Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 239, NWS Omaha, NE

July 9, 2003Richardson County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jul 9, 2003, 4:33 PM CDT for Richardson County, Nebraska. It was in force for 42 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: Jul 9, 2003, 4:33 PM CDT (21:33 UTC)
Expired: Jul 9, 2003, 5:15 PM CDT
In force: 42 min
Issued by: NWS Omaha, NE
Area: Counties, with a storm outline in the text

County Richardson County, NE

The radar

The Omaha radar (KOAX), 140 km from the middle of the area, began a volume at 21:35 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
Jul 9, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.6 hours before the alert went out and 135 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: 1183 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 1049 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 103 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 KOAX 092133
SVROAX
NEC147-092215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA NE
433 PM CDT WED JUL 9 2003

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN RICHARDSON COUNTY IN SOUTHEAST NEBRASKA

* UNTIL 515 PM CDT

* AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES WEST OF BARADA...OR ABOUT 11 MILES
  NORTH OF FALLS CITY...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BARADA AROUND 440 PM CDT

LARGE HAIL IS LIKELY WITH THIS STORM. GO TO A SAFE PLACE INSIDE YOUR
HOME OR BUSINESS. STAY AWAY FROM WINDOWS AND GLASS DOORS.

LAT...LON 4026 9565 4015 9565 4013 9544 4026 9556

$$

SMITH

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 Jul 9, 2:30 PM CDT, 2 hours 3 minutes earlier.

Area forecast discussion, Jul 9, 2:30 PM CDT, 2 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
230 PM CDT WED JUL 9 2003

MAIN FORECAST ISSUE WILL BE THUNDERSTORM CHANCES THIS EVENING.

SURFACE ANALYSIS AT 18Z PLACED A COLD FRONT FROM SERN SOUTH DAKOTA
INTO SOUTH CENTRAL NEBRASKA.  THIS FEATURE IS FORECAST BY THE 12Z
MM5 AND 06Z ETA TO MOVE THROUGH THE ENTIRE OAX CWA BY 03Z.  UNTIL IT
EXITS THE AREA...HAVE OPTED TO HOLD ONTO A CHANCE OF THUNDER IN
SOUTHEAST NEBRASKA AND SOUTHWEST IOWA...ALSO NEW WATCH FOR SOUTHWEST
IOWA COUNTIES RUNS UNTIL 8 PM.  ONCE THE FRONT SWEEPS
THROUGH...THINK CURRENT FORECAST OF MAINLY DRY WEATHER STILL LOOKS
REASONABLE...BUT NORTHWEST FLOW ALOFT AND ANY RIPPLES THAT MAY TRY
TO DEVELOP IN IT WILL HAVE TO BE WATCHED OVER THE NEXT FEW DAYS.

IN THE EXTENDED...AGAIN KEPT THE MAINLY DRY LOOK TO THE
FORECAST...THOUGH THE 06Z GFS DOES HINT AT THE POSSIBILITY OF A
BOUNDARY CROSSING THE AREA SOMETIME ON TUESDAY.  THE ECMWF IS
SLOWER...AND OPTED TO FALL IN LINE WITH MOST SURROUNDING OFFICES BY
KEEPING THE FORECAST DRY AT THIS POINT.

.OMA...NONE.

KING

Hazardous weather outlook, Jul 9, 12:05 PM CDT, 4 hours 28 minutes before

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-092300-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1205 PM CDT WED JUL 9 2003

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THIS IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON ACROSS PARTS OF
EASTERN NEBRASKA AND SOUTHWEST IOWA. SOME STORMS MAY REACH SEVERE
LEVELS SOUTH OF AN ONAWA TO FREMONT TO SEWARD LINE.  LARGE HAIL
AND DAMAGING WINDS WILL BE THE PRIMARY HAZARDS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO SEVERE WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON.

FOBERT

In the hours before

Local storm report, Jul 9, 11:37 AM CDT, 4 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1137 AM CDT WED JUL 09 2003

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

1110 AM    3 E BENTLEY               IA   1.75 INCH HAIL
07/09/03   POTTAWATTAMIE                  REPORTED BY MEDIA.

1133 AM    HANCOCK                   IA   .75 INCH HAIL
07/09/03   POTTAWATTAMIE                  REPORTED BY STORM
                                          SPOTTER.

Local storm report, Jul 9, 3:20 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
320 PM CDT WED JUL 09 2003

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

210 PM     2 SE PERSIA               IA   1.00 INCH HAIL
07/09/03   HARRISON                       REPORTED BY PUBLIC.

225 PM     1 SE TENNANT              IA   .75 INCH HAIL
07/09/03   SHELBY                         REPORTED BY PUBLIC.

250 PM     1 E HARLAN                IA   1.00 INCH HAIL
07/09/03   SHELBY                         REPORTED BY LAW
                                          ENFORCEMENT.

310 PM     AVOCA                     IA   1.00 INCH HAIL
07/09/03   POTTAWATTAMIE                  REPORTED BY PUBLIC.

Local storm report, Jul 9, 3:51 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
351 PM CDT WED JUL 09 2003

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

0210 PM    2 SE PERSIA               IA   1 INCH HAIL
07/09/03   HARRISON                       REPORTED BY PUBLIC.

0225 PM    1 SE TENNANT              IA   .75 INCH HAIL
07/09/03   SHELBY                         REPORTED BY PUBLIC.

0250 PM    1 E HARLAN                IA   1 INCH HAIL
07/09/03   SHELBY                         REPORTED BY LAW
                                          ENFORCEMENT OFFICIAL.

0310 PM    AVOCA                     IA   1 INCH HAIL
07/09/03   POTTAWATTAMIE                  REPORTED BY PUBLIC.

0320 PM    3 NE AVOCA                IA   1 INCH HAIL
07/09/03   SHELBY                         REPORTED BY PUBLIC.

Local storm report, Jul 9, 4:20 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
420 PM CDT WED JUL 09 2003

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

0250 PM    2 SW ELK HORN             IA   .88 INCH HAIL
07/09/03   SHELBY                         REPORTED BY PUBLIC.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 1:26 AM CDT	Severe Thunderstorm Warning	OAX	Antelope, Pierce	49 min
Jul 9, 1:38 AM CDT	Severe Thunderstorm Warning	OAX	Boone	52 min
Jul 9, 2:01 AM CDT	Severe Thunderstorm Warning	OAX	Cedar	44 min
Jul 9, 2:17 AM CDT	Severe Thunderstorm Warning	OAX	Colfax, Platte	58 min
Jul 9, 2:50 AM CDT	Severe Thunderstorm Warning	OAX	Dodge	25 min
Jul 9, 2:58 AM CDT	Severe Thunderstorm Warning	OAX	Saunders	47 min
Jul 9, 3:14 AM CDT	Severe Thunderstorm Warning	OAX	Burt, Douglas, Washington	46 min
Jul 9, 3:17 AM CDT	Severe Thunderstorm Warning	OAX	Dodge	13 min
Jul 9, 4:18 PM CDT	Severe Thunderstorm Warning	OAX	Pawnee	42 min
Jul 9, 5:15 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	25 min
Jul 9, 6:30 PM CDT	Severe Thunderstorm Warning	OAX	Richardson	30 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.