Alert archive / Mississippi / Flash Flood Warnings in 1987
Flash Flood Warning 16, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 14, 1987, 5:00 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 1987, 5:00 PM CDT (22:00 UTC)
- Expired
- Aug 14, 1987, 8:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Harrison County, MS, 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, 10.0 hours before the alert went out and 134 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 142152 RRA FFWMOB MSC059-047-150100- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MOBILE AL 500 PM CDT FRI AUG 14 1987 THE NATIONAL WEATHER SERVICE HAS EXTENDED THE FLASH FLOOD WARNING UNTIL 800 PM CDT FOR PEOPLE IN HARRISON AND JACKSON COUNTIES IN MISSISSIPPI. AT 450 PM LIGHT TO MODERATE RAIN CONTINUED THROUGHOUT JACSKON AND HARRISON COUNTIES. HEAVIER RAIN TO THE NORTHWEST WAS MOVING TOWARD THE SOUTHEAST. THIS ADDITIONAL RAIN WILL AGGARAVATE THE FLOODING IN HARRISON AND JACKSON COUNTIES THIS EVENING. RIVERS AND STREAMS IN THE AREA ARE AT BANKFULL OR ABOVE AND MANY ROADS REMAIN FLOODED...ESPECIALLY IN JACKSON COUNTY. UNNECESSARY TRAVEL IS STILL DISC2OURAGED IN THESE COUNTIES.
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
Special weather statement, Aug 14, 1:44 PM CDT, 3 hours 16 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, 2:20 PM CDT | Flash Flood Warning | MOB | 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.