Alert archive / Nebraska / Tornado Warnings in 2002

Tornado Warning 34, NWS Hastings, NE

July 24, 2002Valley County, Nebraska

NWS Hastings, NE issued this tornado warning at Jul 24, 2002, 7:21 PM CDT for Valley County, Nebraska. It was in force for 39 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: Jul 24, 2002, 7:21 PM CDT (00:21 UTC)
Expired: Jul 24, 2002, 8:00 PM CDT
In force: 39 min
Issued by: NWS Hastings, NE
Area: Counties, with a storm outline in the text

County Valley County, NE

The radar

The North Platte radar (KLNX), 133 km from the middle of the area, began a volume at 00:24 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
Jul 24, 7:25 PM CDT	Tornado F0	Arcadia, NE	Brief touchdown in open country reported by volunteer fireman.

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
Jul 24, 4:50 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.4 hours before the alert went out and 143 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: 793 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 3368 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

561 
WFUS53 KGID 250021
TORGRI
NEC175-250100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
718 PM CDT WED JUL 24 2002

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* TORNADO WARNING FOR...
  VALLEY COUNTY IN CENTRAL NEBRASKA

* UNTIL 800 PM CDT

* AT 714 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 6 MILES WEST OF ORD...OR ABOUT 33 MILES
  NORTHEAST OF BROKEN BOW...MOVING SOUTHEAST AT 15 MPH.

SOME LOCATIONS NEAR THE PATH OF THE TORNADO INCLUDE LOCATIONS NEAR 
AND WEST OF ORD...ARCADIA...AND NORTH LOUP.

PEOPLE IN VALLEY COUNTY SHOULD TAKE SHELTER IMMEDIATELY IN A BASEMENT
OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR.

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

THIS REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY ISSUED FOR 
VALLEY COUNTY.

LAT...LON 4180 9909 4172 9930 4140 9915 4144 9879
          4169 9877

GUYER

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 7:35 PM CDT	Severe Thunderstorm Warning	GID	Greeley	55 min
Jul 24, 8:26 PM CDT	Severe Thunderstorm Warning	GID	Sherman	64 min
Jul 24, 9:05 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Hall, Howard	70 min
Jul 24, 9:09 PM CDT	Tornado Warning	GID	Buffalo	66 min
Jul 24, 10:04 PM CDT	Tornado Warning	GID	Adams, Kearney	56 min
Jul 24, 11:01 PM CDT	Severe Thunderstorm Warning	GID	Adams	44 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.