Alert archive / Nebraska / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 2, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Apr 5, 2010, 9:09 PM CDT for Gage County, Pawnee County, Nebraska. It was in force for 36 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
- Apr 5, 2010, 9:09 PM CDT (02:09 UTC)
- Expired
- Apr 5, 2010, 9:45 PM CDT
- In force
- 36 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Gage County, NE, Pawnee County, NE
The radar
The Omaha radar (KOAX), 125 km from the middle of the area, began a volume at 02:11 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 5, 7:39 PM CDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.2 hours before the alert went out and 125 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
- 2 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 621 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 225 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 Apr 5, 2:35 PM CDT, 6 hours 34 minutes earlier.
Area forecast discussion, Apr 5, 2:35 PM CDT, 6 hours 34 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 235 PM CDT MON APR 5 2010 .SHORT TERM...TONIGHT THROUGH THURSDAY. AREA OF CONVECTION THAT HAD SPREAD INTO SOUTHEAST NEBRASKA OUT OF KANSAS LATE IN THE MORNING WAS OVER CENTRAL PARTS OF IOWA AT 18Z WITH A WARM FRONT STRETCHING ACROSS NORTHERN KANSAS INTO NORTHERN MISSOURI. LATEST MODELS SUGGEST SURFACE WAVE WILL MOVE FROM EASTERN COLORADO TO SOUTHEAST NEBRASKA OVERNIGHT AND LIFT WARM FRONT SLOWLY NORTH EXTENDING FROM SOUTHEAST NEBRASKA ACROSS SOUTHERN IOWA BY TUESDAY MORNING. PRIMARY CONVECTION EXPECTED TO FOCUS NORTH OF THIS BOUNDARY MAINLY EAST OF THE AREA ACROSS CENTRAL IOWA WHERE NOSE OF LLJ SETS UP. NONETHELESS HAVE MAINTAINED LIKELY POPS ACROSS CENTRAL PARTS OF THE CWA AS ELEVATED INSTABILITY AXIS PIVOTS SOUTH DURING THIS TIME. APPEARS CONVECTION SHOULD REMAIN ELEVATED ACROSS AREA WITH LARGE HAIL PRIMARY SEVERE THREAT TONIGHT. TUESDAY WILL BE A BIT TRICKY AS DRY SLOT SETS UP OVER THE SOUTHEAST PART OF THE CWA ASSOCIATED WITH THE SURFACE LOW WITH MAIN FOCUS NORTH AND EAST OF THE AREA. UPPER WAVE THEN COMES INTO PLAY LATE TUESDAY INTO WEDNESDAY WITH FASTER TREND OF THE GFS PREFERRED IN MOVING SYSTEM OUT ON WEDNESDAY. .LONG TERM...THURSDAY NIGHT THROUGH MONDAY. EXTENDED PORTION STILL LOOKING GENERALLY DRY AND WARMER AS RIDGING DEVELOPS OVER EAST HALF OF THE NATION IN ADVANCE OF NEXT WAVE COMING INTO THE WESTERN CONUS LATE IN THE PERIOD. I && .AVIATION... TAF SITES KOFK/KOMA/KLNK 18Z TAFS SURFACE WARM FRONT THAT WAS LIFTING SLOWLY N WAS NEAR KCNK AT 05/18Z. FRONT WILL LIKELY MOVE INTO THE SERN CORNER OF NEBRASKA THIS EVENING AND LIFT TO NEAR OMAHA TUESDAY MORNING. CIGS WERE LOWERING AHEAD OF BOUNDARY AND GENERALLY SHOULD BE IN MVFR CATEGORY AT TAF SITES MUCH OF THE FORECAST PD...ALTHOUGH THEY COULD BE ABOVE 3000 FT FOR A WHILE THIS AFTN...ESPECIALLY FROM KOFK TO KOMA. CIGS WILL LIKELY LIFT SOUTH OF WARM FRONT NEAR KOMA/KLNK...ESPECIALLY TOWARD 06/15-18Z. FORECAST SOUNDINGS INDICATED TSTMS WL REDEVELOP OR MOVE INTO REGION TNGT WITH 06/05-10Z MOST LIKELY TIME PD. PROB30S WERE INCLUDED AT TAF SITES DURING THAT TIME. ANY STORM TONIGHT COULD PRODUCE LARGE HAIL IN ADDITION TO GUSTY WINDS ALTHOUGH CHCS AT TAF SITES SEEMED TO REMOTE TO CARRY JUST YET. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && FOBERT/CHERMOK
Hazardous weather outlook, Apr 5, 5:30 PM CDT, 3 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 530 PM CDT MON APR 5 2010 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-061230- MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT- PAGE-KNOX-CEDAR-THURSTON-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-BURT-PLATTE-COLFAX-DODGE-WASHINGTON-BUTLER- SAUNDERS-DOUGLAS-SARPY-SEWARD-LANCASTER-CASS-OTOE-SALINE- JEFFERSON-GAGE-JOHNSON-NEMAHA-PAWNEE-RICHARDSON- 530 PM CDT MON APR 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...TONIGHT AND TUESDAY THUNDERSTORMS ARE POSSIBLE THIS EVENING AND OVERNIGHT AS A WARM FRONT LIFTS INTO SOUTHEASTERN NEBRASKA AND SOUTHWESTERN IOWA. IF THUNDERSTORMS CAN DEVELOP THIS EVENING IN FAR SOUTHEAST NEBRASKA AND SOUTHWEST IOWA...THEY WOULD CARRY A THREAT FOR LARGE HAIL AND DAMAGING WINDS. OTHERWISE...MORE WIDESPREAD STORMS WILL DEVELOP OVERNIGHT...WITH THE POSSIBILITY FOR SMALL HAIL IN THE STRONGER THUNDERSTORMS. THUNDERSTORMS ARE POSSIBLE AGAIN ON TUESDAY AS A SLOW-MOVING SYSTEM CONTINUES TO MOVE ACROSS THE PLAINS. THE GREATEST POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS WOULD BE SOUTH OF A LINE FROM AROUND FAIRBURY NEBRASKA TO AROUND HARLAN IOWA. .DAYS TWO THROUGH SEVEN...TUESDAY NIGHT THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING...PARTICULARLY IN SOUTHEAST NEBRASKA AND SOUTHWEST IOWA. MAYES
In the hours before
Special weather statement, Apr 5, 8:06 PM CDT, 1 hour 3 minutes before
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</html>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 12:32 AM CDT | Severe Thunderstorm Warning | OAX | Burt, Dodge, Washington | 28 min |
| Apr 5, 11:54 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 36 min |
| Apr 6, 1:11 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 19 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2010Every severe thunderstorm warning in 2010
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.