Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 39, NWS Hastings, NE

April 11, 2001Thayer County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 11, 2001, 1:31 AM CDT for Thayer County, Nebraska. It was in force for 59 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: Apr 11, 2001, 1:31 AM CDT (06:31 UTC)
Expired: Apr 11, 2001, 2:30 AM CDT
In force: 59 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Thayer County, NE

What was reported inside it

Time	Report	Where	Remark
Apr 11, 1:49 AM CDT	Tornado F1	Hebron, NE	Brief tornado on the east side of Hebron

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
Apr 10, 10:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 6.5 hours before the alert went out and 164 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: 18 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 493 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 110631
SVRGRI
NEC169-110730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
131 AM CDT WED APR 11 2001

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  THAYER COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 230 AM CDT

* AT 130 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 40 MILES SOUTHEAST OF HASTINGS NEAR RUSKIN...
  MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DESHLER AT 140 AM CDT
  HEBRON AT 150 AM CDT

THIS STORM HAS A HISTORY OF DAMAGING WIND. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

$$

MORITZ

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 Apr 10, 1:45 PM CDT, 11 hours 46 minutes earlier.

Area forecast discussion, Apr 10, 1:45 PM CDT, 11 hours 46 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
145 PM CDT TUE APR 10 2001

...TSRA POTENTIAL THE NEXT 24 HRS IS THE MAIN CONCERN...

SMALL...BUT RELATIVELY POTENT...BATCH OF TSRAS PRODUCED SVR WX ACROSS
THE MIDDLE OF CWA THIS MORNING. THIS CLUSTER EFFECTIVELY PUSHED INVERTED
SFC TROF SOUTH TO NEAR THE NEB/KS BORDER...AT LEAST IN OUR CWA. FURTHER
SOUTH...WARM FRONT IS LIFTING THRU CNTRL KS W/ M60 DWPTS AS FAR NORTH AS
TOP/SLN. PLENTY OF TSRA ACTIVITY IN WARM SECTOR IN ERN KS...W/ WEAKER
RETURNS INTO OUR 6 NC CNTYS. AS WARM LIFTS INTO INVERTED TROF...EXPECT
TSRAS TO BECOME MORE WIDESPREAD LATE THIS AFTN INTO EVENING. THE BEST
POTENTIAL FOR SVR WX WILL BE OVER NC KS...BUT WILL ALSO WORK NORTH THRU
NEB CNTYS AS STRONG OVERRUNNING OF COOL SFC AIR TAKES PLACE TONIGHT W/
THE APPROACH OF POTENT UPPER LVL SYS CURRENTLY INDICATED CLEARING ON WV
IN AZ. EVENTUALLY EXPECT COOL LLVL AIR TO BE DISPLACED NORTH AS WELL
OVER MOST OF CWA.

WILL FOLLOW ETA W/ ITS SLIGHTLY BETTER HANDING OF LLVL MOISTURE INFLUX
W/ THE CAVIOT THAT IT DID NOT ANTICIPATE THE SWRD PUSH OF SFC TROF BY
AM TSRAS. REALLY...FCST PLAYS OUT ABOUT THE SAME USING ALL THE MDLS W/
BASIC SCENARIO OF TSRAS INCREASING IN COVERAGE THRU NC KS THIS AFTN &
SPREADING THRU NEB CNTYS THIS EVENING...SOME DRY SLOTTING OVERNIGHT...
THEN THE UPPER LO LIFTS NE OVER CWA TOMR...W/ POTENTIAL FOR SVR WX...
INCLUDING TORNADOS INTO EARLY AFTN...WHEN SYS PASSES NE AND A STRONG W
TO NW WIND DRIES THINGS OUT. WHEN ALL THINGS ARE SAID AND DONE...ONLY
NEED TO TWEEK CURRENT FCST. WILL HAVE TO REWORD TEMPS TONIGHT AS 40S
IN PLACE OVER MUCH OF NRN/CNTRL CWA WILL BE REPLACED BY 50S TONIGHT.
WILL UP TEMPS TOMR AS WELL...ESP SE 1/2 OF CWA BASED ON PROGGED TRACK
OF SFC LO AND SOUTH WINDS FCST THRU EARLY AFTN.

AS FOR EXTENDED...WONT PLAY W/ MUCH. AS PER PMDEPD...SOME DIFFICULTY
W/ NEXT WAVE THAT DROPS IN BEHIND CURRENT SYS. I AM INCLINED TO LEAVE
FCST DRY. I EXPECT 2ND SYS TO HAVE ALOT OF TROUBLE MAINTAINING ITSELF
AS IT WORKS EAST INTO CONFLUENT FLOW LEFT IN BEHIND CURRENT BIG STORM.
OTHERWISE...A TREND TOWARD WARMER WX BY WEEKEND AFTER COOLER READINGS
INVADE LATE WED INTO THU IN WAKE OF AZ UPPER LO.

.GID...NONE.

GURNEY

In the hours before

Local storm report, Apr 10, 8:37 PM CDT, 4 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
837 PM CDT TUE APR 10 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....
R
0818 PM    ROCKVILLE                 NE    .75 INCH HAIL
04/10/01   SHERMAN

0830 PM    3 WNW FARWELL             NE    1 INCH HAIL
04/10/01   HOWARD

Local storm report, Apr 11, 12:03 AM CDT, 1 hour 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1203 AM CDT WED APR 11 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1145 PM    PALCO                     KS    1.75 INCH HAIL
04/10/01   ROOKS

1145 PM    3 S PLAINVILLE            KS    WIND DAMAGE
04/10/01   ROOKS

1145 PM    PLAINVILLE                KS    75 MPH TSTM GUST
04/10/01   ROOKS

Local storm report, Apr 11, 12:31 AM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
1231 AM CDT WED APR 11 2001

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1218 AM    6 W ALTON                 KS    80 MPH TSTM GUST
04/11/01   OSBORNE

1220 AM    5 W PHILLIPSBURG          KS    1 INCH HAIL
04/11/01   PHILLIPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 7:57 PM CDT	Severe Thunderstorm Warning	GID	Sherman	48 min
Apr 10, 8:22 PM CDT	Severe Thunderstorm Warning	GID	Howard	38 min
Apr 10, 9:12 PM CDT	Severe Thunderstorm Warning	GID	Greeley, Howard, Nance	48 min
Apr 11, 12:44 AM CDT	Severe Thunderstorm Warning	GID	Merrick	46 min
Apr 11, 12:51 AM CDT	Severe Thunderstorm Warning	GID	Webster	39 min
Apr 11, 12:53 AM CDT	Severe Thunderstorm Warning	GID	Polk	52 min
Apr 11, 1:11 AM CDT	Tornado Warning	GID	Webster	49 min
Apr 11, 1:13 AM CDT	Severe Thunderstorm Warning	GID	Nuckolls	47 min
Apr 11, 1:29 AM CDT	Tornado Warning	GID	Nuckolls	31 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2001 Every severe thunderstorm warning in 2001

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.