Alert archive / North Dakota / Flash Flood Warnings in 2011
Flash Flood Warning 47, NWS Bismarck, ND
NWS Bismarck, ND issued this flash flood warning at Aug 15, 2011, 9:18 PM CDT for Burleigh County, Morton County, North Dakota. It was in force for 6 hr. 3 reports 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
- Aug 15, 2011, 9:18 PM CDT (02:18 UTC)
- Expired
- Aug 16, 2011, 3:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Flood severity
- None
Counties Burleigh County, ND, Morton County, ND
The radar
The Bismarck radar (KBIS), 15 km from the middle of the area, began a volume at 02:19 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 |
|---|---|---|---|
| Aug 15, 9:20 PM CDT | FLASH FLOOD | Bismarck, ND | TRAINED SPOTTER REPORTED FLOODING AT THE BISMARCK EXPRESSWAY BRIDGE...CARS CANNOT DRIVE THROUGH WATER... OTHER REPORTS OF FLOODING ALONG BISMARCK EXPRESSWAY. |
| Aug 15, 9:39 PM CDT | FLASH FLOOD | Bismarck, ND | STREET FLOODING ON SOUTH 3RD ST CLOSE TO RENO. WATER UP TO SIDEWALKS. |
| Aug 15, 9:40 PM CDT | FLASH FLOOD | Bismarck, ND | ONE TO 2 FEET OF WATER FLOODING THE INTERSECTION OF AIRPORT ROAD AND UNIVERSITY DRIVE. ALSO 1 TO 2 FEET OF WATER FLOODING ALONG SOUTH 12TH STREET BETWEEN BASIN AVE AND EXPRESSWAY. FLOODING ALONG EXPRESSWAY BETWEEN SOUTH 7TH TO AROUND WALMART. |
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 00:00Z, 2.3 hours before the alert went out and 18 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
- 2516 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1581 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
153
WGUS53 KBIS 160218
FFWBIS
NDC015-059-160830-
/O.NEW.KBIS.FF.W.0047.110816T0218Z-110816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
918 PM CDT MON AUG 15 2011
THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
WESTERN BURLEIGH COUNTY IN SOUTH CENTRAL NORTH DAKOTA...
* UNTIL 330 AM CDT TUESDAY
* AT 917 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THE 9TH
STREET OVERPASS IN BISMARCK WAS FLOODED. ALMOST 2 INCHES OF RAIN
HAS FALLEN ON THE SOUTH SIDE OF BISMARCK SINCE 840 PM CDT. AN
ADDITIONAL 1 INCH OF RAINFALL IS EXPECTED.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BISMARCK AND MANDAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
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.
REPORT FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
BISMARCK AT 701-223-4582.
&&
LAT...LON 4698 10104 4698 10094 4701 10088 4701 10048
4664 10048 4664 10107
$$
MERRIMAN2 follow-up statements
060
WGUS73 KBIS 160329
FFSBIS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1029 PM CDT MON AUG 15 2011
NDC015-059-160830-
/O.CON.KBIS.FF.W.0047.000000T0000Z-110816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLEIGH ND-MORTON ND-
1029 PM CDT MON AUG 15 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN MORTON AND
WESTERN BURLEIGH COUNTIES UNTIL 330 AM CDT...
AT 1017 PM CDT...THUNDERSTORMS WITH VERY HEAVY RAINFALL HAVE MOVED
THROUGH THE BISMARCK AND MANDAN AREAS. ANOTHER LINE OF STORMS WAS
MOVING ACROSS SOUTHWEST NORTH DAKOTA...AND WILL LIKELY REACH THE
BISMARCK AND MANDAN AREAS BETWEEN MIDNIGHT AND 3 AM CDT. ADDITIONAL
RAINFALL IS EXPECTED WITH ONE HALF TO ONE INCH MORE RAIN POSSIBLE
TONIGHT.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BISMARCK AND MANDAN.
AS OF 1015 PM CDT...THE NATIONAL WEATHER FORECAST OFFICE IN BISMARCK
HAD RECEIVED 1.81 INCHES OF RAIN SINCE 830 PM THIS EVENING. NUMEROUS
REPORTS OF STREET FLOODING...FLOODING UP TO SIDEWALKS...AND ROADS
BLOCKED BY WATER ACROSS THE SOUTH SIDE OF BISMARCK HAVE BEEN
RECEIVED BY THE NATIONAL WEATHER SERVICE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN BISMARCK.
&&
LAT...LON 4698 10104 4698 10094 4701 10088 4701 10048
4664 10048 4664 10107
$$
ABELING473
WGUS73 KBIS 160551
FFSBIS
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1251 AM CDT TUE AUG 16 2011
NDC015-059-160830-
/O.CON.KBIS.FF.W.0047.000000T0000Z-110816T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLEIGH ND-MORTON ND-
1251 AM CDT TUE AUG 16 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHEASTERN MORTON AND
WESTERN BURLEIGH COUNTIES UNTIL 330 AM CDT...
AT 1243 AM CDT...A LINE OF THUNDERSTORMS WITH HEAVY RAINFALL IS
APPROACHING THE WARNED AREA. ADDITIONAL RAINFALL OF ONE HALF TO
THREE QUARTERS OF ONE INCH IS EXPECTED BETWEEN NOW AND 2 AM CDT.
EARLIER ON MONDAY EVENING...THUNDERSTORMS WITH VERY HEAVY RAINFALL
RESULTED IN FLASH FLOOD CONDITIONS OVER THE WARNED AREA...INCLUDING
THE BISMARCK AND MANDAN AREA. DITCHES REMAIN FULL OR NEARLY
FULL...ALONG WITH SATURATED GROUND CONDITIONS.
RUNOFF FROM THIS ADDITIONAL RAINFALL WILL CAUSE FLASH FLOOD
CONDITIONS TO OCCUR AGAIN IN THE WARNED AREA. SOME LOCATIONS THAT
WILL EXPERIENCE FLOODING INCLUDE...BISMARCK AND MANDAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN BISMARCK.
&&
LAT...LON 4698 10104 4698 10094 4701 10088 4701 10048
4664 10048 4664 10107
$$
HEINERTThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 7:07 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 68 min |
| Aug 15, 7:10 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 65 min |
| Aug 15, 7:13 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 62 min |
| Aug 15, 7:20 PM CDT | Tornado Warning | BIS | Grant, Morton | 25 min |
| Aug 15, 7:39 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 66 min |
| Aug 15, 8:03 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 57 min |
| Aug 15, 8:14 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Hettinger | 61 min |
| Aug 15, 8:47 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 28 min |
| Aug 15, 8:52 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 53 min |
| Aug 15, 9:09 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Morton, Sioux | 66 min |
| Aug 15, 9:17 PM CDT | Severe Thunderstorm Warning | BIS | Grant | 40 min |
| Aug 15, 9:25 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder, Sheridan | 44 min |
| Aug 15, 9:36 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder, Logan | 54 min |
| Aug 15, 10:25 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Bowman, Hettinger, Slope | 35 min |
| Aug 15, 11:21 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Grant, Hettinger, Sioux | 54 min |
| Aug 16, 12:11 AM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 64 min |
| Aug 16, 3:08 AM CDT | Areal Flood Advisory | BIS | Emmons, Logan, McIntosh | 4 hr |
| Aug 16, 9:55 AM CDT | Wind Advisory | BIS | Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 18 more | 6 hr |
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.