Alert archive / North Dakota / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 21, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 16, 2001, 7:49 PM CDT for Grand Forks County, North Dakota; Polk County, Minnesota. It was in force for 26 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
- May 16, 2001, 7:49 PM CDT (00:49 UTC)
- Expired
- May 16, 2001, 8:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Grand Forks, ND
- Area
- Whole counties
Counties Polk County, MN, Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 46 km from the middle of the area, began a volume at 00:49 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 16, 7:55 PM CDT | Thunderstorm Wind | Grand Forks, ND | Numerous large branches were blown off trees. |
| May 16, 8:05 PM CDT | Hail 0.88 | Mallory, MN |
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
International Fa, MN (KINL), launched 00:00Z, 0.8 hours before the alert went out and 281 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
- 20 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 2462 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KFGF 170050 SVRFAR MNC119-NDC035-170115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS 749 PM CDT WED MAY 16 2001 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA... THIS INCLUDES THE CITY OF GRAND FORKS NORTHWESTERN POLK COUNTY IN NORTHWEST MINNESOTA... * UNTIL 815 PM CDT * AT 743 PM CDT...A SEVERE THUNDERSTORM HAS BEEN REPORTED FROM SPOTTERS IN POLK AND GRAND FORKS COUNTIES. RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTH OF GRAND FORKS...MOVEMENT WAS TO THE NORTHEAST AT 20 MPH. EXPECT WIND GUSTS TO 65 MPH FROM THIS THUNDERSTORM. * THE SEVERE THUNDERSTORM WILL BE NEAR... GRAND FORKS AT 750 PM CDT... EAST GRAND FORKS AT 755 PM CDT... DAVIDSON AT 805 PM CDT... SHERACK AT 815 PM CDT... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. $$ LAT...LON 4788 9722 4775 9704 4800 9662 4816 9686 NNNN
Nearby
Severe Thunderstorm Warnings in North Dakota, 2001Severe Thunderstorm Warnings in Minnesota, 2001Every severe thunderstorm warning in 2001
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.