Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 178, NWS Hastings, NE

June 23, 2003Dawson County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jun 23, 2003, 9:38 PM CDT for Dawson County, Nebraska. It was in force for 82 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 23, 2003, 9:38 PM CDT (02:38 UTC)
Expired
Jun 23, 2003, 11:00 PM CDT
In force
82 min
Issued by
NWS Hastings, NE
Area
Counties, with a storm outline in the text

County Dawson County, NE

The radar

The Grand Island radar (KUEX), 135 km from the middle of the area, began a volume at 02:40 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 23, 5:35 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.6 hours before the alert went out and 68 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4886 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
4886 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
7.9
Supercell composite
32.1

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KGID 240238
SVRGID
NEC047-240400-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE HASTINGS NE
938 PM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A

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

* UNTIL 1100 PM CDT

* AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTH OF COZAD...OR ABOUT 13 MILES
  SOUTHWEST OF LEXINGTON...MOVING NORTH AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LEXINGTON AT 945 PM CDT...
  COZAD AT 950 PM CDT...
  SUMNER AT 1010 PM CDT...

PEOPLE IN DAWSON COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.

THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL THE SIZE OF GOLFBALLS.

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN AND
OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO WARNING.

LAT...LON 4071 10019 4069 9950 4100 9946 4103 10016
$$
FAY
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 23, 2:30 PM CDT, 7 hours 8 minutes earlier.

Area forecast discussion, Jun 23, 2:30 PM CDT, 7 hours 8 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HASTINGS NE
230 PM CDT MON JUN 23 2003

...ANOTHER POSSIBLE CHANCE FOR SEVERE STORMS...

OVERALL...NO CHANGES OTHER THAN MINOR TWEAKS TO CURRENT AS IT
CONTINUES TO LOOK GOOD.

LOTS OF WARM AIR MOVING OVER TOP TODAY. SOMEWHAT OF ELEVATED MIXED
LAYER WESTERN NE...AND SFC ELEVATION AND HEAT...WILL HELP
DESTABILIZE AND BLOW CAP WEST.  HUGE AMOUNTS OF ENERGY OVR OUR AREA
KEEP US IN PRECARIOUS POSITION...IF CAP BLOWS WATCH OUT...IF
NOT...HOT AND SWEATY. CAN NOT BELIEVE I AM SAYING THIS...BUT AFTER
YESTERDAY I HOPE FOR THE LATTER. ONE BUG IN THE MIX HOWEVER WILL BE
50 TO 60 KT LL JET PUSHING OVERHEAD OVERNIGHT WHICH WILL MAINTAIN
CONVECTION TO THE EAST...WITH BEST CHC OVR NRN CWA. RIGHT NOW MAIN
BOUNDARY CUTS THROUGH KS PORTION OF CWA...AND CURVES UP THROUGH
GOSPER COUNTY...WITH BEST SFC FORCING W AND N OF NORTH PLATTE. WILL
PLAY WAIT AND WATCH GAME THROUGH REST OF AFTERNOON WATCHING REGION
BETWEEN HDE AND LBF AND POINTS WEST FOR INDICATIONS OF INITIATION.
REGION TO SOUTH AND EAST OF THIS...PARTICULARLY KS COUNTIES LIKELY
MUCH TOO CAPPED TO BUST EVEN WITH HELP OF CONVERGENT TROUGH. IF IT
GOES...HAIL/WIND LIKELY SEVERE BEST BETS...WITH TORNADO CHC...IF
ANY...BEST FAR NW QUAD BETWEEN DAWSON AND VALLEY. WILL CONTINUE CHC
TO SCHC WORDING FOR THIS EVENING BASED ON SEVERE POTENTIAL.

BEYOND TODAY...DECENT CHANCES FOR STORMS THE NEXT COUPLE OF DAYS
WITH BEST CHANCES CONTINUING FROM PM TUE THROUGH AM THU. FOCUS FOR
BEST PRECIP WILL LAY OVER NRN HALF CWA WHERE SFC FRONT AND UPR
SHORTWAVE STRENGTH WILL BE THE BEST.  OTHERWISE...COOLING FOR WED
AND THU...THEN SLOW WARMING TREND FRI THOUGH MON WITH NEXT WEAK UPR
LVL SHORTWAVE THROUGH ON SUNDAY. NOT ENOUGH CONFIDENCE IN TIMING OF
THIS WAVE TO PUT CHC IN AT THIS TIME.

.GID...FLOOD WARNING CONTINUES TIL 530 PM FOR THAYER AND JEWELL
COUNTIES.

10
Hazardous weather outlook, Jun 23, 6:04 PM CDT, 3 hours 34 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-241200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
604 PM CDT MON JUN 23 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND
PARTS OF NORTH CENTRAL KANSAS.

.DAY ONE...TONIGHT

SCATTERED THUNDERSTORMS ARE AGAIN POSSIBLE THIS EVENING ACROSS
SOUTH CENTRAL NEBRASKA...MAINLY TO THE NORTH OF HIGHWAY 6.  SHOULD
THESE STORMS DEVELOP...THEY ARE EXPECTED TO RAPIDLY BECOME
SEVERE WITH LARGE HAIL UP TO BASEBALL SIZE...DAMAGING WIND...AND
POSSIBLY TORNADOES.  HOWEVER...A COLD FRONT ACROSS WESTERN NEBRASKA
IS EXPECTED TO BE THE PRIMARY FOCUS AREA FOR THUNDERSTORMS AND WARM
TEMPERATURES IN THE MIDDLE LEVELS OF THE ATMOSPHERE WILL LIMIT
INITIAL DEVELOPMENT.

VERY HEAVY RAIN IS AGAIN POSSIBLE WITH THUNDERSTORMS THAT DO
DEVELOP.  THIS MAY PROMPT ADDITIONAL FLASH FLOODING OVER PARTS
OF SOUTH CENTRAL NEBRASKA.

EMERGENCY MANAGERS SHOULD CONTINUE TO MONITOR THIS DEVELOPING SEVERE
WEATHER SITUATION THROUGHOUT THE REMAINDER OF THIS EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

EXTREMELY UNSTABLE CONDITIONS ARE EXPECTED TO REDEVELOP AGAIN LATE
TUESDAY AFTERNOON AND EVENING OVER PARTS OF SOUTH CENTRAL NEBRASKA...
WITH ANOTHER OUTBREAK OF SEVERE THUNDERSTORMS POSSIBLE. LARGE HAIL...
DAMAGING WINDS AND ISOLATED TORNADOES WOULD BE POSSIBLE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE NEEDED THIS EVENING.

9

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 8:28 PM CDTSevere Thunderstorm WarningGIDFurnas62 min
Jun 23, 9:10 PM CDTSevere Thunderstorm WarningGIDGosper65 min
Jun 23, 9:26 PM CDTSevere Thunderstorm WarningGIDHamilton, Polk64 min
Jun 23, 9:27 PM CDTSevere Thunderstorm WarningGIDFurnas78 min
Jun 23, 9:54 PM CDTSevere Thunderstorm WarningGIDBuffalo66 min
Jun 23, 10:04 PM CDTTornado WarningGIDDawson41 min
Jun 23, 10:16 PM CDTSevere Thunderstorm WarningGIDGosper29 min
Jun 23, 10:28 PM CDTSevere Thunderstorm WarningGIDSherman72 min
Jun 23, 10:31 PM CDTSevere Thunderstorm WarningGIDPhelps44 min
Jun 23, 10:37 PM CDTSevere Thunderstorm WarningGIDBuffalo23 min
Jun 23, 10:42 PM CDTSevere Thunderstorm WarningGIDDawson48 min
Jun 23, 10:43 PM CDTSevere Thunderstorm WarningGIDValley62 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2003Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.