Alert archive / Alabama / Special Weather Statements in 2016

Special Weather Statement, NWS Mobile, AL

November 29, 2016Washington County, Alabama

NWS Mobile, AL issued this special weather statement at Nov 29, 2016, 2:26 AM CST for Washington County, Alabama. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Nov 29, 2016, 2:26 AM CST (08:26 UTC)
Expired: Nov 29, 2016, 3:15 AM CST
In force: 49 min
Issued by: NWS Mobile, AL

County Washington County, AL

The radar

The Mobile radar (KMOB), 82 km from the middle of the area, began a volume at 08:28 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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.4 hours before the alert went out and 216 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: 518 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 650 m above ground
0-6 km bulk shear: 82 kt
0-1 km storm-relative helicity: 510 m²/s²
0-3 km storm-relative helicity: 543 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 6.4

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Nov 28, 11:01 PM CST, 3 hours 25 minutes earlier.

Area forecast discussion, Nov 28, 11:01 PM CST, 3 hours 25 minutes before

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Hazardous weather outlook, Nov 28, 10:10 PM CST, 4 hours 16 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
1010 PM CST MON NOV 28 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-300415-
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-
1010 PM CST MON NOV 28 2016

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

.DAY ONE...REST OF TONIGHT

THE THREAT FOR SEVERE WEATHER HAS BEGUN TO DIMINISH FOR THE
REMAINDER OF TONIGHT AS THE STRONGER DYNAMICS ALOFT CONTINUES TO LIFT
NORTH OF THE FORECAST AREA...COMBINED WITH LIMITED INSTABILITY NEAR
THE SURFACE. AS A RESULT AN ISOLATED STRONG TO POSSIBLE SEVERE
THUNDERSTORM WILL BE POSSIBLE THROUGH ABOUT 3 AM TUESDAY MORNING
TAPERING OFF AS LIGHT RAINSHOWERS LATER IN THE MORNING. ISOLATED
CASES OF DAMAGING STRAIGHT LINE WINDS ALONG WITH SOME SMALL TO MEDIUM
SIZE HAIL WITH BE THE MAIN THREATS WITH THE STRONGER STORMS THROUGH
EARLY TUESDAY MORNING.

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

THERE IS A HIGH SURF ADVISORY ALONG THE GULF BEACHES OF ALABAMA AND
NORTHWEST FLORIDA THROUGH TONIGHT. WAVES AND SURF WILL BUILD TO 5 TO
7 FEET TONIGHT. THIS ROUGH SURF COULD CAUSE MINOR EROSION AND WAVE
RUNUP ALONG SOME OF THE MORE VULNERABLE BEACH AREAS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THE HIGH RISK FOR DANGEROUS RIP CURRENTS ALONG THE GULF BEACHES OF
ALABAMA AND NORTHWEST FLORIDA WILL CONTINUE THROUGH TUESDAY
AFTERNOON.

THE CHANCE OF RAIN WILL DECREASE INTO EARLY TUESDAY...THEN INCREASE
AGAIN TUESDAY NIGHT THOUGH WEDNESDAY AS ANOTHER UPPER SYSTEM PASSES
OVER THE AREA. A SLIGHT RISK OF SEVERE WEATHER IS POSSIBLE GENERALLY
WEST OF I-65 LATE TUESDAY THROUGH WEDNESDAY WITH A MARGINAL RISK
FURTHER EAST. DAMAGING WINDS AGAIN THE PRIMARY THREAT.

.SPOTTER INFORMATION STATEMENT...

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

GMZ630>635-650-655-670-675-300415-
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-
1010 PM CST MON NOV 28 2016

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

.DAY ONE...TONIGHT

HAZARDOUS CONDITIONS FOR SMALL CRAFT CAN BE EXPECTED OVER THE
COASTAL WATERS OF ALABAMA AND NORTHWEST FLORIDA THROUGH TONIGHT DUE
TO A STRONG ONSHORE FLOW.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

HAZARDOUS CONDITIONS FOR SMALL CRAFT WILL CONTINUE OVER COASTAL
WATERS OF ALABAMA AND NORTHWEST FLORIDA THROUGH WEDNESDAY AFTERNOON
DUE TO THE STRONG ONSHORE FLOW THROUGH WEDNESDAY MORNING...FOLLOWED
BY A COLD FRONT MOVING ACROSS THE MARINE AREA WEDNESDAY AFTERNOON.

In the hours before

Special weather statement, Nov 28, 10:21 PM CST, 4 hours 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1021 PM CST MON NOV 28 2016

ALZ051-290445-
CHOCTAW AL-
1021 PM CST MON NOV 28 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHERN CHOCTAW COUNTY UNTIL 1045 PM CST...

AT 1020 PM CST...THE STRONG THUNDERSTORM WAS LOCATED NEAR SNELL...OR
12 MILES NORTHEAST OF QUITMAN...MOVING EAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
BUTLER...LISMAN AND PENNINGTON.

LAT...LON 3231 8800 3230 8800 3228 8801 3228 8802
      3226 8801 3217 8801 3215 8802 3214 8804
      3211 8805 3209 8804 3206 8807 3207 8810
      3206 8812 3205 8812 3204 8846 3225 8843
      3231 8806
TIME...MOT...LOC 0420Z 263DEG 45KT 3214 8854

Special weather statement, Nov 28, 10:49 PM CST, 3 hours 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1049 PM CST MON NOV 28 2016

ALZ051-290530-
CHOCTAW AL-
1049 PM CST MON NOV 28 2016

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHEASTERN CHOCTAW COUNTY UNTIL 1130 PM CST...

AT 1048 PM CST...THE STRONG THUNDERSTORM WAS LOCATED NEAR
PENNINGTON...OR 10 MILES NORTH OF BUTLER...MOVING EAST AT 50 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
PENNINGTON.

LAT...LON 3231 8793 3228 8793 3228 8794 3230 8794
      3230 8800 3228 8801 3228 8802 3227 8802
      3226 8801 3218 8801 3214 8802 3211 8823
      3229 8828 3231 8821
TIME...MOT...LOC 0448Z 256DEG 49KT 3223 8816

Special weather statement, Nov 29, 2:26 AM CST, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 28, 6:53 PM CST	Special Weather Statement	MOB	Choctaw	37 min
Nov 28, 10:21 PM CST	Special Weather Statement	MOB	Choctaw	24 min
Nov 28, 10:49 PM CST	Special Weather Statement	MOB	Choctaw	41 min
Nov 29, 3:03 AM CST	Special Weather Statement	MOB	Monroe	42 min

Nearby

Special Weather Statements in Alabama, 2016 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.