Snow melt on top of saturated or frozen soils caused the North Fork of the Elkhorn River to flood a park and some county roads near Pierce. The river near Pierce reached close to it's 12 foot flood stage.
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The episode as NWS OAX wrote it up.
Snow melt on top of saturated or frozen soils caused the North Fork of the Elkhorn River to flood a park and some county roads near Pierce. The river near Pierce reached close to it's 12 foot flood stage.
The local office's own words before the first event, 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 the first event at Mar 11, 2:10 AM CST, 7 hours 35 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 310 AM CDT SUN MAR 11 2007 .DISCUSSION... WILL MAINLY BE CONCERNED WITH TEMPERATURES OVER THE NEXT FEW DAYS. PREVIOUS FORECAST SHIFT REMOVED CHANCE OF PCPN FOR TODAY. CHANCE IS NOT LOOKING GOOD TODAY...WITH FAIRLY DRY AIR BELOW 700 MB...BUT CHANCES A LITTLE BETTER BY WEDNESDAY NIGHT AND THURSDAY. UPPER AIR CHARTS FROM 00Z SHOWED SOME LOW LEVEL MOISTURE AHEAD OF 850 MB LOW THAT WAS OVER NERN NM LAST EVENING. BEST 12 HOUR HEIGHT FALLS AT 500 MB WERE OVER KABQ. MODEL CONSENSUS WAS THAT A CLOSED LOW WOULD DEVELOP ACROSS NRN NM BY 12Z. THIS IDEA/TREND SEEMS RIGHT ON TRACK ACCORDING TO LATEST WATER VAPOR STLT IMAGERY. RADAR LOOP SHOWED THAT THERE HAD BEEN A DECENT AMOUNT OF CONVECTION FROM CNTRL AND SWRN KS DOWN INTO W TX...AND ALSO AS FAR BACK AS THE VORT MAX OVER SRN CO. BUT NOW A BETTER ORGANIZED MCS WAS OVER TX. DECENT RETURNS WERE LOCATED OVER MUCH OF WRN AND CNTRL KS AT 08Z. MODELS AGREE THAT CLOSED LOW WILL DROP SWD AND BECOME CUTOFF FROM MAIN FLOW AS IT MOVES TOWARD W TX. THIS SYSTEM SHOULD STAY FAR ENOUGH AWAY FROM OUR AREA TO WHERE IT WILL HAVE LITTLE OR NO IMPACT ON OUR WEATHER. CLOSER TO HOME...08Z SURFACE ANALYSIS SHOWED HIGH PRESSURE EXTENDING FROM IL INTO IA. WINDS WERE MAINLY FROM THE E OR SE. AS THE HIGH SLIDES EWD TODAY...EXPECT WINDS TO BECOME S OR SW WITH DOWNSLOPE WINDS AND DECENT MIXING POTENTIAL. HIGHS YESTERDAY TOPPED OUT MAINLY IN THE MID 50S TO LOWER 60S...EXCEPT 52 AT KHNR. BOOSTED HIGHS A COUPLE OF DEGREES FOR TODAY...WITH WARMER AIR AT SPREADING OVER THE NRN PLAINS. LOOKS LIKE 850 MB TEMPERATURES WILL REACH CLOSE TO +8 DEGREES C IN OUR NWRN ZONES. MOST AREAS SHOULD SEE UPPER 50S OR LOWER 60S...BUT ONLY MID 50S AROUND HARLAN WITH STILL SOME IMPACT OF RECENT DEEP SNOWCOVER/WET GROUND. SOUTHWEST WINDS OVERNIGHT SHOULD HELP KEEP TEMPERATURES UP IN THE 30S...AND GIVE US A GOOD HEADSTART FOR MONDAY. BOOSTED HIGHS JUST A FEW DEGREES IN SOME AREAS ON MONDAY. MOST OF ERN NE SHOULD HAVE HIGHS FROM AROUND 70 TO THE LOWER 70S...WITH TEMPERATURES IN SWRN IA NOT THAT FAR BEHIND (65 TO 70). 850 MB TEMPERATURES WARM INTO THE +10 TO +14 DEGREE C RANGE. TUESDAY NIGHT WILL ALSO BE ON THE MILD SIDE...AHEAD OF COLD FRONT. FRONT WILL DROP SWD THROUGH THE AREA TUESDAY. PREVIOUS FORECAST OF THIS LOOKED PRETTY GOOD...BUT RAISED HIGHS A BIT ACROSS OUR SRN ZONES. HIGHS ON WEDNESDAY WILL BE COOLER...BUT STILL ABOVE NORMAL. DID NOT MAKE MANY CHANGES BEYOND WEDNESDAY...AND THE CHANGES MADE BEFORE THAT WERE MINOR. THERE COULD BE SOME LIGHT PCPN ALONG AND BEHIND A COLD FRONT FROM LATE WEDNESDAY INTO EARLY THURSDAY...BUT DOES NOT LOOK LIKE ANYTHING MAJOR RIGHT NOW. COOL HIGH PRESSURE SHOULD BUILD IN BEHIND THE FRONT FOR THURSDAY AND FRIDAY...BUT EXPECT SOUTHERLY WINDS TO RETURN BY FRIDAY NIGHT. && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. && MILLER
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 545 AM CDT SUN MAR 11 2007 IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-120100- ANTELOPE-BOONE-BURT-BUTLER-CASS-CEDAR-COLFAX-CUMING-DODGE-DOUGLAS- FREMONT IA-GAGE-HARRISON IA-JEFFERSON-JOHNSON-KNOX-LANCASTER-MADISON- MILLS IA-MONONA IA-MONTGOMERY IA-NEMAHA-OTOE-PAGE IA-PAWNEE-PIERCE- PLATTE-POTTAWATTAMIE IA-RICHARDSON-SALINE-SARPY-SAUNDERS-SEWARD- SHELBY IA-STANTON-THURSTON-WASHINGTON-WAYNE- 545 AM CDT SUN MAR 11 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF EASTERN NEBRASKA AND SOUTHWEST IOWA. .DAY ONE...TODAY AND TONIGHT RUNOFF FROM SNOWMELT WILL CONTINUE TO CAUSE SOME CREEKS OR STREAMS ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA TO RUN AT HIGHER THAN NORMAL LEVELS TODAY. THE COUNTIES MOST LIKELY TO EXPERIENCE MINOR OVERFLOWS INCLUDE KNOX AND CEDAR. THE WATER FROM THE SMALL STREAMS IN THE AREA WILL GRADUALLY WORK ITS WAY INTO THE LARGER RIVER SYSTEMS...BUT FLOODING OF THE LARGER RIVERS IS NOT EXPECTED. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT...BUT IF YOU OBSERVE FLOODING...PLEASE REPORT IT. MILLER
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Snow melt on top of saturated or frozen soils caused the North Fork of the Elkhorn River to flood a park and some county roads near Pierce.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Nebraska in 2007Every state in 2007This day in weather historyWarnings in Nebraska, March 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 13889.