Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 273, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Aug 18, 2003, 5:22 PM CDT for Johnson County, Otoe County, Nebraska. It was in force for 53 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
- Aug 18, 2003, 5:22 PM CDT (22:22 UTC)
- Expired
- Aug 18, 2003, 6:15 PM CDT
- In force
- 53 min
- Issued by
- NWS Omaha, NE
- Area
- Counties, with a storm outline in the text
Counties Johnson County, NE, Otoe County, NE
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 18, 2:05 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.4 hours before the alert went out and 90 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.
- Mixed-layer CAPE
- 871 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 2262 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 18, 2:10 PM CDT, 3 hours 12 minutes earlier.
Area forecast discussion, Aug 18, 2:10 PM CDT, 3 hours 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 210 PM CDT MON AUG 18 2003 TEMPERATURES AND PRECIP CHANCES THROUGH MIDWEEK MAIN CONCERN. SYNOPSIS...SURFACE TROF LOCATED ACROSS CENTRAL NEBRASKA AT 18Z WITH SCATTERED THUNDERSTORMS DEVELOPING FROM NORTH CENTRAL KANSAS INTO NORTHEAST NEBARSKA. EXTENSIVE CLOUDS ACOSS MOST OF THE AREA FROM CONVECTION THIS MORNING THAT MOVED JUST WEST OF THE CWA. SOUTHEAST PARTS OF THE CWA REMAIN VERY HOT WITH TEMPERATURES AROUND 100 FROM OMAHA AND LINCOLN SOUTH. UPPER WAVE CONTINUES TO LINGER OVER THE CENTRAL ROCKIES WITH MAIN FLOW STILL ACROSS CANADA. WITH CONVECTION ALREADY DEVELOPING WILL INCREASE POPS ACROSS MOST OF THE AREA FOR THIS EVENING AT LEAST WITH A CONTINUED CHANCE THROUGH WEDNESDAY AS MODELS TRACK UPPER WAVE SLOWLY ACROSS CENTRAL PLAINS DURING THIS TIME. TEMPERATURES WILL CONTINUE TO BE A CHALLENGE AS SURFACE TROF LINGERS ACROSS CENTRAL NEBRASKA WITH TEMPERATURES DEPENDANT ON AMOUNT OF CLOUD AND PRECIP COVERAGE. WILL CONTINUE WITH CURRENT TEMPERATURE TRENDS IN FORCAST FOR TUESDAY AND BEYOND AT THIS TIME. NOT MUCH CHANGE OTHERWISE TO REMAINDER OF THE FORECAST. .OMA...NONE. FOBERT
Hazardous weather outlook, Aug 18, 5:00 PM CDT, 22 minutes before
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-191000- HAZARDOUS WEATHER OUTLOOK...CORRECTION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 500 PM CDT MON AUG 18 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF EASTERN NEBRASKA AND SOUTHWEST IOWA. .DAY ONE...TONIGHT AND TUESDAY SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS MOST OF THE OUTLOOK AREA THROUGH THE EARLY EVENING HOURS AS A SLOW MOVING SURFACE AND UPPER LEVEL LOW PRESSURE SYSTEM CROSSES THE AREA. THE MAIN SEVERE WEATHER HAZARDS APPEAR TO BE LARGE HAIL AND DAMAGING WINDS. ALSO...HEAT INDICES ARE AGAIN FORECAST TO REACH 100 TO 105 DEGREES TUESDAY AFTERNOON MAINLY NEAR AND SOUTH OF THE PLATTE RIVER IN NEBRASKA AND FROM COUNCIL BLUFFS SOUTHWARD IN SOUTHWEST IOWA. .DAYS TWO THROUGH SEVEN...TUESDAY NIGHT THROUGH MONDAY THE CHANCE FOR THUNDERSTORMS WILL CONTINUE WEDNESDAY AS THE STORM SYSTEM MOVES ACROSS THE PLAINS. SOME THUNDERSTORMS MAY BECOME SEVERE WITH DAMAGING WINDS THE MAIN HAZARD. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER ACTIVATION WILL BE NEEDED TONIGHT. DEE
In the hours before
Local storm report, Aug 18, 4:23 PM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
423 PM CDT MON AUG 18 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0415 PM 1 NE WILBER NE 70 MPH TSTM GUST
08/18/03 SALINE REPORTED BY EMERGENCY
MANAGEMENT.Local storm report, Aug 18, 4:27 PM CDT, 55 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
427 PM CDT MON AUG 18 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0420 PM WILBER NE 65 MPH TSTM GUST
08/18/03 SALINE REPORTED BY EMERGENCY
MANAGEMENT.The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 4:19 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Lancaster, Saline | 41 min |
| Aug 18, 4:32 PM CDT | Severe Thunderstorm Warning | OAX | Seward | 43 min |
| Aug 18, 5:14 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Stanton | 46 min |
| Aug 18, 5:29 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Platte | 46 min |
| Aug 18, 5:47 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Dodge | 28 min |
| Aug 18, 5:56 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Thurston | 49 min |
| Aug 18, 6:15 PM CDT | Severe Thunderstorm Warning | OAX | Burt | 45 min |
| Aug 18, 6:42 PM CDT | Severe Thunderstorm Warning | OAX | Thurston | 18 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.