Alert archive / North Dakota / Tornado Warnings in 2021
Tornado Warning 1, NWS Bismarck, ND
NWS Bismarck, ND issued this tornado warning at May 19, 2021, 4:39 PM CDT for Kidder County, North Dakota. It was in force for 23 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
- May 19, 2021, 4:39 PM CDT (21:39 UTC)
- Expired
- May 19, 2021, 5:02 PM CDT
- In force
- 23 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Kidder County, ND
The radar
The Bismarck radar (KBIS), 95 km from the middle of the area, began a volume at 21:39 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.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 9.7 hours before the alert went out and 237 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
- 23 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 926 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
130
WFUS53 KBIS 192139
TORBIS
NDC043-192215-
/O.NEW.KBIS.TO.W.0001.210519T2139Z-210519T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
439 PM CDT Wed May 19 2021
The National Weather Service in Bismarck has issued a
* Tornado Warning for...
East central Kidder County in south central North Dakota...
* Until 515 PM CDT.
* At 438 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles east of Tappen, or 8 miles west of Medina,
moving northeast at 5 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
east central Kidder County, including the following locations...
Crystal Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4688 9961 4694 9945 4691 9944 4686 9945
4684 9957
TIME...MOT...LOC 2138Z 241DEG 6KT 4688 9949
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
HAMILTON2 follow-up statements
223
WWUS53 KBIS 192148
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
448 PM CDT Wed May 19 2021
NDC043-192215-
/O.CON.KBIS.TO.W.0001.000000T0000Z-210519T2215Z/
Kidder ND-
448 PM CDT Wed May 19 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EAST
CENTRAL KIDDER COUNTY...
At 444 PM CDT, spotters reported that a confirmed tornado near
Tappen had just dissipated. The storm that produced this tornado is
still capable of producing another. If you are in this area take
cover.
HAZARD...Tornado.
SOURCE...Public confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Crystal Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4688 9961 4694 9945 4691 9944 4686 9945
4684 9957
TIME...MOT...LOC 2145Z 241DEG 6KT 4689 9947
TORNADO...OBSERVED
HAIL...<.75IN
$$
HAMILTON123
WWUS53 KBIS 192202
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
502 PM CDT Wed May 19 2021
NDC043-192209-
/O.CAN.KBIS.TO.W.0001.000000T0000Z-210519T2215Z/
Kidder ND-
502 PM CDT Wed May 19 2021
...THE TORNADO WARNING FOR EAST CENTRAL KIDDER COUNTY IS CANCELLED...
The storm which prompted the tornado has weakened, therefore the
tornado warning has been cancelled. Conditions are still favorable
for weak landspout tornados in this area for the next couple of
hours. Remain alert and take shelter if witness one of these weak
tornados.
LAT...LON 4688 9961 4694 9945 4691 9944 4686 9945
4684 9957
TIME...MOT...LOC 2155Z 241DEG 6KT 4690 9944
$$
HAMILTONThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 4:13 PM CDT | Special Weather Statement | BIS | Logan | 47 min |
| May 19, 4:36 PM CDT | Special Weather Statement | BIS | Kidder | 39 min |
| May 19, 5:16 PM CDT | Special Weather Statement | BIS | Kidder | 44 min |
| May 19, 5:41 PM CDT | Special Weather Statement | BIS | Kidder | 34 min |
| May 19, 5:51 PM CDT | Special Weather Statement | BIS | Foster | 24 min |
| May 19, 6:18 PM CDT | Special Weather Statement | BIS | Wells | 27 min |
| May 19, 6:21 PM CDT | Special Weather Statement | BIS | Stutsman | 39 min |
| May 19, 6:28 PM CDT | Special Weather Statement | BIS | Emmons | 32 min |
Nearby
Tornado Warnings in North Dakota, 2021Every tornado warning in 2021Tornadoes in 2021
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.