Alert archive / Nebraska / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 278, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Jul 5, 2004, 6:57 PM CDT for Boone County, Nebraska. It was in force for 48 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
- Jul 5, 2004, 6:57 PM CDT (23:57 UTC)
- Expired
- Jul 5, 2004, 7:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Omaha, NE
- Area
- Counties, with a storm outline in the text
County Boone County, NE
The radar
The Omaha radar (KOAX), 148 km from the middle of the area, began a volume at 23:55 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 nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 12.0 hours before the alert went out and 221 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1348 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 33 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 Jul 5, 2:20 PM CDT, 4 hours 37 minutes earlier.
Area forecast discussion, Jul 5, 2:20 PM CDT, 4 hours 37 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 220 PM CDT MON JUL 5 2004 .DISCUSSION... SHOWERS AND A FEW THUNDERSTORMS CONTINUE TO ROTATE AROUND LOW PRESSURE LOCATED OVER EASTERN NEBRASKA/WESTERN IOWA. THIS IS FORECAST TO MOVE NORTHEAST THIS EVENING AND SHOULD GRADUALLY END THE RAIN CHANCES FROM SOUTHWEST TO NORTHEAST ACROSS THE CWA. TONIGHT ANOTHER MCS IS EXPECTED TO DEVELOP OVER PARTS OF NORTHWEST KANSAS/SOUTHWEST NEBRASKA AND THEN TRAVEL SOUTHEAST FEEDING OFF THE LOW LEVEL JET. CURRENT FORECAST HAS A SMALL CHANCE OF THUNDERSTORMS AFTER MIDNIGHT TONIGHT IN SOUTHEAST NEBRASKA...AND WILL CONTINUE TO CARRY THIS JUST IN CASE THE MCS IS ABLE TO SPREAD A FEW SHOWERS OR STORMS INTO THAT AREA LATE TONIGHT. THINK THE NORTHERN HALF OF THE FORECAST AREA COULD GET A FEW SPRINKLES OR ISOLATED SHOWERS ON TUESDAY MORNING AS ANOTHER UPPER WAVE MOVES ACROSS THE AREA. TUESDAY NIGHT APPEARS DRY...HOWEVER THE BREAK IN RAIN CHANCES MAY BE SHORT LIVED WITH GOOD MOISTURE RETURN FORECAST BY BOTH THE ETA AND GFS ON WEDNESDAY INTO WEDNESDAY NIGHT. SPC DAY 3 OUTLOOK ALSO HAS THE AREA IN A SLIGHT RISK...SO WILL GO AHEAD AND CARRY CHANCES OF THUNDERSTORMS FROM WEDNESDAY AFTERNOON INTO WEDNESDAY NIGHT AS THE WARM AIR ADVECTION AND ISENTROPIC LIFT MOVE ACROSS THE CWA. IN THE EXTENDED...THE MAIN CHALLENGE WILL BE TRYING TO FIND THE DRY PERIODS AS A FRONTAL BOUNDARY OSCILLATES ACROSS THE CENTRAL PLAINS. FOR NOW DECIDED TO CARRY RAIN CHANCES THROUGH THE WEEKEND...BUT DRIED THINGS OUT ON MONDAY AS THE UPPER LEVEL RIDGE BUILDS ACROSS THE AREA. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && KING
Hazardous weather outlook, Jul 5, 5:35 PM CDT, 1 hour 22 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 |
|---|---|---|---|---|
| Jul 5, 12:06 AM CDT | Severe Thunderstorm Warning | OAX | Boone | 39 min |
| Jul 5, 12:30 AM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson, Saline | 60 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2004Every severe thunderstorm warning in 2004
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.