Alert archive / North Dakota / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 105, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 30, 2002, 3:13 AM CDT for Barnes County, North Dakota. It was in force for 27 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
- Jun 30, 2002, 3:13 AM CDT (08:13 UTC)
- Expired
- Jun 30, 2002, 3:40 AM CDT
- In force
- 27 min
- Issued by
- NWS Grand Forks, ND
- Area
- Counties, with a storm outline in the text
County Barnes County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 51 km from the middle of the area, began a volume at 08:17 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.
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 nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 8.2 hours before the alert went out and 225 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
- 996 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 3920 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 169 m²/s²
- 0-3 km storm-relative helicity
- 279 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
385 WUUS53 KFGF 300813 SVRFAR NDC003-300840- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS 310 AM CDT SUN JUN 30 2002 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN BARNES COUNTY IN SOUTHEAST NORTH DAKOTA. * UNTIL 340 AM CDT. * AT 305 AM...THE BARNES COUNTY SHERIFF REPORTED A SEVERE THUNDERSTORM OVER PILLSBURY WITH HAIL REPORTED TO BE LARGER THAN QUARTERS. PILLSBURY IS 21 MILES NORTHEAST OF VALLEY CITY. MOVEMENT OF THE THUNDERSTORM WAS TO THE EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF NORTHEASTERN BARNES COUNTY. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. LAT...LON 4723 9784 4714 9784 4714 9773 4724 9772 GV 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 29, 8:10 PM CDT, 7 hours 3 minutes earlier.
Area forecast discussion, Jun 29, 8:10 PM CDT, 7 hours 3 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 810 PM CDT SAT JUN 29 2002 FORECAST CHALLENGE FOR UPDATE CONCERNS RAIN CHANCES. SIMILAR TO LAST NIGHT CONVECTION DEVELOPED OVER CENTRAL ND VCNTY SFC TROUGH/LOW PRESSURE CENTER IN ZONE OF FAVORED MOISTURE FLUX CONVERGENCE FROM MSAS AND WHERE CONVECTIVE TEMPERATURES REALIZED. CONVECTION PROPAGATING NORTHEAST AND APPROACHING FAR NW FA. STRONG CAP EXISTS HOWEVER WITH APPROACHING WAVE WILL LIKELY SEE CONVECTION WORKING EAST SIMILAR TO LAST NIGHT. WILL CONTINUE POPS AND INCLUDE SVR RISK OVER WESTERN COUNTIES WITH WATCH EXTENSION. FRONT PUSHES EAST TO RED RIVER OVERNIGHT BRINGING DRIER LOW LEVEL AIR TO AREAS WEST OF RED RIVER. EAST RIVER TO HAVE A SULTRY NIGHT WITH CURRENT DEWPOINTS RUNNING IN LOW TO MID 70S. CHANGES MINOR WITH MAINLY TSRA TIMING AND STRENGTH WITH WATCH. .FGF...NONE. VOELKER
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.