Alert archive / Florida / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 172, NWS Jacksonville, FL

July 25, 2014Putnam County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jul 25, 2014, 5:11 PM EDT for Putnam County, Florida. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 25, 2014, 5:11 PM EDT (21:11 UTC)
Expired: Jul 25, 2014, 5:35 PM EDT
In force: 24 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon

County Putnam County, FL

The radar

The Jacksonville radar (KJAX), 97 km from the middle of the area, began a volume at 21:11 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.

What forecasters said that day

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

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 25, 9:45 AM EDT, 7 hours 26 minutes earlier.

Area forecast discussion, Jul 25, 9:45 AM EDT, 7 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
945 AM EDT FRI JUL 25 2014

...HOT WITH SCATTERED AFTERNOON AND EVENING THUNDERSTORMS TODAY...

.UPDATE...
SUBTLE CHANGES IN THE ATMOSPHERE ACROSS NE FL/SE GA AS MID LEVEL
RIDGE THAT WAS OVER THE FLORIDA PENINSULA YESTERDAY HAS NOW PUSHED
EAST INTO THE WRN ATLC WHILE MID LEVEL TROF AXIS CONTINUES TO PRESS
SOUTHEAST ACROSS GEORGIA WITH MODERATE AMOUNTS OF LIFT. MAIN CHANGES
SEEN IN THE JAX SOUNDING SINCE YESTERDAY IS A SLIGHT COOLING TO
AROUND -7C AT 500MB WHICH IS MORE TYPICAL OF JULY VALUES AND WILL
ADD TO THE MID LEVEL INSTABILITY AND A SLIGHT INCREASE IN MOISTURE
WITH PRECIP WATER AMOUNTS CLOSER TO 1.80 INCHES. THIS WILL ALLOW FOR
A MORE TYPICAL SCATTERED STORM ACTIVITY PATTERN THIS AFTERNOON WITH
POPS IN THE CLIMO RANGE OF 30-50% IN MOST LOCATIONS. THE STEERING
FLOW OUT OF THE SOUTHWEST AT 15 KNOTS WILL KEEP THE ATLC COAST SEA
BREEZE PINNED NEAR THE COAST AND ALLOW FOR THE GULF COAST SEA BREEZE
TO DOMINATE AS IT MOVES INLAND THIS AFTERNOON WITH STORM MOTION
TOWARDS THE E/NE AT 15-20 MPH. THE BEST CHANCE FOR STRONG STORMS
WILL BE WITH BOUNDARY/OUTFLOW COLLISIONS ESPECIALLY LATE IN THE DAY
AS THE STORMS REACH THE STATIONARY ATLC COAST SBRZ FRONT AND EXPECT
SOME STRONG STORMS WITH GUSTY WINDS TO 50 MPH/FREQUENT LIGHTNING AND
LOCALLY HEAVY RAINFALL. DIVERGENCE ALOFT AROUND 250-300MLB WILL LEAD
TO WEAK SUBSIDENCE IN THAT LEVEL OF THE ATMOSPHERE WHICH SHOULD KEEP
STORMS FROM BECOMING SEVERE WITH A SLIGHT LIMIT ON UPDRAFT STRENGTH.
OTHERWISE AT THE SURFACE MAX TEMPS ARE STILL EXPECTED TO SURGE WELL
INTO THE LOWER TO MIDDLE 90S BEFORE STORMS REACH THEIR HIGHEST
COVERAGE LATE IN THE DAY AND EXPECT HEAT INDICES INTO THE 100-105
RANGE AREA-WIDE. ACTIVITY TO WIND DOWN AFTER SUNSET AND END AROUND
MIDNIGHT WITH FAIR SKIES AND PATCHY LIGHT FOG TOWARDS MORNING. NEAR
CLIMO LOWS IN THE 70S EXPECTED AND THE CONTINUED SOUTHWEST STEERING
FLOW WILL ALLOW FOR STORMS TO DEVELOP IN THE BIG BEND REGION OF THE
GULF COAST WITH A FEW SHOWERS/STORMS SLIPPING INTO THE I-75 CORRIDOR
OF NE FL AROUND SUNRISE.

&&

.AVIATION...
VFR WITH SCATTERED STORMS POSSIBLE THIS AFTERNOON AND WITH STILL A
LACK OF DEFINITE TIMING WILL KEEP IN VCTS WORDING AT ALL TAF SITES
WITH START TIMES GENERALLY IN THE 16-18Z TIME FRAME. ACTIVITY WILL
END AFTER SUNSET WITH VCTS ENDING AROUND 00-02Z. SOME MVFR CIGS AND
VSBYS IN STORMS WILL BE POSSIBLE WITH GUSTY WINDS AND VRB15G25KT MAY
NEED TO BE ADDED AS STORMS BECOME ORGANIZED.

&&

.MARINE...
W/SW FLOW AT 10-15 KNOTS WITH SEAS 2-4 FT WILL BECOME S/SW THIS
AFTERNOON AND EVENING. A FEW STORMS WILL PUSH OFF THE COAST INTO THE
NEARSHORE WATERS LATE IN THE DAY WITH STRONG GUSTY WINDS SO BOATERS
WILL NEED TO USE EXTRA CAUTION.

RIP CURRENTS: LOW RISK.

&&

.PRELIMINARY POINT TEMPS/POPS...
AMG  94  72  95  74 /  50  50  20  20
SSI  91  77  91  77 /  50  50  20  20
JAX  94  73  93  74 /  60  60  30  20
SGJ  90  75  90  75 /  60  60  30  20
GNV  93  72  92  72 /  50  30  30  20
OCF  93  74  93  73 /  50  30  40  20

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...NONE.
&&

HESS/MCALLISTER/WALSH

Hazardous weather outlook, Jul 25, 3:30 PM EDT, 1 hour 41 minutes before

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In the hours before

Special weather statement, Jul 25, 4:08 PM EDT, 1 hour 3 minutes before

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Special weather statement, Jul 25, 4:18 PM EDT, 53 minutes before

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Local storm report, Jul 25, 4:25 PM EDT, 46 minutes before

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Special weather statement, Jul 25, 4:34 PM EDT, 37 minutes before

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Special weather statement, Jul 25, 4:42 PM EDT, 29 minutes before

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Special weather statement, Jul 25, 5:04 PM EDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 12:59 PM EDT	Special Weather Statement	JAX	Marion	46 min
Jul 25, 1:37 PM EDT	Special Weather Statement	JAX	Marion	38 min
Jul 25, 2:13 PM EDT	Special Weather Statement	JAX	Duval	47 min
Jul 25, 2:20 PM EDT	Special Weather Statement	JAX	Flagler	40 min
Jul 25, 2:40 PM EDT	Special Weather Statement	JAX	Clay	35 min
Jul 25, 3:03 PM EDT	Special Weather Statement	JAX	Flagler	42 min
Jul 25, 3:12 PM EDT	Special Weather Statement	JAX	Clay	48 min
Jul 25, 3:13 PM EDT	Special Weather Statement	JAX	Duval	47 min
Jul 25, 3:22 PM EDT	Areal Flood Advisory	JAX	Flagler	83 min
Jul 25, 3:24 PM EDT	Special Marine Warning	JAX		96 min
Jul 25, 3:40 PM EDT	Special Marine Warning	JAX		2 hr
Jul 25, 3:46 PM EDT	Special Weather Statement	JAX	Saint Johns	29 min
Jul 25, 3:47 PM EDT	Special Weather Statement	JAX	Marion	28 min
Jul 25, 3:50 PM EDT	Special Weather Statement	JAX	Flagler	25 min
Jul 25, 3:54 PM EDT	Areal Flood Advisory	JAX	Marion	96 min
Jul 25, 4:08 PM EDT	Special Weather Statement	JAX	Saint Johns	52 min
Jul 25, 4:18 PM EDT	Special Weather Statement	JAX	Marion	42 min
Jul 25, 4:25 PM EDT	Areal Flood Advisory	JAX	Putnam, Saint Johns	95 min
Jul 25, 4:34 PM EDT	Special Weather Statement	JAX	Flagler	26 min
Jul 25, 4:42 PM EDT	Special Weather Statement	JAX	Putnam	48 min
Jul 25, 5:04 PM EDT	Special Weather Statement	JAX	Putnam	41 min
Jul 25, 5:49 PM EDT	Special Weather Statement	JAX	Flagler	26 min
Jul 25, 5:51 PM EDT	Special Weather Statement	JAX	Duval	39 min
Jul 25, 6:04 PM EDT	Special Weather Statement	JAX	Marion	41 min
Jul 25, 6:10 PM EDT	Special Weather Statement	JAX	Ware	50 min
Jul 25, 6:46 PM EDT	Special Weather Statement	JAX	Charlton	44 min
Jul 25, 7:10 PM EDT	Special Weather Statement	JAX	Brantley	50 min

Nearby

Severe Thunderstorm Warnings in Florida, 2014 Every severe thunderstorm warning in 2014

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.