Alert archive / Mississippi / Flash Flood Warnings in 1987
Flash Flood Warning 15, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 14, 1987, 2:20 PM CDT for Jackson County, Mississippi. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 1987, 2:20 PM CDT (19:20 UTC)
- Expired
- Aug 14, 1987, 5:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Jackson County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Boothville, LA (KBVE), launched 12:00Z, 7.3 hours before the alert went out and 147 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
- 2780 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 141922 FFWMOB MSC059-142200- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 220 PM CDT FRI AUG 14 1987 THE NATIONAL WEATHER SERVICE HAS REISSUED THE FLASH FLOOD WARNING UNTIL 500 PM CDT FOR PEOPLE IN JACKSON COUNTY MISSISSIPPI. AT 218 PM LIGHT TO MODERATE RAIN CONTINUED THROUGHOUT JACSKON COUNTY. WITH REPORTS OF MORE THAN 10 INCHES OF RAIN SINCE 4 AM CDT THIS MORNING EVEN JUST LIGHT TO MODERATE RAIN WILL CONTINUE TO WORSEN THE FLOOD PROBLEMS IN JACKSON COUNTY. ADDITIONALLY MORE HEAVY RAIN MAY MOVE INTO JACKSON COUNTY VERY SOON FROM THE NORTHWEST. DANGEROUS FLOODING IS ALREADY TAKING PLACE IN JACKSON COUNTY. DO NOT DRIVE IN JACKSON COUNTY UN[LESS IT IS AN EMERGENCY. PERSONS IN FLOOD PRONE AREAS SHOULD TAKE ACTION TO PROTECT LIFE AND PROPERTY IMMEDIATELY.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Aug 14, 9:46 AM CDT, 4 hours 34 minutes before
STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 945 AM CDT FRI AUG 14 1987 ...FLOODING IN JACKSON COUNTY MISSISSIPPI... THE JACKSON COUNTY CIVIL DEFENSE DIRECTOR REPORTED A FEW MINUTES AGO THAT RAINFALL AMOUNTS IN JACKSON COUNTY SINCE MIDNIGHT ARE ESTIMATED TO BE 6 INCHES GENERALLY OVER MOST OF THE COUNTY WITH JUST A LITTLE OVER 4 INCHES MEASURED AT OCEAN SPRINGS. ROADS WERE CLOSED IN VAN CLEAVE...AROUND ORANGE GROVE AND THE FRANKLIN CREEK COMMUNITY...ALL IN THE SOUTHEAST PART OF THE COUNTY. ALSO REPORTED WERE JUST A FEW INSTANCES OF WATER RISING INTO HOMES IN SCATTERED LOCATIONS AROUND THE COUNTY.
Local storm report, Aug 14, 10:32 AM CDT, 3 hours 48 minutes before
STORM REPORT NATIONAL WEATHER SERVICE MOBILE AL 1030 AM CDT FRI AUG 14 1987 A MOBILE COUNTY SHERIFFS DEPUTY REPORTED A FEW MINUTES AGO THAT A FOOT OF WATER WAS OVER THE ROAD LEADING TO THE WEST END (OF DAUHPIN ISLAND AND SEVERAL AUTOMOBILES HAVE DROWNED OUT ALONG THE ROAD. TRAFFIC TO THE WEST END OF THE ISLAND IS NOW BEING SEVERELY LIMITED AS HEAVY RAIN IS STILL FALLING OVER THAT PORTION OF THE ISLAND.
Special weather statement, Aug 14, 1:44 PM CDT, 36 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 135 PM CDT FRI AUG 14 1987 A SPECIAL MARINE WARNING IS IN EFFECT UNTIL 215 PM CDT FOR THE COASTAL WATERS OF ESCAMBIA...SANTA ROSA...AND OKALOOSA COUNTIES IN FLORIDA. A SOLID LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WAS PASSING THROUGH THE COASTAL SECTIONS OF THE EXTREME WESTERN TIP OF THE FLORIDA PANHANDLE. THE LINE EXTENDED FROM SOUTHERN BALDWIN COUNTY ALABAMA EASTWARD TO PENSACOLA AND FORT WALTON BEACH. THESE STORMS WILL PRODUCE FREQUENT LIGHTNING STRIKES...GUSTY WINDS...AND VERY HEAVY RAINFALL AS THEY PASS SOUTHWARD THROUGH THESE AREAS. DUE TO THE HEAVY RAINFALL AMOUNTS OF THE PAST DAYS...MUCH OF THE PANHANDLE HAS SATURATED GROUNDS. SOME AREAS CAN EXPECT MINOR FLOODING OF LOW AREAS FROM ACCUMULATED RUNOFF AND ADDITIONAL HEAVY DOWNPOURS. WIDESPREAD LIGHT RAIN WITH SCATTERED STRONG THUNDERSTORMS INCLUDED WAS OVER SOUTHEAST MISSISSIPPI...#SOUTHWEST ALABAMA...THE WESTERN FLORIDA PANHANDLE AND THE GULF WATERS ADJACENT TO ALL OF THESE AREAS UP TO 100 MILES OFFSHORE. MOVEMENT WAS TO THE SOUTHEAST AT 15 TO 20 MPH.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:15 AM CDT | Flash Flood Warning | MOB | Jackson | 3 hr |
| Aug 14, 10:55 AM CDT | Flash Flood Warning | MOB | Jackson | 3 hr |
| Aug 14, 1:07 PM CDT | Flash Flood Warning | MOB | Harrison, Stone | 4 hr |
| Aug 14, 5:00 PM CDT | Flash Flood Warning | MOB | Harrison, Jackson | 3 hr |
Nearby
Flash Flood Warnings in Mississippi, 1987Every flash flood warning in 1987
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.