Severe Thunderstorm Warning 412, NWS Omaha, NE

Issued

Sep 7, 2001, 1:55 AM CDT (06:55 UTC)

Expired

Sep 7, 2001, 2:30 AM CDT

In force

35 min

Issued by

NWS Omaha, NE

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Antelope County, NE, Boone County, NE

The Omaha radar (KOAX), 156 km from the middle of the area, began a volume at 06:57 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.

726 
WUUS53 KOAX 070656
SVROMA
NEC003-011-070730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA NE
155 AM CDT FRI SEP 7 2001

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN ANTELOPE COUNTY IN NORTHEAST NEBRASKA
  BOONE COUNTY IN NORTHEAST NEBRASKA

* UNTIL 230 AM CDT

* AT 151 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS WITH DAMAGING WIND FROM 9 MILES NORTHEAST OF
  BRUNSWICK TO 5 MILES SOUTH OF CEDAR RAPIDS...OR FROM 34 MILES
  NORTHWEST OF NORFOLK TO 40 MILES WEST OF COLUMBUS...MOVING EAST AT
  40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  ST. EDWARD AROUND 210 AM CDT

WINDS OF 60 TO 80 MPH ARE POSSIBLE. FOR YOUR PROTECTION...GO TO THE
LOWEST LEVEL OF YOUR HOME OR BUSINESS...AWAY FROM WINDOWS.

LAT...LON 4244 9794 4148 9825 4154 9784 4242 9785

POLLACK

NWS Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 6, 2:30 PM CDT, 11 hours 25 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
230 PM CDT THU SEP 6 2001

FORECAST CHALLENGES -- PRECIPITATION CHANCES

SYNOPSIS -- THE FIRST WAVE ALOFT HAS CLEARED TO THE EAST OF THE CWA
BUT MOISTURE AXIS REMAINS IN PLACE.

FORECAST -- I SEE LITTLE REASON FOR DEVIATING MUCH FROM THE PREVIOUS
TIMING WHICH IS SIMILAR TO THE ETA...I.E. OFK FOR THE FRONT JUST
BEFORE 12Z AND OMA ABOUT 18Z ALTHOUGH THERE SHOULD BE A SECONDARY
SURGE FRIDAY NIGHT AS THE TRAILING WAVE MOVES SOUTH SOUTHEAST.  THIS
IS LIKELY TO BE MORE EFFECTIVE TO THE WEST HOWEVER.  THE ETA DOES
WANT TO DUMP TOO MUCH PRECIP...ESPECIALLY THIS EVENING...BUT THE
PRECIPITABLE WATER WILL BE HIGH ENOUGH THAT MODERATE TO HEAVY RAINS
ARE QUITE POSSIBLE WITH THUNDERSTORMS.

TMPERATURES OVERNIGHT TONIGHT SHOULD BE HELD UP BY HUMIDITY...CLOUDS
AND CONTINUED STIRRING.  ON FRIDAY CLOUDS SHOULD HOLD DOWN
TEMPERATURES SOMEWHAT AHEAD OF THE FRONT...BUT IT WILL BE DISTINCTLY
COOLER BEHIND THE FRONT.

FRIDAY NIGHT THE SECONDARY SURGE WITH THE SECOND WAVE MOVING AROUHD
THE PREDOMINANT UPPER LOW OVER CANADA WILL GENERATE SOME THREAT OF
PRECIP.  AVN MOS MAY BE OVERDONE...ESPECIALLY WITH COUPLING.  WILL
BE DISTINCTLY COOLER ON SATURDAY.

IN THE EXTENDED...BENIGN BUT COOL UNTIL SOME CHANCE OF PRECIPITATION
WITH ANOTHER WAVE WEDNESDAY AND THURSDAY.

.OMA...NONE.
POWERS/NIETFELD

Severe Thunderstorm Warnings in Nebraska, 2001Every severe thunderstorm warning in 2001

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.