Alert archive / North Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 90, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 23, 2002, 10:35 PM CDT for Richland County, North Dakota. It was in force for 40 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
- Jun 23, 2002, 10:35 PM CDT (03:35 UTC)
- Expired
- Jun 23, 2002, 11:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Richland County, ND
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 23, 10:45 PM CDT | Hail 0.75 | Wyndmere, 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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 |
|---|---|---|---|
| Jun 23, 7:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.6 hours before the alert went out and 188 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.
- Mixed-layer CAPE
- 3980 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1618 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 15.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 240335 SVRFAR NDC077-240415- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 1035 PM CDT SUN JUN 23 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 1115 PM CDT. * AT 1032 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES SOUTHWEST OF WYNDMERE...OR ABOUT 31 MILES WEST OF WAHPETON...MOVEMENT WAS TO THE NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WYNDMERE AT 1050 PM... BARNEY AT 1100 PM AND MOORETON AT 1110 PM. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM MONDAY MORNING FOR EASTERN NORTH DAKOTA. LAT...LON 4628 9723 4607 9716 4636 9672 4653 9698 30 NNNN
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 23, 8:50 PM CDT, 1 hour 45 minutes earlier.
Area forecast discussion, Jun 23, 8:50 PM CDT, 1 hour 45 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
850 PM CDT SUN JUN 23 2002
CAP MAY BE ABLE TO BREAK IN THE PATH OF STRONG THUNDERSTORM COMPLEX
NORTHEAST OF BIS ATTM...WHICH SEEMS MOSTLY LIKELY SCENARIO FOR SEVERE
STORMS OVER NORTH PART OF NEW SEVERE WATCH. SIGNIFICANT STABILITY
REMAINS FOR MUCH OF AREA BUT IS SLOWLY ERODING.
IT DOES APPEAR THAT MOST THUNDERSTORMS WILL BE OVER NORTHEAST AND
EASTERN ND NEXT COUPLE OF HOURS WHILE MORE SCATTERED FOR SOUTHEAST
CORNER OF STATE. NORTHWEST MN LOOKS CLEAR OF CONVECTION TIL AFTER
MIDNIGHT AND WILL UPDATE ZONES TO STATE THAT.
.FGF...SEVERE THUNDERSTORM WATCH EASTCENTRAL AND SOUTHEAST ND TIL 1AM
FLOOD WATCH ENTIRE FA THROUGH MONDAY.
GVIn the hours before
Local storm report, Jun 23, 5:19 PM CDT, 5 hours 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
519 PM CDT SUN JUN 23 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0530 AM 12 NW WARWICK ND .75 INCH HAIL
06/22/02 BENSON
0540 AM 8SE DEVILS LAKE ND .75 INCH HAIL
06/22/02 RAMSEY
0625 AM 9E DEVILS LAKE ND .75 INCH HAIL
06/22/02 RAMSEY
0650 AM 10 N LAKOTA ND 1.00 INCH HAIL
06/22/02 NELSON
0645 AM LANKIN ND .75 INCH HAIL
06/22/02 WALSH
LKLocal storm report, Jun 23, 6:13 PM CDT, 4 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND FORKS, ND
613 PM CDT SUN JUN 23 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0735 AM 6N MICHIGAN ND 1.50 INCH HAIL
06/22/02 NELSON HAIL PUNCHED 12 HOLES IN
PORCH ROOF
0805 AM 15W KENNEDY MN 1.00 INCH HAIL
06/22/02 KITTSON
0838 AM 1/2E DONALDSON MN 1.00 INCH HAIL
06/22/02 KITTSON
LKThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 10:02 PM CDT | Severe Thunderstorm Warning | FGF | Eddy | 43 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2002Every severe thunderstorm warning in 2002
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.