Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 122, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 11, 2012, 7:55 PM MDT for 4 counties in North Dakota. It was in force for 36 min. 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
- Jul 11, 2012, 7:55 PM MDT (01:55 UTC)
- Expired
- Jul 11, 2012, 8:31 PM MDT
- In force
- 36 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Dunn County, ND, Mercer County, ND, Morton County, ND, Stark County, ND
The radar
The Bismarck radar (KBIS), 109 km from the middle of the area, began a volume at 01:56 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 |
|---|---|---|---|
| Jul 11, 7:56 PM MDT | HAIL 1 | Taylor, ND | HAIL LASTED FOR 15 MINUTES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 1 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 1.9 hours before the alert went out and 114 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
- 1146 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 2578 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
932 WUUS53 KBIS 120155 SVRBIS NDC025-057-059-089-120300- /O.NEW.KBIS.SV.W.0122.120712T0155Z-120712T0300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BISMARCK ND 755 PM MDT WED JUL 11 2012 THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN MERCER COUNTY IN SOUTH CENTRAL NORTH DAKOTA NORTHWESTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA SOUTHEASTERN DUNN COUNTY IN SOUTHWEST NORTH DAKOTA NORTHEASTERN STARK COUNTY IN SOUTHWEST NORTH DAKOTA * UNTIL 900 PM MDT/1000 PM CDT/ * AT 752 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR TAYLOR...OR 19 MILES EAST OF DICKINSON...AND MOVING EAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... RICHARDTON AND HEBRON. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...TAKE SHELTER IN A STURDY BUILDING...AND STAY AWAY FROM WINDOWS. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4704 10191 4672 10203 4686 10255 4706 10248 TIME...MOT...LOC 0156Z 281DEG 17KT 4693 10237 WIND...HAIL 60MPH 1.50IN $$ AYD
3 follow-up statements
617 WWUS53 KBIS 120209 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 909 PM CDT WED JUL 11 2012 NDC025-057-059-089-120300- /O.CON.KBIS.SV.W.0122.000000T0000Z-120712T0300Z/ MERCER ND-STARK ND-MORTON ND-DUNN ND- 809 PM MDT WED JUL 11 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN DUNN...NORTHWESTERN MORTON...NORTHEASTERN STARK AND SOUTHWESTERN MERCER COUNTIES UNTIL 900 PM MDT/1000 PM CDT/... AT 804 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR RICHARDTON...OR 23 MILES EAST OF DICKINSON...MOVING EAST AT 20 MPH. IN ADDITION...AT 756 PM MDT...QUARTER SIZE HAIL WAS REPORTED IN TAYLOR WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... HEBRON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT 701-223-4582. && LAT...LON 4706 10235 4704 10191 4672 10203 4683 10245 TIME...MOT...LOC 0209Z 281DEG 17KT 4692 10228 WIND...HAIL 60MPH 1.50IN $$ KS/AYD
549 WWUS53 KBIS 120221 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 921 PM CDT WED JUL 11 2012 NDC025-057-059-089-120300- /O.CON.KBIS.SV.W.0122.000000T0000Z-120712T0300Z/ MERCER ND-STARK ND-MORTON ND-DUNN ND- 821 PM MDT WED JUL 11 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN DUNN...NORTHWESTERN MORTON...NORTHEASTERN STARK AND SOUTHWESTERN MERCER COUNTIES UNTIL 900 PM MDT/1000 PM CDT/... AT 818 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR RICHARDTON...OR 27 MILES EAST OF DICKINSON...MOVING EAST AT 20 MPH. LOCATIONS IMPACTED INCLUDE... HEBRON. PRECAUTIONARY/PREPAREDNESS ACTIONS... REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN BISMARCK AT 701-223-4582. && LAT...LON 4705 10227 4704 10191 4672 10203 4680 10234 TIME...MOT...LOC 0222Z 281DEG 17KT 4691 10219 WIND...HAIL 60MPH 1.50IN $$ KS/AYD
862 WWUS53 KBIS 120231 SVSBIS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 931 PM CDT WED JUL 11 2012 NDC025-057-059-089-120241- /O.CAN.KBIS.SV.W.0122.000000T0000Z-120712T0300Z/ MERCER ND-STARK ND-MORTON ND-DUNN ND- 831 PM MDT WED JUL 11 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTHEASTERN DUNN... NORTHWESTERN MORTON...NORTHEASTERN STARK AND SOUTHWESTERN MERCER COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4705 10227 4704 10191 4672 10203 4680 10234 TIME...MOT...LOC 0231Z 281DEG 17KT 4690 10213 $$ KS/AYD
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 11, 5:21 PM MDT, 2 hours 34 minutes earlier.
Area forecast discussion, Jul 11, 5:21 PM MDT, 2 hours 34 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BISMARCK ND 621 PM CDT WED JUL 11 2012 .DISCUSSION...COLD FRONT ACROSS NORTHWEST NORTH DAKOTA WILL BE THE FOCUS FOR THUNDERSTORMS THIS WEDNESDAY EVENING. SEVERAL CELLS HAVE INITIATED ALONG THIS FRONTAL BOUNDARY WHICH EXTENDS FROM NEAR BEACH TO STANLEY TO SHERWOOD. WILL UPDATE THUNDERSTORMS ACROSS THE NORTHWEST THIS EVENING...RAISING THE CHANCE TO LIKELY. OTHERWISE CURRENT FORECAST OK FOR THIS EVENING. LOOKS LIKE THE SOUTHWEST COUNTIES...BOWMAN...SLOPE STARK MAY BE AROUND TODAY. && .AVIATION...A COLD FRONT ACROSS NORTHWEST NORTH DAKOTA AT 23Z/6 PM CDT WILL MOVE SLOWLY EAST AND WILL BE THE FOCUS FOR SCATTERED THUNDERSTORMS AT KDIK/KMOT/KBIS/KISN THROUGH 03-06Z. AFTER 06Z THE THUNDERSTORMS ARE EXPECTED TO DISSIPATE. VFR EXPECTED AT ALL TAF SITES. && .BIS WATCHES/WARNINGS/ADVISORIES... NONE. && SHORT TERM...WAA AVIATION...WAA
Hazardous weather outlook, Jul 11, 4:31 AM MDT, 15 hours 24 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BISMARCK ND 531 AM CDT WED JUL 11 2012 NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-121045- DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD- MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-OLIVER-MCLEAN-SHERIDAN-WELLS- FOSTER-GOLDEN VALLEY-BILLINGS-STARK-MORTON-BURLEIGH-KIDDER- STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN- LA MOURE-MCINTOSH-DICKEY- 531 AM CDT WED JUL 11 2012 /431 AM MDT WED JUL 11 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL NORTH DAKOTA...NORTHWEST NORTH DAKOTA...SOUTH CENTRAL NORTH DAKOTA...SOUTHEAST NORTH DAKOTA AND SOUTHWEST NORTH DAKOTA. .DAY ONE...TODAY AND TONIGHT THERE IS A CHANCE OF THUNDERSTORMS TODAY AND A GOOD CHANCE TONIGHT AS A COLD FRONT IS FORECAST TO ENTER WESTERN NORTH DAKOTA THIS AFTERNOON AND CENTRAL NORTH DAKOTA TONIGHT. A FEW STORMS MAY BE STRONG OR POSSIBLY SEVERE...BUT THE THREAT IS NOT HIGH ENOUGH THAT A WIDESPREAD SEVERE EVENT IS EXPECTED. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A GOOD CHANCE OF THUNDERSTORMS THURSDAY...AND THURSDAY NIGHT IN THE JAMES RIVER BASIN. SOME STORMS MAY BE SEVERE...ESPECIALLY ALONG AND EAST OF A LINE FROM ROUGHLY BOTTINEAU TO BISMARCK. THE CHANCE FOR THUNDERSTORMS RETURNS ON THE WEEKEND...WITH SLIGHT CHANCES SATURDAY...AND A BETTER CHANCE FOR STORMS ON SATURDAY NIGHT AND SUNDAY. SLIGHT CHANCES FOR THUNDERSTORMS ARE EXPECTED LATE MONDAY INTO TUESDAY AS WELL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT. JV
In the hours before
Local storm report, Jul 11, 7:37 PM MDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
837 PM CDT WED JUL 11 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0821 PM HAIL 4 NNE REGENT 46.48N 102.52W
07/11/2012 E1.00 INCH HETTINGER ND TRAINED SPOTTER
&&
KSIMOSKOLocal storm report, Jul 11, 7:38 PM MDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
838 PM CDT WED JUL 11 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0821 PM TSTM WND GST 4 NNE REGENT 46.48N 102.52W
07/11/2012 E60 MPH HETTINGER ND TRAINED SPOTTER
&&
KSIMOSKOLocal storm report, Jul 11, 7:40 PM MDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
840 PM CDT WED JUL 11 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0828 PM HAIL 3 NE DICKINSON 46.91N 102.75W
07/11/2012 E2.00 INCH STARK ND AMATEUR RADIO
2 INCH HAIL REPORTED BY AMATURE RADIO.
&&
ABELINGLocal storm report, Jul 11, 7:43 PM MDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
843 PM CDT WED JUL 11 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0806 PM HAIL NEW HRADEC 47.00N 102.88W
07/11/2012 E1.75 INCH DUNN ND PUBLIC
DAMAGE TO CROPS...HOMES AND VEHICLES REPORTED. NO
FURTHER DETAILS. REPORT RELAYED BY MEDIA.
&&
KSIMOSKOLocal storm report, Jul 11, 7:44 PM MDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
844 PM CDT WED JUL 11 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0835 PM HAIL 5 NE DICKINSON 46.93N 102.72W
07/11/2012 M1.75 INCH STARK ND CO-OP OBSERVER
HAIL BEGAN 830 PM CDT LASTED 12 MINUTES.
&&
ABELINGSpecial weather statement, Jul 11, 7:48 PM MDT, 7 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BISMARCK ND 848 PM CDT WED JUL 11 2012 NDZ019-021-120245- MCLEAN-MERCER- 848 PM CDT WED JUL 11 2012 ...SPECIAL WEATHER STATEMENT... AT 848 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER CENTRAL MERCER COUNTY...MOVING EAST AT 25 MPH. NICKEL SIZE HAIL...WINDS GREATER THAN 30 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... DAKOTA WATERS RECREATION AREA... BEULAH BAY RECREATION AREA... BEULAH... HAZEN BAY RECREATION AREA... HAZEN... PICK CITY... STANTON... RIVERDALE... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. HEINERT/SCHECK
The office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:30 PM MDT | Severe Thunderstorm Warning | BIS | Dunn | 60 min |
| Jul 11, 6:41 PM MDT | Severe Thunderstorm Warning | BIS | Hettinger | 64 min |
| Jul 11, 6:56 PM MDT | Severe Thunderstorm Warning | BIS | Dunn, Stark | 64 min |
| Jul 11, 8:47 PM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton, Oliver | 58 min |
| Jul 11, 9:37 PM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Emmons, Kidder | 38 min |
| Jul 11, 10:10 PM MDT | Severe Thunderstorm Warning | BIS | Burleigh, Kidder | 27 min |
| Jul 12, 2:01 PM MDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Renville, Ward | 59 min |
| Jul 12, 2:59 PM MDT | Severe Thunderstorm Warning | BIS | McHenry | 61 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2012Every severe thunderstorm warning in 2012
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.