Alert archive / Iowa / River Flood Warnings in 2008

River Flood Warning 21, NWS Omaha, NE

May 30, 2008Fremont County, Iowa

NWS Omaha, NE issued this river flood warning at May 30, 2008, 9:18 AM CDT for Fremont County, Iowa. It took effect at May 30, 2008, 7:21 PM CDT. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: May 30, 2008, 9:18 AM CDT (14:18 UTC)
In effect from: May 30, 2008, 7:21 PM CDT
Expired: May 31, 2008, 5:10 PM CDT
In force: 22 hr
Issued by: NWS Omaha, NE
Flood severity: Moderate

County Fremont County, IA

The radar

The Omaha radar (KOAX), 90 km from the middle of the area, began a volume at 14:20 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 river

Written for the forecast point Nishnabotna River above Hamburg (HMBI4). The gauge peaked at 23.62 ft at May 31, 2008, 7:00 AM CDT.

Action stage: 23 ft
Minor stage: 25 ft
Moderate stage: 27.5 ft
Major stage: 33 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06810000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS43 KOAX 301418
FLWOAX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
918 AM CDT FRI MAY 30 2008

...THE NATIONAL WEATHER SERVICE IN OMAHA NEBRASKA HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING RIVERS IN IOWA... 

  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY
IAC071-310218-
/O.NEW.KOAX.FL.W.0021.080531T0638Z-080603T0430Z/
/HMBI4.2.ER.080531T0638Z.080601T0000Z.080602T1030Z.NO/
918 AM CDT FRI MAY 30 2008

THE NATIONAL WEATHER SERVICE IN OMAHA NEBRASKA HAS ISSUED A 

* FLOOD WARNING FOR 
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* FROM LATE TONIGHT TO MONDAY EVENING...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT 8:15 AM FRIDAY THE STAGE WAS 14.4 FEET. 
* MODERATE FLOODING IS FORECAST. 
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY AFTER MIDNIGHT TOMORROW AND 
  CONTINUE TO RISE TO NEAR 27.5 FEET BY TOMORROW EVENING. THE RIVER 
  WILL FALL BELOW FLOOD STAGE BY MONDAY MORNING.
* AT 27.0 FEET...STATE HIGHWAY 275 SOUTH OF THE GAGE MAY BE
  THREATENED IN SEVERAL SPOTS.

$$

5 follow-up statements

000 
WGUS83 KOAX 301937
FLSOAX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
237 PM CDT FRI MAY 30 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...
 
  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY 
IAC071-310737-
/O.EXT.KOAX.FL.W.0021.080531T0021Z-080603T0900Z/
/HMBI4.2.ER.080531T0021Z.080531T1800Z.080602T1500Z.NO/
237 PM CDT FRI MAY 30 2008

...FLOOD WARNING EXTENDED UNTIL LATE MONDAY NIGHT...THE FLOOD WARNING
CONTINUES FOR
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* FROM THIS EVENING TO LATE MONDAY NIGHT...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT 2:15 PM FRIDAY THE STAGE WAS 19.4 FEET. 
* MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO 
  RISE TO NEAR 28.2 FEET BY TOMORROW EARLY AFTERNOON. THE RIVER WILL 
  FALL BELOW FLOOD STAGE BY LATE MONDAY MORNING.
* AT 27.0 FEET...STATE HIGHWAY 275 SOUTH OF THE GAGE MAY BE
  THREATENED IN SEVERAL SPOTS.

$$

000 
WGUS83 KOAX 310026
FLSOAX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
726 PM CDT FRI MAY 30 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...
 
  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY 
IAC071-311226-
/O.EXT.KOAX.FL.W.0021.000000T0000Z-080603T0600Z/
/HMBI4.2.ER.080531T0220Z.080601T0000Z.080602T1200Z.NO/
726 PM CDT FRI MAY 30 2008

THE FLOOD WARNING CONTINUES FOR
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* UNTIL LATE MONDAY NIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  7:15 PM FRIDAY THE STAGE WAS 22.0 FEET. 
* MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY TONIGHT AND CONTINUE TO RISE 
  TO NEAR 27.3 FEET BY TOMORROW EVENING. THE RIVER WILL FALL BELOW 
  FLOOD STAGE BY MONDAY MORNING.
* AT 27.0 FEET...STATE HIGHWAY 275 SOUTH OF THE GAGE MAY BE 
THREATENED IN SEVERAL SPOTS.

$$

FOBERT

000 
WGUS83 KOAX 310813
FLSOAX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
313 AM CDT SAT MAY 31 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...
 
  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY 
IAC071-312013-
/O.EXT.KOAX.FL.W.0021.000000T0000Z-080602T1434Z/
/HMBI4.1.ER.080531T0409Z.080601T0000Z.080601T2034Z.NO/
313 AM CDT SAT MAY 31 2008

THE FLOOD WARNING CONTINUES FOR
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* UNTIL MONDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 3:00 AM SATURDAY THE STAGE WAS 23.5 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 24.5 FEET BY THIS
  EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE TOMORROW AFTERNOON.
* AT 25.0 FEET...MANY LOCAL FARM LEVEES ARE OVERTOPPED WITH FLOOD
  WATERS.

$$

000 
WGUS83 KOAX 311606
FLSOAX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1106 AM CDT SAT MAY 31 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN IOWA...
 
  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY 
IAC071-010406-
/O.EXT.KOAX.FL.W.0021.000000T0000Z-080601T1525Z/
/HMBI4.1.ER.080531T0409Z.080531T1215Z.080531T2125Z.NO/
1106 AM CDT SAT MAY 31 2008

THE FLOOD WARNING CONTINUES FOR
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* UNTIL SUNDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:45 AM SATURDAY THE STAGE WAS 23.5 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 23.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  LATE THIS AFTERNOON.
* AT 22.0 FEET...MINOR RURAL OVERFLOWS BEGIN WITHIN THE CITY LIMITS.

$$

000 
WGUS83 KOAX 312210
FLSOAX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
510 PM CDT SAT MAY 31 2008

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN IOWA...
 
  NISHNABOTNA RIVER NEAR HAMBURG AFFECTING FREMONT COUNTY
IAC071-312240-
/O.CAN.KOAX.FL.W.0021.000000T0000Z-080601T1845Z/
/HMBI4.1.ER.080531T0409Z.080531T1215Z.080601T0045Z.NO/
510 PM CDT SAT MAY 31 2008

THE FLOOD WARNING IS CANCELLED FOR
  THE NISHNABOTNA RIVER NEAR HAMBURG.
* AT  5:00 PM SATURDAY THE STAGE WAS 22.9 FEET. 
* FLOOD STAGE IS 23.0 FEET. 
* AT 22.0 FEET...MINOR RURAL OVERFLOWS BEGIN WITHIN THE CITY LIMITS.

$$

FOBERT

The office that day

Everything else NWS Omaha, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 7:13 PM CDT	Tornado Warning	OAX	Monona	32 min
May 29, 7:46 PM CDT	Tornado Warning	OAX	Monona	29 min
May 29, 7:57 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie	33 min
May 29, 8:03 PM CDT	Tornado Warning	OAX	Harrison, Shelby	27 min
May 29, 8:22 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona, Pottawattamie, Shelby	23 min
May 29, 8:27 PM CDT	Flash Flood Warning	OAX	Monona	5 hr
May 29, 8:44 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Pottawattamie, Shelby	31 min
May 29, 9:14 PM CDT	Severe Thunderstorm Warning	OAX	Shelby	31 min
May 29, 10:11 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona	49 min
May 29, 10:51 PM CDT	Severe Thunderstorm Warning	OAX	Harrison, Monona, Shelby	39 min
May 30, 12:29 AM CDT	Tornado Warning	OAX	Fremont, Page	31 min
May 30, 12:51 AM CDT	Severe Thunderstorm Warning	OAX	Montgomery, Page	39 min
May 30, 12:59 AM CDT	Tornado Warning	OAX	Montgomery	20 min
May 30, 8:30 AM CDT	River Flood Warning	OAX	Harrison	5 hr
May 30, 9:00 AM CDT	River Flood Warning	OAX	Fremont	4 days
May 30, 9:27 AM CDT	River Flood Warning	OAX	Fremont	10 hr

Nearby

River Flood Warnings in Iowa, 2008 Every river flood warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.