Alert archive / North Dakota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 81, NWS Grand Forks, ND

June 28, 2000Walsh County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 28, 2000, 4:03 PM CDT for Walsh County, North Dakota. It was in force for 32 min. 2 reports 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
Jun 28, 2000, 4:03 PM CDT (21:03 UTC)
Expired
Jun 28, 2000, 4:35 PM CDT
In force
32 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 98 km from the middle of the area, began a volume at 21:02 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

TimeReportWhereRemark
Jun 28, 4:09 PM CDTHail 1.75Adams, ND
Jun 28, 4:18 PM CDTHail 1Fordville, 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 12:00Z, 9.1 hours before the alert went out and 286 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 12:00Z on 2000-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2000-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1441 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
69 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.

000 
WUUS53 KFGF 282105
SVRFAR
NDC099-282135-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
403 PM CDT WED JUN 28 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA

* UNTIL 435 PM CDT

* AT 401 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A SEVERE THUNDERSTORM 29 MILES EAST OF DEVILS LAKE OR 13 MILES
  SOUTHWEST OF ADAMS... MOVING SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS

DURING THUNDERSTORMS YOU SHOULD MOVE INSIDE A STRONG BUILDING.  DO
NOT STAND BY WINDOWS.  DO NOT MUSE TELEPHONES OR ELECTRICAL
APPLIANCES.

HOPPES

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 Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 28, 2:55 PM CDT, 1 hour 8 minutes earlier.

Area forecast discussion, Jun 28, 2:55 PM CDT, 1 hour 8 minutes before
AFDFAR
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
255 PM CDT WED JUN 28 2000

FORECAST CHALLENGE CONCERNS TEMPS AND TSRA CHANCES

FORECAST DISCUSSION ABBREVIATED DUE TO AWIPS UPGRADE AND ISOLD SVR WX.
S/W TROUGH ROTATING THROUGH S MB AND NORTHERN FA ATTM. MULTICELL PULSE
STORMS SCATTERED ACROSS FA WITH ISOLD PSBL SEVERE WITH LOW LEVEL
INSTABILITY AND COLD TEMPS ALOFT. CONVECTION APPEARS TO BE FAIRLY
UNORGANIZED WITH ONLY SIG SFC BOUNDARY ACROSS FAR SOUTHERN FA. STORMS
LIKELY TO CONTINUE THROUGH EVENING HOURS WITH PASSAGE OF S/W AND SHOULD
FOR THE MOST PARTS DIMINISH AFTER SUNSET. WITH CELLULAR NATURE OF CLOUD
FIELD AND NVA BEHIND WAVE SKIES SHOULD CLEAR OVERNIGHT.

HEIGHTS RISE THURSDAY AS UPPER RIDGE SHIFTS EASTWARD TOWARDS FA. GOOD
WAA WITH H8 TEMPS CLIMBING. THIS SHOULD LIMIT AMOUNT OF CU DEVELOPMENT
FOR PLENTY OF SOLAR. AS A RESULT MAX TEMPS SHOULD RANGE CLOSER TO AVERAGE.

WK WAVE CROSSES RIDGE THURSDAY THURSDAY NIGHT/FRIDAY AM. MODELS DIFFER ON
STRENGTH AND CONSIDERING DIURNAL TIMING WILL KEEP FCST DRY FOR NOW BUT
WILL INCREASE CLOUD MENTION.

...EXTENDED...
SHORT WV FCST TO MOV THRU A FLAT RIDGE ON SUN. THEREAFT SW FLOW ALF IS
XPCD. NW FLOW ACRS CAN WL PRODUCE A CONVERGENT FLOW PTN NXT WEEK OVR SRN
CAN/NRN PLNS. SO WL LEAVE CURRENT CHC OF PRECIP FOR SAT THRU MON.

.FGF...NONE.

VOELKER/HOPPES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 2:30 PM CDTSevere Thunderstorm WarningFGFCavalier35 min
Jun 28, 3:16 PM CDTSevere Thunderstorm WarningFGFCavalier34 min
Jun 28, 4:16 PM CDTSevere Thunderstorm WarningFGFNelson34 min
Jun 28, 4:41 PM CDTSevere Thunderstorm WarningFGFEddy34 min
Jun 28, 5:00 PM CDTSevere Thunderstorm WarningFGFNelson35 min
Jun 28, 6:14 PM CDTSevere Thunderstorm WarningFGFSteele36 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.