Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 155, NWS Hastings, NE

June 17, 2001Clay County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 17, 2001, 9:08 PM CDT for Clay County, Nebraska. It was in force for 37 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: Jun 17, 2001, 9:08 PM CDT (02:08 UTC)
Expired: Jun 17, 2001, 9:45 PM CDT
In force: 37 min
Issued by: NWS Hastings, NE
Area: Whole counties

County Clay County, NE

What was reported inside it

Time	Report	Where	Remark
Jun 17, 9:30 PM CDT	Hail 0.75	Clay Center, 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, 2.1 hours before the alert went out and 167 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: 3594 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1607 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 242 m²/s²
0-3 km storm-relative helicity: 471 m²/s²
Significant tornado parameter: 2.5
Supercell composite: 31.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 180210
SVRGRI

NEC035-180245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
908 PM CDT SUN JUN 17 2001

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CLAY COUNTY IN SOUTH CENTRAL NEBRASKA

* UNTIL 945 PM CDT

* AT 905 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER EDGAR...OR ABOUT 27 MILES SOUTHEAST OF    
  HASTINGS...MOVING EAST AT 20 MPH. THE CLUSTER OF THUNDERSTORMS     
  EXTENDED WESTWARD TO NEAR FAIRFIELD.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ONG AT 920 PM CDT
  EDGAR AT 920 PM CDT

PEOPLE IN SOUTHERN CLAY COUNTY SHOULD SEEK SHELTER IN A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER
THREAT IS LARGE HAIL.

$$

EWALD
LAT...LON 4048 9827 4035 9826 4035 9782 4051 9782

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 Jun 17, 2:21 PM CDT, 6 hours 47 minutes earlier.

Area forecast discussion, Jun 17, 2:21 PM CDT, 6 hours 47 minutes before

SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
221 PM CDT SUN JUN 17 2001

MAIN CONCERN FOR FORECAST IS TSTM CHANCES

MORNING UPPER AIR ANALYSIS PLACED 100KT H3 JET ALONG THE US/CANADIAN
BORDER.  FLOW WAS NEARLY ZONAL WITH WEAK SHORTWAVES EVIDENT ON
ANALYSIS MOVING THROUGH FLOW.  ONE SUCH WAVE HAD TRIGGERED WIDELY
SCATTERED -SHRA/-TSRA EARLIER THIS MORNING.  TEMPS AT H7 WERE
BEGINNING THEIR ASCENT WITH +12C NOTED AT LBF AND DDC.  AT H85 A
MOIST AXIS OF 10C DPS EXTENDED NORTH FROM WEST TX INTO NEB...WHILE
H85 WARM FRONT WAS LOCATED ALONG THE NEB/KS BORDER.  AS OF 18Z...SFC
FRONT HAD LIFTED INTO SOUTHERN NEBRASKA AND KUEX INDICATES -TSRA
DEVELOPMENT NORTH OF FRONTAL BOUNDARY.

ZONE BREAKUP WILL DEPENDENT UPON RADAR PICTURE AT ZONE ISSUANCE
TIME...ALTHOUGH CURRENT THINKING IS WIDELY SCT -TSRA WORDING FOR THE
EVENING NORTH OF BOUNDARY.  WILL CONTINUE TO MONITOR FOR ANY TSTM
ACTIVITY IN THE VICINITY OF THE DRY LINE AS WELL.  OVERNIGHT...
MAJORITY OF TSTM ACTIVITY SHLD REFOCUS FURTHER NORTH...NORTH OF THE
WARM FRONT IN NORTHERN NEBRASKA AND SOUTH DAKOTA.  ETA VERY
AGGRESSIVE WITH LLVL JET OF 70KTS TONIGHT WHICH WILL HELP SUSTAIN
CONVECTION TO THE NORTH.  MCS DEVELOPMENT POSSIBLE IN SOUTH DAKOTA
AND CORFIDI VECTOR MOTION DEPICTS A S/SE TRACK AS LLVL JET
INCREASES...SO WILL CONTINUE WITH POPS FOR NIGHTTIME PERIOD.  GUSTY
SOUTH WIND COMPONENT WILL HOLD UP TEMPS TONIGHT AND WILL STAY ABOVE
GUIDANCE FOR LOWS...CLOSE TO CURRENT FORECAST.

STRONGER SHORTWAVE TRACKING THRU NORTHERN PLAINS WILL ADVANCE A COOL
FRONT INTO WESTERN NEBRASKA BY MONDAY MORNING.  MODELS DIFFER
SLIGHTLY ON TIMING OF FRONT AND DEGREE OF CAPPING ACROSS CWA EARLY
IN THE DAY.  VERY WARM H7 TEMPS OF 15C PROGGED BY ETA.  WENT WITH
COMPROMISE OF ETA/AVN FOR TIMING.  CONVERGENCE ALONG FRONTAL
BOUNDARY...AND COOLING ALOFT WITH TROF AXIS SHLD EFFECTIVELY ERODE
CAP BY MONDAY NIGHT WITH TSTMS DEVELOPING ALONG BOUNDARY.  SE
COUNTIES WILL STAND BEST CHC OF TSTMS BASED ON TIMING OF DYNAMICS
AND WILL INCREASE POPS SLIGHTLY.  SVR STORMS POSSIBLE AS WELL.

SHRA/TSRA MAY LINGER INTO THE MORNING TUESDAY ESP IN THE SE.
BOUNDARY THEN STALLS ACROSS KANSAS TUESDAY...AND REDEVELOPMENT OF
STORMS POSSIBLE IN AFTERNOON.  WILL MAINTAIN POPS IN SOUTHERN ZONES
THRU TUESDAY NIGHT AS UPSLOPE FLOW DEVELOPS AND NEXT H7 TROF AXIS
APPROACHES.  BOUNDARY LOCATION WILL NEED TO BE MONITORED TO ADJUST
POPS N/S THIS PERIOD.

COOL FRONT AND EXPECTED CLOUD COVER TUESDAY WILL KEEP TEMPS BELOW
NORMAL.  SOME CLEARING EXPECTED ACROSS THE NORTH TUESDAY NIGHT WITH
TEMPS DROPPING BACK NR 50.

IN THE EXTENDED...LATEST MRF IS MORE AMPLIFIED IN BUILDING RIDGE
ACROSS THE CENTRAL US BY LATE IN THE WEEK THAN PREVIOUS RUN...AND
THE LATEST RUN IS MORE IN LINE WITH UKMO/ECMWF.  NOGAPS HOWEVER IS
NOT AS AMPLIFIED WITH RIDGE PATTERN SETTING UP BY THE END OF THE
WEEK.  WILL LEAVE CHC SHRA/TSRA IN FCST WEDNESDAY UNTIL SHORTWAVE
PASSES AND FRONTAL BOUNDARY PUSHES FURTHER SOUTH OF CWA.  THEN
GENERALLY DRY REMAINDER OF EXTENDED PERIOD WITH BUILDING RIDGE.

.GID...NONE.

DFAY

In the hours before

Local storm report, Jun 17, 7:18 PM CDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
718 PM CDT SUN JUN 17 2001

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

0715 PM    HOLSTEIN                  NE    1 INCH HAIL
06/17/01   ADAMS                           REPORTED BY ADAMS
                                           COUNTY EOC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 7:10 PM CDT	Severe Thunderstorm Warning	GID	Adams	65 min
Jun 17, 8:14 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Thayer	46 min
Jun 17, 9:34 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Thayer	56 min
Jun 18, 5:46 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Dawson	29 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.