Alert archive / Nebraska / Tornado Warnings in 2002

Tornado Warning 4, NWS North Platte, NE

May 27, 2002Hooker County, Nebraska

NWS North Platte, NE issued this tornado warning at May 27, 2002, 6:37 PM MDT for Hooker County, Nebraska. It was in force for 38 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: May 27, 2002, 6:37 PM MDT (00:37 UTC)
Expired: May 27, 2002, 7:15 PM MDT
In force: 38 min
Issued by: NWS North Platte, NE
Area: Counties, with a storm outline in the text

County Hooker County, NE

The radar

The North Platte radar (KLNX), 49 km from the middle of the area, began a volume at 00:37 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 27, 7:05 PM MDT	Hail 0.75	Mullen, NE

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 27, 1:45 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
May 27, 6:00 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.6 hours before the alert went out and 100 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2225 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1732 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS53 KLBF 280037
TORLBF
NEC091-280115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
638 PM MDT MON MAY 27 2002

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A

* TORNADO WARNING FOR...
  HOOKER COUNTY IN WEST CENTRAL NEBRASKA

* UNTIL 715 PM MDT...

* AT 632 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM WITH STRONG
  ROTATION 17 MILES SOUTHWEST OF MULLEN...MOVING EAST AT 40 MPH. THIS
  STORM IS CAPABLE OF PRODUCING A TORNADO AT ANY TIME.

* THE DEVELOPING TORNADO IS EXPECTED TO BE...
  11 MILES SOUTH OF MULLEN AROUND 650 PM MDT...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4203 10138 4174 10136 4175 10084 4205 10085

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 6:27 PM MDT	Severe Thunderstorm Warning	LBF	Arthur, McPherson	48 min
May 27, 6:33 PM MDT	Severe Thunderstorm Warning	LBF	Cherry	57 min
May 27, 7:07 PM MDT	Severe Thunderstorm Warning	LBF	Logan, McPherson, Thomas	23 min
May 27, 7:19 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	56 min
May 27, 7:33 PM MDT	Severe Thunderstorm Warning	LBF	Blaine, Thomas	42 min
May 27, 7:45 PM MDT	Severe Thunderstorm Warning	LBF	Lincoln	60 min
May 27, 9:28 PM MDT	Severe Thunderstorm Warning	LBF	Custer	32 min
May 28, 4:41 PM MDT	Severe Thunderstorm Warning	LBF	Frontier	34 min

Nearby

Tornado Warnings in Nebraska, 2002 Every tornado warning in 2002 Tornadoes 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; radar from the NEXRAD Level II archive.