Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 56, NWS Hastings, NE

April 20, 2001Buffalo County, Phelps County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Apr 20, 2001, 9:48 PM CDT for Buffalo County, Phelps County, Nebraska. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 20, 2001, 9:48 PM CDT (02:48 UTC)
Expired: Apr 20, 2001, 10:45 PM CDT
In force: 57 min
Issued by: NWS Hastings, NE
Area: Whole counties

Counties Buffalo County, NE, Phelps County, NE

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.8 hours before the alert went out and 124 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: 1439 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 195 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.

000 
WUUS53 KGID 210250
SVRGRI
NEC019-137-210345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
948 PM CDT FRI APR 20 2001

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PHELPS COUNTY IN SOUTH CENTRAL NEBRASKA
  BUFFALO COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 1045 PM CDT

* AT 946 PM CDT...DOPPLER RADAR WAS INDICATING A SEVERE THUNDERSTORM 
  9 MILES NORTHWEST OF ELM CREEK...OR ABOUT 13 MILES EAST OF         
  LEXINGTON...MOVING NORTHEAST AT 50 MPH.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE MILLER...
RIVERDALE...PLEASANTON...POOLE AND RAVENNA.

PEOPLE IN PHELPS AND BUFFALO COUNTIES SHOULD SEEK SHELTER IN A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS. WIND GUSTS IN EXCESS OF 80 MPH 
HAVE BEEN REPORTED WITH THIS STORM 

DAMAGING THUNDERSTORMS WINDS IN EXCESS OF 70 MPH ARE STILL POSSIBLE. 
TAKE SHELTER IN YOUR BASEMENT OR IN AN INTERIOR ROOM ON THE 
LOWEST FLOOR.

$$

GURNEY/GUYER

&

NNNN

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 20, 1:55 PM CDT, 7 hours 53 minutes earlier.

Area forecast discussion, Apr 20, 1:55 PM CDT, 7 hours 53 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
155 PM CDT FRI APR 20 2001

...IMMEDIATE THUNDERSTORMS CHCS AND THEN PRECIP FOR SUNDAY CONCERN
THIS TIME AROUND...

DONT PLAN ON MAKING THIS OVERLY LONG IN CASE TSTMS POP UP IN NEAR
FUTURE. WEST/EAST SFC BOUNDARY IN OUR KANSAS CWA HAS MOVED ONLY A
LITTLE NORTH THE PAST SIX HOURS. BEST SFC MOISTURE STILL OFF TO THE
EAST AND SE BUT TRYING ITS BEST TO ADVECT WESTWARD. 850 MOISTURE
WAS ALSO WELL EAST AT 12Z BUT FBY AND RWD PROFILERS HAVE BEEN RUNNING
EAST ALL MORNING SO MODELS LOOK ON TRACK TO BRING SOME OF THAT
MOISTURE IN AS WELL. POTENT SHORTWAVE SEEN ON UPPER AIR ANALYSIS AND
SATELLITE IMAGERY APPROACHING FROM EASTERN COLORADO.  ALSO HAS 70 KT
JET AT 500 MB AT 12Z OVER AZ/WRN NM WHICH WAS MOVING INTO THE
WESTERN PART OF THE PROFILER NETWORK.  OTHER NOTES...TEMPS IN THE
80S...WITH 60S FOR DEWPTS...SOUTH OF BNDRY WHILE COOLER 70S NORTH.
FCST SOUNDINGS OVER GRI FOR 0Z FROM MESOETA HAD PROJECTED CAPES OF
NEAR 3000 J/KG WITH SRH OF OVER 300 M2/S2...AND LCL OF 1800 FT. WILL
HAVE TO KEEP CLOSE WATCH ON SFC WINDS AND BOUNDARY ONCE CONVECTION
STARTS.

FAST MOVING SYSTEM SHOULD CLR MOST OF CWA BY MIDNIGHT. ATTENTION
THEN TURNS TO SUNDAY. MODELS DIFFER ON SPEED OF UPPER LOW BUT ALL
AGREE ON PRECIP GENERATION. ETA IS QUICKER AND MORE ROBUST WITH
QPF. BIGGEST DILEMMA IS PRECIP TYPE. ETA BRINGS 850 TEMPS DOWN TO
ZERO BY SAT EVENG AND KEEPS THEM -2 TO -4C ON SUN IN OUR NWESTERN
CWA. AVN RUNNING ABOUT 10 DEGREES WARMER THAN THAT. THINK ETA IS
TOO AGGRESSIVE WITH SYSTEM AND COLD AIR WHILE AVN LACKING. WILL
DECIDE ABOUT SNOW MENTION IN WEST AFTER COORD WITH LBF.  TEMPS WILL
ALSO HAVE TO BE ADJUSTED FOR SUNDAY.

WILL TAKE QUICK LOOK AT EXTENDED BUT MAIN CHANGE WILL PROBABLY BE TO
REMOVE RAIN CHCS FOR TUES AS LATEST AVN KEEPS UPPER LOW PROGRESSIVE.

.GID...NONE

EWALD

In the hours before

Special weather statement, Apr 20, 4:29 PM CDT, 5 hours 19 minutes before

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-210200-

SEVERE WEATHER OUTLOOK - SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS
NATIONAL WEATHER SERVICE HASTINGS NE
429 PM CDT FRI APR 20 2001

...SPOTTER ACTIVATION WILL LIKELY BE NECESSARY THIS EVENING...

A STRONG LOW PRESSURE AREA WILL CONTINUE TO ADVANCE THROUGH EASTERN
COLORADO AND WESTERN KANSAS THIS EVENING...ALL WHILE A WARM FRONT
LIFTS NORTHWARD FROM INTERSTATE 80 IN SOUTH CENTRAL NEBRASKA.
AS THIS SYSTEM APPROACHES...THUNDERSTORMS WILL CONTINUE TO DEVELOP
ACROSS THE WESTERN SECTIONS OF NEBRASKA AND KANSAS EARLY THIS
EVENING. THESE STORMS ARE EXPECTED TO INITIALLY SPREAD INTO AREAS TO
THE WEST OF HIGHWAY 183 BETWEEN 6 PM AND 8 PM...AND THEN CONTINUE
HEADING EASTWARD THROUGH THE REST OF SOUTH CENTRAL NEBRASKA AND NORTH
CENTRAL KANSAS DURING THE EVENING. DAYTIME HEATING AND AMPLE LOW
LEVEL MOISTURE HAS SET UP A MODERATELY UNSTABLE AIRMASS ACROSS SOUTH
CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS...SETTING THE STAGE FOR
THUNDERSTORMS TO BECOME SEVERE ACROSS THE AREA.

THE BULK OF THIS ACTIVITY IS EXPECTED TO OCCUR IN SOUTH CENTRAL
NEBRASKA AND NORTH CENTRAL KANSAS BETWEEN 7 PM AND 2 AM. THE MAIN
THREAT WITH THESE STORMS WILL BE LARGE HAIL AND DAMAGING WINDS...
ALTHOUGH AN ISOLATED TORNADO CANNOT BE RULED OUT.

AREA EMERGENCY MANAGEMENT OFFICIALS AND SPOTTER GROUPS SHOULD PAY
CLOSE ATTENTION TO THIS DEVELOPING SITUATION...WITH SPOTTER
ACTIVATION A GOOD POSSIBILITY THIS EVENING.

GUYER

Local storm report, Apr 20, 7:28 PM CDT, 2 hours 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
728 PM CDT FRI APR 20 2001

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

0645 PM    PALCO                     KS    60 MPH TSTM GUST
04/20/01   ROOKS

0645 PM    PALCO                     KS    .75 INCH HAIL
04/20/01   ROOKS

0645 PM    DAMAR                     KS    60 MPH TSTM GUST
04/20/01   ROOKS

0645 PM    DAMAR                     KS    .75 INCH HAIL
04/20/01   ROOKS

0705 PM    PLAINVILLE                KS    WIND DAMAGE
04/20/01   ROOKS

Special weather statement, Apr 20, 9:19 PM CDT, 29 minutes before

KSZ007-019-210315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HASTINGS NE
919 PM CDT FRI APR 20 2001

SEVERE THUNDERSTORM WATCH NUMBER 159 HAS BEEN CANCELED FOR PEOPLE
IN...

MITCHELL AND JEWELL COUNTIES.

THUNDERSTORMS HAD MOVED EAST AND OUT OF THE REGION...AND NO LONGER
POSE A THREAT FOR THE PEOPLE IN THIS AREA.

STAY TUNED TO NOAA WEATHER RADIO AND LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

SCHURR

NNNN

Local storm report, Apr 20, 9:28 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
928 PM CDT FRI APR 20 2001

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

0825 PM    3 NE SUPERIOR             NE    WIND DAMAGE
04/20/01   NUCKOLLS                        MACHINE SHED BLOWN
                                           OVER. OUT BUILDING ALSO
                                           DAMAGED. REPORT RELAYED
                                           BY RADIO STATION KRFS.
                                           TIME APPROXIMATE.

GUYER

Local storm report, Apr 20, 9:46 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
946 PM CDT FRI APR 20 2001

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

0750 PM    5 S ROSELAND              NE    TORNADO
04/20/01   ADAMS                           BRIEF TORNADO REPORTED
                                           BY ROSELAND FIRE
                                           DEPARTMENT.

0815 PM    3 E JEWELL                KS    60 MPH TSTM GUST
04/20/01   JEWELL                          ESTIMATED BY SPOT
                                           WEATHER OBSERVER

0930 PM    JOHSON LAKE               NE    .75 INCH HAIL
04/20/01 4  DAWSON                          REPORTED BY DAWSON CO
                                           SHERIFFS OFFICE.

0930 PM    JOHNSON LAKE              NE    .75 INCH HAIL
04/20/01   GOSPER

GUYER/GURNEY/SCHURR/CARBONI

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 20, 7:30 PM CDT	Severe Thunderstorm Warning	GID	Sherman	60 min
Apr 20, 7:53 PM CDT	Severe Thunderstorm Warning	GID	Valley	52 min
Apr 20, 8:14 PM CDT	Severe Thunderstorm Warning	GID	Clay, Nuckolls	46 min
Apr 20, 8:28 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Thayer	62 min
Apr 20, 8:44 PM CDT	Severe Thunderstorm Warning	GID	Hamilton, York	46 min
Apr 20, 8:58 PM CDT	Tornado Warning	GID	Fillmore	32 min
Apr 20, 9:01 PM CDT	Severe Thunderstorm Warning	GID	Dawson, Furnas, Gosper	59 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; the sounding from the Mesonet's radiosonde archive.