Alert archive / Alabama / Special Weather Statements in 2020

Special Weather Statement, NWS Mobile, AL

June 23, 2020Clarke County, Conecuh County, Monroe County, Alabama

NWS Mobile, AL issued this special weather statement at Jun 23, 2020, 4:21 PM CDT for Clarke County, Conecuh County, Monroe County, Alabama. It was in force for 39 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: Jun 23, 2020, 4:21 PM CDT (21:21 UTC)
Expired: Jun 23, 2020, 5:00 PM CDT
In force: 39 min
Issued by: NWS Mobile, AL

Counties Clarke County, AL, Conecuh County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 112 km from the middle of the area, began a volume at 21:24 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

Birmingham, AL (KBMX), launched 12:00Z, 9.4 hours before the alert went out and 206 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: 641 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 123 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.6

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 Jun 23, 3:24 PM CDT, 57 minutes earlier.

Area forecast discussion, Jun 23, 3:24 PM CDT, 57 minutes before

Area Forecast Discussion
National Weather Service Mobile AL
324 PM CDT Tue Jun 23 2020

.NEAR TERM UPDATE /Now Through Wednesday/...An upper trof over
the eastern states broadens somewhat through Wednesday but
otherwise remains in place. An associated surface low is currently
located over the Great Lakes with a cold front which extends from
near the Ohio River valley to Arkansas. As the surface low moves
further off to the north, the trailing frontal boundary dips into
northern Alabama/Mississippi on Wednesday and stall. A surface
ridge remains in place over the northern Gulf and maintains a
southwesterly flow over the forecast area. This maintains a moist
pattern over the region through Wednesday with precipitable water
values near 2.0 inches. A modest series of shortwaves move across
the area within the base of the upper trof pattern today followed
by a stronger series of shortwaves on Wednesday. This trend and
the moist pattern will support likely pops for much of the area
this afternoon followed by mainly categorical pops on Wednesday.
MLCAPE values of 1500-2250 J/kg are expected today with values
ranging from 1000-1500 J/kg on Wednesday, moderated by increased
cloud cover and somewhat lower afternoon highs. Despite the moist
pattern, the 12Z sounding at JAN indicated abundant drier air
above 700 mb, also indicated in the LZK sounding above 600 mb.
It's difficult to determine how expansive this drier air region
is, but following with the RAP guidance the drier air likely
shifts into the forecast area today albeit with some modification
due to entrainment from convection. RAP DCAPE values of 1000-1500
J/kg hence look possible and expect the stronger storms to be
capable of strong to potentially marginally severe wind gusts this
afternoon. On Wednesday, there is the potential for another area
of dry mid level air to be advected from the northern Gulf into
the area, mainly the southern half, during the afternoon. This
would maintain the potential for strong to possibly marginally
severe downdrafts again on Wednesday, tempered somewhat by the
somewhat lower instability. Locally heavy rainfall will also be
possible with the stronger storms each day which could lead to
nuisance type flooding issues. Lows tonight range from around 70
well inland to the mid 70s at the coast. Highs on Wednesday will
be mostly in the mid to upper 80s. A moderate risk of rip currents
is expected through Wednesday. /29

&&

.SHORT TERM /Wednesday night Through Friday night/...Upper trough
over the eastern states moves little through Thursday before
finally pushing east off the Atlantic coast by Friday night. As a
result, we continue to see unsettled weather under its southern
periphery Thursday with scattered showers and thunderstorms
developing during daytime hours. At the surface, high pressure
continues to ridge from the western Atlantic into the southeastern
states, maintaining a southerly flow across the region. With
moderate instability and ample moisture available, could see some
gusty winds with stronger storms due to precip loading in
downdrafts. This would be in addition to the typical summertime
threats of frequent lightning and heavy downpours. Rain chances
drop off Thursday night as weak ridging builds over the area, with
only a slight chance for a few isolated storms over southeast
Mississippi on Friday. Low temps range from upper 60s to low 70s
inland and mid to upper 70s along the coast. Highs on Thursday
remain in the mid 80s where coverage of storms will be greatest,
and upper 80s to low 90s elsewhere. Temps on Friday will be warmer
due to the more sparse coverage in clouds and storms, with most
areas seeing low to mid 90s. Some locations could see heat indices
reaching the 100 to 103 degree range on Friday. /49

&&

.EXTENDED TERM /Saturday Through Tuesday/...Upper ridging weakens
as another shortwave trough ejects from the Desert Southwest over
the south Plains to our west. This, in combination with the
persistent southerly flow at the surface and in the lower
troposphere, will support diurnal summertime convection each day
through the weekend. Best chance for thunderstorms will be during
afternoon hours, with activity tapering off each evening with the
loss of daytime heating. Above-seasonal rain chances return
everywhere early next week as the upper trough rotates into the
lower Mississippi River Valley and upper forcing increases over
the local area. Temperatures change little throughout the period
(welcome to summer along the Gulf coast), with upper 80s to low
90s expected across much of the area each afternoon. Lows range
from low 70s inland to mid 70s along the coast each night. /49

&&

.MARINE...Will have Small Craft Exercise Caution wording this
evening for the near shore waters as well as Mississippi Sound and
southern Mobile Bay due to southwest winds near 15 knots. Locally
higher winds and waves are possible near scattered to numerous
showers and thunderstorms through the period. /29

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...None.
FL...None.
MS...None.
GM...None.
&&

This product is also available on the web at:
http://weather.gov/mob

In the hours before

Special weather statement, Jun 23, 11:28 AM CDT, 4 hours 53 minutes before

Special Weather Statement
National Weather Service Mobile AL
1128 AM CDT Tue Jun 23 2020

ALZ261>266-FLZ201>206-231830-
Mobile Coastal AL-Baldwin Coastal AL-Baldwin Central AL-
Baldwin Inland AL-Mobile Inland AL-Mobile Central AL-
Escambia Inland FL-Okaloosa Inland FL-Okaloosa Coastal FL-
Santa Rosa Coastal FL-Escambia Coastal FL-Santa Rosa Inland FL-
1128 AM CDT Tue Jun 23 2020

...SCATTERED STRONG THUNDERSTORMs WILL AFFECT THE FOLLOWING
COUNTIES... MOBILE...BALDWIN...OKALOOSA...SANTA ROSA AND ESCAMBIA
COUNTIES UNTIL 130 PM CDT...

At 1126 AM CDT, scattered clusters of strong thunderstorms will
continue through the afternoon across the area.

Wind gusts of 40 to 50 mph will be possible with these clusters.

Locations impacted include...
Midtown Mobile, Downtown Mobile, Prichard, Wright, Fort Walton Beach,
Ensley, Daphne, Tillmans Corner, Crestview, Fairhope, Saraland,
Niceville, Gonzalez, Destin, Eglin AFB, Bay Minette, Foley, Pace,
Milton and Theodore.

LAT...LON 3029 8775 3023 8828 3025 8818 3036 8819
      3032 8826 3038 8824 3040 8837 3094 8842
      3099 8639 3038 8640 3032 8721 3041 8666
      3036 8720 3060 8702 3024 8782 3024 8776
      3023 8780 3022 8803
TIME...MOT...LOC 1626Z 249DEG 20KT 3070 8768

Special weather statement, Jun 23, 12:13 PM CDT, 4 hours 8 minutes before

Special Weather Statement
National Weather Service Mobile AL
1213 PM CDT Tue Jun 23 2020

ALZ055>060-FLZ201-203-205-231915-
Monroe AL-Conecuh AL-Butler AL-Escambia AL-Covington AL-Crenshaw AL-
Escambia Inland FL-Okaloosa Inland FL-Santa Rosa Inland FL-
1213 PM CDT Tue Jun 23 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHEASTERN BUTLER...SOUTHWESTERN MONROE...SOUTHERN CRENSHAW...
ESCAMBIA...CONECUH...COVINGTON...NORTHERN OKALOOSA...NORTHEASTERN
SANTA ROSA AND NORTHWESTERN ESCAMBIA COUNTIES UNTIL 215 PM CDT...

At 1212 PM CDT, scattered clusters of strong thunderstorms will
continue through the afternoon across the area.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Andalusia, Atmore, Opp, Brewton, Evergreen, Florala, Century,
Flomaton, McCullough, East Brewton, Uriah, Brantley, McKenzie, River
Falls, Castleberry, Jay, Red Level, Laurel Hill, Lockhart and Dozier.

LAT...LON 3153 8620 3099 8619 3099 8639 3096 8639
      3094 8760 3098 8759 3100 8762 3124 8762
      3125 8765 3135 8763 3171 8615 3162 8618
      3162 8615 3154 8614
TIME...MOT...LOC 1712Z 264DEG 33KT 3105 8656

Special weather statement, Jun 23, 2:40 PM CDT, 1 hour 41 minutes before

Special Weather Statement
National Weather Service Mobile AL
240 PM CDT Tue Jun 23 2020

ALZ261-262-264-FLZ201-232030-
Baldwin Central AL-Baldwin Inland AL-Mobile Inland AL-
Escambia Inland FL-
240 PM CDT Tue Jun 23 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL MOBILE...CENTRAL BALDWIN AND NORTHWESTERN ESCAMBIA COUNTIES
UNTIL 330 PM CDT...

At 239 PM CDT, the strong thunderstorm was located 8 miles east of
Satsuma, moving east at 25 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Bay Minette, Creola, Stapleton, Axis and I65 And AL 225.

LAT...LON 3069 8796 3071 8794 3071 8795 3070 8796
      3093 8806 3100 8761 3100 8754 3075 8748
      3068 8790 3068 8792 3072 8794 3075 8792
      3075 8795 3068 8793 3069 8794 3068 8795
TIME...MOT...LOC 1939Z 262DEG 20KT 3083 8792

Local storm report, Jun 23, 4:13 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
413 PM CDT TUE JUN 23 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1130 AM     TSTM WND DMG     3 E POINT CLEAR         30.47N 87.87W
06/23/2020                   BALDWIN            AL   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTS SEVEN POWER POLES
            DOWN NEAR THE INTERSECTION OF COUNTY ROAD 13
            AND COUNTY ROAD 32. TIME ESTIMATED BY RADAR.
            PICTURES VIA SOCIAL MEDIA.

&&

BB

Local storm report, Jun 23, 4:18 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
418 PM CDT TUE JUN 23 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1153 AM     MARINE TSTM WIND WALLACE TUNNEL          30.69N 88.04W
06/23/2020  M41 MPH          MOBILE             AL   MESONET

            MESONET STATION EW6967 MOBILE REPORTED A 36
            KNOT (41 MPH) MARINE THUNDERSTORM WIND GUST.

&&

BB

Special weather statement, Jun 23, 4:21 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
421 PM CDT Tue Jun 23 2020

ALZ052-053-055-056-059-232200-
Clarke AL-Monroe AL-Conecuh AL-Escambia AL-Washington AL-
421 PM CDT Tue Jun 23 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
MONROE...EAST CENTRAL WASHINGTON...CENTRAL CLARKE...NORTH CENTRAL
ESCAMBIA AND CONECUH COUNTIES UNTIL 500 PM CDT...

At 421 PM CDT, the strong thunderstorm was located 12 miles northwest
of Uriah, or 12 miles west of Frisco City, moving east at 20 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Monroeville, Jackson, Evergreen, Frisco City, Grove Hill, Peterman,
Uriah, Whatley, Castleberry, Excel, Repton and I65 And US 84.

LAT...LON 3164 8690 3154 8685 3120 8690 3127 8768
      3130 8771 3129 8779 3128 8779 3129 8797
      3172 8790
TIME...MOT...LOC 2121Z 283DEG 17KT 3146 8762

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 11:28 AM CDT	Special Weather Statement	MOB	Baldwin, Mobile	2 hr
Jun 23, 11:42 AM CDT	Special Marine Warning	MOB		48 min
Jun 23, 12:13 PM CDT	Special Weather Statement	MOB	Conecuh, Covington, Escambia	2 hr
Jun 23, 12:20 PM CDT	Special Marine Warning	MOB		115 min
Jun 23, 1:33 PM CDT	Special Marine Warning	MOB		60 min
Jun 23, 2:40 PM CDT	Special Weather Statement	MOB	Baldwin	50 min
Jun 23, 4:24 PM CDT	Special Weather Statement	MOB	Baldwin	51 min
Jun 23, 4:27 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	28 min
Jun 23, 4:37 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe	38 min
Jun 23, 5:04 PM CDT	Areal Flood Advisory	MOB	Clarke, Monroe	116 min
Jun 23, 5:13 PM CDT	Special Weather Statement	MOB	Monroe	47 min
Jun 23, 5:56 PM CDT	Special Weather Statement	MOB	Clarke, Washington	49 min
Jun 23, 6:46 PM CDT	Special Weather Statement	MOB	Wayne	59 min

Nearby

Special Weather Statements in Alabama, 2020 Every special weather statement in 2020

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.