Alert archive / North Dakota / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 54, NWS Bismarck, ND

June 21, 2014Emmons County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 21, 2014, 2:55 PM CDT for Emmons County, North Dakota. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 21, 2014, 2:55 PM CDT (19:55 UTC)
Expired: Jun 21, 2014, 3:40 PM CDT
In force: 45 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Emmons County, ND

The radar

The Bismarck radar (KBIS), 67 km from the middle of the area, began a volume at 19:55 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.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 7.9 hours before the alert went out and 64 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: 13 J/kg
Mixed-layer CIN: -255 J/kg
Mixed-layer LCL: 1795 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Jun 21, 2:20 PM CDT, 35 minutes earlier.

Area forecast discussion, Jun 21, 2:20 PM CDT, 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BISMARCK ND
220 PM CDT SAT JUN 21 2014

.SHORT TERM...(THIS EVENING THROUGH SUNDAY)
ISSUED AT 145 PM CDT SAT JUN 21 2014

CURRENT SURFACE ANALYSIS PLACES COLD FRONT PUSHING THROUGH WRN
ND...WHILE SRLY FLOW AHEAD OF THE FRONT CONTINUES TO ADVECT
MOISTURE INTO THE AREA. UPPER LEVEL ANALYSIS PLACES LOW SPINNING
ALONG THE MANITOBA/SASKATCHEWAN BORDER WITH ACTIVE SWRLY FLOW OVER
OUR AREA.

FOR THE REST OF THIS AFTERNOON INTO TONIGHT...SHOWERS AND
THUNDERSTORMS WILL START TO DEVELOP THIS AFTERNOON AS FRONT
CONTINUES TO WORK ITS WAY EASTWARD. AREA OF PRIMARY CONCERN FOR
SEVERE THREAT REMAINS OVER PTNS OF S CTRL ND INTO ERN ND. MODELS
CONTINUE TO SHOW THE STRONGEST INSTABILITY (1.5+ KJ/KG) OVER THIS
AREA WITH SUFFICENT SHEAR (~40 KT 0-6KM BULK) TO SUPPORT
SUPERCELLS. FLASH FLOODING CONCERNS ALSO OVER THIS AREA GIVEN PLENTY
OF MOISTURE TO WORK WITH AND ALREADY SATURATED GROUND. EXPECT
STORMS TO LINGER OVER AFOREMENTIONED AREAS THIS EVENING AHEAD OF
THE COLD FRONT IN STRONG THETA-E ADVECTION BEFORE SHIFTING EAST
OVERNIGHT.

ON SUNDAY...QUIETER AND COOLER CONDITIONS ARE EXPECTED IN THE WAKE
OF THE COLD FRONT WHILE UPPER LOW LINGERS OVER SWRN MANITOBA. HAVE
DRIED MOST AREAS OUT BUT WILL KEEP SOME POPS ALONG THE
INTERNATIONAL BORDER IN AREA OF STRONGER CYCLONIC FLOW.

.LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY)
ISSUED AT 145 PM CDT SAT JUN 21 2014

UPPER LEVEL LOW OVER MANITOBA WILL PUSH ANOTHER SHORTWAVE TROUGH AND
ASSOCIATED SURFACE FRONT FROM NORTH TO SOUTH MONDAY INTO MONDAY
EVENING. THE BEST CHANCES FOR PRECIPITATION WILL OCCUR OVER THE
NORTHERN PORTION OF THE STATE WITH SLIGHT CHANCES FARTHER SOUTH.
THAT BEING SAID...EXPECT SCATTERED SHOWERS AND THUNDERSTORMS NORTH
WITH ISOLATED ACTIVITY SOUTH. SEVERE WEATHER INDICES ARE NOT OVERLY
IMPRESSIVE AS WEAK SHEAR/15KT COMBINED WITH CAPE OF AROUND 800 J/KG
WILL BE ENOUGH TO GENERATE SOME THUNDERSTORMS...BUT NO SEVERE
WEATHER IS ANTICIPATED AT THIS TIME. COOLER ON TUESDAY WITH H85
TEMPERATURES RANGING FROM +14C IN THE SOUTHWEST TO +10C IN THE NORTH
CENTRAL. THAT WILL RESULT IN HIGHS IN THE UPPER 60S IN THE NORTH TO
TO THE LOWER 70S SOUTH. A TRANSITORY BROAD RIDGE WILL SCOOT ACROSS
WESTERN AND CENTRAL NORTH DAKOTA WEDNESDAY KEEPING THE THREAT OF ANY
SIGNIFICANT PRECIPITATION TO A MINIMUM/SLIGHT CHANCE. HOWEVER THIS
WILL CHANGE BEGINNING WEDNESDAY NIGHT AND CONTINUE THROUGH SATURDAY
AS A SOUTHWEST FLOW TO SOUTHERLY FLOW ALOFT SETS UP. THIS WILL
INCREASE THE LOW LEVEL MOISTURE FIELD WITH SEVERAL CHANCES OF
SHOWERS AND THUNDERSTORMS DURING THE PERIOD.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z SUNDAY AFTERNOON)
ISSUED AT 145 PM CDT SAT JUN 21 2014

A COLD FRONT WILL CONTINUE TO MOVE THROUGH THE AREA WITH WINDS
SHIFTING TOWARDS THE NORTHWEST AS IT PASSES. THUNDERSTORMS WILL
DEVELOP PRIMARILY OVER CTRL INTO ERN ND LATER THIS AFTERNOON INTO
EVENING. THE GREATEST THUNDERSTORM COVERAGE WILL BE INVOF KJMS
WITH COVERAGE TAPERING TOWARDS THE NORTH AND WEST. SEVERE STORMS
WILL BE POSSIBLE FROM KBIS EASTWARD...WITH LARGE HAIL AND DAMAGING
WIND GUSTS POSSIBLE THROUGH THIS EVENING. OTHERWISE...VFR
CONDITIONS ARE EXPECTED.

&&

.BIS WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL 1 AM CDT SUNDAY FOR NDZ023-025-036-037-
046>048-050-051.

&&

SHORT TERM...JJS
LONG TERM...KS
AVIATION...JJS

Hazardous weather outlook, Jun 21, 1:22 PM CDT, 1 hour 33 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 12:23 PM CDT	Flash Flood Watch	BIS	Dickey, Emmons, Foster, Kidder, LaMoure, Logan and 3 more	12 hr
Jun 21, 3:50 PM CDT	Special Weather Statement	BIS	McIntosh	40 min
Jun 21, 4:08 PM CDT	Special Weather Statement	BIS	McIntosh	37 min
Jun 21, 4:32 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, McIntosh	58 min
Jun 21, 4:39 PM CDT	Tornado Warning	BIS	McIntosh	23 min
Jun 21, 5:39 PM CDT	Special Weather Statement	BIS	LaMoure	66 min
Jun 21, 5:42 PM CDT	Special Weather Statement	BIS	Dickey	63 min
Jun 21, 5:55 PM CDT	Special Weather Statement	BIS	Stutsman	65 min
Jun 21, 6:17 PM CDT	Special Weather Statement	BIS	Dickey	28 min
Jun 21, 6:22 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	40 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2014 Every severe thunderstorm warning in 2014

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.