Alert archive / Nebraska / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 121, NWS Hastings, NE

July 16, 1996Nance County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 16, 1996, 5:40 PM CDT for Nance County, Nebraska. It was in force for 35 min. 1 report 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: Jul 16, 1996, 5:40 PM CDT (22:40 UTC)
Expired: Jul 16, 1996, 6:15 PM CDT
In force: 35 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Nance County, NE

The radar

The Grand Island radar (KUEX), 126 km from the middle of the area, began a volume at 22:39 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.

What was reported inside it

Time	Report	Where	Remark
Jul 16, 6:17 PM CDT	Tornado F0	Genoa, 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 12:00Z, 10.7 hours before the alert went out and 136 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: 60 J/kg
Mixed-layer CIN: -172 J/kg
Mixed-layer LCL: 1676 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 254 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 2:44 PM CDT, 2 hours 56 minutes earlier.

Area forecast discussion, Jul 16, 2:44 PM CDT, 2 hours 56 minutes before

CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
235 PM CDT TUE JUL 16 1996

LOCATION OF INITIAL FIRING OF NEXT ROUND OF CONVECTION BIGGEST PROBLEM
IN THE SHORT TERM.

QUITE THE COMPLEX SYNOPTIC AND MESOSCALE SITUATION IN THE AREA TODAY.
12Z UA ANALYSIS INDICATED MOISTURE AXIS FROM DEEP SOUTH INTO WESTERN
NEBRASKA WITH H8 DWPTS 15C+. H8 WMFNT WAS WELL DEFINED FROM WRN ND INTO
ERN NEB. FRONTOGENESIS WAS NOTED AT H7 AS QVECTORS WERE ALIGNED NORMAL
TO THE BAROCLINIC ZONE OVER ERN NEB/SD FROM COLD TO WARM. BLV
INTERACTION BETWEEN S/WV MOVG ACRS NRN NEB THIS AM AND MIDLVL WMFNTS
ACCOUNTS FOR MORNING TSTMS THAT REDEVELOPED OVER ERN CWA.
ANALYSIS...SATL AND PROFILERS TODAY ALSO INDICATED MINOR S/WV TROF MOVG
THRU WRN WY TO WRN NM.

AT THE SFC...TROF OF LOW PRES CONTUS TO STRENGHTHEN AND SOME SORT OF
THERMAL BOUNDARY WAS DEVELOPING BETWEEN THE SUNNY AND CLOUDY AREAS
ALONG THE NEB/KS BORDER. HARD TO SAY IF THIS IS TRUE SYNOPTIC
WMFRONTOGENESIS AS INDICATORS WERE WEAK AT BEST. NONE-THE-LESS THERE/S
A BOUNDARY TO CONTEND WITH ALONG THE BORDER.

FELT NGM HANDLED S/WVS BEST AND MOST CONSISTENTLY LAST FEW DAYS AND WL
FLW THRU FCST. AS INTERMOUNTAIN S/WV MOVES INTO PLAINS TON...TUFF CALL
AS TO WHERE INITIAL REDEVELOPMENT WILL OCCUR. MODIFIED LBF SOUNDING
STILL HELD A 2-3C MIDLVL CAP...WITH OMA MODIFIED DOWN TO NO CAP. PLENTY
OF SS ACROSS WRN PANHANDLE AND NW KS TAFTN WITH ...SO ALL SHUD POINT TO
DLVPMNT OVER NW KS/SC NEB. BLV ORGANIZED CONVECTION AND MCS WL FORM
LATER THIS EVE AS STORMS INTERACT WITH AFOREMENTIONED MIDLVL FRONTS
OVER SCNTRL-ERN NEB. THEREFORE HIEST POPS PROBABLY EAST OF US281 AND
NORTH OF KS BORDER TON WITH HVY RAIN LIKELY.

AFT THIS EVE...PAC CST UPR LOW DIGS SWWD WITH A RIDGING RESPONSE AND
MID-LLVL WARMING OVER THE CENTRAL PLAINS. NEVER REALLY SEE A SOLID WLY
DOWNSLOPE COMPONENT...AND WITH DWPTS STILL TO REMAIN MDTLY HI...WL FLW
COLR FWC GUID ON MAXES. H7 TEMPS GO ABV CAPPING THRESHHOLD AFT TON...SO
LUKS LIKE GUID POPS ARE PEGGING CLIMO VALUES AS S/WV ENERGY RIDES NORTH
OF CWA. WL HV TO WATCH WK TX S/WV PROGGED TO MOV ACRS KS THO.

GRI 067/091 41              HBR 068/091 52
ODX 065/093 41              BLT 068/094 20
LXN 063/091 30

BREWSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 5:40 PM CDT	Severe Thunderstorm Warning	GID	Nance	50 min
Jul 16, 6:04 PM CDT	Tornado Warning	GID	Nance	26 min
Jul 16, 6:39 PM CDT	Tornado Warning	GID	Polk	36 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1996 Every severe thunderstorm warning in 1996

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.