Alert archive / Nebraska / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 2, NWS Omaha, NE

March 8, 1997Antelope County, Madison County, Pierce County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Mar 8, 1997, 8:37 PM CST for Antelope County, Madison County, Pierce County, Nebraska. It was in force for 48 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: Mar 8, 1997, 8:37 PM CST (02:37 UTC)
Expired: Mar 8, 1997, 9:25 PM CST
In force: 48 min
Issued by: NWS Omaha, NE
Area: Whole counties

Counties Antelope County, NE, Madison County, NE, Pierce County, NE

The radar

The Omaha radar (KOAX), 146 km from the middle of the area, began a volume at 02:41 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
Mar 8, 8:40 PM CST	Hail 0.75	Tilden, NE
Mar 8, 8:40 PM CST	Hail 0.75	Tilden, 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 nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 2.6 hours before the alert went out and 145 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2746 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 454 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

531 
WUUS1 KOMA 090236 RRA
SVROMA
NEC003-119-139-090325-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
837 PM CST SAT MAR 8 1997

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHERN ANTELOPE COUNTY - IN NORTHEASTERN NEBRASKA
  SOUTHERN PIERCE COUNTY - IN NORTHEASTERN NEBRASKA
  MADISON COUNTY - IN NORTHEASTERN NEBRASKA

* UNTIL 925 PM CST
 
AT 835 PM DOPPLER RADAR IN OMAHA/VALLEY INDICATED AN AREA OF
POSSIBLY SEVERE THUNDERSTORMS BETWEEN 10 AND 20 MILES WEST OF
NORFOLK.  THESE STORMS WERE MOVING NORTHEAST AT 30 MPH.
THESE STORMS WILL LIKELY HIT TILDEN...MEADOW GROVE AND PIERCE
BEFORE 900 PM...AND POSSIBLY REACH NORFOLK AND MADISON BEFORE 915
PM.
 
PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER AND
PREPARE FOR DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DANGEROUS LIGHTNING. STAY AWAY FROM WINDOWS.

CHERMOK

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 8:29 PM CST	Severe Thunderstorm Warning	OAX	Colfax, Cuming, Dodge	46 min
Mar 8, 8:55 PM CST	Severe Thunderstorm Warning	OAX	Burt	35 min
Mar 8, 11:50 PM CST	Severe Thunderstorm Warning	OAX	Butler, Dodge, Saunders	45 min
Mar 9, 2:01 AM CST	Severe Thunderstorm Warning	OAX	Lancaster	34 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1997 Every severe thunderstorm warning in 1997

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.