Alert archive / Florida / Flash Flood Warnings in 1989

Flash Flood Warning 6, NWS Tallahassee, FL

June 9, 1989Holmes County, Florida

NWS Tallahassee, FL issued this flash flood warning at Jun 9, 1989, 2:21 PM CDT for Holmes County, Florida. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 9, 1989, 2:21 PM CDT (19:21 UTC)
Expired: Jun 9, 1989, 5:30 PM CDT
In force: 3 hr
Issued by: NWS Tallahassee, FL
Area: Whole counties

County Holmes County, FL

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

Apalachicola Mun, FL (KAQQ), launched 12:00Z, 7.4 hours before the alert went out and 149 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2713 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jun 9, 10:50 AM CDT, 3 hours 31 minutes before

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE APALACHICOLA FL
1150 AM EDT FRI JUN 9 1989

TORNADO WATCH 444 IS IN EFFECT FOR GULF AND FRANKLIN COUNTIES UNTIL
100 PM EDT

A FLASH FLOOD WATCH IS IN EFFECT FOR GULF AND FRANKLIN COUNTIES
UNTIL 500 PM EDT...

AT 1131 AM EDT...A LINE OF NUMEROUS THUNDERSTORMS.. SOME WITH VERY
HEAVY RAIN EXTENDED FROM VALDOSTA TO ST. MARKS...AND EXTENDED OFFSHORE
OF APALACHICOLA 65 MILES TO THE SOUTHWEST.

MOVEMENT OF THIS LINE WAS VERY SLOWLY TO THE SOUTHEAST.

OVER THE GULF..ISOLATED SHOWERS... THUNDERSTORMS AND PATCHES OF RAIN
WERE 50 MILES SOUTH AND 100 TO 125 MILES SOUTHWEST OF APALACHICOLA.

THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 30 MILES AN HOUR.

Special weather statement, Jun 9, 11:45 AM CDT, 2 hours 36 minutes before

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Special weather statement, Jun 9, 12:15 PM CDT, 2 hours 6 minutes before

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Special weather statement, Jun 9, 12:38 PM CDT, 1 hour 43 minutes before

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Special weather statement, Jun 9, 12:40 PM CDT, 1 hour 41 minutes before

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Special weather statement, Jun 9, 12:44 PM CDT, 1 hour 37 minutes before

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The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 7:09 PM CDT	Tornado Warning	TAE	Jefferson, Leon	36 min
Jun 8, 8:41 PM CDT	Flash Flood Warning	TAE	Jackson	3 hr
Jun 9, 12:33 AM CDT	Severe Thunderstorm Warning	TAE	Okaloosa	57 min
Jun 9, 8:46 AM CDT	Severe Thunderstorm Warning	TAE	Leon	44 min
Jun 9, 9:06 AM CDT	Tornado Warning	TAE	Jefferson, Leon	54 min
Jun 9, 11:11 AM CDT	Flash Flood Warning	TAE	Holmes	3 hr
Jun 9, 9:16 AM CDT	Tornado Warning	TAE	Thomas	44 min

Nearby

Flash Flood Warnings in Florida, 1989 Every flash flood warning in 1989

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.