flood Watch 7, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood watch at Aug 21, 2014, 2:33 AM CDT for 27 counties in Minnesota; Pierce County, Saint Croix County, Wisconsin. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Aug 21, 2014, 2:33 AM CDT (07:33 UTC)
- Expired
- Aug 21, 2014, 6:05 AM CDT
- In force
- 4 hr
- Issued by
- NWS Twin Cities, MN
- Flood severity
- None
All 29 counties
Anoka County, MN, Blue Earth County, MN, Carver County, MN, Chippewa County, MN, Dakota County, MN, Douglas County, MN, Goodhue County, MN, Hennepin County, MN, Kandiyohi County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Waseca County, MN, Washington County, MN, Wright County, MN, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 35 km from the middle of the area, began a volume at 07:35 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, 7.6 hours before the alert went out and 33 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
- 397 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
453 WGUS63 KMPX 210733 FFAMPX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 233 AM CDT THU AUG 21 2014 ...VERY HEAVY RAIN CURRENTLY DEVELOPING WHICH WILL LEAD TO THE POTENTIAL FOR FLASH FLOODING THROUGH MID MORNING... .NUMEROUS THUNDERSTORMS HAVE DEVELOPED ALONG A WARM FRONT EXTENDING FROM EASTERN SOUTH DAKOTA SOUTHEAST INTO SOUTHWEST MINNESOTA. WITH TIME...THESE THUNDERSTORMS WILL ALIGN THEMSELVES IN A WEST NORTHEAST TO EAST SOUTHEAST EARLY THIS MORNING AND WILL TRAIN OVER THE SAME AREAS. VERY HIGH MOISTURE CONTENT IN THE ATMOSPHERE WILL ALLOW FOR VERY EFFICIENT HEAVY RAIN PRODUCING STORMS WITH RAINFALL RATES OF 2 INCHES PER HOUR POSSIBLE. THE HEAVIEST RAIN IS CURRENTLY EXPECTED TO FALL ALONG AND JUST NORTH OF THE MINNESOTA RIVER AND SOUTH OF I-94...TO AS FAR EAST AS RED WING MINNESOTA. WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED...WITH LOCALIZED TOTALS OF 3 TO 6 INCHES POSSIBLE. THIS MUCH RAIN IN A SHORT AMOUNT OF TIME WILL LEAD TO A HEIGHTENED THREAT FOR FLASH FLOODING THIS MORNING. MNZ041-047>049-051-055>063-065>070-075>078-083>085-WIZ023-024- 211500- /O.NEW.KMPX.FF.A.0007.140821T0733Z-140821T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DOUGLAS-STEVENS-POPE-STEARNS-SHERBURNE-SWIFT-CHIPPEWA-KANDIYOHI- MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-RENVILLE-MCLEOD- SIBLEY-CARVER-SCOTT-DAKOTA-NICOLLET-LE SUEUR-RICE-GOODHUE- BLUE EARTH-WASECA-STEELE-ST. CROIX-PIERCE- INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD... ST. CLOUD...ELK RIVER...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL... STILLWATER...OLIVIA...HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE... BURNSVILLE...ST. PETER...LE SUEUR...FARIBAULT...RED WING... MANKATO...WASECA...OWATONNA...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT 233 AM CDT THU AUG 21 2014 ...FLASH FLOOD WATCH IN EFFECT UNTIL 10 AM CDT THIS MORNING... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF MINNESOTA AND WEST CENTRAL WISCONSIN...INCLUDING THE FOLLOWING AREAS...IN MINNESOTA... ANOKA...BLUE EARTH...CARVER...CHIPPEWA...DAKOTA...DOUGLAS... GOODHUE...HENNEPIN...KANDIYOHI...LE SUEUR...MCLEOD...MEEKER... NICOLLET...POPE...RAMSEY...RENVILLE...RICE...SCOTT... SHERBURNE...SIBLEY...STEARNS...STEELE...STEVENS...SWIFT... WASECA...WASHINGTON AND WRIGHT. IN WEST CENTRAL WISCONSIN... PIERCE AND ST. CROIX. * UNTIL 10 AM CDT THIS MORNING. * NUMEROUS THUNDERSTORMS PRODUCING TORRENTIAL RAIN WILL TRACK OVER SOME OF THE SAME AREAS REPEATEDLY EARLY THIS MORNING. WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE FORECAST...WITH AS MUCH AS 3 TO 6 INCHES FALLING IN LOCALIZED AREAS. * DRIVING AT NIGHT DURING FLASH FLOOD SITUATION IS EXTREMELY DANGEROUS AS DRIVERS MAY UNDERESTIMATE THE DEPTH OF THE WATER OR MAY COME ACROSS AREAS PRONE TO WASHOUTS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ BORGHOFF
1 follow-up statement
098 WGUS63 KMPX 211105 FFAMPX FLOOD WATCH NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 605 AM CDT THU AUG 21 2014 ...HEAVY RAIN AND FLASH FLOOD THREAT QUICKLY DIMINISHING... MNZ041-047>049-051-055>063-065>070-075>078-083>085-WIZ023-024- 211215- /O.CAN.KMPX.FF.A.0007.000000T0000Z-140821T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DOUGLAS-STEVENS-POPE-STEARNS-SHERBURNE-SWIFT-CHIPPEWA-KANDIYOHI- MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-RENVILLE-MCLEOD- SIBLEY-CARVER-SCOTT-DAKOTA-NICOLLET-LE SUEUR-RICE-GOODHUE- BLUE EARTH-WASECA-STEELE-ST. CROIX-PIERCE- INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD... ST. CLOUD...ELK RIVER...BENSON...MONTEVIDEO...WILLMAR... LITCHFIELD...MONTICELLO...MINNEAPOLIS...BLAINE...ST. PAUL... STILLWATER...OLIVIA...HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE... BURNSVILLE...ST. PETER...LE SUEUR...FARIBAULT...RED WING... MANKATO...WASECA...OWATONNA...HUDSON...NEW RICHMOND... RIVER FALLS...PRESCOTT 605 AM CDT THU AUG 21 2014 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF MINNESOTA AND WEST CENTRAL WISCONSIN HAS BEEN CANCELLED. THUNDERSTORM ACTIVITY IS GRADUALLY WANING AND IS BECOMING LESS ORGANIZED. THEREFORE...WIDESPREAD HEAVY RAINFALL AND FLASH FLOODING ARE NO LONGER EXPECTED. $$ BORGHOFF
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 12:24 AM CDT | Special Weather Statement | MPX | Lac qui Parle | 36 min |
| Aug 21, 12:52 AM CDT | Special Weather Statement | MPX | Stevens | 53 min |
| Aug 21, 2:01 AM CDT | Areal Flood Warning | MPX | Stevens, Swift | 6 hr |
| Aug 21, 2:50 AM CDT | Special Weather Statement | MPX | Brown, Martin, Watonwan | 85 min |
| Aug 21, 3:07 AM CDT | Special Weather Statement | MPX | Chippewa, Kandiyohi, Pope, Swift | 83 min |
| Aug 21, 3:53 AM CDT | Areal Flood Warning | MPX | Brown, Watonwan | 5 hr |
| Aug 21, 4:20 AM CDT | Severe Thunderstorm Warning | MPX | Martin | 40 min |
| Aug 21, 4:31 AM CDT | Special Weather Statement | MPX | Blue Earth, Nicollet | 59 min |
| Aug 21, 4:47 AM CDT | Severe Thunderstorm Warning | MPX | Faribault | 43 min |
| Aug 21, 5:10 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Waseca | 50 min |
| Aug 21, 7:16 AM CDT | Heat Advisory | MPX | Blue Earth, Brown, Carver, Dakota, Faribault, Freeborn and 14 more | 13 hr |
| Aug 21, 6:20 PM CDT | Special Weather Statement | MPX | Watonwan | 25 min |
Nearby
Flash Flood Watches in Minnesota, 2014Flash Flood Watches in Wisconsin, 2014Every flash flood watch in 2014
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.