National Weather Service Denver/Boulder CO 428 AM MDT Wed Sep 28 2016 .SHORT TERM...(Today and tonight) Issued at 428 AM MDT Wed Sep 28 2016 High amplitude upper level ridge will remain centered across the forecast area today, and then begin to shift slowly east tonight. This will keep dry weather in place. Clear skies this morning should give way to a few clouds later this afternoon into the evening but most of those would be in/near the mountains. Some models are even suggesting enough moisture and instability for a few afternoon/evening storms over the mountains but with upper level ridge and the lack of moisture see nothing more than a few high based sprinkles possible in the Summit county area. Temperatures should be similar to those observed yesterday, although some cooling should be noted on the eastern plains with a weak backdoor cold front. Dry high pressure will allow temperatures to drop to near or just above normal for lows tonight. Expect just a few mid/upper level clouds to remain in place as light southwest flow develops on the back side of the ridge. .LONG TERM...(Thursday through Tuesday) Issued at 428 AM MDT Wed Sep 28 2016 The weakening upper level ridge over eastern Colorado will deliver one more warm day on Thursday. The plains will be dry, but the mountains will be under moist southwesterly flow that will bring sub-tropical moisture to the western half of the state. Isolated showers or thunderstorms will be the result. High temperatures across the plains should reach the lower and mid 80s. Sub-tropical moisture will continue moving over the state from the southwest through Friday and Saturday as the upper ridge loses its grasp on Colorado weather and moves off to the east. The southwest flow aloft will continue producing the chance of showers in the mountains through Friday and into Saturday. Some showers may spread onto the plains Friday evening. Over the weekend, temperatures will be gradually cooling as the upper level pattern transitions to an upper trough approaching from the Pacific Northwest. By the middle of next week, temperatures will be cool enough in the mountains for precipitation to fall in the form of snow.National Ag. Weather Outlook, International Ag. Weather Summary
...PIKES PEAK/PALMER DIVIDE AND SOUTHERN FOOTHILLS... CITY SKY/WX TMP DP RH WIND PRES REMARKS COLO. SPRINGS FAIR 54 28 36 N8 30.34R A. F. ACADEMY FAIR 43 25 49 N13 30.36R SCHRIEVER AFB NOT AVBL ELLICOTT NOT AVBL FALCON FAIR 55 26 33 NW8 30.38R FORT CARSON FAIR 54 28 36 NW9 30.30R LIMON FAIR 43 26 51 NW5 30.30R MONUMENT HILL FAIR 43 27 52 MISG 30.40R TRINIDAD FAIR 49 30 48 W15 30.29R
636 AM MDT WED SEP 28 2016 DAY ONE TODAY AND TONIGHT ISOLATED THUNDERSTORMS WILL BE POSSIBLE ALONG THE CONTINENTAL DIVIDE LATE THIS AFTERNOON THROUGH THIS EVENING. THE MAIN THREAT WITH THUNDERSTORMS WILL BE LOCALIZED GUSTY OUTFLOW WINDS UP TO 40 MPH AND LIGHTNING. DAYS TWO THROUGH SEVEN THURSDAY THROUGH TUESDAY THERE WILL BE A CHANCE OF THUNDERSTORMS MAINLY OVER THE MOUNTAINS EACH DAY FROM THURSDAY THROUGH TUESDAY. THE PRIMARY THREATS FROM MOST STORMS WILL BE LIGHTNING AND GUSTY WINDS. HOWEVER A FEW OF THE STRONGER STORMS COULD ALSO PRODUCE LOCALLY HEAVY RAIN AND SMALL HAIL ESPECIALLY ON FRIDAY AND SATURDAY. SPOTTER INFORMATION STATEMENT WEATHER SPOTTERS WILL NOT BE NEEDED TODAY OR TONIGHT.
COLORADO --------------------------------------------- 6 TO 10 DAY 8 TO 14 DAY 30 DAY 90 DAY OCT 3-OCT 7 OCT 5-OCT 11 OCT OCT-DEC ----------- ----------- -------- --------- Temperature: Below Below Above Above Precipitation: Above Above Above Normal .... Medium and long range outlooks provided by NCEP/K. Thomas Priddy5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
SEPTEMBER 28TH HISTORIC WEATHER EVENTS ...1836... The first of three early season snows brought four inches of snow to Hamilton NY, and two inches to Ashby MA. (David Ludlum) ...1893... Albuquerque NM was soaked with 2.25 inches of rain, enough to establish a 24 hour record for that city. (The Weather Channel) ...1917... A hurricane hit Pensacola FL. Winds gusted to 95 mph, and the barometric pressure dipped to 28.50 inches. Winds at Mobile AL gusted to 75 mph. (The Weather Channel) ...1987... Thunderstorms produced up to ten inches of rain in southern Kansas and north central Oklahoma overnight. The Chikaskia River rose 2.5 feet above flood stage at Blackwell OK during the day causing flooding in Kay and Grant counties of north central Oklahoma. Early morning thunderstorms in the Lower Rio Grande Valley of Texas produced 3.07 inches of rain in six hours at McAllen. Thunderstorms produced up to six inches of rain in southeastern Texas later in the day. (National Weather Summary) (Storm Data) ...1988... Thunderstorms developing ahead of a cold front in the central U.S. produced severe weather from northern Texas to the Lower Missouri Valley during the late afternoon and evening hours. Hail three inches in diameter was reported at Nolan TX, and wind gusts to 80 mph were reported at Lawrence KS. Thunderstorms drenched downtown Kansas City MO with up to four inches of rain, leaving some cars stranded in water six feet deep. (Storm Data) (The National Weather Summary) ...1989... Thunderstorms over northeastern Florida drenched Jacksonville with 4.28 inches of rain between midnight and 6 AM EDT. Unseasonably cool weather prevailed in the northeastern U.S. Five cities reported record low temperatures for the date, including Binghamton NY with a reading of 30 degrees. Morning lows were in the 20s in northern New England. Unseasonably mild weather prevailed in the northwestern U.S., with afternoon highs in the upper 70s and 80s. In Oregon, Astoria reported a record high of 83 degrees. (The National Weather Summary) (Storm Data)