Alert archive / Florida / River Flood Warnings in 2016

River Flood Warning 51, NWS Mobile, AL

April 12, 2016Okaloosa County, Florida

NWS Mobile, AL issued this river flood warning at Apr 12, 2016, 8:43 PM CDT for Okaloosa County, Florida. It took effect at Apr 15, 2016, 10:00 AM CDT. It was in force for 45 hr.

The area

The outline as issued.

The facts

Issued
Apr 12, 2016, 8:43 PM CDT (01:43 UTC)
In effect from
Apr 15, 2016, 10:00 AM CDT
Expired
Apr 17, 2016, 7:00 AM CDT
In force
45 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
Minor

County Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 63 km from the middle of the area, began a volume at 01:43 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 Shoal River near Crestview (CRVF1). The gauge peaked at 7.13 ft at Apr 16, 2016, 1:00 AM CDT.

actionminormoderate68101204/1304/1404/1504/1604/1704/18
Action stage
6 ft
Minor stage
8 ft
Moderate stage
12 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02369000, 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.

381 
WGUS44 KMOB 130143
FLWMOB
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING 
NATIONAL WEATHER SERVICE MOBILE, AL
843 PM CDT TUE APR 12 2016



...The National Weather Service in Mobile has issued a flood warning for the 
following river in Florida... 

  Shoal River Near Crestview affecting Okaloosa County.

.Heavy rainfall is forecast to occur over the next 24 to 48 hours. As a result...river
levels are forecast to rise and a flood warning is now in effect.  It is 
emphasized that the following forecast is based on the expected rainfall during 
the next 24 to 48 hours.  If less rainfall occurs...it may be necessary to revise this
stage forecast downward.

SAFETY MESSAGE... 
Stay tuned to developments by listening to NOAA Weather radio.

&&

FLC091-140143-
/O.NEW.KMOB.FL.W.0051.160415T1500Z-160417T1200Z/
/CRVF1.1.ER.160415T1500Z.160416T0600Z.160417T0600Z.NO/
843 PM CDT TUE APR 12 2016

The National Weather Service in Mobile has issued a 

* Flood Warning for 
  The Shoal River Near Crestview
* From Friday morning until Sunday morning
* At 8PM Tuesday the stage was...6.1 feet. 
* Minor flooding is forecast 
* Flood stage is 8 feet. 
* Forecast to rise above flood stage by late Friday morning and continue to rise
  near 8.6 feet by early Saturday morning. The river will fall below flood stage
  by early Sunday Morning.
* At 8 feet...minor flooding of low lying areas will occur.

&&

LAT...LON 3078 8650 3078 8649 3069 8653 3069 8663
 3070 8663 3070 8655                  

$$
2 follow-up statements
101 
WGUS84 KMOB 131616
FLSMOB
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOBILE, AL
1116 AM CDT WED APR 13 2016
 

...The flood warning continues for the following rivers in Florida...
 
  Shoal River Near Crestview affecting Okaloosa County. 

.Recent heavy rains have caused significant rises along the river. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE... 
Stay tuned to developments by listening to NOAA Weather radio.

&&

FLC091-141616-
/O.EXT.KMOB.FL.W.0051.160416T1200Z-160418T0600Z/
/CRVF1.1.ER.160416T1200Z.160416T1800Z.160418T0000Z.NO/
1116 AM CDT WED APR 13 2016

...Flood Warning extended until late Sunday night...The Flood Warning continues 
for
  the Shoal River Near Crestview
* From Saturday morning until late Sunday night.
* At 10AM Wednesday the stage was 6.2 feet. 
* No flooding is occurring and Minor flooding is forecast. 
* Flood stage is 8.0 feet.
* Forecast to rise above flood stage by Saturday morning and continue to rise 
  near 8.1 feet by Saturday early afternoon. The river will fall below flood 
  stage by early monday morning.
At 8.0 feet, Minor flooding of low lying areas.  

&&

LAT...LON 3078 8650 3078 8649 3069 8653 3069 8663
 3070 8663 3070 8655                  

$$
789 
WGUS84 KMOB 140207
FLSMOB
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOBILE, AL
907 PM CDT WED APR 13 2016
 

...The flood warning is cancelled for the following river in Florida...
 
  Shoal River Near Crestview affecting Okaloosa County.

SAFETY MESSAGE... 
Stay tuned to developments by listening to NOAA Weather radio.

&&

FLC091-140237-
/O.CAN.KMOB.FL.W.0051.000000T0000Z-160418T0600Z/
/CRVF1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
907 PM CDT WED APR 13 2016

The Flood Warning is cancelled for
  The Shoal River Near Crestview
* At 8 PM Wednesday the stage was 6.4 feet. 
* Flood stage is 8 feet.

&&

LAT...LON 3078 8650 3078 8649 3069 8653 3069 8663
 3070 8663 3070 8655                  

$$

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this river flood warning went out at Apr 12, 7:28 PM CDT, 1 hour 15 minutes earlier.

Area forecast discussion, Apr 12, 7:28 PM CDT, 1 hour 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOBILE AL
728 PM CDT TUE APR 12 2016

.DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW.

&&

.AVIATION...
06Z ISSUANCE...GENERALLY VFR CONDITIONS PERSIST OVER THE FLYING AREA
UNDER A BROAD SHIELD OF 3,000 FT TO 5,000 FT CEILINGS ADVECTING WEST
TO EAST ALONG THE LARGE SCALE MOIST, WESTERLY FLOW ALOFT. CEILINGS
UPSTREAM HAVE ALREADY FALLEN TO MVFR AND ARE CEILINGS SHOULD LOWER
AS WELL OVER THE NEXT COUPLE HOURS. CEILINGS WILL CONTINUE TO FALL
OVERNIGHT TO IFR AND SHOWERS AND THUNDERSTORMS ARE EXPECTED TO
DEVELOP LATE MORNING TO AFTERNOON TIME-FRAME WITH CONDITIONS
REMAINING GENERALLY IN THE LIFR AND IFR CATEGORY THROUGHOUT THE DAY.
/08

&&

.PREV DISCUSSION... /ISSUED 341 PM CDT TUE APR 12 2016/

..HIGH RAIN CHANCES EXPECTED WEDNESDAY AND THURSDAY WITH PERIODS
OF HEAVY RAIN LIKELY...

NEAR TERM /NOW THROUGH WEDNESDAY/...A WEAK UPPER LEVEL RIDGE OVER
THE GULF OF MEXICO AND THE DEEP SOUTH WILL SHIFT EAST OF THE REGION
LATE TONIGHT AND WEDNESDAY. A DEEP WESTERLY WIND FLOW ALOFT WILL
TURN TO THE WEST-SOUTHWEST AS AN UPPER LOW AND ASSOCIATED TROUGH
ADVANCE EAST OVER THE SOUTHERN PLAINS. THIS WILL ALLOW PRECIPITABLE
WATER VALUES TO INCREASE BACK TO BETWEEN 1.4 TO 1.7 INCHES BY LATE
WEDNESDAY AFTERNOON. UPPER LEVEL SHORTWAVES AND IMPULSES MOVING
THROUGH THE FLOW ALOFT WILL TRIGGER SHOWERS AND THUNDERSTORMS ACROSS
THE ENTIRE FORECAST AREA THROUGHOUT THE DAY WEDNESDAY...WHILE AN
INVERTED SURFACE TROUGH APPROACHES FROM THE WEST. THE RAIN WILL BE
HEAVY AT TIMES...MAINLY SOUTH OF A LINE FROM WAYNESBORO MISSISSIPPI
TO ANDALUSIA ALABAMA WHERE WIDESPREAD RAINFALL AMOUNTS OF ONE TO TWO
INCHES WILL BE LIKELY. LOCALIZED HIGHER AMOUNTS UP TO THREE INCHES
WILL BE POSSIBLE ALONG THE COAST.

LOW TEMPERATURES TONIGHT WILL RANGE FROM 55 TO 60 DEGREES ALONG AND
NORTH OF A LINE FROM WIGGINS MISSISSIPPI TO CRESTVIEW FLORIDA...AND
FROM 60 TO 65 DEGREES TO THE SOUTH OF THIS LINE. HIGH TEMPERATURES
WEDNESDAY WILL RANGE FROM 70 TO 75 DEGREES. /22

SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/...SOUTHERN STREAM
MID LEVEL IMPULSE OVER TEXAS IS FORECAST TO TRANSLATE EASTWARD INTO
THE LOWER MISSISSIPPI RIVER DELTA REGION DURING THE DAY THURSDAY. THE
HIGH LEVEL GEO-POTENTIAL HEIGHT FIELD BECOMES DIFFLUENT AS THIS
FEATURE APPROACHES. CONSIDERING THIS AND A MODEST UPPER LEVEL JET
STREAK (70-90 KNOTS) MOVING EASTWARD ACROSS THE CENTRAL GULF...DEEP
LAYER ASCENT IS SUPPORTED WITHIN A MOIST COLUMN OF AIR (PWATS
RANGING FROM 1.5 TO 1.7 INCHES) OVER THE LOCAL AREA ON THU. THESE
VALUES LIE BETWEEN 1 AND 2 STANDARD DEVIATIONS ABOVE THE MEAN. AT THE
SURFACE...A WEAK SURFACE TROF WILL BE ALIGNED ACROSS THE CENTRAL
GULF COAST. THE EASTWARD PASSAGE OF H50 MID LEVEL HEIGHT FALLS (30
METERS) MAY HELP TO DEVELOP A WAVE OF LOW PRESSURE ALONG THE COASTAL
BOUNDARY ANYWHERE FROM OFF THE SOUTHWEST COAST OF LOUISIANA TO
SOUTHERN MISSISSIPPI. GIVEN THE MOISTURE IN PLACE...THE SURFACE
TROF/WAVE OF LOW PRESSURE...AND LARGER SCALE DYNAMICS...WILL KEEP THE
RAINFALL PROBABILITIES ON THE HIGH SIDE FOR THURSDAY...SIMILAR TO
THAT ON WEDNESDAY. RAINS COULD BECOME LOCALLY HEAVY ON THURSDAY...WITH
THE HEAVIER AMOUNTS ALONG AND SOUTH OF A US HIGHWAY 84 LINE WHERE
FORECASTERS MAINTAIN AN ELEVATED FLOOD THREAT. LATEST STORM TOTAL
RAINFALL AMOUNTS ENDING THURSDAY EVENING COULD ADD UP TO BETWEEN 2 TO
4 INCHES...WITH A FEW AREAS POSSIBLY SEEING THESE AMOUNTS DOUBLED AS
WEAK LOW LEVEL FLOW RESULTS IN SLOW STORMS MOTIONS. GIVEN THE WEAK
WIND PROFILES...THE CHANCES OF SEVERE WEATHER APPEAR TOO LOW TO
MENTION IN THE FORECAST. FORECAST AREA TO REMAIN ON THE SOUTHERN
PERIPHERY OF AN UPPER LEVEL LOW OVER THE TENNESSEE RIVER VALLEY. OUT
OF THE RESPECT FOR THE POTENTIAL OF MID LEVEL IMPULSES PASSING EAST
ACROSS THE LOCAL AREA THURSDAY NIGHT INTO FRIDAY...WILL MAINTAIN A
CHANCE OF SHOWERS/FEW STORMS. IT APPEARS THOUGH THE THREAT OF HEAVY
RAINS WILL END BY THURSDAY NIGHT. OVERNIGHT LOWS AND DAYTIME
HIGHS...MILD. /10

LONG TERM /SATURDAY THROUGH TUESDAY/...LARGE AREA OF SURFACE HIGH
PRESSURE DOMINATES FROM THE GREAT LAKES TO FLORIDA OVER THE WEEKEND
AND LOOKS TO CONTINUE INTO THE FIRST OF NEXT WEEK. MOVING INTO A NICE
SPRING WEATHER PATTERN WITH NO RAIN IN THE FORECAST SATURDAY THROUGH
MONDAY. THE NEXT CHANCE OF SHOWERS AND STORMS ENTERS THE FORECAST BY
TUESDAY. DAYTIME HIGHS IN THE LOWER TO MID 70S SATURDAY...WARM TO
NEAR 80 MOST AREAS FOR MONDAY AND TUESDAY. OVERNIGHT LOWS 54 TO 59
INTERIOR TO LOWER 60S ALONG THE BEACHES. /10

MARINE...A WEAK FRONTAL BOUNDARY WILL CONTINUE TO MOVE SOUTH OVER
THE NORTHERN GULF WATERS THROUGH TONIGHT AND THEN STALL AND
DISSIPATE. SHOWERS AND THUNDERSTORMS CAN BE EXPECTED AGAIN ON
WEDNESDAY AND THURSDAY AS AN INVERTED SURFACE TROUGH APPROACHES FROM
THE WEST. A MODERATE TO STRONG EASTERLY FLOW WILL DEVELOP THURSDAY
AND CONTINUE THROUGH THE WEEKEND AS STRONG HIGH PRESSURE BUILDS OVER
THE SOUTHEAST STATES. /22

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
FL...NONE.
MS...NONE.
GM...NONE.
&&

THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT:
HTTP://WEATHER.GOV/MOB
Hazardous weather outlook, Apr 12, 5:47 AM CDT, 14 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
547 AM CDT TUE APR 12 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-131100-
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-MOBILE CENTRAL-
BALDWIN CENTRAL-MOBILE COASTAL-BALDWIN COASTAL-ESCAMBIA INLAND-
ESCAMBIA COASTAL-SANTA ROSA INLAND-SANTA ROSA COASTAL-
OKALOOSA INLAND-OKALOOSA COASTAL-WAYNE-PERRY-GREENE-STONE-GEORGE-
547 AM CDT TUE APR 12 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ALABAMA...SOUTHWEST ALABAMA...NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE
THROUGH THIS EARLY THIS AFTERNOON...THEN REFORM OVERNIGHT AND EARLY
WEDNESDAY MORNING. GUSTY WINDS AND HAIL WILL BE MAIN THREATS THROUGH
TONIGHT.

SOME MINOR FLOODING WILL BE POSSIBLE THROUGH TONIGHT.

THERE IS A MODERATE RISK FOR RIP CURRENTS ALONG THE GULF BEACHES OF
ALABAMA AND NORTHWEST FLORIDA THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE
THROUGH EARLY FRIDAY. GUSTY WINDS AND HAIL WILL BE MAIN THREATS
THROUGH EARLY FRIDAY.

SOME MINOR FLOODING WILL BE POSSIBLE THROUGH EARLY FRIDAY.

THERE IS A MODERATE RISK FOR RIP CURRENTS ALONG THE GULF BEACHES OF
ALABAMA AND NORTHWEST FLORIDA THROUGH WEDNESDAY AND MAY BE ELEVATED
TO A HIGH RISK LATE IN THE WEEK.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF SKYWARN SEVERE STORM SPOTTER NETWORKS IS NOT
EXPECTED THROUGH MONDAY.

GMZ630>635-650-655-670-675-131100-
NORTHERN MOBILE BAY-SOUTHERN MOBILE BAY-MISSISSIPPI SOUND-
PERDIDO BAY-PENSACOLA BAY SYSTEM-CHOCTAWHATCHEE BAY-
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM-
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM-
WATERS FROM PENSACOLA FL TO PASCAGOULA MS FROM 20 TO 60 NM-
WATERS FROM DESTIN TO PENSACOLA FL FROM 20 TO 60 NM-
547 AM CDT TUE APR 12 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE COASTAL
WATERS OF ALABAMA AND NORTHWEST FLORIDA AND THE COASTAL WATERS OF
ALABAMA AND NORTHWEST FLORIDA.

.DAY ONE...TODAY AND TONIGHT

A FEW STRONG THUNDERSTORMS WITH GUSTY WINDS AND FREQUENT LIGHTNING WILL
BE POSSIBLE THROUGH TONIGHT.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A FEW STRONG THUNDERSTORMS WITH GUSTY WINDS AND FREQUENT LIGHTNING
WILL BE POSSIBLE THROUGH EARLY FRIDAY.

HAZARDOUS CONDITIONS FOR SMALL CRAFT WILL BE POSSIBLE LATE IN THE
WEEK CONTINUING INTO THE FIRST OF THE WEEKEND.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 8:51 PM CDTRiver Flood WarningMOBEscambia3 days
Apr 13, 5:00 AM CDTFlash Flood WatchMOBEscambia, Okaloosa, Santa Rosa11 hr

Nearby

River Flood Warnings in Florida, 2016Every river flood warning in 2016

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.