Alert archive / North Dakota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 69, NWS Bismarck, ND

July 6, 1998McHenry County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 6, 1998, 9:28 PM CDT for McHenry County, North Dakota. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 6, 1998, 9:28 PM CDT (02:28 UTC)
Expired: Jul 6, 1998, 10:15 PM CDT
In force: 47 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County McHenry County, ND

What was reported inside it

Time	Report	Where	Remark
Jul 6, 10:10 PM CDT	Hail 0.75	Bantry, ND

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.5 hours before the alert went out and 163 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: 461 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1180 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

920 
WUUS1 KBIS 070229 RRA
SVRBIS
NDC049-070315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
928 PM CDT MON JUL 6 1998

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MCHENRY COUNTY IN NORTH CENTRAL NORTH DAKOTA

* UNTIL 1015 PM CDT

* AT 926 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 15 MILES SOUTHEAST OF BOTTINEAU...4 MILES
  NORTHEAST OF UPHAM... MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BANTRY AT 937 PM CDT
  TOWNER AT 955 PM CDT

SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. GO INSIDE A STURDY BUILDING AND
STAY AWAY FROM WINDOWS

JP MARTIN

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.

In the hours before

Local storm report, Jul 6, 5:51 PM CDT, 3 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  BISMARCK ND
551 PM CDT MON JUL 6 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0432 PM    2 SW FOXHOLM              ND   2.75 INCH HAIL
07/06/98   WARD

0420 PM    BERTHOLD                  ND   1.75 INCH HAIL
07/06/98   WARD

0449 PM    15 E PARSHALL             ND   TORNADO
07/06/98   WARD                           STANLEY RADAR OPERATOR
                                          REPORTED TORNADO VIA ARB
                                          PILOT

0450 PM    RYDER                     ND   TORNADO
07/06/98   WARD                           TORNADO REPORTED BY
                                          SPOTTERS

0520 PM    19 S MINOT                ND   1.75 INCH HAIL
07/06/98   WARD

LLP

Local storm report, Jul 6, 5:51 PM CDT, 3 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  BISMARCK ND
551 PM CDT MON JUL 6 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0432 PM    2 SW FOXHOLM              ND   2.75 INCH HAIL
07/06/98   WARD

0420 PM    BERTHOLD                  ND   1.75 INCH HAIL
07/06/98   WARD

0449 PM    15 E PARSHALL             ND   TORNADO
07/06/98   MOUNTRAIL                      STANLEY RADAR OPERATOR
                                          REPORTED TORNADO VIA ARB
                                          PILOT

0450 PM    RYDER                     ND   TORNADO
07/06/98   WARD                           TORNADO REPORTED BY
        z                                  SPOTTERS

0520 PM    19 S MINOT                ND   1.75 INCH HAIL
07/06/98   WARD

LLP

Local storm report, Jul 6, 5:51 PM CDT, 3 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  BISMARCK ND
551 PM CDT MON JUL 6 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0432 PM    2 SW FOXHOLM              ND   2.75 INCH HAIL
07/06/98   WARD

0420 PM    BERTHOLD                  ND   1.75 INCH HAIL
07/06/98   WARD

0449 PM    15 E PARSHALL             ND   TORNADO
07/06/98   WARD                           STANLEY RADAR OPERATOR
                                          REPORTED TORNADO VIA ARB
                                          PILOT

0450 PM    RYDER                     ND   TORNADO
07/06/98   WARD                           TORNADO REPORTED BY
                                          SPOTTERS

0520 PM    19 S MINOT                ND   1.75 INCH HAIL
07/06/98   WARD

LLP

Local storm report, Jul 6, 9:02 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  BISMARCK ND
902 PM CDT MON JUL 6 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0530 PM    5 N BISMARCK              ND   1.00 INCH HAIL
07/06/98   BURLEIGH

0540 PM    4 W STRASBURG             ND   TORNADO
07/06/98   EMMONS                         FARM DESTROYED

0545 PM    STRASBURG                 ND   TORNADO
07/06/98   EMMONS                         LARGE TREES DOWN WINDOWS
                                          BROKEN OUT

0641 PM    RUSO                      ND   0.75 INCH HAIL
07/06/98   MCLEAN

0652 PM    4 N MAX                   ND   1.75 INCH HAIL
07/06/98   WARD

0658 PM    5 N MAX                   ND   1.75 INCH HAIL
07/06/98   WARD

0711 PM    1 W TURTLE LAKE           ND   0.75 INCH HAIL
07/06/98   MCLEAN

0810 PM    LANSFORD                  ND   1.00 INCH HAIL
07/06/98   BOTTINEAU

DED/WA

Local storm report, Jul 6, 9:02 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE  BISMARCK ND
902 PM CDT MON JUL 6 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0530 PM    5 N BISMARCK              ND   1.00 INCH HAIL
07/06/98   BURLEIGH

0540 PM    4 W STRASBURG             ND   TORNADO
07/06/98   EMMONS                         FARM DESTROYED

0545 PM    STRASBURG                 ND   TORNADO
07/06/98   EMMONS                         LARGE TREES DOWN WINDOWS
                                          BROKEN OUT

0641 PM    RUSO                      ND   0.75 INCH HAIL
07/06/98   MCLEAN

0652 PM    4 N MAX                   ND   1.75 INCH HAIL
07/06/98   WARD

0658 PM    5 N MAX                   ND   1.75 INCH HAIL
07/06/98   WARD

0711 PM    1 W TURTLE LAKE           ND   0.75 INCH HAIL
07/06/98   MCLEAN

0810 PM    LANSFORD                  ND   1.00 INCH HAIL
07/06/98   BOTTINEAU

DED/WA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 7:00 PM CDT	Severe Thunderstorm Warning	BIS	Ward	35 min
Jul 6, 7:01 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan	44 min
Jul 6, 7:12 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	33 min
Jul 6, 7:24 PM CDT	Severe Thunderstorm Warning	BIS	McLean, Sheridan	46 min
Jul 6, 8:14 PM CDT	Severe Thunderstorm Warning	BIS	Bottineau	51 min
Jul 6, 8:45 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh	30 min
Jul 6, 9:03 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	62 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.