Alert archive / Iowa / Flash Flood Watches in 2011
Flash Flood Watch 2, NWS Omaha, NE
NWS Omaha, NE issued this flash flood watch at Jun 5, 2011, 2:14 PM CDT for Fremont County, Iowa. It was in force for 8 days.
The area
The counties it named.
The facts
- Issued
- Jun 5, 2011, 2:14 PM CDT (19:14 UTC)
- Expired
- Jun 13, 2011, 11:17 AM CDT
- In force
- 8 days
- Issued by
- NWS Omaha, NE
- Flood severity
- None
County Fremont County, IA
The radar
The Omaha radar (KOAX), 90 km from the middle of the area, began a volume at 19:12 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
Omaha, NE (KOAX), launched 12:00Z, 7.2 hours before the alert went out and 91 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
- 2556 J/kg
- Mixed-layer CIN
- -178 J/kg
- Mixed-layer LCL
- 910 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.2
The text
As transmitted, in the capitals the NWS used until 2016.
060 WGUS63 KOAX 051914 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 214 PM CDT SUN JUN 5 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... .A FEDERAL LEVEE SOUTHWEST OF HAMBURG HAS WEAKENED OR PARTIALLY FAILED IN AT LEAST TWO PLACES. A SIGNIFICANT FAILURE OF THE LEVEE REMAINS POSSIBLE THROUGH AT LEAST TONIGHT. A FAILURE OF THE LEVEE IN THIS AREA WOULD LIKELY NOT ONLY FLOOD INTERSTATE 29 BUT ALSO PARTS OF HAMBURG AND SURROUNDING RESIDENCES. THIS FLASH FLOOD WATCH REPLACES/EXTENDS THE FLASH FLOOD WARNING ISSUED FOR THE REGION. THE THREAT OF FLOODING REMAINS. IAZ090-060315- /O.NEW.KOAX.FF.A.0002.110605T1914Z-110606T1900Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 214 PM CDT SUN JUN 5 2011 ...FLASH FLOOD WATCH IN EFFECT THROUGH MONDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN OMAHA/VALLEY HAS ISSUED A * FLASH FLOOD WATCH FOR A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA...HAMBURG AREA IN FREMONT COUNTY. * THROUGH MONDAY AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAS WEAKENED IN AT LEAST TWO SPOTS AND THERE REMAINS A DISTINCT POSSIBILITY OF LEVEE FAILURE. THIS FLASH FLOOD WATCH IS AN EXTENSION OF THE FLASH FLOOD WARNING ISSUED EARLIER FOR THE AREA. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ CHERMOK
20 follow-up statements
303 WGUS63 KOAX 060205 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 905 PM CDT SUN JUN 5 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... .A FEDERAL LEVEE SOUTHWEST OF HAMBURG HAS WEAKENED OR PARTIALLY FAILED IN AT LEAST TWO PLACES. A SIGNIFICANT FAILURE OF THE LEVEE REMAINS POSSIBLE THROUGH AT LEAST THE REST OF THE NIGHT. A FAILURE OF THE LEVEE IN THIS AREA WOULD LIKELY NOT ONLY FLOOD INTERSTATE 29 BUT ALSO PARTS OF HAMBURG AND SURROUNDING RESIDENCES. THIS FLASH FLOOD WATCH REPLACES/EXTENDS THE FLASH FLOOD WARNING ISSUED FOR THE REGION. THE THREAT OF FLOODING REMAINS. IAZ090-061015- /O.CON.KOAX.FF.A.0002.000000T0000Z-110606T1900Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 905 PM CDT SUN JUN 5 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAS WEAKENED IN AT LEAST TWO SPOTS AND THERE REMAINS A DISTINCT POSSIBILITY OF LEVEE FAILURE. THIS FLASH FLOOD WATCH IS AN EXTENSION OF THE FLASH FLOOD WARNING ISSUED EARLIER FOR THE AREA. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
341 WGUS63 KOAX 061637 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1137 AM CDT MON JUN 6 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... .A FEDERAL LEVEE SOUTHWEST OF HAMBURG HAS WEAKENED OR PARTIALLY FAILED IN AT LEAST TWO PLACES. A SIGNIFICANT FAILURE OF THE LEVEE REMAINS POSSIBLE TODAY. A FAILURE OF THE LEVEE IN THIS AREA LIKELY WOULD FLOOD NOT ONLY INTERSTATE 29 BUT ALSO PARTS OF HAMBURG AND SURROUNDING RESIDENCES. IAZ090-061900- /O.CON.KOAX.FF.A.0002.000000T0000Z-110606T1900Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1137 AM CDT MON JUN 6 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * UNTIL 2 PM CDT THIS AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAS WEAKENED IN AT LEAST TWO SPOTS AND THERE REMAINS A POSSIBILITY OF LEVEE FAILURE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MAYES
673 WGUS63 KOAX 061812 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 112 PM CDT MON JUN 6 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... .A FEDERAL LEVEE SOUTHWEST OF HAMBURG HAS WEAKENED OR PARTIALLY FAILED IN AT LEAST TWO PLACES. A SIGNIFICANT FAILURE OF THE LEVEE REMAINS POSSIBLE AS RIVER LEVELS CONTINUE TO RISE. A FAILURE OF THE LEVEE IN THIS AREA LIKELY WOULD FLOOD INTERSTATE 29 AS WELL AS PARTS OF HAMBURG AND SURROUNDING RESIDENCES. IAZ090-070215- /O.EXT.KOAX.FF.A.0002.000000T0000Z-110607T2200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 112 PM CDT MON JUN 6 2011 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH TUESDAY AFTERNOON... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH TUESDAY AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAS WEAKENED IN AT LEAST TWO SPOTS AND THERE REMAINS A POSSIBILITY OF LEVEE FAILURE. A MORE SIGNIFICANT LEVEE BREACH REMAINS POSSIBLE AS LONG AS FLOODING CONTINUES. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MAYES
760 WGUS63 KOAX 070133 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 833 PM CDT MON JUN 6 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... .A FEDERAL LEVEE SOUTHWEST OF HAMBURG HAS WEAKENED OR PARTIALLY FAILED IN AT LEAST TWO PLACES. A SIGNIFICANT FAILURE OF THE LEVEE REMAINS POSSIBLE AS RIVER LEVELS CONTINUE TO RISE. A FAILURE OF THE LEVEE IN THIS AREA LIKELY WOULD FLOOD INTERSTATE 29 AS WELL AS PARTS OF HAMBURG AND SURROUNDING RESIDENCES. IAZ090-071700- /O.CON.KOAX.FF.A.0002.000000T0000Z-110607T2200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 833 PM CDT MON JUN 6 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH TUESDAY AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAS WEAKENED IN AT LEAST TWO SPOTS AND THERE REMAINS A POSSIBILITY OF LEVEE FAILURE. A MORE SIGNIFICANT LEVEE BREACH REMAINS POSSIBLE AS LONG AS FLOODING CONTINUES. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
413 WGUS63 KOAX 071242 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 742 AM CDT TUE JUN 7 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-072045- /O.CON.KOAX.FF.A.0002.000000T0000Z-110607T2200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 742 AM CDT TUE JUN 7 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 5 PM CDT THIS AFTERNOON... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * UNTIL 5 PM CDT THIS AFTERNOON * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAD WEAKENED IN AT LEAST TWO SPOTS OVER THE WEEKEND. HOWEVER...THE LEVEE HAS BEEN AT LEAST PARTIALLY REPAIRED...BUT STILL REMAINS VULNERABLE TO FAILURE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
975 WGUS63 KOAX 072132 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 432 PM CDT TUE JUN 7 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-081215- /O.EXT.KOAX.FF.A.0002.000000T0000Z-110609T0600Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 432 PM CDT TUE JUN 7 2011 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH LATE WEDNESDAY NIGHT... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH LATE WEDNESDAY NIGHT * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAD WEAKENED IN AT LEAST TWO SPOTS OVER THE WEEKEND. HOWEVER...THE LEVEE HAS BEEN AT LEAST PARTIALLY REPAIRED...BUT STILL REMAINS VULNERABLE TO FAILURE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. * OVER NEXT FEW DAYS UP TO AN INCH OF RAIN IS EXPECTED ACROSS THE WATCH AREA. THE RESULTING RUNOFF FROM THIS PRECIPITATION WILL INCREASE THE THREAT OF FLOODING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ PEARSON
363 WGUS63 KOAX 080420 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1120 PM CDT TUE JUN 7 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-081630- /O.CON.KOAX.FF.A.0002.000000T0000Z-110609T0600Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1120 PM CDT TUE JUN 7 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE WEDNESDAY NIGHT... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH LATE WEDNESDAY NIGHT * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAD WEAKENED IN AT LEAST TWO SPOTS OVER THE WEEKEND. HOWEVER...THE LEVEE HAS BEEN AT LEAST PARTIALLY REPAIRED...BUT STILL REMAINS VULNERABLE TO FAILURE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ CHERMOK
682 WGUS63 KOAX 081556 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1056 AM CDT WED JUN 8 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-090000- /O.EXT.KOAX.FF.A.0002.000000T0000Z-110610T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1056 AM CDT WED JUN 8 2011 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY MORNING... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH FRIDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAD WEAKENED IN AT LEAST TWO SPOTS THIS PAST WEEKEND. HOWEVER...THE LEVEE HAS BEEN AT LEAST PARTIALLY REPAIRED...BUT STILL REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ PEARSON
990 WGUS63 KOAX 090401 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1101 PM CDT WED JUN 8 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-091600- /O.CON.KOAX.FF.A.0002.000000T0000Z-110610T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1101 PM CDT WED JUN 8 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH FRIDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH FRIDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG HAD WEAKENED IN AT LEAST TWO SPOTS THIS PAST WEEKEND. EVEN THROUGH THE LEVEE HAS BEEN AT LEAST PARTIALLY REPAIRED...IT STILL REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ CHERMOK
762 WGUS63 KOAX 092031 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 331 PM CDT THU JUN 9 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-100445- /O.EXT.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 331 PM CDT THU JUN 9 2011 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ MAYES
864 WGUS63 KOAX 092137 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 437 PM CDT THU JUN 9 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-100545- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 437 PM CDT THU JUN 9 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING COUNTY... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
384 WGUS63 KOAX 100633 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 133 AM CDT FRI JUN 10 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-101445- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 133 AM CDT FRI JUN 10 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ CHERMOK
458 WGUS63 KOAX 100847 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 347 AM CDT FRI JUN 10 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-101700- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 347 AM CDT FRI JUN 10 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT COUNTY. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
899 WGUS63 KOAX 101644 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1144 AM CDT FRI JUN 10 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-111700- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1144 AM CDT FRI JUN 10 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
809 WGUS63 KOAX 110925 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 425 AM CDT SAT JUN 11 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-111730- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 425 AM CDT SAT JUN 11 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
903 WGUS63 KOAX 111536 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1036 AM CDT SAT JUN 11 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-121030- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1036 AM CDT SAT JUN 11 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
809 WGUS63 KOAX 120856 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 356 AM CDT SUN JUN 12 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-121700- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 356 AM CDT SUN JUN 12 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
227 WGUS63 KOAX 121727 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1227 PM CDT SUN JUN 12 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-130130- /O.CON.KOAX.FF.A.0002.000000T0000Z-110613T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1227 PM CDT SUN JUN 12 2011 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING... THE FLASH FLOOD WATCH CONTINUES FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT. * THROUGH MONDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
634 WGUS63 KOAX 130816 FFAOAX URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 316 AM CDT MON JUN 13 2011 ...FLASH FLOODING REMAINS A THREAT ALONG THE MISSOURI RIVER IN SOUTHWEST FREMONT COUNTY IOWA... IAZ090-131630- /O.EXT.KOAX.FF.A.0002.000000T0000Z-110617T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 316 AM CDT MON JUN 13 2011 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY MORNING... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * A PORTION OF SOUTHWEST IOWA...INCLUDING THE FOLLOWING AREA... FREMONT COUNTY. * THROUGH FRIDAY MORNING * THE FEDERAL LEVEE WEST AND SOUTHWEST OF HAMBURG REMAINS VULNERABLE TO FAILURE AS THE MISSOURI RIVER CONTINUES TO RISE. THE LEVEE CONDITION IS EXPECTED TO DETERIORATE AS FLOODING CONTINUES...AND THE FLASH FLOOD WATCH WILL BE IN EFFECT UNTIL FURTHER NOTICE. * IF THE LEVEE EXPERIENCES SIGNIFICANT FAILURE...INTERSTATE 29 WOULD LIKELY BE FLOODED. THE FLOOD WATERS COULD ALSO REACH INTO THE SOUTHERN PART OF HAMBURG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$
120 WGUS63 KOAX 131617 FFAOAX FLOOD WATCH NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1117 AM CDT MON JUN 13 2011 ...THE FLASH FLOOD WATCH HAS BEEN UPGRADED TO A FLASH FLOOD WARNING... IAZ090-131730- /O.CAN.KOAX.FF.A.0002.000000T0000Z-110617T1200Z/ /00000.0.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FREMONT- INCLUDING THE CITY OF...SIDNEY 1117 AM CDT MON JUN 13 2011 ...FLASH FLOOD WATCH NO LONGER IN EFFECT... THE FLASH FLOOD WATCH FOR A PORTION OF SOUTHWEST IOWA HAS BEEN UPGRADED TO A FLASH FLOOD WARNING. OFFICIALS HAVE REPORTED A PORTION OF THE LEVEE NEAR HAMBURG HAS FAILED. PLEASE SEE THE FLASH FLOOD WARNING FOR ADDITIONAL INFORMATION. $$ PEARSON
What forecasters said that day
The local office's own words before this flash flood watch 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 flash flood watch went out at Jun 5, 3:19 AM CDT, 10 hours 55 minutes earlier.
Area forecast discussion, Jun 5, 3:19 AM CDT, 10 hours 55 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 319 AM CDT SUN JUN 5 2011 .DISCUSSION... TEMPERATURES OVER THE NEXT FEW DAYS...THEN RETURNING THUNDERSTORM CHANCES BY MID WEEK...ARE THE MAIN FORECAST CONCERNS. BROAD UPPER RIDGE WAS SPRAWLING WEST FROM THE SOUTHEASTERN CONUS INTO THE SOUTHERN ROCKIES THIS MORNING...WITH TIGHTLY WOUND UPPER LOW OFF THE MIDDLE CALIFORNIA COAST. THAT UPPER LOW IS FORECAST TO GRADUALLY OPEN UP AND SHIFT ITS TROUGH AXIS TOWARD THE ROCKIES THROUGH THE WEEK. PRECIPITATION CHANCES WILL BE HARD TO COME BY FOR THE FIRST PART OF THE WEEK AS UPPER RIDGE AND WARM MID LEVEL TEMPERATURES KEEP STORM TRACK WELL TO OUR NORTH. HOWEVER BY MID WEEK SEVERAL IMPULSES EJECTING FROM WESTERN TROUGH WILL BREAK DOWN WESTERN SIDE OF RIDGE...ALLOWING STORM TRACK TO MOVE CLOSER AND ANOTHER FRONTAL SYSTEM TO SETTLE ACROSS OUR CWA. THIS MORNING A WARM FRONT WAS STALLED JUST NORTH OF THE KANSAS NEBRASKA BORDER. TEMPERATURES SOUTH OF THIS FRONT CLIMBED WELL INTO THE 90S ON SATURDAY...AND THIS AIR SHOULD SURGE NORTH ACROSS EASTERN NEBRASKA AND SOUTHWEST IOWA TODAY. HUMIDITY LEVELS WILL ALSO INCREASE AS UPPER 60S TO NEAR 70 DEW POINTS WERE POOLED ALONG THE FRONT...WITH A SHARP MOISTURE GRADIENT ACROSS OUR CWA RANGING FROM THE 40S IN NORTHEAST NEBRASKA TO THE LOWER 70S IN FAR SOUTHEAST NEBRASKA. MODELS ARE PRETTY SIMILAR IN LIFTING WARM FRONT AT LEAST TO INTERSTATE 80 BY NOON...THEN INTO NORTHEAST NEBRASKA AND WEST CENTRAL IOWA DURING THE AFTERNOON. EXPECTED MOISTURE CONVERGENCE ALONG THE FRONT LOOKS VERY WEAK...SIMILAR TO SATURDAY AFTERNOON WHEN STORMS DECLINED TO FIRE DESPITE SURFACE BASED CAPES OVER 3000 J/KG. SIMILAR LEVELS SHOULD BE REACHED THIS AFTERNOON...BUT WITH WEAK LOW LEVEL FORCING...WILL ONLY INCLUDE A SMALL CHANCE FOR AFTERNOON CONVECTION. WARMER MID LEVEL TEMPERATURES SHOULD KEEP CONVECTION AT BAY MONDAY AND TUESDAY. MOSTLY SUNNY SKIES AND INCREASED MIXING SUGGEST VERY WARM TEMPERATURES ARE ALL BUT ASSURED. FORECAST SOUNDINGS SHOW MIXING DOWN OF 850 AIR WILL YIELD HIGHS RANGING FROM THE UPPER 80S NORTH TO MIDDLE 90S SOUTH TODAY. ON MONDAY SEVERAL LOCATIONS SHOULD MAKE A RUN AT 100 GIVEN A MORE DEEPLY MIXED LOWER ATMOSPHERE. AND EXPECT A SIMILAR SCENARIO ON TUESDAY. AS RIDGE ERODES WITH APPROACH OF UPPER WESTERN TROUGH...A MID LEVEL SHORTWAVE WILL RIDE THROUGH THE NORTHERN PLAINS ON WEDNESDAY. A TRAILING COLD FRONT SHOULD SETTLE INTO OUR CWA WEDNESDAY AFTERNOON. EXPECT CONVECTION TO FIRE NEAR THIS BOUNDARY UNDER COOLER MID LEVEL TEMPERATURES. FRONT WILL NOT MOVE MUCH OVER THE NEXT COUPLE OF DAYS AS UPPER FLOW PARALLELS BOUNDARY...SO THERE WILL BE SEVERAL CHANCES FOR CONVECTION AS UPPER WAVES MOVE OVERHEAD. CURRENT FORECAST HAS THIS LINE OF THINKING COVERED...SO FEW IF ANY CHANGES WERE MADE TO THE FORECAST BEYOND TUESDAY. DERGAN && .AVIATION... TAF SITES KOFK/KOMA/KLNK 06Z TAFS VFR CONDITIONS WILL PREVAIL THRU THE FCST PD. DEE && .OAX WATCHES/WARNINGS/ADVISORIES... NE...NONE. IA...NONE. &&
Hazardous weather outlook, Jun 5, 11:11 AM CDT, 3 hours 3 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1111 AM CDT SUN JUN 5 2011 IAZ056-080-091-NEZ016>018-030>033-042>044-050-051-065-066-078- 088>090-092-060615- SHELBY-MONTGOMERY-PAGE-ANTELOPE-PIERCE-WAYNE-BOONE-MADISON- STANTON-CUMING-PLATTE-COLFAX-DODGE-BUTLER-SAUNDERS-SEWARD- LANCASTER-SALINE-JEFFERSON-GAGE-JOHNSON-PAWNEE- 1111 AM CDT SUN JUN 5 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...THIS AFTERNOON AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE FROM WEDNESDAY AFTERNOON THROUGH SATURDAY AS A FRONTAL SYSTEM MOVES INTO THE REGION THEN STALLS OUT. SEVERE STORMS MAY BE POSSIBLE AT TIMES DURING THE PERIOD...BUT TIMING AND LOCATION WILL HAVE TO BE DETERMINED WITH LATER OUTLOOKS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT. IAZ043-055-069-079-090-NEZ011-012-015-034-045-052-053-067-068-091- 093-060615- MONONA-HARRISON-POTTAWATTAMIE-MILLS-FREMONT-KNOX-CEDAR-THURSTON- BURT-WASHINGTON-DOUGLAS-SARPY-CASS-OTOE-NEMAHA-RICHARDSON- 1111 AM CDT SUN JUN 5 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IOWA...WEST CENTRAL IOWA...EAST CENTRAL NEBRASKA...NORTHEAST NEBRASKA AND SOUTHEAST NEBRASKA. .DAY ONE...THIS AFTERNOON AND TONIGHT MINOR TO MODERATE FLOODING WILL CONTINUE ALONG THE MISSOURI RIVER. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE FROM WEDNESDAY AFTERNOON THROUGH SATURDAY AS A FRONTAL SYSTEM MOVES INTO THE REGION THEN STALLS OUT. SEVERE STORMS MAY BE POSSIBLE AT TIMES DURING THE PERIOD...BUT TIMING AND LOCATION WILL HAVE TO BE DETERMINED WITH LATER OUTLOOKS. FLOODING WILL CONTINUE ALONG THE MISSOURI RIVER...WITH INCREASING RIVER LEVELS EXPECTED THROUGH NEXT WEEK AND BEYOND. RIVER LEVELS MAY BEGIN TO RISE A BIT MORE RAPIDLY AROUND DECATUR BY MONDAY... SPREADING DOWNSTREAM TOWARD OMAHA BY TUESDAY AND WEDNESDAY AS OUTFLOWS FROM GAVINS POINT DAM CONTINUE TO INCREASE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT. CHERMOK
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 9:31 AM CDT | Flash Flood Warning | OAX | Fremont | 5 hr |
Nearby
Flash Flood Watches in Iowa, 2011Every flash flood watch in 2011
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.