Alert archive / North Dakota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 239, NWS Bismarck, ND

July 11, 2005Morton County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 11, 2005, 12:54 AM CDT for Morton County, North Dakota. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 11, 2005, 12:54 AM CDT (05:54 UTC)
Expired: Jul 11, 2005, 1:28 AM CDT
In force: 34 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Morton County, ND

The radar

The Bismarck radar (KBIS), 18 km from the middle of the area, began a volume at 05:55 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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, 5.9 hours before the alert went out and 19 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 4621 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1484 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 22.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KBIS 110554
SVRBIS
NDC059-110700-
/O.NEW.KBIS.SV.W.0239.050711T0554Z-050711T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1254 AM CDT MON JUL 11 2005

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MORTON COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 200 AM CDT

* AT 1250 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED 10 MILES SOUTH OF ST. ANTHONY...OR ABOUT 25 MILES
  SOUTH OF BISMARCK...AND MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ST. ANTHONY AROUND 110 AM CDT
  HUFF AROUND 125 AM CDT

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 4681 10084 4676 10085 4673 10079 4669 10080
      4664 10072 4666 10066 4660 10062 4640 10082
      4640 10085 4641 10094 4646 10107

$$

JC

2 follow-up statements

000 
WWUS53 KBIS 110620
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
120 AM CDT MON JUL 11 2005

NDC059-110700-
/O.CON.KBIS.SV.W.0239.000000T0000Z-050711T0700Z/
MORTON ND-
120 AM CDT MON JUL 11 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 200 AM CDT FOR
SOUTHEASTERN MORTON COUNTY...

AT 115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. 
THIS STORM WAS LOCATED 6 MILES NORTHEAST OF ST. ANTHONY...OR ABOUT 11
MILES SOUTH OF BISMARCK...MOVING NORTHEAST AT 30 MPH.

LAT...LON 4681 10084 4676 10085 4673 10079 4669 10080
      4664 10072 4666 10066 4660 10062 4640 10082
      4640 10085 4641 10094 4646 10107

$$

JC

000 
WWUS53 KBIS 110628
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
128 AM CDT MON JUL 11 2005

NDC059-110638-
/O.CAN.KBIS.SV.W.0239.000000T0000Z-050711T0700Z/
MORTON ND-
128 AM CDT MON JUL 11 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MORTON COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A
SIGNIFICANT THREAT.

LAT...LON 4681 10084 4676 10085 4673 10079 4669 10080
      4664 10072 4666 10066 4660 10062 4640 10082
      4640 10085 4641 10094 4646 10107

$$

JC

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 10, 2:51 PM CDT, 10 hours 3 minutes earlier.

Area forecast discussion, Jul 10, 2:51 PM CDT, 10 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
251 PM CDT SUN JUL 10 2005

.SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT.
MAIN CONCERN IS FOR TONIGHT. A STALLED WEAK FRONT BISECTS THE CWA
AND AN UPPER TROUGH IS APPROACHING FROM THE WEST. GENERAL COOLING
ALOFT WILL BE AIDED BY A SHORT WAVE TO BREAK A MID LEVEL CAP LATE
THIS AFTERNOON.  EXPECT THUNDERSTORMS TO DEVELOP OVER THE WEST AND
THEN SPREAD INTO THE CENTRAL LATER THIS EVENING.  CAPES ARE
SIGNIFICANT AND SOME STORMS COULD HAVE DAMAGING WINDS AND LARGE
HAIL. ALSO...THE SYSTEM WILL BE MOVING QUITE SLOW TO THE EAST
TONIGHT...AND THERE MAY BE TRAINING OF STORMS AS THEY MOVE
NORTHEAST. SOME AREAS OF CENTRAL ND WERE DELUGED A FEW DAYS AGO
AND SOILS LIKELY REMAIN SATURATED.

THE UPPER TROUGH WILL EXIT THE AREA MONDAY AFTERNOON.  THEN THE
UPPER RIDGE WILL REBOUND AND BRING A RETURN OF DRY WEATHER WITH
ABOVE NORMAL TEMPERATURES THROUGH WEDNESDAY.

.LONG TERM...THURSDAY THROUGH SUNDAY NIGHT.
FEW CHANGES IN THE LONG TERM PERIOD. CONTINUED UNCERTAINTY ON UPPER
LEVEL PATTERN TOWARDS THE END OF THE WEEK AND INTO THE WEEKEND. HAVE
ADDED LOW POPS FOR TIME PERIODS THAT LOOK TO HAVE THE BEST CHANCE OF
PRECIP...BUT KEPT WEATHER MENTION OUT FOR NOW. GFS LONG AND DGEX NOW
BRING IN A SHORT WAVE INTO THE NORTHERN CONUS. PLACEMENT RIGHT NOW
IS WELL TO THE EAST AND WOULDT HAVE MUCH OF AN IMPACT ON WESTERN
AND CENTRAL ND WEATHER BESIDES A COOLING TREND.  12Z GFS80 HAS A
HIGHER AMPLITUDE TROUGH AND BRINGS IT RIGHT OVER THE FORECAST AREA.
SO...WELL HOLD OFF ONCE AGAIN ON ANY MAJOR CHANGES UNTIL MODELS
BECOME BETTER AGREEABLE IN LATER RUNS.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
...FLASH FLOOD WATCH CENTRAL ND TONIGHT...

&&

LM/NH

Hazardous weather outlook, Jul 10, 4:06 AM CDT, 20 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
406 AM CDT SUN JUL 10 2005

NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-110905-
ADAMS-BILLINGS-BOTTINEAU-BOWMAN-BURKE-BURLEIGH-DICKEY-DIVIDE-DUNN-
EMMONS-FOSTER-GOLDEN VALLEY-GRANT-HETTINGER-KIDDER-LA MOURE-LOGAN-
MCHENRY-MCINTOSH-MCKENZIE-MCLEAN-MERCER-MORTON-MOUNTRAIL-OLIVER-
PIERCE-RENVILLE-ROLETTE-SHERIDAN-SIOUX-SLOPE-STARK-STUTSMAN-WARD-
WELLS-WILLIAMS-
INCLUDING THE CITIES OF...WILLISTON...MINOT...JAMESTOWN...
DICKINSON...CROSBY...BOWMAN...BOTTINEAU...BISMARCK...MANDAN...
WATFORD CITY...WASHBURN...STANLEY...RUGBY...MOTT...MEDORA...LINTON...
HETTINGER...HARVEY...ELLENDALE...CARRINGTON...BEULAH...BELCOURT...
BEACH AND ASHLEY
406 AM CDT SUN JUL 10 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL NORTH
DAKOTA.

.DAY ONE...TODAY AND TONIGHT

A NEARLY STATIONARY SURFACE TROUGH FROM CENTRAL MANITOBA CANADA
THROUGH CENTRAL NORTH DAKOTA WILL BE THE MAIN FOCUS FOR THUNDERSTORM
DEVELOPMENT THIS AFTERNOON AND EVENING. THUNDERSTORMS OVER CENTRAL
MANITOBA CANADA WILL DEVELOP SOUTHWARD INTO WESTERN AND CENTRAL
NORTH DAKOTA THIS AFTERNOON. SOME STORMS MAY BECOME SEVERE THIS
AFTERNOON AND TONIGHT OVER WESTERN AND CENTRAL NORTH DAKOTA. THE
PRIMARY THREAT FROM THE STORMS WILL BE VERY LARGE HAIL AND DAMAGING
THUNDERSTORM WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

RGT

In the hours before

Local storm report, Jul 10, 8:28 PM CDT, 4 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
828 PM CDT SUN JUL 10 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     HAIL             NE MYLO                 48.64N 99.62W
07/10/2005  1.00 INCH        ROLETTE            ND   TRAINED SPOTTER

&&

KAW

Local storm report, Jul 10, 8:54 PM CDT, 4 hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
854 PM CDT SUN JUL 10 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0848 PM     HAIL             12 NW LINTON            46.39N 100.41W
07/10/2005  0.88 INCH        EMMONS             ND   TRAINED SPOTTER

0850 PM     HAIL             6 N CENTER              47.20N 101.30W
07/10/2005  0.88 INCH        OLIVER             ND   AMATEUR RADIO

&&

KAW

Local storm report, Jul 10, 9:05 PM CDT, 3 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
905 PM CDT SUN JUL 10 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0857 PM     TORNADO          10 N HARVEY             47.91N 99.93W
07/10/2005                   PIERCE             ND   BROADCAST MEDIA

&&
SAID IT WAS ON THE GROUND AT THIS TIME

KAW

Special weather statement, Jul 10, 9:58 PM CDT, 2 hours 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
958 PM CDT SUN JUL 10 2005

NDZ003-011-019-110327-
MERCER-RENVILLE-WARD-
INCLUDING THE CITIES OF...MINOT AND BEULAH
958 PM CDT SUN JUL 10 2005

SEVERE THUNDERSTORM WATCH NUMBER 634 CANCELLED FOR RENVILLE...
WARD...AND MERCER COUNTIES. THE WATCH REMAINS IN EFFECT FOR THE REST
OF CENTRAL NORTH DAKOTA UNTIL MIDNIGHT CDT.

VINING

Local storm report, Jul 10, 11:07 PM CDT, 1 hour 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
1107 PM CDT SUN JUL 10 2005

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1044 PM     HAIL             GOODRICH                47.48N 100.12W
07/10/2005  1.75 INCH        SHERIDAN           ND   BROADCAST MEDIA

&&

JTURNER

Special weather statement, Jul 11, 12:09 AM CDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1209 AM CDT MON JUL 11 2005

NDZ003>005-011>013-019>023-025-034>037-042-045>047-050-110510-
BOTTINEAU-BURLEIGH-EMMONS-FOSTER-GRANT-KIDDER-LOGAN-MCHENRY-MCINTOSH-
MCLEAN-MERCER-MORTON-OLIVER-PIERCE-RENVILLE-ROLETTE-SHERIDAN-SIOUX-
STUTSMAN-WARD-WELLS-
INCLUDING THE CITIES OF...MINOT...JAMESTOWN...BOTTINEAU...BISMARCK...
MANDAN...WASHBURN...RUGBY...LINTON...HARVEY...CARRINGTON...BEULAH...
BELCOURT AND ASHLEY
1209 AM CDT MON JUL 11 2005

...SEVERE THUNDERSTORM WATCH NUMBER 634 ALLOWED TO EXPIRE...

SEVERE THUNDERSTORM WATCH ISSUED EARLIER HAS BEEN ALLOWED TO
EXPIRE.

THUNDERSTORMS WILL CONTINUE OVER PARTS OF CENTRAL AND MOST OF
EAST CENTRAL NORTH DAKOTA FOR THE NEXT 2 TO 3 HOURS. THERE REMAINS
THE POSSIBILITY THAT A FEW STORMS MAY REACH SEVERE LEVELS WITH LARGE
HAIL...DAMAGING THUNDERSTORM WINDS...HEAVY RAIN AND DEADLY
LIGHTNING. IF THREATENING WEATHER APPROACHES SEEK SHELTER INDOORS.

RGT

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 7:38 PM CDT	Severe Thunderstorm Warning	BIS	Rolette	67 min
Jul 10, 7:44 PM CDT	Tornado Warning	BIS	Sheridan	46 min
Jul 10, 8:00 PM CDT	Tornado Warning	BIS	Rolette	45 min
Jul 10, 8:08 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	69 min
Jul 10, 8:23 PM CDT	Flash Flood Warning	BIS	McHenry, Pierce, Rolette, Sheridan	4 hr
Jul 10, 8:31 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan	47 min
Jul 10, 8:34 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	57 min
Jul 10, 8:35 PM CDT	Tornado Warning	BIS	Pierce	25 min
Jul 10, 8:41 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	34 min
Jul 10, 8:55 PM CDT	Severe Thunderstorm Warning	BIS	McLean	65 min
Jul 10, 8:59 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	61 min
Jul 10, 9:06 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	19 min
Jul 10, 9:14 PM CDT	Severe Thunderstorm Warning	BIS	Wells	40 min
Jul 10, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	30 min
Jul 10, 9:17 PM CDT	Flash Flood Warning	BIS	McLean	3 hr
Jul 10, 9:25 PM CDT	Severe Thunderstorm Warning	BIS	Sioux	65 min
Jul 10, 9:31 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Sheridan	59 min
Jul 10, 9:39 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan	66 min
Jul 10, 10:05 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	55 min
Jul 10, 10:09 PM CDT	Severe Thunderstorm Warning	BIS	Morton	66 min
Jul 10, 10:24 PM CDT	Severe Thunderstorm Warning	BIS	Pierce	47 min
Jul 10, 10:46 PM CDT	Flash Flood Warning	BIS	Bottineau	3 hr
Jul 10, 11:06 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	45 min
Jul 10, 11:17 PM CDT	Flash Flood Warning	BIS	Sioux	118 min
Jul 11, 12:30 AM CDT	Flash Flood Warning	BIS	McHenry, Pierce, Rolette, Sheridan	4 hr
Jul 11, 1:13 AM CDT	Flash Flood Warning	BIS	Sioux	2 hr
Jul 11, 1:15 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean	34 min
Jul 11, 1:39 AM CDT	Flash Flood Warning	BIS	Bottineau	3 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2005 Every severe thunderstorm warning in 2005

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.