Alert archive / North Dakota / Special Weather Statements in 2015

Special Weather Statement, NWS Bismarck, ND

September 30, 20154 counties in North Dakota

NWS Bismarck, ND issued this special weather statement at Sep 30, 2015, 11:39 PM CDT for 4 counties in North Dakota. It was in force for 21 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
Sep 30, 2015, 11:39 PM CDT (04:39 UTC)
Expired
Oct 1, 2015, 12:00 AM CDT
In force
21 min
Issued by
NWS Bismarck, ND

Counties McHenry County, ND, McLean County, ND, Mercer County, ND, Pierce County, ND

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 4.7 hours before the alert went out and 165 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2015-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 112 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2015-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
112 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
1809 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Sep 30, 9:38 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Sep 30, 9:38 PM CDT, 2 hours 1 minute before
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Hazardous weather outlook, Sep 30, 7:05 PM CDT, 4 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BISMARCK ND
705 PM CDT WED SEP 30 2015

NDZ001>005-009>013-017>023-025-031>037-040>048-050-051-020015-
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-
705 PM CDT WED SEP 30 2015 /605 PM MDT WED SEP 30 2015/

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...TONIGHT

SCATTERED THUNDERSTORMS POSSIBLE OVER PORTIONS OF THE AREA TONIGHT.
A FEW MAY BE STRONG WITH HAIL AND HEAVY RAIN WEDNESDAY EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

STRONG SOUTHEASTERLY WINDS OF 30 TO 45 MPH ARE POSSIBLE IN
SOUTHWEST NORTH DAKOTA FRIDAY. A WIND ADVISORY MIGHT BE NEEDED IF
THIS TREND CONTINUES. PLEASE CHECK BACK FOR FUTURE UPDATES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, Sep 30, 9:12 PM CDT, 2 hours 27 minutes before
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Special weather statement, Sep 30, 9:21 PM CDT, 2 hours 18 minutes before
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Local storm report, Sep 30, 10:18 PM CDT, 1 hour 21 minutes before
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Special weather statement, Sep 30, 10:22 PM CDT, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1022 PM CDT WED SEP 30 2015

NDZ012-021-010400-
MCHENRY ND-MCLEAN ND-
1022 PM CDT WED SEP 30 2015

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN MCLEAN AND SOUTH
CENTRAL MCHENRY COUNTIES...

AT 1021 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11
MILES SOUTHEAST OF BENEDICT...OR 25 MILES EAST OF GARRISON...MOVING
NORTHEAST AT 15 MPH.

PENNY SIZE HAIL WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BUTTE...RUSO AND STRAWBERRY LAKE.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 4785 10054 4785 10058 4770 10059 4764 10092
      4778 10105 4793 10073
TIME...MOT...LOC 0321Z 244DEG 14KT 4774 10088

ABELING
Local storm report, Sep 30, 11:02 PM CDT, 37 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE BISMARCK ND
1102 PM CDT WED SEP 30 2015

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

0722 PM     HAIL             8 SE RICHARDTON         46.81N 102.20W
09/30/2015  E1.25 INCH       STARK              ND   TRAINED SPOTTER

            SILVER DOLLAR SIZE HAIL REPORTED EAST OF RICHARDTON

0805 PM     HAIL             14 SSE RICHARDTON       46.70N 102.20W
09/30/2015  E1.00 INCH       STARK              ND   TRAINED SPOTTER

            REPORT OF ONE INCH HAIL IN SOUTHEAST START COUNTY.

0855 PM     HAIL             15 W HEART BUTTE DAM    46.60N 102.13W
09/30/2015  E1.00 INCH       HETTINGER          ND   TRAINED SPOTTER

            REPORT OF ONE INCH HAIL

0945 PM     HAIL             2 SSW WILLOW CITY       48.58N 100.31W
09/30/2015  M1.00 INCH       BOTTINEAU          ND   CO-OP OBSERVER

            HAIL LASTED 10 MINUTES UNTIL 955 PM CDT.

&&

ABELING
Special weather statement, Sep 30, 11:39 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BISMARCK ND
1139 PM CDT WED SEP 30 2015

NDZ005-011>013-019-021-022-010500-
MCHENRY-PIERCE-WARD-ROLETTE-MERCER-MCLEAN-SHERIDAN-
1139 PM CDT WED SEP 30 2015

...A LINE OF THUNDERSTORMS WILL AFFECT PORTIONS OF CENTRAL NORTH
DAKOTA LATE THIS EVENING...

AT 1131 PM CDT...A LINE OF THUNDERSTORMS WAS ALONG A LINE FROM
SOUTHERN ROLETTE COUNTY...SOUTHWEST TO EASTERN PORTIONS OF LAKE
SAKAKAWEA...AND MOVING EAST AT 15 MPH.

BRIEF HEAVY DOWNPOURS...DEADLY LIGHTNING AND DIME SIZE HAIL IS
POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE... RUGBY...GARRISON...WASHBURN...HAZEN
BAY RECREATION AREA...VELVA...UNDERWOOD...COLEHARBOR...TURTLE
LAKE...TOWNER...STANTON...SAWYER...RIVERDALE AND PICK CITY.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY CAN RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
OFFICE IN BISMARCK.

LAT...LON 4838 9950 4837 9985 4807 9985 4730 10102
      4725 10211 4783 10163 4838 10069 4855 10024
      4854 10015 4859 10014 4868 9989 4869 9950
TIME...MOT...LOC 0431Z 272DEG 13KT 4862 9954 4742 10139

HAMILTON

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 7:33 PM CDTSevere Thunderstorm WarningBISGrant, Hettinger, Stark57 min
Sep 30, 8:35 PM CDTSpecial Weather StatementBISHettinger40 min
Sep 30, 8:54 PM CDTSpecial Weather StatementBISRolette51 min
Sep 30, 9:12 PM CDTSpecial Weather StatementBISGrant48 min
Sep 30, 9:21 PM CDTSpecial Weather StatementBISRolette39 min
Sep 30, 10:22 PM CDTSpecial Weather StatementBISSheridan38 min
Oct 1, 12:30 AM CDTSpecial Weather StatementBISMercer60 min
Oct 1, 1:12 AM CDTSpecial Weather StatementBISOliver63 min
Oct 1, 2:06 AM CDTSpecial Weather StatementBISOliver54 min
Oct 1, 3:04 AM CDTSevere Thunderstorm WarningBISMorton, Oliver41 min
Oct 1, 3:47 AM CDTSevere Thunderstorm WarningBISMorton43 min
Oct 1, 4:40 AM CDTSpecial Weather StatementBISMorton, Oliver35 min
Oct 1, 7:20 AM CDTSpecial Weather StatementBISEmmons25 min
Oct 1, 9:28 AM CDTDense Fog AdvisoryBISAdams, Billings, Bowman, Golden Valley, Slope3 hr
Oct 1, 2:25 PM CDTWind AdvisoryBISAdams, Billings, Bowman, Golden Valley, Hettinger, Slope and 1 more32 hr

Nearby

Special Weather Statements in North Dakota, 2015Every special weather statement in 2015

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.