Alert archive / North Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 1, NWS Grand Forks, ND
NWS Grand Forks, ND issued this flash flood warning at Apr 13, 2011, 12:03 PM CDT for Barnes County, North Dakota. It was in force for 6 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 13, 2011, 12:03 PM CDT (17:03 UTC)
- Expired
- Apr 13, 2011, 6:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Flood severity
- None
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 84 km from the middle of the area, began a volume at 17:08 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 13, 5:25 PM CDT | FLASH FLOOD | Valley City, ND | A PLANT NURSERY WAS FLOODED AFTER THE PARTIAL FAILURE OF A PRIMARY DIKE. DUE TO THE CONSTRUCTION OF A SECONDARY DIKE BEHIND THE NURSERY...FLOODING HAS BEEN LIMITED TO A LOCALIZED AREA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 5.1 hours before the alert went out and 206 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
- 1404 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
111 WGUS53 KFGF 131704 FFWFGF NDC003-132300- /O.NEW.KFGF.FF.W.0001.110413T1704Z-110413T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1203 PM CDT WED APR 13 2011 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * FLASH FLOOD WARNING FOR VALLEY CITY DUE TO LEVEE BREACH... IN CENTRAL BARNES COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 600 PM CDT TODAY...WEDNESDAY APRIL 13. * AT 1157 AM CDT...LAW ENFORCEMENT REPORTED A LEVEE BREACH IN RIVER SIDE GARDENS IN THE SOUTHWEST PORTION OF VALLEY CITY. A CONTINGENCY DIKE IS BEING CONSTRUCTED. AT THIS TIME A MANDATORY EVACUATION HAS NOT BEEN ISSUED. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...VALLEY CITY. THE FOLLOWING STREAM IS INCLUDED IN THE WARNING...SHEYENNE RIVER. THE FOLLOWING TOWNSHIP IS INCLUDED IN THE WARNING...VALLEY TOWNSHIP. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL FLOAT MOST CARS DOWNSTREAM. TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS. && LAT...LON 4693 9798 4692 9797 4691 9803 4693 9802 $$ JK/AV
2 follow-up statements
931 WGUS73 KFGF 131753 FFSFGF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1248 PM CDT WED APR 13 2011 NDC003-132300- /O.CON.KFGF.FF.W.0001.000000T0000Z-110413T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BARNES ND- 1248 PM CDT WED APR 13 2011 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR CENTRAL BARNES COUNTY... AT 1248 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT A WEAK SPOT HAD BEEN FOUND ON A LEVEE NEAR THE RIVERSIDE GARDENS AREA IN THE SOUTHWEST PORTION OF VALLEY CITY. THE LEVEE HAS NOT FAILED. A CONTINGENCY LEVEE IS BEING CONSTRUCTED. SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE...VALLEY CITY. THE FOLLOWING STREAM IS INCLUDED IN THE WARNING...SHEYENNE RIVER. THE FOLLOWING TOWNSHIP IS INCLUDED IN THE WARNING...VALLEY TOWNSHIP. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO WATER OF UNKNOWN DEPTH. ONE OR TWO FEET OF WATER WILL FLOAT MOST CARS DOWNSTREAM. TURN AROUND DONT DROWN. AVOID DRIVING ON FLOODED ROADS. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. && LAT...LON 4693 9798 4692 9797 4691 9803 4693 9802 $$ AV
966 WGUS73 KFGF 132308 FFSFGF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 607 PM CDT WED APR 13 2011 NDC003-132316- /O.EXP.KFGF.FF.W.0001.000000T0000Z-110413T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BARNES ND- 607 PM CDT WED APR 13 2011 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR CENTRAL BARNES COUNTY... AT 607 PM CDT...OFFICIALS REPORTED THAT A CONTINGENCY DIKE HAS BEEN BUILT NEAR THE AREA WHERE A WEAK SPOT HAD EARLIER BEEN FOUND ON A LEVEE NEAR THE RIVERSIDE GARDENS IN THE SOUTHWEST PART OF VALLEY CITY. THUS...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. && LAT...LON 4693 9798 4692 9797 4691 9803 4693 9802 $$ CJS
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 1:46 PM CDT | Areal Flood Warning | FGF | Grand Forks, Traill, Walsh | 3 days |
| Apr 13, 2:04 PM CDT | Areal Flood Warning | FGF | Barnes, Cass, Ransom, Richland, Sargent | 3 days |
Nearby
Flash Flood Warnings in North Dakota, 2011Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.