Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 150, NWS Omaha, NE

June 23, 2003Gage County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jun 23, 2003, 12:53 AM CDT for Gage County, Nebraska. It was in force for 37 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, 12:53 AM CDT (05:53 UTC)
Expired: Jun 23, 2003, 1:30 AM CDT
In force: 37 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Gage County, NE

The radar

The Omaha radar (KOAX), 116 km from the middle of the area, began a volume at 05:54 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.

Issued	Product	Office	Lasted
Jun 22, 8:30 PM CDT	Tornado Watch	SPC	5 hr
Jun 22, 11:20 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 5.9 hours before the alert went out and 116 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: 2534 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1045 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KOAX 230553
SVROAX
NEC067-230630-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA NE
1253 AM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GAGE COUNTY IN SOUTHEAST NEBRASKA
  THIS INCLUDES THE CITY OF BEATRICE

* UNTIL 130 AM CDT

* AT 1249 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS WITH DAMAGING WIND FROM 4 MILES SOUTH OF
  CLATONIA TO 3 MILES SOUTHWEST OF ODELL...OR FROM 11 MILES NORTHWEST
  OF BEATRICE TO 18 MILES SOUTH OF BEATRICE...MOVING EAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  CORTLAND...WYMORE...BLUE SPRINGS
  FILLEY...BARNESTON
  VIRGINIA...LIBERTY...ADAMS

FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF
YOUR HOME OR BUSINESS. STAY AWAY FROM WINDOWS AND GLASS DOORS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM CDT MONDAY MORNING FOR
EASTERN NEBRASKA.

LAT...LON 4052 9690 4000 9689 4000 9647 4051 9649

$$

MILLER

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 Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 22, 2:20 PM CDT, 10 hours 33 minutes earlier.

Area forecast discussion, Jun 22, 2:20 PM CDT, 10 hours 33 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
220 PM CDT SUN JUN 22 2003

...UPDATED TO INCLUDE FLOOD WATCH...

FORECAST CHALLENGE IS SVR TSTMS TONIGHT AND INTO MON.

VERY MOIST AND UNSTABLE AIRMASS IS SITUATED ACROSS REGION THIS
AFTERNOON.  DAYTIME HEATING ACROSS MUCH OF THE AREA HAS BEEN
INHIBITED BY LEFT OVER CONVECTIVE CLOUD COVER AND IS KEEPING CAPE
VALUES IN THE 400-1400 J/KG RANGE.  SFC TROF EXTENDING FM SD INTO
WRN KS HAS A FEW DISTINCT LOWS ALONG IT.  18Z SFC ANALYSIS SHOWS ONE
LOCATED JUST W OF KLBF...WITH WRM FNT EXTENDING SEWD TO N CNTRL KS.
THIS BOUNDARY OF CONCERN FOR CONVECTIVE DEVELOPMENT OVER THE
AFTERNOON HOURS WITH DAYTIME HEATING ALLOWING CAPE VALUES TO BE
MUCH HIGHER.  SOME FLOODING POTENTIAL EXISTS ACROSS THE SRN HALF OF
THE CWA OVERNIGHT AS PWS OFF THE 18Z OAX AND TOP SOUNDINGS ARE 1.73
AND 2.09 RESPECTIVELY.  CORFIDI VECTORS SLOW DOWN DRAMATICALLY
AFTER 06Z AND LLJ STRENGTHENS TO 55-60 KTS AROUND SAME TIME FRAME.
ALL OF CWA IN MOD RISK...SEE SWODY1 FOR FURTHER DETAILS.

STILL APPEARS THAT STRONG CAP WILL BE IN PLACE ACROSS MUCH OF THE
FORECAST AREA DURING THE EARLY AFTERNOON ON MONDAY.  STORMS SHOULD
FIRE AGAIN LATE AFTERNOON...ESPECIALLY OVER NERN NEB NEAR BEST LOW
LEVEL CONVERGENCE AND LOWERING CONVECTIVE INHIBITION AREA.  NERN NEB
AND NWRN IA IN MOD RISK.

THUNDERSTORMS POSSIBLE AGAIN TUESDAY NIGHT AS UPPER TROF BEGINS TO
MOVE EAST SENDING SFC LO THRU CNTRL NEB. FNT THEN PUSHES THRU DURING
THE DAY WEDNESDAY SO HAVE CONTINUED CHANCE OF SHOWERS AND
THUNDERSTORMS THEN. NO MAJOR CHANGES HAVE BEEN MADE TO THE EXTENDED.

.OMA...FLOOD WATCH TNT SERN NEB AND FREMONT COUNTY IA.

GRIFFIS

Hazardous weather outlook, Jun 22, 5:50 PM CDT, 7 hours 3 minutes before

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-231100-

HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
550 PM CDT SUN JUN 22 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF EASTERN NEBRASKA
AND SOUTHWEST IOWA.

.DAY ONE...TONIGHT AND MONDAY

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER ALL OF
EASTERN NEBRASKA TONIGHT.   A TORNADO WATCH HAS BEEN ISSUED FOR
MUCH OF THE AREA.  SUPERCELLS ARE LIKELY TO DEVELOP EARLY THIS
EVENING OVER THE AREA WEST OF A LINE FROM NORFOLK TO LINCOLN.
THE PRIMARY WEATHER HAZARDS WILL BE VERY LARGE HAIL...DAMAGING
WINDS AND TORNADOES.  THE ATMOSPHERE IS VERY MOIST AND EXTREMELY
UNSTABLE.  AN UPPER LEVEL DISTURBANCE MOVING NORTHEAST OUT OF
EASTERN COLORADO AND WYOMING WILL HELP AID IN THUNDERSTORM
DEVELOPMENT OVER EASTERN NEBRASKA THIS EVENING AND THEN WILL MOVE
EAST INTO WESTERN IOWA DURING THE OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...MONDAY NIGHT THROUGH SUNDAY

THE CHANCE OF THUNDERSTORMS...SOME POSSIBLY SEVERE...WILL
CONTINUE MONDAY EVENING INTO TUESDAY AS VERY UNSTABLE AIR REMAINS
IN PLACE ACROSS THE REGION.  THERE WILL ALSO BE A CHANCE OF
THUNDERSTORMS ACROSS PARTS OF EASTERN NEBRASKA AND SOUTHWEST IOWA
WEDNESDAY THROUGH FRIDAY...HOWEVER IT IS TOO SOON TO DETERMINE
THE COVERAGE AND INTENSITY OF THESE THUNDERSTORMS AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTERS SHOULD BE ACTIVATED OR PREPARING TO ACTIVATE THIS
EVENING.  SPOTTERS ACTIVATION MAY BE REQUIRED ON MONDAY
AFTERNOON.

SMITH

In the hours before

Local storm report, Jun 22, 11:03 PM CDT, 1 hour 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1103 PM CDT SUN JUN 22 2003

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

1055 PM    LINCOLN                   NE   .75 INCH HAIL
06/22/03   LANCASTER                      YANKEE HILL RD AND S
                                          25TH. REPORTED BY HAM
                                          RADIO OPERATOR.

Local storm report, Jun 22, 11:22 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1122 PM CDT SUN JUN 22 2003

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

1117 PM    2 W DAVEY                 NE   .75 INCH HAIL
06/22/03   LANCASTER                      REPORTED BY HAM RADIO
                                          OPERATOR.

Local storm report, Jun 22, 11:33 PM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1133 PM CDT SUN JUN 22 2003

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

1119 PM    5 W WAVERLY               NE   .75 INCH HAIL
06/22/03   LANCASTER                      REPORTED BY HAM RADIO
                                          OPERATOR.

1122 PM    LINCOLN                   NE   .75 INCH HAIL
06/22/03   LANCASTER                      HAVELOCK AND N.148TH.
                                          REPORTED BY HAM RADIO
                                          OPERATOR.

1125 PM    LINCOLN                   NE   .75 INCH HAIL
06/22/03   LANCASTER                      ADAMS AND N.162ND.
                                          REPORTED BY HAM RADIO
                                          OPERATOR.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 8:01 PM CDT	Severe Thunderstorm Warning	OAX	Jefferson	59 min
Jun 22, 8:37 PM CDT	Severe Thunderstorm Warning	OAX	Boone	38 min
Jun 22, 9:50 PM CDT	Severe Thunderstorm Warning	OAX	Boone	40 min
Jun 22, 10:06 PM CDT	Severe Thunderstorm Warning	OAX	Saline	24 min
Jun 22, 11:00 PM CDT	Severe Thunderstorm Warning	OAX	Lancaster	45 min
Jun 22, 11:29 PM CDT	Severe Thunderstorm Warning	OAX	Cass, Otoe	61 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2003 Every 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.