Alert archive / North Dakota / Tornado Warnings in 2010

Tornado Warning 55, NWS Bismarck, ND

July 14, 2010Grant County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 14, 2010, 12:52 AM MDT for Grant County, North Dakota. It was in force for 23 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 14, 2010, 12:52 AM MDT (06:52 UTC)
Expired: Jul 14, 2010, 1:15 AM MDT
In force: 23 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

County Grant County, ND

The radar

The Bismarck radar (KBIS), 80 km from the middle of the area, began a volume at 06:54 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 14, 1:00 AM MDT	HAIL 2	10 Ssw Carson, ND	VERY LARGE HAIL TO AT LEAST TWO INCHES IN DIAMETER. HEAVY DAMAGE TO WHEAT AND SUNFLOWER CROPS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 13, 9:58 PM MDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 6.9 hours before the alert went out and 83 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: 2253 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: -48 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

833 
WFUS53 KBIS 140652 RRA
TORBIS
NDC037-140715-
/O.NEW.KBIS.TO.W.0055.100714T0652Z-100714T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
1252 AM MDT WED JUL 14 2010

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA...

* UNTIL 115 AM MDT

* AT 1249 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES SOUTH OF LEITH...OR 28 MILES NORTHEAST
  OF LEMMON...AND MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LEITH...CARSON...RALEIGH...ST. GERTRUDE AND LARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

VERY LARGE DESTRUCTIVE HAIL IS ALSO POSSIBLE WITH THIS STORM.

&&

LAT...LON 4615 10182 4639 10183 4647 10131 4638 10131
      4636 10127 4624 10123 4607 10139 4607 10143
TIME...MOT...LOC 0652Z 267DEG 30KT 4621 10167

$$

AYD

1 follow-up statement

159 
WWUS53 KBIS 140703
SVSBIS

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
203 AM CDT WED JUL 14 2010

NDC037-140715-
/O.CON.KBIS.TO.W.0055.000000T0000Z-100714T0715Z/
GRANT ND-
103 AM MDT WED JUL 14 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL GRANT COUNTY UNTIL
115 AM MDT...

AT 1259 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 12 MILES SOUTH OF LEITH...OR 34 MILES NORTHEAST OF
LEMMON...MOVING EAST AT 35 MPH.

LOCATIONS IMPACTED INCLUDE...
  RALEIGH...LARK AND ST. GERTRUDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

LARGE DESTRUCTIVE HAIL IS ALSO POSSIBLE WITH THIS STORM.
&&

LAT...LON 4616 10167 4640 10174 4647 10131 4638 10131
      4636 10127 4624 10123 4607 10139 4607 10143
TIME...MOT...LOC 0702Z 266DEG 33KT 4619 10151

$$

AYD

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jul 13, 1:27 PM MDT, 11 hours 25 minutes earlier.

Area forecast discussion, Jul 13, 1:27 PM MDT, 11 hours 25 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
227 PM CDT TUE JUL 13 2010

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...
THE SURFACE COLD FRONT HAS MOVED THROUGH MINOT AND
GARRISON...BUT AS THE MODELS ADVERTISED THE FRONT HAS STAGNATED
OVER THE BISMARCK AREA RESULTING IN A TILTED FRONT. THUNDERSTORMS
HAVE DEVELOPED BETWEEN BISMARCK AND JAMESTOWN. THE STORMS ARE
MOVING NORTHEAST...BUT THE LINE IS MOVING SLOWLY NORTH. GOOD CAPE
AND SHEAR INDICATE A POTENTIAL FOR SEVERE THUNDERSTORMS...AND
POSSIBLY TORNADOES. SURFACE DEWPOINTS AND A K INDEX OF 35 OR
BETTER ALSO POINT TOWARD THE POTENTIAL FOR HEAVY RAIN. MOST LIKELY
SOME STORMS WILL PROMPT A SMALL STREAM AND URBAN FLOOD
ADVISORY...BUT IF ANY TRAINING OCCURS...MAY NEED A FLASH FLOOD
WARNING. THERE IS ALSO CONVECTION IN NORTHEAST MONTANA WHICH IS
MOVING EAST...SO EVEN THOUGH THE DEWPOINTS AT WILLISTON AND
DICKINSON HAVE DROPPED TO LESS THAN 50 DEGREES...CONTINUE TO SEE
POTENTIAL FOR CONVECTION IN THE WEST TONIGHT. WEDNESDAY THE UPPER
LEVEL LOW WILL MOVE ACROSS SOUTHERN SASKATCHEWAN AND MANITOBA.
THIS IS FAVORABLE FOR STRONG WINDS...ALTHOUGH IT APPEARS AT THIS
TIME THAT THEY WILL REMAIN BELOW ADVISORY CRITERIA. AGAIN...THERE
IS SOME POTENTIAL FOR CONVECTION...MAINLY ACROSS THE NORTH AND FAR
EASTERN COUNTIES. RIDGING ALOFT BEHIND THE LOW WEDNESDAY NIGHT
THROUGH FRIDAY SHOULD LIMIT THE CHANCE OF PRECIPITATION.
TEMPERATURES WILL TREND DOWN ON WEDNESDAY...BUT SHOULD SEE A
RETURN TO WARMER TEMPERATURE THURSDAY AND FRIDAY.

.LONG TERM...SATURDAY THROUGH TUESDAY
THE UPPER LEVEL PATTERN CONTINUES TO ALLOW UPPER LEVEL SHORT
WAVES TO MOVE THROUGH THE AREA ALONG WITH THEIR ASSOCIATED SURFACE
LOWS. CONSEQUENTLY...THE LONG TERM FORECAST IS FOR OFF AND ON
CHANCES OF THUNDERSTORMS WITH SEASONAL TEMPERATURES.

&&
.AVIATION...THUNDERSTORMS...SOME SEVERE...CAN BE EXPECTED THIS
EVENING AS A SURFACE TROUGH MOVES FROM CENTRAL NORTH DAKOTA INTO
THE RED RIVER VALLEY. IN ADDITION THERE IS A CHANCE OF SHOWERS AND
THUNDERSTORMS BEHIND THE FRONT...ALTHOUGH WITH LOW SURFACE
DEWPOINTS...BASES SHOULD BE FAIRLY HIGH. WEDNESDAY THE THREAT OF
THUNDERSTORMS WILL CONTINUE ACROSS THE NORTH AND EAST. STRONG WEST
WINDS WITH STRONG GUSTS ARE LIKELY THROUGH THE AFTERNOON IN THE
WEST AND CENTRAL PARTS OF THE STATE.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

TSW

Hazardous weather outlook, Jul 13, 8:47 PM MDT, 4 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
947 PM CDT TUE JUL 13 2010

NDZ020-022-023-025-033>037-040>048-050-051-141100-
OLIVER-SHERIDAN-WELLS-FOSTER-STARK-MORTON-BURLEIGH-KIDDER-
STUTSMAN-SLOPE-HETTINGER-GRANT-BOWMAN-ADAMS-SIOUX-EMMONS-LOGAN-
LA MOURE-MCINTOSH-DICKEY-
947 PM CDT TUE JUL 13 2010 /847 PM MDT TUE JUL 13 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
AND SOUTHEAST NORTH DAKOTA.

.DAY ONE...TONIGHT

THUNDERSTORMS ARE EXPECTED TO DEVELOP OVERNIGHT AND MOVE ACROSS
MUCH OF SOUTHERN NORTH DAKOTA. SOME SEVERE STORMS ARE
POSSIBLE...WITH LARGE HAIL AND DAMAGING STRAIGHT LINE WINDS THE
MAIN THREATS. ISOLATED HEAVY RAINFALL IS POSSIBLE...BUT IS NOT
EXPECTED TO CAUSE A SIGNIFICANT THREAT OF FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A FEW THUNDERSTORMS ARE POSSIBLE MAINLY SATURDAY AND SATURDAY
NIGHT...BUT THE THREAT FOR SEVERE WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS POSSIBLE OVERNIGHT INTO EARLY WEDNESDAY MORNING.

NDZ001>005-009>013-017>019-021-031-032-141100-
DIVIDE-BURKE-RENVILLE-BOTTINEAU-ROLETTE-WILLIAMS-MOUNTRAIL-WARD-
MCHENRY-PIERCE-MCKENZIE-DUNN-MERCER-MCLEAN-GOLDEN VALLEY-BILLINGS-
947 PM CDT TUE JUL 13 2010 /847 PM MDT TUE JUL 13 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL THROUGH
NORTHWEST NORTH DAKOTA.

.DAY ONE...TONIGHT

ISOLATED THUNDERSTORMS ARE POSSIBLE OVERNIGHT. NO SEVERE WEATHER
IS EXPECTED...BUT A FEW STORMS MAY PRODUCE HAIL AROUND PENNY SIZE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A FEW THUNDERSTORMS ARE POSSIBLE MAINLY SATURDAY AND SATURDAY
NIGHT...BUT THE THREAT FOR SEVERE WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED.

KINNEY

In the hours before

Local storm report, Jul 14, 12:07 AM MDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
107 AM CDT WED JUL 14 2010

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

0104 AM     HAIL             CANNON BALL             46.39N 100.59W
07/14/2010  E4.25 INCH       SIOUX              ND   PUBLIC

&&

SWICHE

Local storm report, Jul 14, 12:23 AM MDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
123 AM CDT WED JUL 14 2010

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

0118 AM     HAIL             PRAIRIE KNIGHTS RESORT  46.27N 100.64W
07/14/2010  E2.75 INCH       SIOUX              ND   LAW ENFORCEMENT

            ALSO 50 TO 60 MPH WINDS

&&

RK

Local storm report, Jul 14, 12:27 AM MDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
127 AM CDT WED JUL 14 2010

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

1220 AM     HAIL             13 S RHAME              46.04N 103.65W
07/14/2010  E1.75 INCH       BOWMAN             ND   EMERGENCY MNGR

            HAIL BROKE WINDSHIELD OUT OF TRUCK.

&&

SWICHE

Local storm report, Jul 14, 12:32 AM MDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
132 AM CDT WED JUL 14 2010

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

1218 AM     HAIL             REGENT                  46.42N 102.56W
07/14/2010  E1.75 INCH       HETTINGER          ND   PUBLIC

            2.25 INCHES OF RAIN.

&&

SWICHE

Local storm report, Jul 14, 12:35 AM MDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
135 AM CDT WED JUL 14 2010

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

0106 AM     HAIL             CANNON BALL             46.39N 100.59W
07/14/2010  E2.75 INCH       SIOUX              ND   PUBLIC

            BROKE OUT WINDOWS IN HOUSE.

&&

SWICHE

Local storm report, Jul 14, 12:51 AM MDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BISMARCK ND
151 AM CDT WED JUL 14 2010

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

0145 AM     HAIL             FLASHER                 46.46N 101.23W
07/14/2010  E1.00 INCH       MORTON             ND   TRAINED SPOTTER

&&

SWICHE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 9:42 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Stark	63 min
Jul 13, 9:57 PM MDT	Tornado Warning	BIS	Grant, Hettinger	33 min
Jul 13, 10:24 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger, Slope, Stark	66 min
Jul 13, 10:29 PM MDT	Tornado Warning	BIS	Grant	31 min
Jul 13, 10:48 PM MDT	Areal Flood Advisory	BIS	Adams, Bowman, Hettinger, Slope	5 hr
Jul 13, 10:53 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Slope	37 min
Jul 13, 10:58 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	62 min
Jul 13, 10:59 PM MDT	Tornado Warning	BIS	Grant, Morton, Sioux	46 min
Jul 13, 11:07 PM MDT	Tornado Warning	BIS	Adams, Bowman, Hettinger, Slope	23 min
Jul 13, 11:10 PM MDT	Tornado Warning	BIS	Grant, Hettinger	35 min
Jul 13, 11:14 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	16 min
Jul 13, 11:25 PM MDT	Flash Flood Warning	BIS	Adams, Bowman, Grant, Hettinger, Morton, Slope and 1 more	4 hr
Jul 13, 11:27 PM MDT	Tornado Warning	BIS	Adams, Hettinger	48 min
Jul 13, 11:29 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	61 min
Jul 13, 11:36 PM MDT	Tornado Warning	BIS	Grant, Hettinger	39 min
Jul 13, 11:42 PM MDT	Tornado Warning	BIS	Emmons, Morton, Sioux	48 min
Jul 13, 11:44 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	61 min
Jul 14, 12:08 AM MDT	Tornado Warning	BIS	Grant, Morton	52 min
Jul 14, 12:14 AM MDT	Tornado Warning	BIS	Adams, Grant, Hettinger, Sioux	46 min
Jul 14, 12:19 AM MDT	Tornado Warning	BIS	Adams, Bowman	41 min
Jul 14, 12:25 AM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	50 min
Jul 14, 12:27 AM MDT	Tornado Warning	BIS	Emmons, Logan, McIntosh	48 min
Jul 14, 12:45 AM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton	60 min
Jul 14, 12:49 AM MDT	Flash Flood Warning	BIS	Burleigh, Dickey, Emmons, Grant, Kidder, LaMoure and 6 more	6 hr
Jul 14, 12:52 AM MDT	Tornado Warning	BIS	Emmons, Morton, Sioux	23 min
Jul 14, 1:00 AM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	45 min
Jul 14, 1:10 AM MDT	Tornado Warning	BIS	Grant, Morton, Sioux	35 min
Jul 14, 1:13 AM MDT	Tornado Warning	BIS	Dickey, LaMoure, Logan, McIntosh	32 min
Jul 14, 1:15 AM MDT	Tornado Warning	BIS	Emmons, Morton, Sioux	30 min
Jul 14, 1:27 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	48 min
Jul 14, 1:34 AM MDT	Tornado Warning	BIS	Emmons, Logan, McIntosh	41 min
Jul 14, 1:40 AM MDT	Tornado Warning	BIS	Dickey, LaMoure, Logan, McIntosh	65 min
Jul 14, 1:42 AM MDT	Severe Thunderstorm Warning	BIS	Emmons, Grant, Morton, Sioux	63 min
Jul 14, 1:44 AM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Morton, Sioux	61 min
Jul 14, 1:58 AM MDT	Tornado Warning	BIS	Sioux	32 min
Jul 14, 2:14 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	31 min
Jul 14, 2:16 AM MDT	Tornado Warning	BIS	LaMoure, Logan	34 min
Jul 14, 2:34 AM MDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan	41 min
Jul 14, 2:43 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	47 min
Jul 14, 3:06 AM MDT	Severe Thunderstorm Warning	BIS	Kidder, LaMoure, Logan, Stutsman	54 min
Jul 14, 3:24 AM MDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	51 min
Jul 14, 3:28 AM MDT	Tornado Warning	BIS	Emmons, Sioux	32 min

Nearby

Tornado Warnings in North Dakota, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.